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Untitled Document
User Guide for Bard models including: WALL MOUNT Air Conditioners and Heat Pumps
The User's Application Guide covers a wide range of heating and cooling products manufactured by Bard. Manufacturing Company.
File Info : application/pdf, 140 Pages, 5.69MB
DocumentDocumentLiterature Assembly 911-0798
Contains the following:
2100-034(G)
User's Guide
2100-479
Leak Test, Evacuation, Charging
2100-712(E)
Wall-Mount PKG H/P Manual
2100-713(C)
Multi-Tec A/C Install Instruct
2100-714
Multi-Tec Quick Start Guide
2110-1458(D)
Replacement Parts Manual
7960-810
Supplemental 50H Instructions
7960-420
Warranty
USER'S APPLICATION GUIDE AND TECHNICAL PRODUCT OVERVIEW
Manual:
2100-034G
Supersedes: 2100-034F
Date:
12-17-20
Bard Manufacturing Company, Inc. Bryan, Ohio 43506 www.bardhvac.com
BARDHVAC.COM
Climate Control Solutions
General Information
The User's Application Guide covers a wide range of heating and cooling products manufactured by Bard Manufacturing Company. It is intended to be a general guide for care and operation of typical systems and covers the most important features you should be aware of and are responsible for as the user of the equipment.
Because our product offerings are so varied and can be equipped with many features and options, it is not possible to cover all aspects of what your specific system may be configured for. Some systems may be quite simple in features to provide basic cooling and possibly heating, while other systems may also incorporate various ventilation technologies, dehumidification circuits and many different internal controls as well as room temperature controls. Therefore, you should request a detailed operation sequence and explanation of any special features from your installer and/or service company and also have them instruct you as to any routine maintenance procedures you are responsible for.
Contents
Overview ........................................................................ 3 Documentation .............................................................4
Unit Literature Assembly Documentation Provided with Your Units .....................................................4 Unit Installation ...........................................................5 WALL MOUNT Products Mounting the Product on Wall Surface .........................................................5 WALL MOUNT Products Clearances for Outdoor Condenser Fan Airflow ...........................................6 WALL MOUNT Products Clearances for Indoor Supply and Return Airflow......................................6 WALL MOUNT Products Condensate and Defrost Drainage ..............................................................7 I-TEC and Q-TEC Products Installing the Product Inside a Room ......................................................8 I-TEC and Q-TEC Products Clearances for Outdoor Condenser Fan Airflow ...........................................8 I-TEC and Q-TEC Products Clearances for Indoor Supply and Return Airflow......................................9
I-TEC Air Path................................................9 Q-TEC Air Path...............................................9 I-TEC and Q-TEC Products Condensate Drainage .10 All Products Power Supply Verification................11 Field-Supplied Voltage ..................................11 Single and Three Phase Power .......................11 Hertz (Frequency).........................................11 Unit Maintenance .......................................................12 All Products Filters and Filter Servicing ..............12 Outdoor Unit Wall Mount Room Air Filters.......12 WALL MOUNT Products Filters and Filter Servicing ............................................................13 I-TEC Indoor Products Filters and Filter Servicing ............................................................14 Q-TEC Indoor Products Filters and Filter Servicing ............................................................15 All Products Coil Cleaning .................................16 Equipment Corrosion Protection .....................16 All Products Condenser Airflow ..........................17
Unit Operation ............................................................18 Air-to-Air Cooling Products (Air Conditioners) .........18 Air-to-Air Cooling and Heating Products (Heat Pumps) .....................................................18 Cooling Mode ...............................................18 Heating Mode ..............................................18 Water-to-Air Cooling and Heating Products (Geothermal Heat Pumps)....................................19 Cooling Mode ...............................................19 Heating Mode ..............................................19 Water Supply Systems...................................19
Dehumidification and Ventilation Operation.......20 Dehumidification (Air-to-Air or Water-to-Air Systems) ............................................................20 Ventilation Options (Air-to-Air or Water-to-Air Systems) ............................................................20
Troubleshooting .........................................................21 All Units Troubleshooting ..................................21
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Overview
The User's Application Guide and Technical Product Overview covers the following products:
WALL MOUNT Air Conditioners and Heat Pumps
I-TEC® Air Conditioners and Heat Pumps
Q-TECTM Air Conditioners and Heat Pumps
The User's Application Guide and Technical Product Overview covers the following topics:
· Documentation provided by Bard for proper use of your new product. · Unit installation guidelines. · Routine unit maintenance. · Unit operation. · Unit troubleshooting.
Please use this guide as a general overview regarding unit application, maintenance and troubleshooting. Refer to product installation instructions and supplemental documentation provided with the unit or go to www.bardhvac.com for detailed individual product information.
Overview
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Documentation
There are two sources of valuable information for your new Bard product: · Documentation provided with your unit, normally located inside the unit control panel during shipping. This
information should be saved once the unit is installed for future maintenance reference or to answer questions about equipment after installation. · Documentation provided on the internet at www.bardhvac.com. This may be accessed from a desktop computer at the office, a laptop or an internet-capable cell phone at the worksite. Up-to-date documentation is available, along with specification sheets and other valuable resources regarding your new Bard product.
Unit Literature Assembly Documentation Provided with Your Unit
Bard products are shipped with documentation that when used by a technician with cooling and heating knowledge, can ensure that your product is installed safely, performs optimally and achieves the longest life cycle possible. Shipped literature includes the following: · User Manual (this document) · Installation Instructions · Replacement Parts Manual · Wiring Diagrams · Warranty Information
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Documentation
Unit Installation
Installation plays a key part in unit functionality, performance and safety. Product securing and placement, duct design and supply/return location, electrical routing and condensate and defrost drainage all play key roles in making sure a unit will perform per the design specifications.
WALL MOUNT Products Mounting the Product on a Wall Surface
Outdoor products are normally mounted to an exterior wall surface, including brick, cement block, metal or wood construction. These products are labeled as "WALL MOUNT" units. Before installation begins, the wall surface should be inspected by a construction professional to ensure it will support the weight of the unit and accessory items. Approximate weights are available from the product specification sheet, and a safety factor should be designed into the installation. Typical fasteners to attach the unit to the wall using the integrated mounting flanges on both sides of the unit include tap cons, bolts, studs and other fastening devices. The selection of the fasteners to be used needs to be reviewed by a construction professional and decided upon based on the wall construction and fastener strength required. It is important to follow all guidelines and procedures covered in the installation instructions manual provided for the product.
Built-In Mounting Flange Detail:
Outdoor WALL MOUNT products include a mounting flange that is part of the cabinet construction. Ø.375" holes are provided for unit mounting unless specified otherwise in installation instructions.
Specification Sheets: Unit specification sheets provided at www.bardhvac.com include basic unit weights and dimensions (see example below). Ventilation options and other accessories must be added into the total weight of the unit.
Specification Sheet Example
Unit Installation Wall Mount
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WALL MOUNT Products Clearances for Outdoor Condenser Fan Airflow
Unit placement and avoidance of obstructions outside the structure are very critical to unit performance. Avoid installing the unit in areas that will obstruct outdoor condenser fan airflow or create "pockets" of heated air being exhausted from the condenser coil. Solid construction fences should not be placed directly in front of the unit without provisions for condenser airflow. Solid exterior walls need to be spaced as far away from units as possible to avoid pockets of heated air causing condenser air recirculation.
Solid barriers located too close to the face or side surfaces (condenser fan inlet and outlet) of the WALL MOUNT can both impede airflow and force heated air to short circuit (be returned) from the condenser outlet to the condenser inlet. Either condition will effectively raise the condensing temperature and pressure reducing cooling capacity and efficiency. In extreme cases, the unit may fail to operate due to high refrigerant pressures inside the unit, and compressor and/or fan motor failure may occur. Clearances given in installation instructions ensure components can be serviced and maintenance can be performed when needed.
National and local electrical codes must be reviewed before unit installation.
Always use common sense when installing products, follow unit clearances given in the installation instructions and contact local Bard distributors when additional knowledge is needed regarding unit clearances for proper unit functionality.
WALL MOUNT Products Clearances for Indoor Supply and Return Airflow
The Bard unit should be placed in an area where the supply (leaving conditioned air) and return (unit air intake) air paths will be unrestricted. Avoid placing objects in the structure within 24" of the return (unit air intake) grille. Avoid placing objects directly in the path of the supply (conditioned) air grille. This will inhibit the "throw" of the supply air throughout the structure and reduce the cooling and/or heating ability of the unit; in extreme cases, this may cause evaporator coil freezing issues. Supply air must be able to freely circulate conditioned air throughout the structure. Adjustment of supply grille deflectors is often necessary to ensure proper room circulation.
Ducted applications should not exceed the rated duct static pressures given in the unit specification sheets. Special requirements for duct construction and distances to combustible materials need to be followed per the installation instructions when electric heating is used.
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Unit Installation Wall Mount
WALL MOUNT Products Condensate and Defrost Drainage
Condensate drainage for air conditioning units needs to be planned before installation. Your new Bard WALL MOUNT product includes provisions to allow condensate water to exit the bottom of the unit. If condensate water is to be routed away from the unit, adequate drain sizing needs to be provided to allow proper drainage for condensate water generation. During normal air conditioning operation, large amounts of condensate water is generated inside the unit as moisture is extracted from the supply air. This is collected in an evaporator pan and drained to either a drainage system (indoor products) or outside the unit cabinet (outdoor products). Evaporator drain traps are not necessary for any of our wall mounted outdoor products, and the use of "standing water" U-shaped traps may be prone to freezing in certain climate zones.
Condensate Water Drainage:
Unit condensate water exits the base of the unit during cooling operation.
Defrost water drainage from heat pump units needs to be planned before installation. During seasons requiring heating operation, the unit will need to warm the condenser coil to remove frost build-up (defrost). Outdoor heat pump products include holes in the unit base under the condenser coil for proper water drainage when in the heating defrost cycle. Avoid placing the unit on a pad or blocking the base drainage holes under the condenser coil without proper allowances (6" recommended) for water drainage due to damage caused by freezing conditions. Without proper drainage, defrost water may freeze causing ice build up and damage the lower portion of the condenser coil.
Defrost Water Drainage:
Holes are provided in the front of the unit base for heat pump condensate water drainage.
Defrost Water Drainage:
6" clearance is recommended under WALL MOUNT Heat Pump products to allow proper defrost water drainage.
Unit Installation Wall Mount
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I-TEC and Q-TEC Products Installing the Product Inside a Room
Indoor products are normally supported by the floor surface and are adjacent to an interior wall surface, including brick, cement block, metal or wood construction. These products are normally labeled as "I-TEC" or "Q-TEC" units. Before installation begins, the floor surface should be inspected by a construction professional to ensure it will support the weight of the unit and accessory items. Approximate weights are available from the product specification sheet, and a safety factor should be designed into the installation.
I-TEC
A sheet metal sleeve is normally installed in the wall allowing vent and condenser fan air to enter and exit the unit. Different sleeve depths are available for installation into various wall depths. Typical fasteners to attach the sleeve to the outside surface of the wall include tap cons and other fastening devices. The I-TEC or Q-TEC unit is then slid up to the wall surface and connected to the sleeve using screws. Trim kits are available to enclose gaps between the wall surface and the unit. A louver grille is used to cover the external wall opening and fasteners used during sleeve installation.
Q-TEC
Wall Sleeve: Wall sleeves allow for outdoor air to enter and exit the unit inside the room.
Air Paths:
Air paths through the unit allow for cooling operation and fresh air to enter the structure (I-TEC shown).
Louver Installation:
Outdoor louvers provide an esthetically pleasing look to the installation and cover the unit opening (I-TEC shown).
I-TEC and Q-TEC Products Clearances for Outdoor Condenser Fan Airflow
Solid barriers located too close to the face of the outdoor louver of the I-TEC or Q-TEC can both impede airflow and force heated air to short circuit (be returned) from the condenser outlet to the condenser inlet. Either condition will effectively raise the condensing temperature and pressure reducing cooling capacity and efficiency. In extreme cases, the unit may fail to operate due to high refrigerant pressures inside the unit, and compressor and/or fan motor failure may occur. It is recommended to allow 15' (457.2 cm) in front of unit louver for proper condenser airflow. Always use common sense when installing products, follow unit clearances given in the installation instructions and contact local Bard distributors when additional knowledge is needed regarding unit clearances for proper unit functionality.
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Unit Installation I-TEC and Q-TEC
I-TEC and Q-TEC Products Clearances for Indoor Supply and Return Airflow
The Bard unit should be placed in an area where the supply (leaving conditioned air) and return (unit air intake) air paths will be unrestricted. Avoid placing objects inside the room within 24" of the return (unit air intake) louvers or grille. Avoid placing objects directly in the path of the supply (conditioned) air grilles. This will inhibit the "throw" of the supply air throughout the structure and reduce the cooling and/or heating ability of the unit and in extreme cases may cause evaporator coil freezing issues. Ducted applications should not exceed the rated duct static pressures given in the unit specification sheets. Special requirements for duct construction and distances to combustible materials need to be followed per the unit installation instructions when electric heating is used.
I-TEC Air Path
The I-TEC product has been engineered for extremely quiet unit operation and has multiple air paths for air entering and exiting the unit. Room air enters the upper sides to be conditioned (cooled) inside the unit and exits the unit top. The unit will either be ducted to supply registers or have a supply air plenum box installed. A supply air plenum box allows quiet operation without ducting the air leaving the unit. Room air also enters the bottom of both front doors during ventilation operation.
Typical I-TEC Installation
Q-TEC Air Path
The Q-TEC product has been engineered for efficient, economical unit operation and has a mid-mounted front grille for air entering the unit. The unit will either be ducted to supply registers or have a supply air plenum box installed. A supply air plenum box allows quiet operation without ducting the air leaving the unit.
Cool conditioned air exits unit
Room air enters unit
Typical Q-TEC Installation
The I-TEC and Q-TEC product installation instructions contain additional information regarding unit air paths and required clearances. This information may be accessed at www.bardhvac.com.
Unit Installation I-TEC and Q-TEC
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I-TEC and Q-TEC Products Condensate Drainage
Condensate drainage for Bard indoor cooling units is a very important part of unit installation. During normal air conditioning operation, large amounts of condensate water are generated inside the unit as moisture is extracted from the supply air. This is collected in an evaporator pan and needs to be drained to an external drainage system. Your new Bard product includes provisions to allow condensate water to exit the unit and fittings will need to be field supplied to connect the unit drain to the building. Adequate drain sizing needs to be provided to allow proper drainage for condensate water generation and restriction in drain lines should be avoided. Evaporator drain traps are not necessary unless required by local codes.
Defrost water for heat pump operation and outdoor water entering the condenser area also needs to be drained out of the unit. The I-TEC product uses a combined defrost and outdoor water drainage system. The Q-TEC has a combined defrost and evaporator drain connection unless an optional in-wall drain box is used. Outdoor water exits the Q-TEC through the wall sleeve. Follow all instructions provided in the unit installation instructions regarding drain connections and sleeve installation to avoid water leakage inside the building or structure.
I-TEC Drain System: The I-TEC drainage system consists of a manifold drain kit that combines all drains behind the unit to allow connection to the building system.
Q-TEC Drain System: The Q-TEC drainage system consists of a lower right side or lower right rear connection fitting. An optional in-wall drain box may also be purchased as an accessory that allows separate evaporator and defrost water drainage.
Lower Right Side Drain
Lower Right Rear Drain
Optional In-Wall Drain Box
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Unit Installation I-TEC and Q-TEC
All Products Power Supply Verification
It is very important to follow all electrical and mechanical safety guidelines and instructions provided in the product installation instructions. Failure to do so may result in death, injury or product damage.
A proper power supply to your new Bard unit is very important. Be sure to verify the following with a multi-meter or other power measuring device before applying power to your Bard product.
Field-Supplied Voltage
Electrical voltage ratings and proper voltage operating ranges are provided in the unit specification sheets and installation instructions. It is important that power supplied to the unit stay in the specified operating voltage range. Voltage above or below the minimum operating value given could result in improper unit startup, unit shutdown, low unit performance, improper thermostat and unit controller operation, compressor damage and premature failure of functional parts. As a general guideline, it is always best if the power source for the unit supplies the nominal electrical rating value given in the specification sheets, installation instructions and unit serial plate for the product being used. To do so will provide the best unit performance possible from your new Bard product.
Single and Three Phase Power
Bard products are available in single and three phase power options. It is important to connect the proper phase listed on the unit serial plate. Three phase power is often used to reduce energy usage, and units rated for 3 phase operation are equipped with a phase monitor safety device. The phase monitor will not allow unit operation with improper phase connection and a red LED light on the monitor indicates phase wiring issues. Connecting 3 phase power to a single phase unit will result in component damage and improper unit operation. Connecting single phase power to a 3 phase unit will also result in component damage and improper unit operation.
Hertz (Frequency)
Bard products are available in 50hz and 60hz power options. It is important to connect power with the proper hz value listed on the unit serial plate. 60hz power is often used in the United States and Canada and units rated for 50hz operation are normally for international sales outside of this area. Connecting 50hz power to a 60hz unit not rated for 50hz operation may result in component damage and improper unit operation. Some equipment may be rated for 50/60hz operation. Review the unit specifications and installation instructions for further information regarding the power requirements of the unit.
The product installation instructions and unit specification sheets contain additional information regarding unit electrical data. This information may be accessed at www.bardhvac.com.
Unit Installation Electrical
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Unit Maintenance
All Products Filters and Filter Servicing
All Bard products contain air filters that must be cleaned or replaced on a regular basis. Keeping air filter(s) clean is the single most important responsibility of the user of the equipment. Each type of system must be equipped with an air filter(s) in the indoor circulating air system to clean the air, keep the system itself clean for peak efficiency and capacity and prolong the useful life of the equipment. DO NOT operate the system without the proper air filters. Filters should be inspected at least monthly and replaced or cleaned (depending on type) as needed. The useful life of an air filter can vary widely depending upon application and use of the equipment, and it is critical to monitor filter condition and establish an acceptable maintenance schedule. Failure to do so will increase operating and repair costs, decrease capacity and efficiency and shorten the service life of the equipment. A common symptom of a dirty filter in the cooling mode is a freeze-up of the indoor coil. The air filters used may be a disposable (throwaway) type or may be a cleanable type that can be thoroughly cleaned, rinsed and reused many times. It is important to make sure that the correct filter size and type for your system is always used. If there is any question as to acceptable filter size or type, review the installation instructions for the specific equipment involved, if available. Otherwise, consult with your installing dealer or service company. Most equipment can have the filters inspected and serviced by the user with no problems. In some instances, because of equipment design or specific installation conditions, it may be necessary to have this procedure done by a qualified service company. Have your installer or service company show you where the filter(s) are and demonstrate the service procedure or make arrangements for them to provide this service on an as-needed basis. Outdoor Unit Wall Mount Room Air Filters Wall mount filters are normally accessed from the outside of the building. Bard does offer a return air grille with a filter frame built-in for indoor filter access. The return air filter grille is not acceptable as the only source of filtration if vent options are installed in the wall mount unit.
Return Air Filter Grille: Bard offers the RFG return air filter grille, which may be used in applications where outdoor air is not brought into the structure through vent options. If vent options are used, the filter tray inside the Bard Wall Mount unit must be used.
The product installation instructions contain additional information regarding unit maintenance. This information may be accessed at www.bardhvac.com.
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Unit Maintenance Filters
WALL MOUNT Products Filters and Filter Servicing
The built-in filter tray and room air filters in the wall mount are located in the middle of the cabinet below the indoor blowers. Units with vent options will have a washable screen behind the vent intake panel.
Filter Door: The unit room air filter is located behind this panel for units without a vent hood.
Vent Intake Panel Vent Hood Door:
The unit indoor filter is located behind this panel for units with a vent hood.
The hood contains a washable pre-filter that needs to be cleaned regularly.
Vent Intake Panel
Filter Door:
The unit room air filter is located behind this panel.
Unit Maintenance Filters
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I-TEC Indoor Products Filters and Filter Servicing
The I-TEC indoor air conditioners and heat pumps have multiple filters that must be maintained and inspected when servicing the unit. Filters play an important part in proper unit operation and prevent dirt and dust buildup inside the I-TEC and the room the unit is installed in. To access the unit filters, open the front hinged doors by unlocking the door latches. The doors fold outward and are on hinges with lift-off pins. Use care when opening doors. If doors are lifted off of the hinge pins, use care as the dense insulation used for sound reduction causes the doors to be heavy.
The upper section of the unit contains two 2" x 24" x 30" throwaway filters as standard with every unit. MERV ratings of the filter are available up to MERV13. These filters filter the air used for cooling inside the classroom or structure and should be changed regularly.
If the unit has an air intake vent option installed, two 1" x 12" x 20" filters are located in the lower section of the front doors behind the louvers. These filters help keep the vent option clean and operating properly.
Two washable filters are also installed in the air intake vent option. These should be inspected during servicing and cleaned when necessary. The washable filters are used to remove dirt and dust from outdoor air that is entering the vent area. If at any time these filters are damaged, they must be replaced with Bard-approved filters.
I-TEC Filter Locations:
Servicing the filters in your unit will help keep the inside of the unit clean and also the area it is installed in.
The I-TEC product installation instructions contain additional information regarding unit maintenance. This information may be accessed at www.bardhvac.com.
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Unit Maintenance Filters
Q-TEC Indoor Products Filters and Filter Servicing
The Q-TEC indoor air conditioners and heat pumps have two room air filters that must be replaced when servicing the unit. Filters play an important part in proper unit operation and prevent dirt and dust buildup inside the Q-TEC and the room the unit is installed in. To access the unit filters, open the front hinged door by unlocking the door latch. The door folds outward and is on hinges with lift-off pins. Use care when opening doors. If the door is lifted off of the hinge pins, use care as the insulation and louver grille cause the door to be heavy.
The upper section of the Q-TEC contains two 1" throwaway filters standard with every unit. These filters filter the air used for cooling inside the classroom or structure and should be changed regularly.
QWS Unit
QH/QA Unit
Q-TEC Filter Location: The Q-TEC room air filters are located behind this hinged door. Unlock door latch and remove screw to open door.
Screw location
Filter locations
Pre-filter location
The Q-TEC will have a permanent pre-filter installed inside the wall sleeve if air intake vent options are inside the unit. The pre-filter must be inspected and cleaned when necessary. The easiest way to remove the pre-filter is through the outdoor louver. Clean the pre-filter with soapy water.
The Q-TEC product installation instructions contain additional information regarding unit maintenance. This information may be accessed at www.bardhvac.com.
Unit Maintenance Filters
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All Products Coil Cleaning
The outdoor coil must be kept clean and free of any airborne debris, which can accumulate over time. Large volumes of air are circulated over the coil, and airborne debris such as lint, dust, materials shed from trees, paper or other types of airborne material that can become airborne can collect on the entering coil surface. The outdoor coil must dissipate heat during the cooling mode and for a heat pump, also absorb heat during the heating mode. If the coil is dirty and matted with debris, the airflow across the coil will be reduced causing poor performance, increased operating run time and associated utility bills and in extreme conditions can shorten the useful life of the equipment.
Depending on the specific equipment involved, the surface that can accumulate debris can be on the opposite side that is exposed to view when standing in front of the machine. Closely review the machine when operating to see which direction or path the airflow takes as it moves through the machine. If the air inlet side of the coil is hidden, try to observe the back (hidden) side by looking into the side grilles, using a flashlight if necessary. While the user of the equipment needs to be aware of the potential of clogging of the outdoor coil surface, actual cleaning of the outdoor coil should not be attempted under most circumstances. If the user should attempt this procedure on their own, never do so without first having the installing dealer or service company instruct you in the proper procedure and technique.
WARNING: Do not open or enter the equipment without first turning off the electrical service disconnect. Failure to do so can result in personal injury due to moving parts and/or electric shock hazard resulting in death.
Other conditions that can cause reduction of airflow across the outdoor coil are flowers, shrubbery or other growth too near the outdoor coil air inlet and outlet openings. These living things, especially as they mature and grow, will be just as effective in blocking the airflow and create the same problems as will stacking things against the equipment. These conditions can be easily managed and controlled by the user, as they do not require actually entering into the equipment enclosure, which should only be done by qualified service technicians.
Equipment Corrosion Protection
1. Avoid having any lawn sprinkler spray directly on the equipment, especially if from a brackish water source.
2. In coastal areas or corrosive environments, locate equipment as far away from the corrosion source as feasible. Units exposed directly to salt spray should be coated by a secondary protective coating operation to reduce corrosion on copper tubing, fasteners, motors and other metal parts. Coils should be ordered with a corrosion protective coating. Contact Bard for coating options.
3. Frequent cleaning and waxing of the cabinet using a good automobile polish will help extend its original appearance and protect painted surfaces.
The product installation instructions contain additional information regarding unit coil cleaning. This information may be accessed at www.bardhvac.com.
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Condenser Coil Cleaning
All Products Condenser Airflow
W**A, W**H, T**H, T**S, W*RV Wall Mount Units: These units are called "blow through condenser airflow" units because they draw cool outdoor air from the sides and blow the warm condenser air exiting the coil through the front grille.
C**H Wall Mount Units: These units are called "draw through condenser airflow" units because they draw cool outdoor air in the front through the coil and blow the exiting warm condenser air through the unit sides.
I-TEC and Q-TEC Units: These units draw the cool outdoor air through the top section of the wall louver and exhaust the warmer condenser air out of the lower section of the louver. I-TEC units also draw a small amount of air through the outer right and left side of the louver.
Condenser Coil Cleaning
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Unit Operation
Air-to-Air Cooling Products (Air Conditioners)
The cooling mode operates similar to a refrigerator, removing heat from inside the conditioned space and rejecting it outside of the space being controlled. There are three main parts of the system:
1. The evaporator (indoor) coil where cold refrigerant absorbs heat from the air, which circulates from the conditioned space through the machine and is returned to the space at a lower temperature and with some of the humidity (moisture) removed. The moisture exits through a condensate drain system. A motor/blower assembly moves the indoor air through the system.
2. The compressor, which is a sealed pump that moves the refrigerant through the system.
3. The condenser (outdoor) coil where the heat that was absorbed from the indoor space is discharged to the outdoor environment. A motor/fan system moves the outdoor air across the condenser coil. A properly sized air conditioner cannot cool a structure off rapidly and instead will pull down the temperature slowly. It also will remove a certain amount of moisture (humidity) from the circulating airstream in the process. It may take several hours to pull down a hot, moist building or structure on initial startup or anytime the system has been turned off for a long period of time. It is generally best to set the thermostat at a comfortable temperature and let it control the system as needed, rather than turning it on and off.
Moisture (humidity) removal with a conventional air conditioner (cooling) unit, or heat pump when operating in the cooling mode, is not directly controlled and is a by-product of the unit operating to control temperature in response to the temperature (thermostat) control device. Oversized equipment can easily control temperature but will have short run-times, thus reducing its ability to remove moisture from the circulating air stream.
There are also many additional influences that can affect humidity levels within the conditioned space such as laundry appliances, cooking, showers, exhaust fans and any other items that can generate moisture or affect its removal from the space. Therefore, while operation of the air conditioning or heat pump system in the cooling mode will remove some amount of moisture as it reduces the air temperature, precise humidity regulation in the conditioned space cannot be assured and additional equipment such as a dedicated dehumidifier may be required.
Air-to-Air Cooling and Heating Products (Heat Pumps)
A heat pump is a refrigerant-based system that has additional components and controls that both heats and cools using a compressor for both modes of operation. Most heat pumps will also be equipped with some amount of electric heat to supplement the heating capacity of the compressor system on an as-needed basis. This operation is entirely automatic and is controlled by the indoor thermostat and possibly also an outdoor thermostat.
Cooling Mode
The cooling mode of a heat pump is exactly the same as that described for an air conditioner in the above section.
Heating Mode
The system operates in reverse cycle, meaning that it absorbs and moves heat from the outdoors and transfers it indoors to be rejected into the circulating air stream. Even though it seems cold to humans, there is usable heat that can be extracted efficiently from the outdoor air down to 0ºF, although the colder the air is there is less heat to extract and the operating efficiency is diminished.
Defrost Cycle
When operating in the heating mode, the outdoor coil will be colder than the outdoor air that is forced over it by the fan system. When the outdoor air temperature is above approximately 40°F, moisture can accumulate on the coil and it will drain down and out the base of the unit. As the air temperature gets below approximately 40°F, the coil temperature will start to drop below 32°F, and frost or ice will begin to form on the coil.
An automatic defrost system keeps track of system run time when the outdoor coil temperature is in the freezing zone and will initiate a defrost cycle at the appropriate time. The unit continues to operate during the defrost cycle, but the outdoor fan motor will stop and the reversing valve will shift positions to flow hot refrigerant gas through the outdoor coil to melt the accumulated frost. Water will start to drain freely from the unit, and steam may be emitted from the unit.
The length of the defrost cycle will vary depending upon actual outdoor temperature, humidity levels and amount of accumulated frost. It could range from 1-2 minutes up to but not exceeding 8 minutes. When the defrost cycle
Manual 2100-034G Page 18 of 21
Unit Modes of Operation
terminates, the reversing valve will shift back to heating mode and the outdoor fan will restart. There is typically a large puff of steam emitted as the fan restarts. When the heat pump shifts from cool to heating mode, from heating to cooling mode and especially during defrost cycles, there will be a pressure transfer sound heard as the reversing valve redirects the flow of refrigerant. This is commonly described as a hissing noise and is a normal sound for this type equipment.
For air source heat pumps, it is important to keep heavy snow from accumulating around the machine to the point of blocking the inlet and outlet openings to the outdoor coil section. For wall mounted or other equipment that is elevated, this should not be a factor; but for equipment installed on or near the ground, this can be an issue in areas prone to heavy and/or blowing snow. The air source heat pump cannot operate effectively and efficiently when snowbound just as a car cannot function well in heavy snow conditions.
Water-to-Air Cooling and Heating Products (Geothermal Heat Pumps)
These types of heat pumps are also commonly referred to as water source or geothermal systems. Just like the air source heat pump, they are refrigerant-based systems that both heat and cool using a compressor for both modes of operation. The primary difference is that the system uses water or antifreeze-protected water solution instead of an air-cooled outdoor heat transfer coil, and there is no outdoor motor/fan system but instead a water pump to provide adequate water flow to the system.
Cooling Mode
The cooling mode of a water-to-air heat pump is exactly the same as that described for an air conditioner in the previous Air Conditioner section, except that the outdoor coil uses water instead of air for the heat transfer medium.
Heat Mode
The system operates in reverse cycle, meaning that it acquires and moves heat from the water supply flowing through the water to refrigerant coil and transfers it indoors to be rejected into the circulating air stream.
Most water-to-air heat pumps (but not all) will also be equipped with some amount of electric heat to supplement the heating capacity of the compressor system on an as-needed basis. This operation is entirely automatic and is controlled by the indoor thermostat.
Because of the design of water-to-air heat pumps and the water temperatures involved, no defrost system is required as in air-to-air heat pumps.
Water Supply Systems
Depending upon the type and application of the water-to-air heat pump, the water side of the system could be one of the following:
1. Individual closed loop buried in a trench or vertical bore hole(s).
2. Individual loop submerged in a pond.
3. Water supplied from a well and discharged into pond, stream, ditch or another well.
4. Water supplied from a boiler/tower system, typically only in larger multi-unit installations.
Unit Modes of Operation
Manual 2100-034G
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Dehumidification and Ventilation Operation
Dehumidification (Air-to-Air or Water-to-Air Systems)
Many Bard systems, typically those used in schools or other commercial applications, have a dedicated dehumidification capability by having a special additional refrigeration circuit (factory-installed option only) in addition to the basic system. These special systems, sometimes also referred to as hot gas reheat, are designed to control humidity on demand from a humidity controller much the same as the basic cooling and/or heating system is controlled by a wall thermostat. Consult your installer and/or service company to determine if your installation has any of these devices and for any instructions or maintenance requirements you should be aware of as the user.
Ventilation Options (Air-to-Air or Water-to-Air Systems)
All Bard systems are available with factory-installed vent options. Most units can have ventilation field installed after unit installation. Ventilation has multiple purposes: · Outside air intake for occupied structures · Positive pressurization · Energy savings when outdoor air can be used for cooling · Agricultural use of bringing in outdoor air and exhausting room air · Equipment and electronics ventilation Review product specifications and manuals for more details regarding available ventilation options and features. Product documentation is shipped with the product and also available at www.bardhvac.com.
Manual 2100-034G Page 20 of 21
Dehumidification and Ventilation Operation
Troubleshooting
All Units Troubleshooting
Your Bard product is made to operate for many trouble-free years if installed properly and maintenance practices are followed. Be sure to verify that all filters are clean, and condenser coils are free of dirt and debris. Often these items may look clean at first, but upon closer inspection, show signs of dirt and debris build-up. New units on new structures may have dirt and dust in filters from the building construction process.
Thermostats and unit controllers often contain vent holes for proper sensor measurement inside the device. Make sure the thermostat or controller are not full of dirt and dust from building construction or years of use.
Verify all requirements in the installation instructions and specification sheets are met. Unit voltages, airflow clearance requirements and clean unit power without brownouts or spikes play a critical role in unit performance. If 208 VAC power is supplied to the unit, the 208V tap must be used on the 24 VAC transformer located inside the control panel. Common sense must also be used when installing the unit in an environment that may put the unit at risk of improper operation.
Helpful Hints and Good Operating Practices
The following information will help you enjoy the full comfort and benefits of your Bard cooling and heating system, maximize the performance and efficiency and help extend the life of your system.
1. Always keep the equipment in peak operating condition with routine scheduled maintenance, especially for the air filters, and to assure a clean outdoor coil.
2. For most efficient operation, set the thermostat at the temperature you prefer and then let it take control. If any changes to the settings are required, they should be made in small adjustments and the system be allowed time to respond. Rapid changes either up or down should not be done.
3. Setting the thermostat very high does not make the system heat faster and setting it very low does not make it cool faster.
4. It is not recommended to turn the system "Off" then back "On" when you need it. This can allow temperature and humidity to build up in warm weather conditions and force the system to run continuously to try and catch up. If the building is to be unoccupied for a lengthy period, it is best to adjust the thermostat to a reasonable higher (or lower--depending on the season) setting rather than turning it completely off. Upon return, the inside conditions will not be totally out of control and recovery time to desired conditions would be much shorter.
5. Airflow inside the room or building is very important. Keep all supply registers open and all returns free and unrestricted. Avoid placing objects in areas that will hinder unit airflow. The heating and cooling system is designed to have a certain amount of airflow for proper operation. Therefore, closing off registers, in unused rooms as an example, could reduce airflow below acceptable levels and should not be done without review by your service company who can assess the overall situation and advise you accordingly.
6. Heat pumps, especially air-to-air heat pumps, may have the system (compressor) run continuously at lower outdoor temperatures, and this is normal. The heat pump (compressor) mode is controlled by the beginning stages of the thermostat and delivers the most efficient heat. As the outdoor temperature drops off, the heat pump mode heat will also diminish (because there is less heat in the outdoor air to absorb) and must be supplemented by additional electric heat stages, which are not as efficient as the heat pump. The thermostat automatically controls everything and the backup heat will only operate on demand as needed to maintain the desired temperature.
7. The thermostat or controller is the user's primary connection to the system so it is very important to have a thorough understanding of how it works and how to use it properly. Have your installer or service company explain and demonstrate proper operation of the controls.
8. Make sure you thoroughly understand how the heating and cooling system itself is intended to operate and what to expect from it. Have your installer or service company explain and demonstrate proper operation of the heating and cooling system.
Troubleshooting
Manual 2100-034G
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SERVICING PROCEDURE
R-410A LEAK TEST EVACUATION CHARGING
Bard Manufacturing Company, Inc. Bryan, Ohio 43506
Since 1914...Moving ahead, just as planned.
Manual No.: 2100-479
Supersedes: NEW
File:
Volume I, Tab 1
Date:
03-08-07
Manual 2100-479
Page
1 of 11
CONTENTS
General
Recovery Equipment Rated for R-410A...................3 Leak Detectors.........................................................3 Gauge Manifold........................................................3 Attaching Gauge Manifold........................................3 Attaching Manifold Hose to Schrader Valve.............4 Leak Test..................................................................4 Evacuation ........................................................ 4 & 5 Charging ..................................................................5 Preliminary Charging Steps .....................................5 Charging the System by Weight ..............................5
Troubleshooting the Mechanical System Air Conditioning & Heat Pump - Cooling.............9 Low Suction -- Low Head Pressure .........................9 High Suction -- Low Head Pressure ........................9 Low Suction -- High Head Pressure ........................9 High Suction -- High Head Pressure........................9 Heat Pump - Heating..............................................9 Low Suction -- Low Head Pressure .........................9 High Suction -- Low Head Pressure ........................9 Low Suction -- High Head Pressure ........................9 High Suction -- High Head Pressure........................9
Figures Figure 1: Typical AC System Cooling Cycle.............6 Figure 2: Typical HP System Cooling Cycle ............7 Figure 3: Heating Cycle ...........................................8
Charts Troubleshooting Chart for Air Conditioners ............10 Troubleshooting Chart for Air-to-Air Heat Pumps....11
Manual 2100-479 Page 2 of 11
GENERAL
WARNING
The oils used with R-410A refrigerant are hydroscopic and absorb water from the atmosphere readily. Do not leave systems open to the atmosphere for more than 5 minutes. If the system has been open for more than 5 minutes, change the filter dryer immediately before evacuation. Then recharge the system to the factory specified charge.
Recovery equipment rated for R-410A refrigerant R-410A has an ozone depletion potential of zero, but must be reclaimed due to its global warming potential.
The gauge manifold set is specially designed to withstand the higher pressure associated with R-410A. Manifold sets are required to range up to 800 psig on the high side and 250 psig on the low side with a 250 psig low side retard.
All hoses must have a service rating of 800 psig. (This information will be indicated on the hoses.)
Vacuum Pump and micron gauge must be used when evacuating a system to 500 microns.
Leak Detectors An electronic leak detector capable of detecting HFC refrigerant can be used with R-410A refrigerant.
GAUGE MANIFOLD
WARNING
Gauge manifold must be suitable for use with R-410A refrigerant and POE oils.
A necessary instrument in checking and serving air conditioning and heat pump equipment is the gauge manifold. Its purpose is to determine the operating refrigerant pressures in order for the serviceman to analyze the condition of the system.
The valving on the manifold is so arranged that when the valves are closed (front-seated) the center port on the manifold is closed to the gauges and gauge ports. With the valves in the closed position, the gauge ports are still open to the gauges, permitting the gauges to register system pressures. Opening either valve opens the center port to that side of the manifold and system.
ATTACHING GAUGE MANIFOLD
For leak testing, purging, checking charge, charging liquid or evacuating, connect high pressure side of gauge manifold to Schrader valve on liquid or discharge line. Connect suction side of gauge manifold to Schrader valve on suction line. On heat pumps the suction line is between compressor and reversing valve.
Manual 2100-479
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ATTACHING MANIFOLD HOSE TO SCHRADER VALVE
WARNING
As a safety measure, it is wise to detach refrigerant hoses at the lowest pressure readings on the system. To do this:
A. Put high pressure hose "B" on first. (Unit should not be running.)
B. Put low pressure hose "A" on second. (Unit should be running.)
1. Remove cap from valve. 2. Make sure gauge manifold valves are closed. 3. If hose does not have an unseating pin, a number 395
Superior or equivalent unseating coupler must be used. 4. Make sure coupler is lined up straight with Schrader
valve. Screw coupler on to valve. 5. Open gauge manifold valve slightly and purge air from
hose with refrigerant. 6. Read the suction pressure on compound gauge and heat
pressure on pressure gauge. 7. To remove, push end of hose tight against end of Schrader
valve and hold in place while quickly unscrewing coupler nut from Schrader valve. 8. Remove coupler from Schrader valve. Replace caps on valve.
Leak Test 1. Remove gauge port cap from suction and liquid service
valve ports and attach manifold gauge hoses. Connect an upright R-410A drum to center port of gauge manifold. Open refrigerant drum valve and manifold high pressure gauge valve to pressurize system to a positive pressure with refrigerant vapor. Pressurize the complete system with dry nitrogen, or CO2 until the pressure reaches 200 psig. Do not exceed 250 psig. 2. Close manifold high pressure gauge valve. Check all soldered joints, including those on the evaporator coil with an Electronic Leak Detector suitable for use with HFC refrigerants or R-410A. If a leak is found which requires soldering, pressure in the system must be bled off since it is impossible to solder with unit pressurized. Be sure all leaks are located and marked before bleeding pressure from system.
Manual 2100-479 Page 4 of 11
3. Close drum valve and disconnect from center port. Release nitrogen or CO2 into the atmosphere through suction line of gauge manifold.
4. Correct any leaks and recheck. When leaks, if any, have been repaired, system is ready to be evacuated and charged. Relieve all pressure from the system down to 0 psig.
5. Change the filter dryer. When leaks, if any, have been repaired, system is ready to be evacuated and charged. Relieve all pressure from the system down to 0 psig.
EVACUATION
Evacuation An evacuation to 500 microns is usually sufficient to remove moisture from a system using R-22 and mineral oil lubricant. A 500 micron evacuation, however, will not separate moisture from Polyol Ester oil (POE) in R-410A systems.
In addition to a 500 micron evacuation, the liquid line filter dryer (R-410A compatible) must be replaced any time the system is open. When removing a filter dryer from a system, do not use a torch; use a tubing cutter to avoid releasing moisture back into the system.
Older R-22 leak detectors, as well as halide torch leak detectors, will not detect leaks in R-410A systems. Never use air and R-410A to leak check, as the mixture may become flammable at pressures above 1 atmosphere. A system can be safely leak-checked by using nitrogen or a trace gas of R-410A and nitrogen. Remember: Always use a pressure regulator with nitrogen and a safety valve down stream - set at no more than 150 psig.
1. Evacuate system to less than 500 microns, using a good vacuum pump and an accurate high vacuum gauge. Operate the pump below 500 microns for 60 minutes and then close valve to the vacuum pump. Allow the system to stand for 30 additional minutes to be sure a 500 micron vacuum or less is maintained.
WARNING
At no time use the compressor to evacuate the system or any part of it.
2. Disconnect charging line at vacuum pump and connect to refrigerant supply. Crack the cylinder valve and purge charging line at center on manifold. Then close cylinder valve.
3. The system is now ready for the correct operating charge of Refrigerant R-410A.
R-410A System Charging Even though R-410A has a very small fractionation potential, it cannot be ignored completely when charging. To avoid fractionation, charging of an air conditioner or heat pump system incorporating R-410A shall be done with "liquid" to maintain optimum system performance. To insure that the proper blend composition is charged into the system, it is important that liquid only be removed from the charging cylinder. Some cylinders supplied by manufacturers have dip tubes, which allow liquid refrigerant to be removed from the cylinder when it is in the upright position. Cylinders without dip tubes have to be tipped upside down in order for liquid to be removed. The Service Technician must differentiate between which type of charging cylinder they are using to avoid removing vapor refrigerant instead of liquid refrigerant to avoid fractionation and for safety concerns.
Connect the gauge manifold to the high and low side. Allow liquid to enter the high side only. The high side will hold 80100% of the total charge. When liquid stops flowing, close high side port. The remainder of the charge will be added to the low side. Keep in mind two issues: first, never start the compressor with less than 55 psig of suction pressure. Secondly, make sure the liquid is throttled, thus vaporized into the low side of the system to avoid compressor damage. A throttling valve can be used to insure that liquid is converted to vapor prior to entering the system. Proper manipulation (restricting) of the manifold gauge set can also act as a throttling device to insure liquid is not entering the compressor.
CHARGING THE SYSTEM BY WEIGHT
1. Connect manifold as instructed.
2. Place refrigerant drum upright on scale and determine exact weight of the refrigerant and cylinder.
3. With manifold suction valve closed and manifold discharge valve open, open refrigerant cylinder liquid valve and allow pressure in system to balance with pressure of cylinder or 80% of charge is in the unit whichever comes first.
4. When there is approximately an 80% charge, front seat (close) the discharge manifold valve and let the system stabilize for about five minutes.
5. Start compressor by setting thermostat.
6. Finish charging with liquid by cracking the suction valve. Open the manifold low pressure valve to allow refrigerant to flow into the system. Throttle the manifold valve to keep pressure about 100 psig for R-410A.
7. When the correct weight of refrigerant has been added to the unit, close refrigerant cylinder valve and allow unit to run for 30 minutes. Refer to Start-Up Procedure and Check List for further start-up details.
8. Front seat gauge manifold valves, disconnect charging and gauge hoses and replace all valve caps.
CHARGING
1. Single Package Units -- Refer to the unit serial plate for the full operating charge.
PRELIMINARY CHARGING STEPS
If the system has been open to the atmosphere, the filter dryer should be replaced and then evacuated. Then proceed as follows:
1. Attach a drum of proper, clean refrigerant to the center port of the charging manifold with one of the charging hoses.
2. Attach a second charging hose to the suction gauge (low pressure) side of the gauge manifold.
3. Remove the cap from the suction line valve.
4. Loosely attach the suction gauge hose to the line valve. Open the valve on the refrigerant drum and the suction valve on the charging manifold slightly to purge the air from the manifold and hoses before tightening the fitting.
5. Attach the third hose to the high pressure side of the manifold and the liquid line valve. Repeat steps 3 and 4 above.
Manual 2100-479
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FIGURE 1 TYPICAL AIR CONDITIONING SYSTEM COOLING CYCLE
Manual 2100-479 Page 6 of 11
MIS-369
FIGURE 2 TYPICAL HEAT PUMP SYSTEM COOLING CYCLE
MIS-368
Manual 2100-479
Page
7 of 11
WARNING
To speed refrigerant flow, it may be necessary to place refrigerant drum in a pan of warm water (not greater than 130ºF). Remember to either consider the total weight of the pan of water or remove the drum for weighing frequently to keep track of the charging process.
FIGURE 3 HEATING CYCLE
Manual 2100-479 Page 8 of 11
MIS-289
TroubleshooTing The Mechanical sysTeM
AIR CONDITIONING AND HEAT PUMP -- COOLING
LOW SUCTION -- LOW HEAD PRESSURE
1. Restricted airflow over indoor coil. 2. Defective indoor fan motor. 3. Low indoor temperature 4. Iced indoor coil. 5. Restricted liquid line, dryer, metering device, etc. 6. Low charge. 7. Low ambient entering air temperature. (Low entering
water temperature to water coil.)
HIGH SUCTION -- LOW HEAD PRESSURE
1. Defective or broken valves. 2. IPRV valve open. 3. Defective reversing valve.
LOW SUCTION -- HIGH HEAD PRESSURE
1. Partial restriction and then overcharged.
HIGH SUCTION -- HIGH HEAD PRESSURE
1. High entering outdoor air temperature. (High entering water temperature.)
2. Low airflow outdoor coil. (Low water flow.) 3. Overcharged. 4. Air in system. 5. Restricted outdoor coil. (Restricted water coil.) 6. High indoor air temperature.
Water source heat pump.
HEAT PUMP -- HEATING
LOW SUCTION -- LOW HEAD PRESSURE
1. Restricted airflow through outdoor coil. (Restricted water flow through water coil.)
2. Defective outdoor motor. (Defective water pump.) 3. Low outdoor air temperature. (Low water
temperature.) 4. Frozen outdoor coil. (Frozen water coil.) 5. Restricted liquid line, dryer, metering device, etc. 6. Low charge. 7. Low indoor air temperature.
HIGH SUCTION -- LOW HEAD PRESSURE
1. Defective or broken valves. 2. IPR valve open. 3. Defective reversing valve.
LOW SUCTION -- HIGH HEAD PRESSURE
1. Partial restriction and then overcharged.
HIGH SUCTION -- HIGH HEAD PRESSURE
1. High entering outdoor air temperature. (High entering water temperature.)
2. Low indoor airflow. 3. Overcharged. 4. Air in system. 5. Restricted air coil. 6. High indoor air temperature.
Water source heat pump.
Manual 2100-479
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Manual 2100-479 Page 10 of 11
y Generally the cause. Always make these checks first.
Occasionally the cause. Make these checks only if first checks fail to locate trouble.
Rarely the cause. Make this check only if previous checks fail to locate trouble.
Compressor and condenser fan motor will not start Compressor will not start but condenser fan will run Condenser fan motor will not start
Compressor "hums" but will not start
Compressor cycles on overload
Compressor short cycles on low pressure
Compressor runs continuously--no cooling
Compressor runs continuously --cooling
Compressor noisy
Compressor loses oil
Head pressure too high
Head pressure too low
Liquid line frosting or sweating
Suction pressure too high
Suction pressure too low
Evaporator frosting
Suction line frosting or sweating
Evaporator blower will not start
Condenser fan motor runs contactor not pulled in Liquid refrigerant flooding back to compressor-- cap tube system Space temperature too high
Meter to Line Side of Contactor
TROUBLESHOOTING CHART FOR AIR CONDITIONERS
Power Supply
Load Side of Contactor to Motor Terminal
Control Circuit
Motors
Power Failure Blown Fuses or Tripped Circuit Breakers Faulty Wiring Loose Terminals Low Voltage Single 1PH Failure of 3PH Unbalanced Power Supply 3PH Voltage Too High Open Disconnect Switch Faulty Wiring Loose Terminal Low Voltage Defective Contacts in Contactor Compressor Overload Potential Relay Fails to Open Potential Relay Fails to Close Run Capacitor Start Capacitor Faulty Wiring Loose Terminals Control Transformer Low Voltage Thermostat Contactor Coil Pressure Control Condenser Fan Relay Evaporator Fan Relay Compressor Motor Condenser Motor Evaporator Motor Compressor Off on Internal Overload
Hold Down Bolts Defective Compressor Bearings Seized Compressor Defective Compressor Valves Compressor Oil Level Open or Short Motor Windings Refrigerant Charge Low
Overcharge of Refrigerant High Head Pressure High Suction Pressure Low Suction Pressure Temperatures Non-Condensables (Air, etc.) Excessive Load in Space Liquid Valve Partially Closed Condenser Fins Dirty or Plugged Condenser Fan Belt Slipping Condenser Air Short Circuiting Low Condenser Air Volume Condenser Air Temperature Low
Plugged or Restricted Metering Device Evaporator Fins Dirty or Plugged Evaporator Belt Slipping Low Evaporator Air Volume Dirty Filters Ductwork Small or Restricted Restrictions Thermostat Setting Thermostat Location Stratified Air in Space Incorrect Refrigerant Piping System Too Small
Compressor
High Pressure Side of System System Operation
Condenser Air
Low Side Evaporator Air
General
Page
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Manual 2100-479
Heating Cycle
Cooling Cycle
Heating or Cooling Cycles
y Denotes
common cause.
Denotes
occasional cause.
TROUBLESHOOTING CHART FOR AIR TO AIR HEAT PUMPS
Compressor and O.D. fan motor do not operate Compressor will not run O.D. fan motor runs Compressor "hums" but will not start
Compressor cycles on overload
Compressor off on high pressure control
Compressor noisy
Head pressure too high
Head pressure too low
Suction pressure too high
Suction pressure too low
I.D. blower will not start
I.D. coil frosting or icing-
High compressor amps
Compressor runs continuously--no cooling Liquid refrigerant flooding back to compressor Compressor runs continuously--no heating
Defrost cycle initiates no ice on coil
Reversing valve does not shift Ice build up on lower part of O.D. coil Liquid refrigerant flooding back to compressor Auxiliary heat on I.D. blower off
Excessive operating costs
Excessive ice on O.D. coil
Line Voltage
Power Supply
Control Circuit
Compressor
Refrigerant System
Power Failure Blown Fuse or Tripped Breaker Faulty Wiring Loose Terminals Low Voltage Single 1PH Failure of 3PH Unbalanced 3PH Defective Contacts in Contactor Compressor Overload Potential Relay Run Capacitor Start Capacitor Faulty Wiring Loose Terminals Control Transformer Low Voltage Thermostat Contactor Coil Pressure Control or Impedance Relay Indoor Fan Relay Discharge Line Hitting Inside of Shell Bearings Defective Seized Valve Defective Motor Windings Defective Refrigerant Charge Low Refrigerant Overcharge High Head Pressure Low Head Pressure High Suction Pressure Low Suction Pressure Non-Condensables Unequalized Pressures Sensing Bulb Loose-Poorly Located Cycle Too Long (Clock timer) Defective Control, Timer or Relay Leaking Defective Valve or Coil Sticking Closed Leaking or Defective
Plugged or Restricted Meter Device (Htg)
Fins Dirty or Plugged Motor Winding Defective Recirculation or Air Air Volume Low (Cooling) Low Temperature Coil Air (Cooling)
Plugged or Restricted Metering Device (Clg)
Fins Dirty or Plugged Motor Winding Defective Air Volume Low Air Filters Dirty Undersized or Restricted Ductwork Sticking Closed Leaking or Defective Auxiliary Heat Upstream of Coil
Outdoor Section
Defrost Control
Rev. Valve
Check Valve
Outdoor Fan Motor and Coil
Indoor Section
Indoor Blower Motor and Coil
Aux. Heat Check
SERVICE INSTRUCTIONS
MULTI-TEC® Wall-Mount Air Conditioner
Models:
W18ABP* W24ABP* W30ABP* W36ABE* W36ABP*
W18LBP* W24LBP* W30LBP* W36LBP*
NOTE: LC6000 controller is required for operation when multiple MULTI-TEC wall-mount air conditioners are used.
Bard Manufacturing Company, Inc. Bryan, Ohio 43506 www.bardhvac.com
Manual:
2100-712E
Supersedes: 2100-712D
Date:
7-2-21
Page
1 of 38
CONTENTS
General Information .......................................... 4 Air Conditioning System ................................ 4 Wall-Mount Air Conditioner Units ................... 4 General........................................................ 4 Shipping Damage ......................................... 4 Additional Publications ................................. 4
Using the TEC-EYETM.......................................... 6 TEC-EYE Hand-Held Service Tool ................... 6 TEC-EYE Screen Structure and Password Level ....................................... 7 TEC-EYE Acronyms ................................. 7 Status Screen......................................... 7 Quick Menu............................................ 8 Setpoints ......................................... 8 Information ...................................... 8 Alarm Log ........................................ 8 Addressing Wall-Mount Units ................... 9 Setting Unit Zone ................................... 9 Additional Features ................................. 9 Software Versioning Guide ................. 9 Model/Serial Number Retain .............. 9 Model/Number Verification................. 9 Time/Date/Timezone Sync .................. 9 Executing a Self Test............................. 10 Parameter Description ..................... 10 Changing Free Cooling Type ................... 10 Entering Model/Serial Number ............... 10
Alarms................................................................ 11 Acknowledging/Clearing Alarms .................... 11 Clearing Alarms .................................... 11 Clearing Alarm Logs .............................. 11 Alarm Adjustment....................................... 11 Mixed Air Alarm.................................... 11 Refrigerant Low Pressure ....................... 12 Refrigerant High Pressure ...................... 12 Economizer Damper .............................. 12 Freezestat ............................................ 13
Control Operation ............................................ 14 On/Off Control ............................................ 14 Blower Control............................................ 14 Balanced Climate Mode............................... 14 Balanced Climate Enable/Disable ........... 14 Temperature Control.................................... 15 Cooling Sequence Economizer Available .. 15 Cooling Sequence Economizer N/A....... 15 Heating Sequence................................. 16 Free Cooling ............................................... 16 Economizer Disable............................... 16 Economizer Enable ............................... 17 None ............................................. 17 Drybulb Only .................................. 17
Temperature and Humidity (Default) .. 17 Enthalpy ........................................ 17 Economizer Modulation ......................... 17 Emergency Cooling ..................................... 18 Unit Disable ............................................... 18 Compressor ................................................ 18 Enable ................................................. 18 Delays and Run Time............................. 18 Dehumidification ........................................ 18 Dehumidification Modes ........................ 19 Dehumidification Off ....................... 19 Passive Dehumidification................. 19 Active Dehumidification................... 19 Electric Reheat Dehumidification ........... 19 Electric Reheat Dehumification Operation ....................................... 19
General Refrigerant Information.................. 22 General ..................................................... 22 Topping Off System Charge .......................... 22 Safety Practices.......................................... 22 R410A Refrigerant Charge........................... 22
Componentry .................................................... 24 High Pressure Switch .................................. 24 Three Phase Scroll Compressor Start Up Information ................................... 24 Phase Monitor ............................................ 24 Condenser Fan Operation............................. 24 Low Ambient Control................................... 24 Compressor Control Module (CCM) ............... 24 Delay-on-Make Timer............................. 24 Short Cycle Protection/Delay-on-Break .... 25 High Pressure Detection ........................ 25 Test Mode ............................................ 25 Brownout Protection w/Adjustment............. 25 Pressure Service Ports................................. 26 Outdoor Fan Motor...................................... 25
Maintenance and Troubleshooting .............. 29 Standard Maintenance Procedures ............... 29 Removal of Fan Shroud ............................... 29 Troubleshooting Nidec SelecTech ECM Motors .. 30 Dirty Filter Switch....................................... 32 Dirty Filter Switch Adjustment ............... 32 8301-057 AIrflow Differential/ Dirty Filter Switch....................................... 34 8301-067 Outdoor Temperature/Humidity Sensor ..................................................... 34 8408-044 Return Air Sensor/ Suction Sensor ........................................... 37
Alarm Index ...................................................... 38
Manual 2100-712E Page 2 of 38
FIGURES AND TABLES
Figure 1
Figure 2 Figure 3 Figure 4 Figure 5 Figure 6 Figure 7 Figure 8 Figure 9 Figure 10 Figure 11 Figure 12 Figure 13 Figure 14 Figure 15 Figure 16 Figure 17 Figure 18 Figure 19 Figure 20 Figure 21 Figure 22 Figure 23 Figure 24 Figure 25 Figure 26
MULTI-TEC W18-36A/LB Wall-Mount Unit Model Nomenclature .................. 3 TEC-EYE Display and Interface ......... 6 TEC-EYE Connection to Unit Control.. 6 Quick Menu Icons............................ 8 Cooling and Heating Setpoints .......... 8 Last 24 Hour Tracking...................... 8 Last 24 Hour Tracking...................... 8 Software Version Information ............ 8 Alarm Log Screen Breakdown............ 8 Unit Configuration ........................... 9 Executing Self Test ........................ 10 Entering Model/Serial Number ........ 10 Alarm Screen Breakdown................ 11 Clearing Alarms ............................. 11 Clearing Alarm Logs ....................... 11 Adjusting Mixed Air Alarm Values .... 12 Adjusting Damper Alarm Values ...... 12 Adjusting Freeze Alarm Values ........ 13 Blower Speeds .............................. 14 Balanced Climate Enable/Disable .... 15 Wall-Mount Unit Cooling Staging..... 15 Adjusting Cooling Differential Values .. 16 Adjusting Heating Differential Values . 16 Wall-Mount Unit Heating Staging .... 16 Economizer A4 Screen ................... 17 Economizer A5 Screen ................... 17
Figure 27 Adjusting Damper Modulation Values .......................................... 17
Figure 28 Making Adjustments to Unit Disable .. 18 Figure 29 Dehumidification Control ................ 20 Figure 30 Wall-Mount Unit Control Board ....... 20 Figure 31 8201-169 Compressor Control
Module ......................................... 25 Figure 32 Fan Blade Setting.......................... 26 Figure 33 Motor Connections......................... 30 Figure 34 Motor Connections......................... 31 Figure 35 Dirty Filter Switch Location ............ 32 Figure 36 Adjusting Dirty Filter Switch ........... 33 Figure 37 8301-057 Switch Terminals ........... 34 Figure 38 8301-067 Sensor Dip Switches ...... 34
Table 1
Table 2 Table 3 Table 4 Table 5 Table 6A Table 6B Table 7
Table 8 Table 9
Table 10
LC1000/TEC-EYE Passwords (Defaults) ....................................... 7 Wall-Mount Unit Status Messages ..... 7 Software Versioning Guide ................ 9 Unit Control Board Terminals .......... 21 MULTI-TEC Cooling Pressures......... 23 W18-36AB* Optional Accessories ... 27 W18-36LB* Optional Accessories ... 28 8301-067 Sensor: Temperature/ Resistance .................................... 35 8301-067 Sensor: Humidity/Voltage.. 36 8408-044 Sensor: Temperature/ Resistance Curve J......................... 37 Wall-Mount Unit Alarm Index.......... 38
FIGURE 1 MULTI-TEC W18-36A/LB Wall-Mount Unit Model Nomenclature
W 36 A B P A 10 5 X X X X E
MODEL SERIES
CAPACITY 18 1½ Ton
24 2 Ton 30 2½ Ton
36 3 Ton
A Right Hand L Left Hand
REVISION
P PLC Logic Board E PLC with Electric Reheat Dehumidification
A 230/208/60/1 B 230/208/60/3 C 460/60/3 D 240/220/50/1
VOLTS & PHASE E 240/220/50/3
or 220/200/50/3 F 415/380/50/3 Q 575/60/3
KW
VENTILATION OPTIONS B Blank-off Plate 5 or E Economizer
Having "B" in this position in the model number disables all economizer function. Emergency vent will still operate when "B" is in this position.
CONTROL MODULES E Low Ambient Control C Low Ambient Control
& Crank Case Heater
COIL OPTIONS X Standard 1 Phenolic Coated Evaporator 2 Phenolic Coated Condenser 3 Phenolic Coated Evaporator
and Condenser 4 Coated Coils and Condenser
Section 5 Coated Coils, Inside and
Outside of Unit
PLACEHOLDER X for future use
COLOR OPTIONS X Beige (Standard) 1 White 4 Buckeye Gray 5 Desert Brown
8 Dark Bronze S Stainless Steel A Aluminum
FILTER OPTIONS X 1" Throwaway (Standard) W 1" Washable P 2" Pleated (MERV 8) M 2" Pleated (MERV 11) N 2" Pleated (MERV 13)
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GENERAL INFORMATION
Air Conditioning System
The Bard air conditioning system is composed of MULTI-TEC wall-mounted air conditioners matched with an LC6000 supervisory controller or Bard PGD stand-alone display. If only one wall-mounted air conditioner is being used, it can be matched with either the LC6000 supervisory controller or a PGD stand-alone display. If more than one wall-mount unit is installed, the LC6000 controller must be matched with the air conditioning units. The wall mounts are specifically engineered for telecom/motor control center rooms.
NOTE:
The LC6000 supervisory controller and MULTITEC wall-mount units are designed specifically to work together. The controller cannot run other brands of systems, nor can other controllers run the MULTI-TEC wall-mount units. They are a complete system, and must be used together.
Wall-Mount Air Conditioner Units
The MULTI-TEC units are designed to supply full rated cooling airflow in free cooling mode with ability to exhaust the same amount through the unit itself without any additional relief openings in the shelter. In the event that free cooling operation cannot satisfy the load requirements, mechanical cooling will be utilized to assist in cooling the shelter.
MULTI-TEC units are fully charged with refrigerant and have optional electric heat.
General
The equipment covered in this manual is to be installed by trained, experienced service and installation technicians.
The refrigerant system is completely assembled and charged. All internal wiring is complete.
The unit is designed for use with or without duct work. Flanges are provided for attaching the supply and return ducts.
These instructions explain the recommended method to install the air cooled self-contained unit and the electrical wiring connections to the unit.
These instructions and any instructions packaged with any separate equipment required to make up the entire air conditioning system should be carefully read before beginning the installation. Note particularly any tags and/or labels attached to the equipment.
While these instructions are intended as a general recommended guide, they do not supersede any national and/or local codes in any way. Authorities having jurisdiction should be consulted before the installation is made. See ADDITIONAL PUBLICATIONS for information on codes and standards.
Sizing of systems for proposed installation should be based on heat loss and heat gain calculations made according to methods of Air Conditioning Contractors of America (ACCA). The air duct should be installed in accordance with the Standards of the National Fire Protection Association for the Installation of Air Conditioning and Ventilating Systems of Other Than Residence Type, NFPA No. 90A, and Residence Type Warm Air Heating and Air Conditioning Systems, NFPA No. 90B. Where local regulations are at a variance with instructions, installer should adhere to local codes.
Shipping Damage
Upon receipt of equipment, the cartons should be checked for external signs of shipping damage. If damage is found, the receiving party must contact the last carrier immediately, preferably in writing, requesting inspection by the carrier's agent.
These units must remain in upright position at all times.
Additional Publications
These publications can help when installing the air conditioner. They can usually be found at the local library or purchased directly from the publisher. Be sure to consult the current edition of each standard.
National Electrical Code ......................ANSI/NFPA 70
Standard for the Installation of Air Conditioning and Ventilating Systems ...................ANSI/NFPA 90A
Standard for Warm Air Heating and Air Conditioning Systems ............ANSI/NFPA 90B
Load Calculation for Residential Winter and Summer Air Conditioning ............. ACCA Manual J
Duct Design for Residential Winter and Summer Air Conditioning and Equipment Selection ....................................................... ACCA Manual D
For more information, contact these publishers:
Air Conditioning Contractors of America (ACCA) 1712 New Hampshire Ave. N.W. Washington, DC 20009 Telephone: (202) 483-9370 Fax: (202) 234-4721
American National Standards Institute (ANSI) 11 West Street, 13th Floor New York, NY 10036 Telephone: (212) 642-4900 Fax: (212) 302-1286
Manual 2100-712E Page 4 of 38
American Society of Heating, Refrigeration and Air Conditioning Engineers, Inc. (ASHRAE) 1791 Tullie Circle, N.E. Atlanta, GA 30329-2305 Telephone: (404) 636-8400 Fax: (404) 321-5478
National Fire Protection Association (NFPA) Batterymarch Park P. O. Box 9101 Quincy, MA 02269-9901 Telephone: (800) 344-3555 Fax: (617) 984-7057
ANSI Z535.5 Definitions:
DANGER: Indicate[s] a hazardous situation which, if not avoided, will result in death or serious injury. The signal word "DANGER" is to be limited to the most extreme situations. DANGER [signs] should not be used for property damage hazards unless personal injury risk appropriate to these levels is also involved.
WARNING: Indicate[s] a hazardous situation which, if not avoided, could result in death or serious injury. WARNING [signs] should not be used for property damage hazards unless personal injury risk appropriate to this level is also involved.
CAUTION: Indicate[s] a hazardous situation which, if not avoided, could result in minor or moderate injury. CAUTION [signs] without a safety alert symbol may be used to alert against unsafe practices that can result in property damage only.
NOTICE: [this header is] preferred to address practices not related to personal injury. The safety alert symbol shall not be used with this signal word. As an alternative to "NOTICE" the word "CAUTION" without the safety alert symbol may be used to indicate a message not related to personal injury.
! WARNI NG
Electrical shock hazard. Have a properly trained individual perform these tasks. Failure to do so could result in electric shock or death.
! WARNI NG
Electrical shock hazard. Do not operate this equipment without an earth ground attached and always disconnect the remote electric power supplies before servicing. Electrical shock can result in serious injury or death.
! WARNI NG
Fire hazard. Maintain minimum 1/4" clearance between the supply air duct and combustible materials in the first 3' feet of ducting. Failure to do so could result in fire causing damage, injury or death.
! WARNI NG
Heavy item hazard. Use more than one person to handle unit. Failure to do so could result in unit damage or serious injury.
! CAUTI ON
Sharp metallic edges. Take care and wear appropriate protective devices to avoid accidental contact with sharp edges. Failure to do so can result in personal injury.
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USING THE TEC-EYETM
FIGURE 2 TEC-EYE (Bard P/N 8301-059) Display and Interface (Status Screen Shown)
ALARM KEY
UP KEY
MENU KEY
ENTER KEY
ESCAPE KEY
DOWN KEY
ALARM KEY Allows viewing of active alarms Silences audible alarms Resets active alarms
MENU KEY Allows entry to Main Menu
ESCAPE KEY Returns to previous menu level Cancels a changed entry
UP KEY Steps to next screen in the display menu Changes (increases) the value of a modifiable field
ENTER KEY Accepts current value of a modifiable field Advances cursor
DOWN KEY Steps back to previous screen in the display menu Changes (decreases) the value of a modifiable field
TEC-EYE Hand-Held Service Tool
The TEC-EYE service tool is used to communicate with the MULTI-TEC unit logic board. By connecting directly to the logic board inside the unit control panel, it is possible to perform diagnostics on the unit, adjust certain settings and verify unit and economizer operation through a self test procedure. The TEC-EYE service tool is required for unit setup and operation. The TEC-EYE is supplied with the LC6000 controller but can also be ordered separately (Bard P/N 8301-059).
The menu driven interface provides users the ability to scroll through two menu levels: Quick Menu and Main Menu. The menus permit the user to easily view, control and configure the unit.
The controller is completely programmed at the factory; the default setpoints and their ranges are easily viewed and adjusted from the TEC-EYE display. The program and operating parameters are permanently stored on FLASH-MEMORY in case of power failure.
The TEC-EYE connects to the wall-mount unit control board via an RJ11 modular connector as shown in Figure 3.
When not being used, the TEC-EYE hand-held diagnostic tool should be stored inside or near the LC6000 controller. Do not let the TEC-EYE leave the shelter.
FIGURE 3 TEC-EYE Connection to Unit Control
Modular Connector for TEC-EYE Hand-Held Service Tool
NOTE Screenshots shown in this manual reflect default settings (when applicable).
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TABLE 1 LC6000/TEC-EYE Passwords (Defaults)
User
2000
Technician
1313
Engineer
9254
Use UP or DOWN keys and ENTER key to enter password
TEC-EYE Screen Structure and Password Level
Quick Menu Setpoints (Stand Alone Temperature Control) Information Alarm Log
Main Menu A System Config: A1-A11 User (2000) B Adv Sys Config: B1-B5 Technician (1313) C I-O Config: C1-C9 Technician (1313) D On/Off: User (2000) E Alarm Logs: User (2000) F Settings Date/Time: Technician (1313) Language: User (2000) Initialization Clear Logs: User (2000) System Default: Engineer (9254) Alarm Export: User (2000) 7 Day I/O Log: User (2000) G Logout
In addition to the menu structure above, there are also Status and Alarm screens.
TEC-EYE Acronyms
MAT Mixed air temperature RAT Return air temperature OAT Outdoor air temperature OAH Outdoor air humidity Blower Indoor Blower Status Damper Free cooling damper position status C1 Compressor activate status H1 Heater Stage 1 status H2 Heater Stage 2 status ODP Calculated outdoor dew point FC Free cooling status RN Component run time in minutes in last hour ST Number of start requests in last hour
Status Screen
The Status screen is the default start-up screen and also the return screen after 5 minutes of no activity. The screen can be accessed any time by pressing the ESCAPE button repeatedly.
The wall-mount unit address is displayed in the upper right corner on the Status screen (see Figure 2). The Status screen also shows the current date, time, return air temperature, mixed air temperature, outdoor air temperature, outdoor humidity and outdoor dewpoint conditions. Blower, damper and unit status are also
displayed. See Table 2 for MULTI-TEC wall-mount unit status messages.
TABLE 2 Wall-Mount Unit Status Messages
Message
Description
Invalid Model # Orphan Mode th-Tune Online
LC Online Cont. Blower Off by th-Tune Freecooling Optimized Cool
Cooling Heating Active Dehum
Passive Dehum Self Test
Off by Alarm
Off by BMS
Off by LC
Off by Keypad Emergency Vent Emergency Cool Emergency Off
Unit disabled due to faulty model number.
Unit is not currently communicating with an LC6000 or th_Tune device.
Communication with th_Tune device is established; unit in standby (no current calls).
Communication with LC6000 is established; unit in standby (no current calls).
Continuous blower is active.
Unit has been commanded off by the th_Tune.
Economizer is active.
Economizer and mechanical cooling are active.
Mechanical cooling is active.
Electric or mechanical heat is active.
Mechanical dehumidification or electric reheat dehumidification is active.
Humidity is above the passive set point; economizer disabled/blower speed reduced. See Balanced Climate Mode on page 14.
Self test in operation.
All functions/modes of operation are disabled by one the following alarms: Return Air, Emergency Off, Unit Disable or Valid Model #.
Unit has been set to off by BMS system (Modbus); all functions/ modes of operation are disabled.
Unit is commanded off by LC6000; all functions/modes of operation are disabled.
Unit has been turned off in TECEYE menu; all functions/modes of operation are disabled.
Emergency vent mode is active. See LC manual 2100-669.
Emergency cooling mode is active.
Emergency off mode is active. See LC manual 2100-669.
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The Quick Menu is displayed in the bottom right corner of the status screen (see Figure 2 on page 6). Alarm Log, Unit Information and Setpoints are available through the Quick Menu. Pressing the UP or DOWN keys while on the Status screen will change the Quick Menu icon displayed (see Figure 4). Press the ENTER key when the desired icon is displayed.
Alarm Log
FIGURE 4 Quick Menu Icons
Unit Information
Setpoints
FIGURE 6 Last 24 Hour Tracking
Quick Menu Setpoints If at any time the unit(s) loses communication with the LC6000 controller, the unit(s) will go to orphan mode. The setpoints are synced with the LC6000 when communication is established. The unit will save and control to these values until communication is reestablished. To change the cooling and heating setpoints: 1. From the Status screen, press UP or DOWN key
until Quick Menu displays Setpoints icon. Press ENTER key. 2. Press ENTER key to scroll to the selected choice (see Figure 5). 3. Press UP or DOWN key on desired value until value displays correctly. 4. Press ENTER key to submit value and move to next parameter. 5. Press ESCAPE key until Main Menu screen is displayed.
FIGURE 5 Cooling and Heating Setpoints
Information These screens show unit run hours, averages and software version information (see Figures 6, 7 and 8).
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FIGURE 7 Last 24 Hour Tracking
FIGURE 8 Software Version Information
Alarm Log The alarm log screens show a log of each alarm (see Figure 9. There will be a log for when alarm occurred and if the alarm auto clears, it will show when the alarm cleared. See page 12 for instructions on clearing the alarm logs.
FIGURE 9 Alarm Log Screen Breakdown
Alarm Log Number Alarm Date/Time Alarm Index Number
Alarm Description Alarm Event Type (Start/Stop)
Addressing Wall-Mount Units
Each unit must have a unique address for the system to operate correctly with the LC controller (Ex: 1, 2, 3, ...14 depending on the number of units). The wallmount unit address is displayed in the upper right corner on the Status screen on the TEC-EYE display (see Figure 2 on page 6).
To change the unit address:
1. Press MENU key to access the Main Menu screen.
2. Press UP or DOWN keys and ENTER key to enter USER password 2000.
3. Press UP or DOWN keys to scroll to Sys Config; press ENTER key.
4. Press ENTER key to scroll to Unit Address (see Figure 10).
5. Press UP or DOWN keys to change the address to a value between 1 and 14.
NOTE: Each unit must have a unique address for the communication to work properly. Bard also recommends physically labeling each unit for ease in identification.
FIGURE 10 Unit Configuration
TABLE 3 Software Versioning Guide
Product MULTI-TEC FUSION-TEC (WR) MEGA-TEC LC6000
Software Name MTS1000 WTS1000 MGS1000 LCS6000
X The letter X represents a major change to the software effecting product compatibility or function of the equipment.
Y The letter Y represents a minor change to the software that either adds, removes, or alters a feature of the equipment without effecting compatibility with other products.
Z The letter Z represents a change to the software that fixes existing features or user interface.
NOTI CE
It is important to check the software version during installation to ensure that the latest version has been installed. Current software versions and installation instructions are available on the Bard website at http://www. bardhvac.com/software-download/
Setting Unit Zone
To assign zones:
1. Press MENU key to access the Main Menu screen.
2. Press UP or DOWN keys and ENTER key to enter USER password 2000.
3. Press UP or DOWN keys to scroll to Sys Config; press ENTER key.
4. Press ENTER key to scroll to Unit Zone (see Figure 10).
5. Press UP or DOWN keys to change value to desired zone.
Additional Features
Software Versioning Guide
MTS1000.X.Y.Z
Software Name: The name of the software is the base part number used to identify which product the software is used in.
Model/Serial Number Retain
Model numbers and serial numbers will be retained through most software updates. It still remains good practice to verify the software version, model numbers and serial numbers of any wall-mount unit after a software update, as some functionality of the MULTITEC wall-mount unit require a specific model number.
Model Number Verification
The MULTI-TEC software will check the entered model number against available unit sizes/configurations. If there is an issue with model configuration, the unit will display Invalid Model # as the Unit Status and an alarm will turn off the unit to prevent damage to the unit.
Time/Date/Timezone Sync
On MULTI-TEC wall-mount unit models with a software version number MTS1000.2.0.0 and higher, when the wall-mount unit is connected and correctly addressed to a LC6000 supervisory controller, local time, date, and timezone information will be synced from the LC6000. This feature allows for faster set-up and correct correlation between alarm logs.
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Executing a Self Test
Execute a self test on each unit to verify the equipment is functioning correctly.
1. Press MENU key to access the Main Menu screen.
2. Press UP or DOWN keys and ENTER key to enter USER password 2000.
3. Press UP or DOWN keys to scroll to Sys Config; press ENTER key.
4. Press UP or DOWN keys to scroll to Self Test (A11) screen.
5. Press ENTER key to scroll to Self Test Enable parameter (see Figure 11).
6. Press UP or DOWN key to change value to ON. The self test will begin.
FIGURE 11 Executing Self Test
Step Action A Open economizer damper B Close economizer Damper C Turn on compressor D Enable second stage E Open reheat valve F Turn all cooling off G Turn on electric heat H Turn on electric heat stage 2 I Turn off all heating
Time Required Damper Time (150s) Damper Time (150s) Heat/Cool Time (60s) Heat/Cool Time (60s) Heat/Cool Time (60s) -Heat/Cool Time (60s) Heat/Cool Time (60s) --
Parameter Description
Damper Time: This is the time (in seconds) allowed for both the opening sequence and closing sequence.
Heat/Cool Time: This is the time (in seconds) allowed for cooling sequence and heating sequence.
Status: This will display what the unit is doing as the self test progresses. The following messages may appear:
1. Not Active 2. Opening Damper 3. Closing Damper 4. Compressor Stage 1 5. Compressor Stage 2
Manual 2100-712E Page 10 of 38
6. Reheat Valve Open 7. Cooling Off 8. Electric Heat Stage 1 9. Electric Heat Stage 2 10. Heating Off 11. Self Test Stop
The unit will determine which items to test based on the unit model number.
Changing Free Cooling Type
The comparative enthalpy free cooling setting can be changed to dry bulb free cooling using the TEC-EYE hand-held diagnostic tool.
1. Press MENU key to access the Main Menu screen.
2. Press UP or DOWN keys and ENTER key to enter USER password 2000.
3. Press UP or DOWN keys to scroll to Sys Config; press ENTER key.
4. Press UP or DOWN keys to scroll to screen with Free Cooling Config heading.
5. Press ENTER key to scroll to parameter type.
6. Press UP or DOWN keys to change to desired value.
7. Press ENTER key to save.
8. Press ESCAPE key until Main Menu screen is displayed.
Entering Model/Serial Number
To enter or change the model or serial number manually:
1. Press MENU key to access the Main Menu screen.
2. Press UP or DOWN keys and ENTER key to enter USER password 2000.
3. Press UP or DOWN keys to scroll to Adv Sys Config; press ENTER key.
4. Press UP or DOWN keys followed by ENTER key for each character in the serial number (see Figure 12). Once the serial number has been fully entered, the cursor will automatically cycle on to Model Number. Repeat the same process to enter the model number.
FIGURE 12 Entering Model/Serial Number
ALARMS
NOTE: Screenshots shown in this manual reflect default settings (when applicable).
Acknowledging/Clearing Alarms
Alarm conditions activate a red LED indicator that backlights the ALARM function key. As an option, an alarm condition may also be enunciated by an audible alarm signal. An alarm is acknowledged by pressing the ALARM key. This calls up alarm display screen(s) that provide a text message detailing the alarm condition(s)--as shown in Figure 13.
FIGURE 13 Alarm Screen Breakdown
Alarm Page Alarm Date/Time Alarm Index Number Alarm Description
The MULTI-TEC wall-mount unit alarm index can be found on page 38.
Clearing Alarms
After an alarm condition has been corrected, the alarm can be cleared/reset.
To clear alarms, press the ALARM key and the UP or DOWN keys to scroll to the alarm reset screen (see Figure 14). Hold down the ALARM key for 3 seconds until the screen flashes. After the screen flashes, if all alarms are able to be cleared, the screen should read NO ALARMS. If there are still active alarms, the screen will show the first indexed alarm.
FIGURE 14 Clearing Alarms
Clearing Alarm Logs To clear the alarm logs: 1. Press MENU key to go to the Main Menu screen. 2. Press UP or DOWN keys and ENTER key to enter
TECHNICIAN password 1313. 3. Press UP or DOWN keys to scroll to Settings; press
ENTER key. 4. Press UP or DOWN keys to scroll to Initialization;
press ENTER key. 5. Press UP or DOWN keys to scroll to Initialization;
press ENTER key. 6. Press ENTER key to scroll to Delete alarm logs?
(see Figure 15).
7. Press UP or DOWN key to change from NO to YES.
8. Press ENTER key to clear all alarm logs.
FIGURE 15 Clearing Alarm Logs
Alarm Adjustment
Mixed Air Alarm The mixed air alarm is used to indicate proper operation of the economizer. An alarm will be generated when the mixed air temperature is above or below two independent setpoints. This alarm can be adjusted by changing the alarm setpoints and/or delay. The differential low references the economizer control setpoint. For example, if the economizer setpoint is 55°F (as shown in Figure 24 on page 17) and the differential is set to 10, the lower limit for the mixed air alarm would be 45°F. The high differential references the outdoor air temperature setpoint that enables the economizer. For example, if the outdoor air temperature setpoint for economizer enable is set to 65°F and the high alarm is set to 5, the alarm would actuate at 70°F. The alarm also has a delay to help reduce nuisance alarms. With the delay set to 120 seconds, either the high mixed air or low
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mixed air alarm will need to be active for 120 seconds before an alarm will be generated. To adjust these values: 1. Press MENU key to go to the Main Menu screen. 2. Press UP or DOWN keys and ENTER key to enter
USER password 2000. 3. Press UP or DOWN keys to scroll to Sys Config;
press ENTER key. 4. Press UP or DOWN keys to scroll to Alarm Config
(A7); press ENTER key. 5. Press ENTER key to scroll to desired value Diff Lo,
Diff Hi or Del (see Figure 16). 6. Press UP or DOWN keys to adjust value. 7. Press ENTER key to save.
FIGURE 16 Adjusting Mixed Air Alarm Values
Refrigerant Low Pressure When the low pressure switch indicates a low pressure condition and there is an active call for cooling, the controller will generate an alarm (after a delay). The delay used by the low pressure alarm is determined by the outdoor air temperature (OAT on display). If the outdoor air temperature is below 55°F, the delay is 180 seconds (LDel on display). If the outdoor temperature is above 55°F, the delay is 120 seconds (Del on display). The unit will also have an address-based delay that will affect start up time; the default is 5 seconds multiplied by unit address. (The unit address-based delay is only when the unit is in orphan mode operation.) Additionally, if the outdoor temperature sensor is not used, the delay is set to 180 seconds. The controller will try to run the refrigeration system two times before the alarm will lock the compressor out. If 15 minutes (Two Count Del value on display) passes before the second attempt, the number of tries will be reset. To adjust these values: 1. Press MENU key to go to the Main Menu screen. 2. Press UP or DOWN keys and ENTER key to enter
USER password 2000.
3. Press UP or DOWN keys to scroll to Sys Config; press ENTER key.
4. Press UP or DOWN keys to scroll to Alarm Config (A7); press ENTER key.
5. Press ENTER key to scroll to desired value OAT, Diff, Del, LDel or Two Count Del (see Figure 16).
6. Press UP or DOWN keys to adjust value.
7. Press ENTER key to save.
Refrigerant High Pressure
When the wall-mount unit receives a signal from the compressor control module (CCM) indicating a high pressure event, the wall-mount unit will generate an alarm. Upon receiving the alarm, the wall-mount unit will remove the "Y" call from the CCM, resetting the status of the CCM. The alarm will stay present on the wall-mount unit until manually cleared. This operation has no configurable parameters.
Economizer Damper
When the controller commands the economizer damper actuator to a position other than 0% and the damper switch indicates the damper is not open, after a delay of 120 seconds (Open Del on display) the controller will generate a damper failed to open alarm. When the controller commands the economizer damper actuator to the 0% position and the damper switch indicates the damper is not closed, after a delay of 300 seconds (Close Del on display) the controller will generate a damper failed to close alarm.
To adjust these values:
1. Press MENU key to go to the Main Menu screen.
2. Press UP or DOWN keys and ENTER key to enter USER password 2000.
3. Press UP or DOWN keys to scroll to Sys Config; press ENTER key.
4. Press UP or DOWN keys to scroll to Alarm Config (A8); press ENTER key.
5. Press ENTER key to scroll to desired value Open Del or Close Del (see Figure 17).
FIGURE 17 Adjusting Damper Alarm Values
Manual 2100-712E Page 12 of 38
6. Press UP or DOWN keys to adjust value.
7. Press ENTER key to save.
Freezestat
When the coil temperature is below 30°F, the unit will generate a Freeze alarm on the TEC-EYE and a Freeze Temp alarm on the LC6000. This will operate the blower and turn off the compressor.
The alarm will be automatically reset when the coil temperature rises above 55°F or after a 5-minute delay while the temperature is above 30°F.
To adjust freezestat values:
1. Press MENU key to go to the Main Menu screen.
2. Press UP or DOWN keys and ENTER key to enter USER password 2000.
3. Press UP or DOWN keys to scroll to Sys Config; press ENTER key.
4. Press UP or DOWN keys to scroll to Alarm Config (A9); press ENTER key.
5. Press ENTER key to scroll to desired value Low Temp, Delay, Reset Temp or Reset Del (see Figure 18).
6. Press UP or DOWN keys to adjust value.
7. Press ENTER key to save.
FIGURE 18 Adjusting Freeze Alarm Values
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CONTROL OPERATION
NOTE: Screenshots shown in this manual reflect default settings (when applicable).
On/Off Control
The wall-mount unit can be turned on and off with the TEC-EYE. When the unit is set to ON, the system will heat and cool the space either in orphan mode or when connected to the LC. When the unit is set to OFF, the unit will not heat or cool the space.
To turn the unit on or off:
1. Press MENU key to go to the Main Menu screen.
2. Press UP or DOWN keys and ENTER key to enter USER password 2000.
3. Press UP or DOWN keys to scroll to ON/OFF; press ENTER key.
4. Press UP or DOWN key to change the system from OFF to ON or from ON to OFF.
5. Press ESCAPE key until Main Menu screen is displayed.
Blower Control
The blower will be in continuous operation in orphan mode. To operate the blower continuously while communicating with the LC6000 or PGD stand-alone display, refer to the latest version of the 2100-669 LC6000 Service Instructions manual or 2100-734 PGD manual.
The 11EER MULTI-TEC wall-mount unit is equipped with an ECM 5-speed blower. Three different speeds are used: Low for Balanced Climate, nominal for normal blower operation and high for high sensible (see Figure 19).
FIGURE 19 Blower Speeds
Blower Speed 2 Nominal (N08)
This blower speed is available when the unit is in cooling, heating, orphan mode, freeze condition, free cool or continuous blower.
Blower Speed 3 High Sensible (N09)
This blower speed is available when the unit is in high sensible mode, which is selectable from the LC6000 controller, and cooling mode is active.
The Balanced Climate (blower speed 1) and high sensible (blower speed 3) are only available when connected to the LC6000 controller.
IMPORTANT: If the unit model number does not have the letter B as the fifth character (Ex. W36ABP...), the blower will not run in orphan mode.
Balanced Climate Mode
MULTI-TEC Series wall-mount units offer an enhanced latent capacity that can be controlled by an LC6000 controller. When passive dehumidification (Balanced Climate mode) is active on the LC6000 controller, the unit will increase the amount of moisture removed during compressor operation. When high sensible mode is enabled on the LC6000 controller, this mode increases the sensible cooling capacity to increase the amount of heat removed from the structure during compressor operation.
Balanced Climate Enable/Disable
When the MULTI-TEC is connected to an LC6000 controller, Balanced Climate mode can be enabled or disabled. Balanced Climate mode is disabled by default.
To enable or disable Balanced Climate mode:
1. Press MENU key to access the Main Menu Screen.
2. Press UP or DOWN keys and ENTER key to enter USER password 2000.
3. Press UP or DOWN keys to scroll to Adv Sys Config; press ENTER key.
4. Press UP or DOWN keys to scroll to Blower Settings (B5)
5. Press UP or DOWN keys to scroll to Balanced Climate (see Figure 20).
6. Press UP or DOWN keys to adjust value.
7. Press ENTER key to save.
Blower Speed 1 Balanced Climate (NO7)
This blower speed is available when the unit is in passive dehumidification and there is a cooling or heating call.
Manual 2100-712E Page 14 of 38
FIGURE 20 Balanced Climate Enable/Disable
Temperature Control
When the unit is connected to the LC controller, it will receive all of its heating, cooling and ventilation commands from the controller. When the unit is in orphan mode, it will heat, cool and ventilate based on the return air temperature measurement. The return air temperature will be compared to the cooling setpoint. Based on differentials above and below the setpoint, the available cooling and heating stages will be utilized. Cooling Sequence Economizer Available (see Figure 21) If the return air temperature is higher than 79°F (Setpoint + Stage 1 Diff On) and outdoor conditions are acceptable for economizing, the unit will enable the economizer. If the return air temperature is higher than
80°F (Setpoint + Stage 2 Diff On), the unit will enable mechanical cooling stage 1. If the control value is higher than 81°F (Setpoint + Stage 3 Diff On), the unit will enable mechanical cooling stage 2.
Cooling Sequence Economizer Not Available (see Figure 21)
If the return air temperature is higher than 79°F (Setpoint + Stage 1 Diff On), the unit will enable stage 1 mechanical cooling. If the return air temperature is higher than 80°F (Setpoint + Stage 2 Diff On), the unit will enable stage 2 mechanical cooling.
To adjust these parameters:
1. Press MENU key to go to the Main Menu screen.
2. Press UP or DOWN keys and ENTER key to enter USER password 2000.
3. Press UP or DOWN keys to scroll to Sys Config; press ENTER key.
4. Press UP or DOWN keys to scroll to Cooling Setup (A2); press ENTER key.
5. Press ENTER key to scroll to Stage 1 Diff On, Stage 1 Diff Off, Stage 2 Diff On, Stage 2 Diff Off, Stage 3 Diff On or Stage 3 Diff Off (see Figure 22 on page 16).
6. Press UP or DOWN keys to adjust value.
7. Press ENTER key to save.
FIGURE 21 MULTI-TEC Wall-Mount Unit Cooling Staging
Stage 1
Stage 1 Diff Off
Stage 1 Diff On
Stage 2
Stage 2 Diff Off
Stage 2 Diff On
Stage 3
Stage 3 Diff On Stage 3 Diff Off
Setpoint
72
73
74
75
76
77
78
79
80
81
82
83
Off
Band
On
NOTE: Stages available are based on unit configuration. Example: If the unit has a single stage compressor with a blank-off plate (no economizer), there will be only one stage available for cooling. If there is a two stage compressor with an economizer, it will operate all three stages when free cooling is available, or two stages when free cooling is not available.
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FIGURE 22 Adjusting Cooling Differential Values
6. Press UP or DOWN keys to adjust value. 7. Press ENTER key to save.
FIGURE 23 Adjusting Heating Differential Values
Heating Sequence (see Figure 24)
If the return air temperature is below 58°F (Setpoint + Stage 1 Diff On), the unit will enable electric heat stage 1. If the return air temperature is below 57°F (Setpoint + Stage 2 Diff On), the unit will enable electric heat stage 2. If the control value is below 56°F (Setpoint + Stage 3 Diff On), the unit will enable electric heat stage 3.
To adjust these parameters:
1. Press MENU key to go to the Main Menu screen.
2. Press UP or DOWN keys and ENTER key to enter USER password 2000.
3. Press UP or DOWN keys to scroll to Sys Config; press ENTER key.
4. Press UP or DOWN keys to scroll to Heating Setup (A3); press ENTER key.
5. Press ENTER key to scroll to Stage 1 Diff On, Stage 1 Diff Off, Stage 2 Diff On, Stage 2 Diff Off, Stage 3 Diff On or Stage 3 Diff Off (see Figure 23).
Free Cooling
If the unit is equipped with an economizer, and conditions are acceptable for economizer operation, the MULTI-TEC wall-mount unit will utilize free cooling operation before the use of any cooling operation requiring compressor operation to reduce the energy required to cool the indoor space.
Economizer Disable
There are two methods to disable the economizer if the use of free cooling is restricted. The first method is to select None as the economizer type within the Sys. Config. menu. The second method requires changing the model number within the Adv. Sys. Config. menu to reflect a model installed with a blank-off plate (see model nomenclature in Figure 1 on page 3). Changing the wall-mount unit model number to reflect a unit with a blank-off plate will not allow for an economizer type
FIGURE 24 MULTI-TEC Wall-Mount Unit Heating Staging
Stage 1
Stage 1 Diff On
Stage 1 Diff Off
Stage 2
Stage 2 Diff On
Stage 2 Diff Off
Stage 3
Stage 3 Diff On Stage 3 Diff Off
Setpoint
55
56
57
58
59
60
61
62
63
64
65
On
Band
Off
NOTE: Stages available are based on unit configuration. Example: If only a single stage of heat is present, only a single stage of heat will be considered for heating operation.
Manual 2100-712E Page 16 of 38
to be selected therefore defaulting to a disabled state, along with all sensors/alarms associated with it. Economizer Enable The economizer will be enabled for cooling operation if the model number reflects a wall-mount unit with an economizer installed, an economizer type other than None and the conditions for the economizer type are met. The following list explains the economizer types and the parameters required for operation. See also Figures 25 and 26.
FIGURE 25 Economizer A4 Screen
FIGURE 26 Economizer A5 Screen
None Economizer will not be enabled for free cooling operation. Drybulb Only 1. Outdoor air temperature is below the Outdoor Set
outdoor temperature setpoint listed within the Sys. Config. menu. (Outdoor Set temperature setpoint is 70°F by default.) 2. LC6000 is not currently in any dehumidification mode. 3. LC6000 is not currently in any emergency mode. Temperature and Humidity (Default) 1. Outdoor air temperature is below the Outdoor Set outdoor temperature setpoint listed within the Sys. Config. menu. (Outdoor Set temperature setpoint is 70°F by default.)
2. Outdoor relative humidity is below the OA Humid Set outdoor humidity setpoint listed within the Sys. Config. menu. (OA Humid Set humidity setpoint is 80% RH by default.)
3. LC6000 is not currently in any dehumidification mode.
4. LC6000 is not currently in any emergency mode.
Enthalpy
1. Outdoor air temperature is below the Outdoor Set, outdoor temperature setpoint, listed within the Sys. Config. menu. (Outdoor Set temperature setpoint is 70°F by default.)
2. Outdoor relative humidity is below the OA Humid Set outdoor humidity setpoint listed within the Sys. Config. menu. (OA Humid Set humidity setpoint is 80% RH by default.)
3. The outdoor air dewpoint is below the OA Dew Pt Set outdoor dewpoint setpoint, listed within the Sys. Config. menu. (OA Dew Pt Set dewpoint setpoint is 55°F by default.).
4. LC6000 is not currently in any dehumidification mode.
5. LC6000 is not currently in any emergency mode.
Economizer Modulation
The economizer damper output will modulate between 0% and 100% to maintain a 55°F mixed air temperature when the outdoor air conditions are acceptable.
To adjust damper modulation values:
1. Press MENU key to go to the Main Menu screen.
2. Press UP or DOWN keys and ENTER key to enter USER password 2000.
3. Press UP or DOWN keys to scroll to Sys Config; press ENTER key.
4. Press UP or DOWN keys to scroll to Unit Config (A6); press ENTER key.
5. Press ENTER key to scroll to Mixed FC Set, Gain, Integral, Derivative or Min Position (see Figure 27).
FIGURE 27 Adjusting Damper Modulation Values
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6. Press UP or DOWN keys to adjust parameter value.
7. Press ENTER key to save.
Economizer Note
The economizer and mechanical cooling can operate simultaneously because the economizer uses the mixed air temperature sensor.
Emergency Cooling
When return air temperature rises above 95°F, the unit will enter emergency cooling mode and an alarm will be displayed (unit can also be commanded by LC6000 to enter emergency cooling mode). In emergency cooling mode, if the unit is equipped with an economizer (and the model does not indicate a blank off plate), the economizer operation will ignore current setpoints. If the return air temperature is above the outdoor air temperature, the economizer will open and the unit will enter optimized cooling. If at any point the return air temperature falls below the outdoor air temperature or the mixed air temperature falls below 65°F, the economizer will close. This is done in an effort to cool the space as quickly and efficiently as possible. This feature will be disabled by a model number indicating a blank off plate (model # position 10 set to `B') which disables all economizer function.
Unit Disable
The wall-mount unit can be disabled by opening a dry set of contacts connected to Input DI1 on the PLC board. This feature can be used in addition to the emergency off feature provided by the LC6000 to ensure that the unit does not operate even when in orphan mode. This feature is disabled by default and must be enabled before the input will affect unit operation. When the input detects open contacts, all unit operation will stop and the dampers will close. This is an automatic reset feature that will resume operation as soon as the unit detects the contacts are closed again.
For applications that require the dampers to close rapidly, an additional relay should be installed that either breaks the 24VAC power supply to each actuator or breaks the low voltage power supply to all units. In normal operation, the dampers can take up to 2 minutes to close from fully open. When the 24VAC power is removed from the actuator, the dampers will close in under 30 seconds using the spring return on the actuator.
NOTE: Alarm logging and trend logging will not be available if power is removed from the controller and unit offline alarms will be recorded on the LC6000.
To make adjustments to the unit disable option: 1. Press MENU key to go to the Main Menu screen. 2. Press UP or DOWN keys and ENTER key to enter
USER password 2000. 3. Press UP or DOWN keys to scroll to IO Config;
press ENTER key. 4. Press UP or DOWN keys to scroll to Digital In
Config C1; press ENTER key. 5. Press ENTER key to scroll to the variable in the
table that intersects Disable and Dir (see Figure 28). 6. Press UP or DOWN keys to change the direction value from NO to NC or NC to NO. 7. Press ENTER key to scroll to the variable in the table that intersects Disable and En. 8. Press UP or DOWN keys to change the enable value from On to Off or Off to On; press ENTER key. 9. Press ESCAPE key several times to return to the main menu.
FIGURE 28 Making Adjustments to Unit Disable
Compressor
Enable The compressor will be enabled when stage 1 is enabled and outdoor air conditions are not acceptable for economizing. If the outdoor conditions are acceptable, the compressor will run when stage 2 is enabled. Delays and Run Time The compressor will have a minimum run time of 180 seconds and a minimum off time of 120 seconds. If the compressor is two stage, the second stage will have a minimum delay of 120 seconds. The 2nd stage will also have a minimum on time of 120 seconds. When communicating with the LC, the delay between compressors in units installed on the same shelter will be managed by the settings configured in the LC.
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Dehumidification
Dehumidification Modes
Dehumidification Off
When the humidity level inside a zone falls to the Dehumidification Off setpoint, the system will stop attempting to dehumidify the space. The default setpoint value for this mode is 60% RH.
Passive Dehumidification
When the humidity level rises to the Passive Dehumidification setpoint, the controller will activate staged dehumidification at the available wall units. As the humidity level rises to the passive dehumidification setpoint, the free cooling function (economizer) is disabled. When there is a call for cooling, the compressor will energize and the blower speed will be reduced to the unit dehumidification mode or Balanced Climate speed whichever is applicable to the unit. All units allowed to run within the zone will be given the dehumidification command and will operate as such on a call for cooling. The default setpoint value for passive dehumidification is 70% RH.
Active Dehumidification
When the humidity level rises to the Active Dehumidification setpoint, the supervisory controller will active staged dehumidification at the available wall units. The supervisory controller will then calculate the dehumidification demand based on how far above the setpoint and how long the RH level has been above the setpoint. The controller will then utilize all of the units with active dehumidification capabilities to reduce the indoor humidity level. The units will be staged on based on the existing cooling rotation for the units in the zone up to the maximum number of units allowed to run. When in demand minimum compressor run time is applicable, examples of demand are as follows:
With two units with dehumidification capabilities, Unit 1 in rotation will come on at 50% demand and Unit 2 in rotation will come on at 100% demand. They will rotate off in a reverse; Unit 2 will be off at 50% demand and Unit 1 will be off at the dehumidification off setpoint.
With three units with dehumidification capabilities, Unit 1 in rotation will come on at 33% demand, Unit 2 in rotation will come on at 67% demand and Unit 3 in rotation will come on at 100% demand. They will rotate off in reverse; Unit 3 will be off at 67% demand, Unit 2 will be off at 33% demand and Unit 1 will be off at dehumidification off setpoint.
An active dehumidification sequence will run until the space temperature falls to the heating setpoint or increases to the cooling setpoint, or the dehumidification off setpoint is reached. Refer to the specific unit manual for active dehumidification sequence and space temperature control.
The passive dehumidification setpoint must be lower than the active dehumidification setpoint to ensure the economizer is disabled during active dehumidification.
Availability for active dehumidification will be determined by model number. Units with electric reheat, mechanical dehumidification or cycling reheat will be considered. The active dehumidification default setpoint is 80% RH.
Electric Reheat Dehumidification
Electric reheat dehumidification is only available as a factory-installed option that must be ordered with the unit. It cannot be installed in the field on an existing unit.
Dehumidification will only become active if the unit is connected to the LC6000 and the appropriate conditions are present.
Electric Reheat Dehumidification Operation
When the wall-mount unit receives a dehumidification call from the LC6000, the wall-mount unit will disable the economizer to force the system to use air conditioning and prevent any additional humidity from being introduced from outdoor air. The wall-mount unit will then turn on the air conditioning system which will remove moisture and cool the space. At the same time, the electric reheat coil will be energized to extend the run time of the cooling cycle and prevent cool air from being introduced to the space.
On a call for electric reheat dehumidification, the unit return air sensor will control the compressor and heating element operation based on the supervisory control setpoints. If the space temperature, based on the sensor attached to the supervisory control, reaches the cooling or heating setpoint, the dehumidification call is overridden until the cooling or heating call is satisfied. If communication is lost with the supervisory controller during a dehumidification call, the electric reheat function at the unit is lost and the unit will operate in orphan mode.
During a call for electric reheat, the wall unit will energize the compressor and the electric reheat coil will be energized to extend the run time of the cooling cycle, mitigating the cooling done by the compressor. If/when the temperature falls to 2° above heating setpoint, the compressor will be disabled until the temperature is increased 2° below the cooling setpoint and then the compressor will be re-energized (see Figure 29 on page 20). If/when the temperature reaches 4° below the cooling setpoint, the electric heating elements will be energized. The electric heating elements will be disabled 2° below the cooling setpoint. The system will continue the dehumidification process until either the heating or cooling setpoint are reached again or the requirement for dehumidification is no longer present.
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A call for electric dehumidification is ignored if there is a call for emergency vent, emergency cool or emergency off. For a more detailed operation description, see the 2100669 LC6000 Service Instructions manual.
FIGURE 29 Dehumidification Control (°F)
Cool
Reheat 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79
FIGURE 30 Wall-Mount Unit Control Board
24VAC GND 24VAC Hot
+ Communication Wire - Communication Wire
Dirty Filter Switch High Pressure (CCM) Low Pressure Switch
Damper Blade Switch Digital Ground
Mixed Air Temp Sensor Outdoor Air Temp Sensor
Return Air Temp Sensor Outdoor Humidity Sensor
Freeze Sensor Analog Ground 24 VDC To Outdoor Air Sensor Suction Temp Sensor Suction Pressure Transducer
Ground 2-10 VDC To Damper Actuator
24VAC + Y TO Compressor CCM
24VAC + Stage 1 Heat Stage 1 Heat Blower 1 (balanced climate) 24VAC + Blower 2 (nominal) Blower 3 (high sensible)
Electronic Expansion Valve (EEV)
MIS-3869 B
See Table 4 for information on control board terminal functions.
Manual 2100-712E Page 20 of 38
Terminal
Rx+/Tx+ Rx-/Tx-
DI1 DI2 DI3 DI4 DI5 DI6 DI7 GND B1 B2 B3 B4 B5 B6 B7 GND +VDC B8 B9 Y1 Y2 Y3 GND C1 NO1 NO2 NO3 C4 NO4 NO5 NO6 NO7 C7 NC7 C8 NO8 NO9 GO G
TABLE 4 MULTI-TEC Wall-Mount Unit Control Board Terminals
Function
Unit Disable Dirty Filter Switch High Pressure (CCM) Low Pressure Switch
Not Used Damper Blade Switch
Not Used Digital Ground Mixed Air Temperature Sensor Outdoor Air Temperature Sensor Return Air Temperature Sensor
Not Used Outdoor Humidity Sensor
Not Used Freeze Temperature Sensor
Analog Ground 24VDC to Outdoor Air Sensor Suction Temperature Sensor
Suction Pressure Sensor Not Used
2-10VDC to Damper Actuator Not Used Ground 24VAC+ Cool 1 Out Not Used
Reheat Valve 24VAC+
Stage 1 Heating Stage 2 Heating
Not Used Blower 1 24VAC+ Not Used Not Used Blower 2 Blower 3 24VAC Ground 24VAC Hot
Type Communication Communication
Digital Digital Digital Digital Digital
Analog Input Analog Input Analog Input Analog Input Analog Input
Analog Input Analog Input
Power Relay Output
Power Relay Output Relay Output Relay Output
Relay Output Relay Output
Form
N/C N/C N/C N/C N/C
10K Ohm Curve J 10K Ohm Type
10K Ohm Curve J
10K Ohm Curve J
10K Ohm Curve J
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GENERAL REFRIGERANT INFORMATION
These units require R-410A refrigerant and polyol ester oil.
General
1. Use separate service equipment to avoid cross contamination of oil and refrigerants.
2. Use recovery equipment rated for R-410A refrigerant.
3. Use manifold gauges rated for R-410A (800 psi/250 psi low).
4. R-410A is a binary blend of HFC-32 and HFC125.
5. R-410A is nearly azeotropic--similar to R-22 and R-12. Although nearly azeotropic, charge with liquid refrigerant.
6. R-410A operates at 40-70% higher pressure than R-22, and systems designed for R-22 cannot withstand this higher pressure.
7. R-410A has an ozone depletion potential of zero, but must be reclaimed due to its global warming potential.
8. R-410A compressors use polyol ester oil.
9. Polyol ester oil is hygroscopic; it will rapidly absorb moisture and strongly hold this moisture in the oil.
10. A liquid line dryer must be used--even a deep vacuum will not separate moisture from the oil.
11. Limit atmospheric exposure to 15 minutes.
12. If compressor removal is necessary, always plug compressor immediately after removal. Purge with small amount of nitrogen when inserting plugs.
Topping Off System Charge
If a leak has occurred in the system, Bard Manufacturing recommends reclaiming, evacuating (see criteria above) and charging to the nameplate charge. If done correctly, topping off the system charge can be done without problems.
With R-410A, there are no significant changes in the refrigerant composition during multiple leaks and recharges. R-410A refrigerant is close to being an azeotropic blend (it behaves like a pure compound or single component refrigerant). The remaining refrigerant charge in the system may be used after leaks have occurred. "Top-off" the charge by utilizing the pressure charts on the inner control panel cover as a guideline.
Manual 2100-712E Page 22 of 38
REMEMBER: When adding R-410A refrigerant, it must come out of the charging cylinder/tank as a liquid to avoid any fractionation and to insure optimal system performance. Refer to instructions for the cylinder that is being utilized for proper method of liquid extraction.
Safety Practices
1. Never mix R-410A with other refrigerants.
2. Use gloves and safety glasses. Polyol ester oils can be irritating to the skin, and liquid refrigerant will freeze the skin.
3. Never use air and R-410A to leak check; the mixture may become flammable.
4. Do not inhale R-410A--the vapor attacks the nervous system, creating dizziness, loss of coordination and slurred speech. Cardiac irregularities, unconsciousness and ultimately death can result from breathing this concentration.
5. Do not burn R-410A. This decomposition produces hazardous vapors. Evacuate the area if exposed.
6. Use only cylinders rated DOT4BA/4BW 400.
7. Never fill cylinders over 80% of total capacity.
8. Store cylinders in a cool area, out of direct sunlight.
9. Never heat cylinders above 125°F.
10. Never trap liquid R-410A in manifold sets, gauge lines or cylinders. R-410A expands significantly at warmer temperatures. Once a cylinder or line is full of liquid, any further rise in temperature will cause it to burst.
Important Installer Note
For improved start up performance, wash the indoor coil with a dishwashing detergent.
R410-A Refrigerant Charge
This unit was charged at the factory with the quantity of refrigerant listed on the serial plate. AHRI capacity and efficiency ratings were determined by testing with this refrigerant charge quantity.
Table 5 shows nominal pressures for the units. Since many installation specific situations can affect the pressure readings, this information should only be used by certified technicians as a guide for evaluating proper system performance. They shall not be used to adjust charge. If charge is in doubt, reclaim, evacuate and recharge the unit to the serial plate charge.
Model W18A/L W24A/L W30A/L W36A/L
Return Air Temp (DB/WB) 75/62 80/67 85/72 75/62 80/67 85/72 75/62 80/67 85/72 75/62 80/67 85/72
TABLE 5 MULTI-TEC Cooling Pressures
Air Temperature Entering Outdoor Coil °F
Pressure
Low Side High Side
Low Side High Side
Low Side High Side
Low Side High Side
Low Side High Side
Low Side High Side
Low Side High Side
Low Side High Side
Low Side High Side
Low Side High Side
Low Side High Side
Low Side High Side
75 80 85 90 95 100 105 110 115 120 125
121 123 126 128 131 134 136 137 140 142 144 293 312 332 353 376 400 425 452 480 510 540
129 132 135 137 140 143 145 147 150 152 154 300 320 340 362 386 410 436 464 492 523 554
134 137 140 142 145 148 150 152 155 157 159 311 331 352 375 400 424 451 480 509 541 573
123 124 126 128 129 131 133 135 137 139 141 314 334 355 377 401 425 451 479 507 536 567
132 133 135 137 138 140 142 144 146 149 151 322 343 364 387 411 436 463 491 520 550 582
137 138 140 142 143 145 147 149 151 154 156 333 355 377 401 425 451 479 508 538 569 602
118 120 122 124 126 128 131 133 135 137 138 312 333 355 378 403 428 454 483 511 540 570
126 128 131 133 135 137 140 142 144 146 148 320 342 364 388 413 439 466 495 524 554 585
130 132 136 138 140 142 145 147 149 151 153 331 354 377 402 427 454 482 512 542 573 605
117 120 122 124 127 129 131 134 136 137 138 323 346 370 394 419 446 473 500 528 558 587
125 128 130 133 136 138 140 143 145 147 148 331 355 379 404 430 457 485 513 542 572 602
129 132 135 138 141 143 145 148 150 152 153 343 367 392 418 445 473 502 531 561 592 623
Low side pressure ± 4 PSIG High side pressure ± 10 PSIG
Tables are based upon rated CFM (airflow) across the evaporator coil. If there is any doubt as to correct operating charge being in the system, the charge should be removed and system evacuated and recharged to serial plate charge weight.
NOTE: Pressure table based on high speed condenser fan operation. If condensing pressures appear elevated check condenser fan wiring. See Condenser Fan Operation on page 24.
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COMPONENTRY
! WARNI NG
Electrical shock hazard.
Disconnect VAC power supply before servicing. Failure to do so could result in electric shock or death.
High Pressure Switch
All W**A/W**L wall-mount air conditioner series models are supplied with a high pressure switch. The high pressure switch opens at 650 psi.
Three Phase Scroll Compressor Start Up Information
Scroll compressors, like several other types of compressors, will only compress in one rotational direction. Direction of rotation is not an issue with single phase compressors since they will always start and run in the proper direction.
However, three phase compressors will rotate in either direction depending upon phasing of the power. Since there is a 50-50 chance of connecting power in such a way as to cause rotation in the reverse direction, verification of proper rotation must be made. Verification of proper rotation direction is made by observing that suction pressure drops and discharge pressure rises when the compressor is energized. Reverse rotation also results in an elevated sound level over that with correct rotation, as well as substantially reduced current draw compared to tabulated values.
Verification of proper rotation must be made at the time the equipment is put into service. If improper rotation is corrected at this time, there will be no negative impact on the durability of the compressor. However, reverse operation for over 1 hour may have a negative impact on the bearing due to oil pump out.
NOTE: If compressor is allowed to run in reverse rotation for an extended period of time, the compressor's internal protector will trip.
All three phase compressors are wired identically internally. As a result, once the correct phasing is determined for a specific system or installation, connecting properly phased power leads to the same Fusite terminal should maintain proper rotation direction.
The direction of rotation of the compressor may be changed by reversing any two line connections to the unit.
Phase Monitor
Used only on 3-phase equipment, the phase monitor is a compressor protection device that will prohibit operation of the compressor if the device senses a possible reverse-rotation situation due to incorrect phasing. On a call for compressor (and only compressor), the device will check incoming phase, check for severe voltage imbalance and check for proper frequency. Under nominal conditions, a green LED light will show on the face of the monitor. If there is improper phasing, voltage imbalance or frequency deviation, the device will show a red LED light and prohibit compressor operation.
If a fault condition occurs, reverse two of the supply leads to the unit. Do not reverse any of the unit factory wires as damage may occur.
Condenser Fan Operation
NOTE:
On models equipped with a low ambient control (LAC), the condenser fan motor will have a delayed start until system refrigerant operating pressure builds up. After starting, the fan motor may or may not cycle depending upon ambient conditions. This is normal operation.
The condenser fan motor on 230/208 volt, one and three phase, 60 HZ units is a two-speed motor that comes factory wired on high speed for peak performance.
Low Ambient Control
Modulating head-pressure control that allows full speed at pressures above 315 psi. Below 315 psi, the control will slow fan speed--following internal head pressures--until a minimum RPM is reached (approx 300 RPM). Below this point, the control will shut the fan completely off until internal pressures rise. The control is preset from the factory, but should adjustment become necessary, there is an adjustment screw located on the bottom of the control behind a weatherproof cap. One full turn clockwise equals approximately +48 psi.
Compressor Control Module
The compressor control module (CCM) is standard on all models covered by this manual.
Delay-on-Make Timer
A delay-on-make timer is included to be able to delay startup of the compressor. This is desired when more than one unit is on a structure so that all of the units do not start at the same time which could happen after a power loss or building shutdown. The delay-on-make time period is 2 minutes plus 10% of the delay-onbreak time period. To ensure that all of the units do not
Manual 2100-712E Page 24 of 38
start at the same time, adjust the delay-on-break timer on each unit to a slightly different delay time.
Short Cycle Protection/Delay-on-Break
An anti-short cycle timer is included to prevent short cycling the compressor. This is adjustable from 30 seconds to 5 minutes via the adjustment knob (see Figure 31). Once a compressor call is lost, the time period must expire before a new call will be initiated.
10% of this time is also considered on the delay-onmake timer (see Delay-on-Make Timer).
High Pressure Detection
High pressure switch monitoring allows for a lockout condition in a situation where the switch is open. If the high pressure switch opens, the CCM will de-energize the compressor. If the switch closes, it will then restart the compressor after the delay-on-break setting has expired on the device. If the switch trips again during the same thermostat call, the compressor will be deenergized and the alarm terminal will be energized indicating an alarm. The red LED will light and stay on until power is cycled to the control or a loss of voltage is present at Y terminal for more than ½ second.
Test Mode
By rapidly rotating the potentiometer (POT) clockwise (see Figure 31), all timing functions will be removed for testing.
The conditions needed for the unit to enter test mode are as follows: POT must start at a time less than or equal to the 40 second mark. The POT must then be rapidly rotated to a position greater than or equal to the 280 second mark in less than ¼ second. Normal operation will resume after power is reset or after the unit has been in test mode for at least 5 minutes.
Brownout Protection with Adjustment
Brownout protection may be necessary if the utility power or generator power has inadequate power to prevent the voltage from dropping when the compressor starts. This is rare but can happen if the generator is undersized at the site or if the site is in a remote location far from the main power grid. Under normal circumstances, allowing the brownout to be ignored for a time period should not be needed. The 8201-169 is shipped with all the DIP switches in the 'off' or 'do not ignore' position (see Figure 31).
FIGURE 31 8201-169 Compressor Control Module
High Pressure Switch
Compressor Contactor Output
18-30 VAC Input
Alarm Output
Y Input from Thermostat and High Pressure Switch
Common
Troubleshooting Light
Delay-on-Break Time Adjustment Potentiometer
Jumper
Brownout Ignore Time DIP Switches*
* Turn on only one switch for that specific ignore time setting. 10 seconds is the maximum brownout ignore time. If all switches are "off", the control is in "do not ignore".
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If ignoring the brownout is needed because of the above conditions, three preset timers can be set by DIP switches in order to delay signaling a power brownout for a specific length of time after compressor contactor is energized. This allows the compressor a time period to start even if the voltage has dropped and allows the voltage to recover. This delay only happens when the CC terminal energizes. The delay can be set to 1 second (A DIP switch), 5 seconds (B DIP switch) or 10 seconds (C DIP switch); time is not cumulative--only the longest setting will apply. If the voltage recovers during the brownout delay period, the compressor will start.
If a brownout condition is detected by the 8201-169, the troubleshooting light will flash blue. The light will continue to flash until the cooling call is satisfied or power is removed from the Y terminal. This condition does not prevent operation, it only indicates that a brownout condition was present at some point during the cooling call. If a brownout condition is detected, CC will be de-energized and will retry after the delay-onmake timer is satisfied; this process will continue until call is satisfied.
If user chooses the 'do not ignore' position (all three DIP switches "off") when the site has inadequate utility or generator power, this could lead to the compressor never starting. The control will see the brownout immediately and not start.
A common scenario and one that has been seen in the field is when a unit or units switches from utility power to generator power. With slower transfer switches, the time delay between the utility power and generator power didn't cause a problem. The units lost power, shut off and came back on line normally. With the introduction of almost instantaneous transfer switches, the millisecond long power glitch can be enough that the compressor will start to run backwards. In this scenario, the CCM will catch this and restart the units normally.
Pressure Service Ports
High and low pressure service ports are installed on all units so that the system operating pressures can be observed. A pressure table covering all models can be found on page 23. It is imperative to match the correct pressure table to the unit by model number.
This unit employs high-flow Coremax valves instead of the typical Schrader type valves.
WARNING! Do NOT use a Schrader valve core removal tool with these valves. Use of such a tool could result in eye injuries or refrigerant burns!
To change a Coremax valve without first removing the refrigerant, a special tool is required which can be obtained at www.fastestinc.com/en/SCCA07H. See the replacement parts manual for replacement core part numbers.
Outdoor Fan Motor
Due to design considerations of the condenser section of the wall-mount unit, placement/clearance of the motor/fan blade is critical to heat dispersal. Should a change of motor or fan blade be necessary, please view Figure 32 for proper clearance adjustment.
FIGURE 32 Fan Blade Setting
A IRFLO W
M IS-1 7 2 4
Model
W18A/W18L W24A/W24L W30A/W30L W36A/W36L
"A "
Dimension A 1.00" 1.25"
Manual 2100-712E Page 26 of 38
W18ABPA W24ABPA W24ABPB W24ABPC W30ABPA W30ABPB W30ABPC W36AB*A W36AB*B W36AB*C
Heater Kits
TABLE 6A MULTI-TEC W18-36AB* Optional Accessories
EHW2TA-A05 EHW2TA-A08 EHW2TA-A10 EHWA24-A04B EHW2TA-B06 EHWH24B-C06 EHW3TA-A05 EHW3TA-A08 EHW3TA-A10 EHW3TA-A15 EHW30A-B06 EHW3TA-B06 EHW3TA-B09 EHW3TA-B15 EHW3TA-C06 EHW3TA-C09 EHW3TA-C12 EHW3TA-C15 WMCB-01B WMCB-02A WMCB-02B WMCB-03A WMCB-04B WMCB-05A WMPD-01C
XX
XX
XX
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
Circuit Breaker (WMCB) and Toggle Disconnect
(WMPD)
Manual 2100-712E
Page
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W18LBPA W24LBPA W24LBPB W30LBPA W30LBPB W30LBPC W36LB*A W36LB*B W36LB*SC
Heater Kits
TABLE 6B MULTI-TEC W18-36LB* Optional Accessories
EHW2TA-A05L EHW2TA-A08L EHW2TA-A10L EHW2TA-B06L EHW3TA-A05L EHW3TA-A08L EHW3TA-A10L EHW3TA-A15L EHW3TA-B09L EHW3TA-B15L EHW3TA-C09L EHW3TA-C15L WMCB-01B WMCB-02A WMCB-02B WMCB-03A WMCB-04B WMCB-05A WMPD-01C
XX
XX
XX
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
Circuit Breaker (WMCB) and Toggle Disconnect
(WMPD)
Manual 2100-712E Page 28 of 38
MAINTENANCE AND TROUBLESHOOTING
Standard Maintenance Procedures
! WARNI NG
Electrical shock hazard. Disconnect all power supplies before servicing. Failure to do so could result in electric shock or death.
! CAUTI ON
Cut hazard. Wear gloves to avoid contact with sharp edges. Failure to do so could result in personal injury.
1. Disable system from LC6000 controller (see latest version of 2100-669 LC6000 Service Instructions manual).
2. Turn off AC breakers at wall-mount units. 3. Check inlet sides of condenser and evaporator coils
for obstructions/debris--clean if necessary using a quality manufactured coil cleaning product specific for the evaporator or condenser coil. · Condenser coil: Remove the fan shroud/
motor/motor bracket as an assembly from the condenser section. This will give clear access to the inlet side of the coil for cleaning. Follow the coil cleaner manufacturer's directions for necessary safety gear and precautions, as well as for application and use. More than one application may be necessary. Rinse thoroughly. · Evaporator coil: Remove the evaporator section panel and apply specific evaporator cleaner directly to the inlet side of coil, being very careful not to overspray into insulation or surrounding panels and wiring. Residual cleaner and dissolved debris should drip into the drain pan and leave the unit through the condensate hose. More than one application may be necessary. Rinse thoroughly.
4. Manually spin fan and blower motors to ensure they turn freely. All motors are permanently lubricated, so no oil is necessary.
5. Inspect free cooling damper actuator and linkage.
6. Install new air filter; check for additional filter grilles internal to the structure.
7. Inspect the control panel of the system.
· Look for insect or rodent activity and remove any nesting materials.
· Manually push contactor closed, observe for movement--contactor points should have minimal discoloration, no spalling or other signs of arcing. Replace if doubtful.
· Check field and factory wiring for tightness and look for signs of overheating (discoloration of terminals or wire insulation).
8. Ensure that supply and return registers are not obstructed, and more importantly, are not recycling the air to one another. Adjust supply louvers if necessary to direct discharge air away from any direct route to the return grille.
9. Re-assemble wall-mount unit, turn breakers back on.
10. Enable system to LC6000 controller (see latest version of 2100-669 LC6000 Service Instructions manual).
11. Repeat steps for additional wall-mount units.
Removal of Fan Shroud
1. Disconnect all power to the unit.
2. Remove the screws holding both grilles, one on each side of unit, and remove grilles.
3. Remove nine screws holding fan shroud to condenser and bottom.
4. Unwire condenser fan motor.
5. Slide complete motor, fan blade and shroud assembly out the left side of the unit.
6. Service motor/fan as needed. Any service work requiring removal or adjustment in the fan and/or motor will require that the dimensions be checked and blade adjusted in or out on the motor shaft accordingly (see page 26 for proper clearance adjustment).
7. Reverse steps to re-install.
Manual 2100-712E
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29 of 38
Troubleshooting Nidec SelecTech Series ECM Motors
If the Motor Is Running
1. It is normal for the motor to rock back and forth on start up. Do not replace the motor if this is the only problem identified.
2. If the system is excessively noisy, does not appear to change speeds in response to a demand (Heat, Cool, Other) or is having symptoms during the cycle such as tripping limit or freezing coil, check the following:
A. Wait for programmed delays to time out.
B. Ensure that the motors control inputs are wired as shown in the factory-supplied wiring diagram to ensure motor is getting proper control signals and sequencing.
C. Remove the filter and check that all dampers, registers and grilles are open and free flowing. If removing the filters corrects the problem, clean or replace with a less restrictive filter. Also check and clean the blower wheel or coil as necessary.
D. Check the external static pressure (total of both supply and return) to ensure it is within the range as listed on the unit serial plate. If higher than allowed, additional duct work is needed.
E. If the motor does not shut off at the end of the cycle, wait for any programmed delays to time out (no more than 90 seconds). Also make sure that there is no call for "Continuous Fan" on the "G" terminal.
F. If the above diagnostics do not solve the problem, confirm the voltage checks in the next section below, then continue with the Model SelecTech Communication Diagnostics.
If the Motor Is Not Running
1. Check for proper high voltage and ground at the L/L1, G and N/L2 connections at the motor (see Figure 33). Correct any voltage issues before proceeding to the next step. The SelecTech motor is voltage specific. Only the correct voltage should be applied to the proper motor. Input voltage within plus or minus 10% of the nominal line power VAC is acceptable.
FIGURE 33 Motor Connections
LINE POWER
GROUND
LINE POWER
L2 LINE EARTH POWER GROUND
L1 LINE POWER
NOTE: MOTOR IS CONSTANTLY POWERED BY LINE VOLTAGE
Manual 2100-712E Page 30 of 38
2. If the motor has proper high voltage and ground at the L/L1, G and N/L2 connections, continue with the Model SelecTech Communication Diagnostics.
Model SelecTech Communication Diagnostics
The SelecTech motor is communicated through 24 VAC low voltage (thermostat control circuit wiring).
1. Start with unit wiring diagram to confirm proper connections and voltage (see Figure 34).
2. Initiate a demand from the thermostat and check the voltage between the common and the appropriate motor terminal (1-5). ("G" input is typically on terminal #1, but always refer to wiring diagram.)
A. If the low voltage communication is not present, check the demand from the thermostat. Also check the output terminal and wire(s) from the terminal strip or control relay(s) to the motor.
B. If the motor has proper high voltage as identified on page 30 (Step 1 in If the Motor Is Not Running), proper low voltage to a programmed terminal and is not operating, the motor is failed and will require replacement.
FIGURE 34 Motor Connections
24VAC Common
24VAC "R" Signal through thermostat output.
24VAC Common
24VAC "R" Signal through thermostat output.
Manual 2100-712E
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Dirty Filter Switch
1. Disconnect all power to the unit. Remove control panel outer cover and upper front panel.
2. The dirty filter switch is located on top of the filter partition to the right of the blower wheels on W**ABP units and to the left of the blower wheels on W**LBP units (see Figure 35). The dirty filter indicator light and reset switch is attached to the side of the control panel on the right side of the filter access opening on W**ABP units and on the left side of the filter access opening on W**LBP units. Remove the cover on the dirty filter switch and ensure the knob is set at 0.4" W.C. (see Figure 36). This is only a recommended starting point prior to making switch adjustments. Switch setting is highly dependent on filter type used, blower speed, unit ducting and other unit installation characteristics. See Dirty Filter Switch Adjustment for instructions how to make proper switch adjustments.
3. Re-install upper front panel.
Dirty Filter Switch Adjustment
1. Apply power to the unit.
2. Turn the unit indoor blower on (energize R-G on low voltage terminal board).
3. With air filters installed and switch initially set at 0.4" W.C. (see Step 2 under Dirty Filter Switch), begin restricting the air filter of the unit using a piece of cardboard under the filters until the switch trips and the light comes on. If the filter is restricted by 75% (or desired restriction amount), skip to Step 6.
4. If switch setting adjustment is required, disconnect power to the unit. Remove the upper front panel and the cover on the airflow switch so that adjustment can be made. If the switch tripped before 75% restriction was reached, turn the knob slightly clockwise. If the switch tripped after 75%, turn the knob counter-clockwise (see Figure 36).
5. Replace the upper front panel and repeat Steps 1-3. Continue to make adjustments described in Step 4 until the desired restriction is obtained.
6. Remove the restriction and reset the filter switch. Replace the switch cover once adjustment is complete.
7. Install the outer control panel cover. This completes the adjustment.
W**LBP Units
FIGURE 35 Dirty Filter Switch Location
W**ABP Units
Manual 2100-712E Page 32 of 38
FIGURE 36 Adjusting Dirty Filter Switch
TURN CLOCKWISE TO INCREASE RESTRICTION AMOUNT REQUIRED TO ACTIVATE THE SWITCH AND COUNTER-CLOCKWISE TO DECREASE RESTRICTION AMOUNT
MIS-4086 B
Manual 2100-712E
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33 of 38
8301-057 Airflow Differential/Dirty Filter Switch
FIGURE 37 8301-057 Air Differential Switch Terminals
Terminals 1 - Normally Closed 2 - Normally Open 3 - Common NOTE: Contact position is in resting state.
8301-067 Outdoor Temperature/Humidity Sensor
FIGURE 38 8301-067 Sensor Dip Switches
8301-067 sensor Temperature/Resistance and Humidity/Voltage tables on pages 33 and 34.
Manual 2100-712E Page 34 of 38
TABLE 7 8301-067 Sensor: Temperature/Resistance
Temperature Resistance
F
C
-25 -31.7 148,452.94
-24 -31.1 143,910.37
-23 -30.6 139,521.46
-22 -30.0 135,280.55
-21 -29.4 131,182.22
-20 -28.9 127,221.25
-19 -28.3 123,392.63
-18 -27.8 119,691.54
-17 -27.2 116,113.37
-16 -26.7 112,653.66
-15 -26.1 109,308.15
-14 -25.6 106,072.72
-13 -25.0 102,943.44
-12 -24.4 99,916.50
-11 -23.9 96,988.26
-10 -23.3 94,155.21
-9 -22.8 91,413.97
-8 -22.2 88,761.30
-7 -21.7 86,194.07
-6 -21.1 83,709.29
-5 -20.6 81,304.06
-4 -20.0 78,975.60
-3 -19.4 76,721.24
-2 -18.9 74,538.41
-1 -18.3 72,424.61
0 -17.8 70,377.48
1 -17.2 68,394.70
2 -16.7 66,474.07
3 -16.1 64,613.46
4 -15.6 62,810.82
5 -15.0 61,064.17
6 -14.4 59,371.62
7 -13.9 57,731.32
8 -13.3 56,141.52
9 -12.8 54,600.50
10 -12.2 53,106.64
11 -11.7 51,658.35
12 -11.1 50,254.11
Temperature Resistance
F
C
13 -10.6 48,892.46
14 -10.0 47,571.97
15 -9.4 46,291.29
16 -8.9 45,049.09
17 -8.3 43,844.12
18 -7.8 42,675.14
19 -7.2 41,540.99
20 -6.7 40,440.51
21 -6.1 39,372.62
22 -5.6 38,336.26
23 -5.0 37,330.40
24 -4.4 36,354.06
25 -3.9 35,406.29
26 -3.3 34,486.17
27 -2.8 33,592.81
28 -2.2 32,725.36
29 -1.7 31,883.00
30 -1.1 31,064.92
31 -0.6 30,270.36
32 0.0 29,498.58
33 0.6 28,748.85
34 1.1 28,020.48
35 1.7 27,312.81
36 2.2 26,625.18
37 2.8 25,956.98
38 3.3 25,307.60
39 3.9 24,676.45
40 4.4 24,062.97
41 5.0 23,466.62
42 5.6 22,886.87
43 6.1 22,323.22
44 6.7 21,775.16
45 7.2 21,242.23
46 7.8 20,723.96
47 8.3 20,219.91
48 8.9 19,729.65
49 9.4 19,252.76
50 10.0 18,788.84
Temperature
F
C
51 10.6
52 11.1
53 11.7
54 12.2
55 12.8
56 13.3
57 13.9
58 14.4
59 15.0
60 15.6
61 16.1
62 16.7
63 17.2
64 17.8
65 18.3
66 18.9
67 19.4
68 20.0
69 20.6
70 21.1
71 21.7
72 22.2
73 22.8
74 23.3
75 23.9
76 24.4
77 25.0
78 25.6
79 26.1
80 26.7
81 27.2
82 27.8
83 28.3
84 28.9
85 29.4
86 30.0
87 30.6
88 31.1
Resistance
18,337.51 17,898.38 17,471.09 17,055.30 16,650.65 16,256.82 15,873.48 15,500.34 15,137.09 14,783.44 14,439.11 14,103.83 13,777.34 13,459.38 13,149.70 12,848.07 12,554.26 12,268.04 11,989.19 11,717.51 11,452.79 11,194.83 10,943.45 10698.45 10,459.65 10,226.90 10,000.00 9778.81 9563.15 9352.89 9147.86 8947.93 8752.95 8562.79 8377.31 8196.39 8019.91 7847.74
Temperature
F
C
89 31.7
90 32.2
91 32.8
92 33.3
93 33.9
94 34.4
95 35.0
96 35.6
97 36.1
98 36.7
99 37.2
100 37.8
101 38.3
102 38.9
103 39.4
104 40.0
105 40.6
106 41.1
107 41.7
108 42.2
109 42.8
110 43.3
111 43.9
112 44.4
113 45.0
114 45.6
115 46.1
116 46.7
117 47.2
118 47.8
119 48.3
120 48.9
121 49.4
122 50.0
123 50.6
124 51.1
125 51.7
Resistance
7679.76 7515.86 7355.94 7199.88 7047.59 6898.95 6753.88 6612.28 6474.05 6339.11 6207.37 6078.74 5953.15 5830.51 5710.75 5593.78 5479.55 5367.98 5258.99 5152.53 5048.52 4946.91 4847.63 4750.62 4655.83 4563.20 4472.67 4384.19 4297.71 4213.18 4130.55 4049.77 3970.79 3893.58 3818.08 3744.26 3672.07
Manual 2100-712E
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RH%
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33
TABLE 8 8301-067 Sensor: Humidity/Voltage
mA Output
4.000 mA 4.160 mA 4.320 mA 4.480 mA 4.640 mA 4.800 mA 4.960 mA 5.120 mA 5.280 mA 5.440 mA 5.600 mA 5.760 mA 5.920 mA 6.080 mA 6.240 mA 6.400 mA 6.560 mA 6.720 mA 6.880 mA 7.040 mA 7.200 mA 7.360 mA 7.520 mA 7.680 mA 7.840 mA 8.000 mA 8.160 mA 8.320 mA 8.480 mA 8.640 mA 8.800 mA 8.960 mA 9.120 mA 9.280 mA
RH%
34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67
mA Output
9.440 mA 9.600 mA 9.760 mA 9.920 mA 10.080 mA 10.240 mA 10.400 mA 10.560 mA 10.720 mA 10.880 mA 11.040 mA 11.200 mA 11.360 mA 11.520 mA 11.680 mA 11.840 mA 12.000 mA 12.160 mA 12.320 mA 12.480 mA 12.640 mA 12.800 mA 12.960 mA 13.120 mA 13.280 mA 13.440 mA 13.600 mA 13.760 mA 13.920 mA 14.080 mA 14.240 mA 14.400 mA 14.560 mA 14.720 mA
RH%
68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100
mA Output
14.880 mA 15.040 mA 15.200 mA 15.360 mA 15.520 mA 15.680 mA 15.840 mA 16.000 mA 16.160 mA 16.320 mA 16.480 mA 16.640 mA 16.800 mA 16.960 mA 17.120 mA 17.280 mA 17.440 mA 17.600 mA 17.760 mA 17.920 mA 18.080 mA 18.240 mA 18.400 mA 18.560 mA 18.720 mA 18.880 mA 19.040 mA 19.200 mA 19.360 mA 19.520 mA 19.680 mA 19.840 mA 20.000 mA
Manual 2100-712E Page 36 of 38
8408-044 Return Air Sensor/Suction Sensor
TABLE 9 8408-044 Sensor: Temperature/Resistance Curve J
Temperature ºF
-25.0 -24.0 -23.0 -22.0 -21.0 -20.0 -19.0 -18.0 -17.0 -16.0 -15.0 -14.0 -13.0 -12.0 -11.0 -10.0 -9.0 -8.0 -7.0 -6.0 -5.0 -4.0 -3.0 -2.0 -1.0 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 10.0 11.0 12.0
Resistance
196871 190099 183585 177318 171289 165487 159904 154529 149355 144374 139576 134956 130506 126219 122089 118108 114272 110575 107010 103574 100260 97064 93981 91008 88139 85371 82699 80121 77632 75230 72910 70670 68507 66418 64399 62449 60565 58745
Temperature ºF
13.0 14.0 15.0 16.0 17.0 18.0 19.0 20.0 21.0 22.0 23.0 24.0 25.0 26.0 27.0 28.0 29.0 30.0 31.0 32.0 33.0 34.0 35.0 36.0 37.0 38.0 39.0 40.0 41.0 42.0 43.0 44.0 45.0 46.0 47.0 48.0 49.0 50.0
Resistance
56985 55284 53640 52051 50514 49028 47590 46200 44855 43554 42295 41077 39898 38757 37652 36583 35548 34545 33574 32634 31723 30840 29986 29157 28355 27577 26823 26092 25383 24696 24030 23384 22758 22150 21561 20989 20435 19896
Temperature ºF
53.0 52.0 53.0 54.0 55.0 56.0 57.0 58.0 59.0 60.0 61.0 62.0 63.0 64.0 65.0 66.0 67.0 68.0 69.0 70.0 71.0 72.0 73.0 74.0 75.0 76.0 77.0 78.0 79.0 80.0 81.0 82.0 83.0 84.0 85.0 86.0 87.0 88.0
Resistance
19374 18867 18375 17989 17434 16984 16547 16122 15710 15310 14921 14544 14177 13820 13474 13137 12810 12492 12183 11883 11591 11307 11031 10762 10501 10247 10000 9760 9526 9299 9077 8862 8653 8449 8250 8057 7869 7686
Temperature ºF
89.0 90.0 91.0 92.0 93.0 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0
Resistance
7507 7334 7165 7000 6840 6683 6531 6383 6239 6098 5961 5827 5697 5570 5446 5326 5208 5094 4982 4873 4767 4663 4562 4464 4367 4274 4182 4093 4006 3921 3838 3757 3678 3601 3526 3452
Manual 2100-712E
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ALARM INDEX
Index 0 1 2 3 6 7 8 18 19 32 34 36 38 40 41 48 50 54 60 61 62 63 66 67 68 69 70 71 72 73 74 75 76 77 78 92 93 94 95
Alarm Log Export Variable Al_retain Al_Err_retain_write Al_ReturnAir1In Al_ReturnAir1High Al_MixedAir1In Al_MixedAir1High Al_MixedAir1Low Al_OutdoorAirIn Al_OutdoorHumIn Al_SuctionTemp1In Al_SuctionPress1In Al_LowPress1 Al_HighPress1 Al_Damper1FailedtoOpen Al_Damper1FailedtoClose Al_Freeze1In Al_Freeze1 Al_Filter1 Al_EmergencyVent Al_EmergencyCool Al_HeatRunaway Al_UnitDisable Al_LowSH_1 Al_LOP_1 Al_MOP_1 Al_HiTempCond_1 Al_LowSuct_1 Al_EEV_1 Al_SelfTuning_1 Al_EmergClos_1 Al_TempDelta_1 Al_P_Delta_1 Al_RangeError_1 Al_ServicePosit_perc_1 Al_ValveID_1 Al_Offline_THTN_1 Al_TempPrb_THTN_1 Al_HumPrb_THTN_1 Al_ClkBrd_THTN_1
TABLE 10 Wall-Mount Unit Alarm Index
PGD Displayed Alarm Description Error in the number of retain memory writings Error in retain memory writings Circuit 1 Return Air Temperature Sensor Alarm Circuit 1 High Return Air Temperature Alarm Circuit 1 Mixed Air Temperature Sensor Alarm Circuit 1 Mixed Air High Temperature Circuit 1 Mixed Air Low Temperature Outdoor Air Temperature Sensor Alarm Outdoor Air Humidity Sensor Alarm Circuit 1 Suction Temperature Sensor Alarm Circuit 1 Suction Pressure Sensor Alarm Circuit 1 Low Pressure Alarm Circuit 1 High Pressure Alarm Circuit 1 Damper Failed to Open Circuit 1 Damper Failed to Close Circuit 1 Freeze Temperature Sensor Alarm Circuit 1 Freeze Condition Dirty Filter 1 Alarm Emergency Ventalation Mode Active Emergency Cooling Mode Active Extreme High Return Temp Alarm (Heat Cutout) Unit Disable Alarm Circuit 1 Low SuperHeat Circuit 1 Low Evaporation Pressure Circuit 1 High Evaportation Pressure Circuit 1 High Condenser Temperature Circuit 1 Low Suction pressure Circuit 1 EEV motor error Circuit 1 SelfTuning error Circuit 1 Emergency close Circuit 1 High Delta Temperature Circuit 1 High Delta Pressure Circuit 1 Range Error Circuit 1 Service Position Percent Circuit 1 Valve ID Th-Tune Device Offline Th-Tune Temperature Probe Alarm Th-Tune Humidity Probe Alarm Th-Tune Clock Board Alarm
Manual 2100-712E Page 38 of 38
INSTALLATION INSTRUCTIONS
Bard Air Conditioning System
MULTI-TEC® W18-36A/LB Wall-Mount Air Conditioner
LC6000-200 Supervisory Controller
Bard Manufacturing Company, Inc. Bryan, Ohio 43506 www.bardhvac.com
Manual:
2100-713C
Supersedes: 2100-713B
Date:
7-2-21
Page
1 of 44
CONTENTS
General Information .................................................... 3 List of Necessary Materials/Tools.............................6 Site Preparation............................................................7
Model Identification ................................................ 7 New Shelter Installation vs. Retrofit Installation......... 7 Minimum Clearance ................................................ 7 Clearance to Combustibles....................................... 7 Wall-Mount Unit Mounting.........................................9 Mounting the Units ................................................. 9 Wall-Mount Unit Wiring ............................................15 Main Power Wiring ................................................ 15 Low Voltage Wiring................................................ 15 Preliminary Start Up..................................................19 Running in Orphan Mode....................................... 19 LC6000 Controller Installation.................................20 LC6000 Controller ................................................ 21
Mounting the LC Controller ............................. 21 Installing Remote Indoor Temperature/Humidity Sensor(s) ...................... 22 Installing Outdoor Temperature/Humidity Sensor .......................................................... 24 Emergency Off, Emergency Vent and Generator Run Connections ............................. 25 Communication Wiring.................................... 26 Supply Wiring ................................................ 31 System Set Up .............................................................34 TEC-EYE Hand-Held Diagnostic Tool ....................... 34 TEC-EYE Status Screen .................................. 35 Setting Up Wall-Mount Units for Operation.............. 35 1. Address Each Wall-Mount Unit .................... 35 2. Execute a Run Test on Each Unit................. 35 3. Clear Unit Alarm Logs on Each Unit ............. 36 Setting Up LC6000 for Operation ........................... 36 4. Set LC Controller Date and Time .................. 36 5. Configure Sensors ...................................... 37 6. Enter Total Number of Units........................ 40 7. Verify Units are Online................................ 40 8. Select Economizer Type for Each Zone ......... 40 9. Clear Controller Alarm Logs ......................... 41 10. Complete Installation................................ 41 Additional Information.............................................42 Menu Screens and Password Levels ........................ 42 Setpoints ............................................................. 42 Calibrating Sensors ............................................... 42 Remote Indoor Temperature/Humidity Sensor Orientation ........................................................... 44
FIGURES AND TABLES
Figure 1 MULTI-TEC W18-36A/LB Model Nomenclature ...6 Figure 2 Dimensions .................................................. 8 Figure 3 Outdoor Sensor Installation .............................9 Figure 4A W18/24 Mounting Instructions..................... 10 Figure 4B W30/36 Mounting Instructions..................... 11 Figure 5 Electric Heat Clearance ............................... 12 Figure 6 Wall Mounting Instructions .......................... 12 Figure 7 Wall Mounting Instructions .......................... 13 Figure 8 Common Wall Mounting Installations ............ 14 Figure 9 Circuit Routing Label .................................. 15 Figure 10 WIRING: VAC Supply Wiring Landing Points .. 15 Figure 11 Cooling and Heating Setpoints ..................... 19
Manual 2100-713C Page 2 of 44
Figure 12 Figure 13 Figure 14
Figure 15 Figure 16 Figure 17
Figure 18 Figure 19 Figure 20 Figure 21
Figure 22
Figure 23
Figure 24 Figure 25 Figure 26 Figure 27 Figure 28 Figure 29 Figure 30 Figure 31 Figure 32 Figure 33
Figure 34 Figure 35
Figure 36
Figure 37
Figure 38
Figure 39
Figure 40
Figure 41 Figure 42
Figure 43 Figure 44 Figure 45 Figure 46 Figure 47 Figure 48
Typical LC6000-200 Component Location .... 20 LC6000 Fused Power Supply Terminal.......... 21 Remote Indoor Temperature/Humidity Sensor Installation ...................................... 22 Additional Remote Sensor Installation .......... 23 Remote Outdoor Sensor Installation.............. 24 Emergency Off, Emergency Vent and Generator Run Connections ................... 25 Communication Wiring (Daisy Chain) ............ 26 Communication Wiring (Alt. Method) ............ 26 Placement of Communication Filters ............ 27 Communication Wiring: Termination at the Controller.......................................... 28 Communication Wiring: Termination at the First Wall-Mount Unit......................... 29 Communication Wiring: Termination at Additional Wall-Mount Units .................... 30 LC6000 Controller Circuit Install.................. 31 Controller Grounding Posts .......................... 31 WIRING: LC6000-200 Wiring Diagram ......... 33 TEC-EYE Connection to Unit Control............. 34 TEC-EYE Display and Interface..................... 34 Unit Configuration....................................... 35 Executing Run Test ..................................... 36 Clearing Unit Alarm Logs ............................. 36 Setting Controller Date and Time .................. 37 Enable/Disable Zone 1 Indoor Humidity Sensor ....................................................... 37 LC6000 Controller Display and Interface ......... 37 Enable/Disable Zone 2 Indoor Humidity Sensor ....................................................... 38 Enable/Disable Zone 3 Indoor Humidity Sensor ....................................................... 38 Enable/Disable Zone 1 Indoor Temperature Sensor ....................................................... 38 Enable/Disable Zone1 Remote Temperature Sensor ....................................................... 39 Enable/Disable Zone 2 Remote Temperature Sensor ....................................................... 39 Enable/Disable Zone 3 Remote Temperature Sensor ....................................................... 39 Enable/Disable Outdoor Air Humidity Sensor ...39 Enable/Disable Outdoor Air Temperature Sensor ....................................................... 40 Total Units Displayed .................................. 40 Selecting Economizer Type .......................... 41 Clearing LC6000 Alarm Logs ....................... 41 Adjusting Sensor Offset Value ...................... 42 Current Sensor Orientation........................... 44 Earlier Sensor Orientation ............................ 44
Table 1A Table 1B Table 2 Table 3A Table 3B Table 4 Table 5 Table 6 Table 7
W**ABP Series (60Hz) Electrical Specs........ 16 W**LBP Series (60Hz) Electrical Specs........ 17 W**ABE Series Electrical Specifications ....... 17 W**ABP Series (50Hz) Electrical Specs........ 18 W**LBP Series (50Hz) Electrical Specs........ 18 LC6000-200 Terminal Block Index............... 32 LC6000/TEC-EYE Passwords (Default).......... 34 MULTI-TEC Unit Status Messages ................ 43 LC6000 Status Messages ............................ 43
GENERAL INFORMATION
Air Conditioning System
This Bard air conditioning system is composed of MULTI-TEC wall-mounted air conditioners matched with an LC6000 supervisory controller, th-Tune singleunit controller or PGD stand-alone display. If only one wall-mounted air conditioner is being used, it can be matched with either the LC6000 supervisory controller, th-Tune or PGD (see Single Unit Operation on page 3 for information on the th-Tune and PGD). If more than one wall mount is installed, the LC6000 controller must be matched with the air conditioning units. The wall-mount units are specifically engineered for telecom/motor control center rooms.
NOTE: The LC6000 supervisory controller and MULTI-TEC wall-mount units are designed specifically to work together. The controller cannot run other brands of systems, nor can other controllers run the MULTI-TEC wall-mount units. They are a complete system, and must be used together.
Controller
LC6000 controller and accessories shown below.
LC6000-200 Series Controller and Accessories Included with Controller
+
(1) TEC-EYETM Hand-Held Diagnostic Tool Bard P/N 8301-059
(1) Remote Temperature/Humidity Sensor1 Bard P/N 8403-079
(1) LC6000 Programmable Logic Controller
(1) 35' 5-Wire 18 Gauge Shielded Cable
(2) Communication EMI Filters Bard P/N 8301-055
Optional Sensors:
Outside Air Temperature/Humidity Sensor
Bard P/N 8301-090
Remote Temperature/Humidity Sensor1
Bard P/N 8403-079
Remote Temperature Only Sensor
Bard P/N 8301-058
1 One remote temperature/humidity sensor is included with the LC6000 controller. If the site in which the LC6000 controller will be used has more than one zone (maximum three zones per LC6000), additional remote temperature/ humidity sensors (one sensor per zone) will need to be purchased and installed in the additional zones. One additional temperature-only sensor (Bard P/N 8301-058) may also be used in Zone 1 but will also need to be purchased separately. Additional temperature/humidity sensors require field-supplied 5-wire 18 gauge shielded cable. Temperature-only sensors require field-supplied 2-wire 18 gauge shielded cable.
Manual 2100-713C
Page
3 of 44
Wall-Mount Air Conditioner Units
The MULTI-TEC units will supply 100% of rated cooling airflow in free cooling mode with ability to exhaust the same amount through the unit itself without any additional relief openings in the shelter.
MULTI-TEC units are fully charged with refrigerant and have optional electric heat.
Single Unit Operation
A PGD stand-alone display (Bard P/N 8620-306 or 8620-307) or th-Tune single-unit controller (Bard P/N 8403-088) can be used in place of the LC6000 controller when only one MULTI-TEC wall-mount air conditioner is being installed. If using a PGD or th-Tune instead of the LC6000 controller, the alarm logging and remote communication capabilities of the LC6000 controller will not be available. See PGD manual 2100-734 or th-Tune manual 2100-678 for information on installing and setting up a PGD or thTune for single unit operation. A TEC-EYE hand-held diagnostic tool is required to program the wall-mount unit for PGD or th-Tune operation. The th-Tune and TEC-EYE diagnostic tool are available as a kit (Bard P/N 8620-264).
General
The equipment covered in this manual is to be installed by trained, experienced service and installation technicians.
The refrigerant system is completely assembled and charged. All internal wiring is complete.
The unit is designed for use with or without duct work. Flanges are provided for attaching the supply and return ducts.
These instructions explain the recommended method to install the air cooled self-contained unit and the electrical wiring connections to the unit.
These instructions and any instructions packaged with any separate equipment required to make up the entire air conditioning system should be carefully read before beginning the installation. Note particularly any tags and/or labels attached to the equipment.
While these instructions are intended as a general recommended guide, they do not supersede any national and/or local codes in any way. Authorities having jurisdiction should be consulted before the installation is made. See Additional Publications for information on codes and standards.
Sizing of systems for proposed installation should be based on heat loss and heat gain calculations made according to methods of Air Conditioning Contractors of America (ACCA). The supply flange should be installed in accordance with the Standards of the National Fire Protection Association for the Installation of Air Conditioning and Ventilating Systems of Other Than Residence Type, NFPA No. 90A, and Residence Type
Warm Air Heating and Air Conditioning Systems, NFPA No. 90B. Where local regulations are at a variance with instructions, installer should adhere to local codes.
Shipping Damage
Upon receipt of equipment, the cartons should be checked for external signs of shipping damage. If damage is found, the receiving party must contact the last carrier immediately, preferably in writing, requesting inspection by the carrier's agent.
These units must remain in upright position at all times.
Additional Publications
These publications can help when installing the air conditioner. They can usually be found at the local library or purchased directly from the publisher. Be sure to consult the current edition of each standard.
National Electrical Code ......................ANSI/NFPA 70
Standard for the Installation of Air Conditioning and Ventilating Systems ...................ANSI/NFPA 90A
Standard for Warm Air Heating and Air Conditioning Systems ............ANSI/NFPA 90B
Load Calculation for Residential Winter and Summer Air Conditioning ............. ACCA Manual J
For more information, contact these publishers:
Air Conditioning Contractors of America (ACCA) 1712 New Hampshire Ave. N.W. Washington, DC 20009 Telephone: (202) 483-9370 Fax: (202) 234-4721
American National Standards Institute (ANSI) 11 West Street, 13th Floor New York, NY 10036 Telephone: (212) 642-4900 Fax: (212) 302-1286
American Society of Heating, Refrigeration and Air Conditioning Engineers, Inc. (ASHRAE) 1791 Tullie Circle, N.E. Atlanta, GA 30329-2305 Telephone: (404) 636-8400 Fax: (404) 321-5478
National Fire Protection Association (NFPA) Batterymarch Park P. O. Box 9101 Quincy, MA 02269-9901 Telephone: (800) 344-3555 Fax: (617) 984-7057
Manual 2100-713C Page 4 of 44
ANSI Z535.5 Definitions:
DANGER: Indicate[s] a hazardous situation which, if not avoided, will result in death or serious injury. The signal word "DANGER" is to be limited to the most extreme situations. DANGER [signs] should not be used for property damage hazards unless personal injury risk appropriate to these levels is also involved.
WARNING: Indicate[s] a hazardous situation which, if not avoided, could result in death or serious injury. WARNING [signs] should not be used for property damage hazards unless personal injury risk appropriate to this level is also involved.
CAUTION: Indicate[s] a hazardous situation which, if not avoided, could result in minor or moderate injury. CAUTION [signs] without a safety alert symbol may be used to alert against unsafe practices that can result in property damage only.
NOTICE: [this header is] preferred to address practices not related to personal injury. The safety alert symbol shall not be used with this signal word. As an alternative to "NOTICE" the word "CAUTION" without the safety alert symbol may be used to indicate a message not related to personal injury.
! WARNI NG
Electrical shock hazard. Have a properly trained individual perform these tasks. Failure to do so could result in electric shock or death.
! WARNI NG
Fire hazard. Maintain minimum 1/4" clearance between the supply air duct and combustible materials in the first 3' of ducting. Failure to do so could result in fire causing damage, injury or death.
! WARNI NG
Heavy item hazard. Use more than one person to handle unit. Failure to do so could result in unit damage or serious injury.
! CAUTI ON
Sharp metallic edges. Take care and wear appropriate protective devices to avoid accidental contact with sharp edges. Failure to do so can result in personal injury.
Manual 2100-713C
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LIST OF NECESSARY MATERIALS/TOOLS
Additional hardware and miscellaneous supplies are needed for installation. These items are field supplied and must be sourced before installation. This list also includes tools needed for installation.
List of Materials/Tools
· Personal protective equipment/safety devices/antistatic wrist straps
· Supply and return grilles · Field-fabricated sleeves (if necessary) · Fasteners sufficient for mounting the units such as
5/16" diameter anchor/lag bolts · 7/8" diameter washers · Fasteners appropriate for the shelter wall
construction to attach the controller to the wall · Commercial grade outdoor silicone sealant · Miscellaneous hand and power tools and jobsite or
shop materials · Lifting equipment with the necessary capacity and
rigging to safely move/install the systems
· Electrical supplies
- Various size circuit breakers for the shelter AC breaker box (see Electrical Specification tables on pages 16, 17 and 18)
- High-voltage wire of various gauges (see tables on pages 16, 17 and 18)
- 16 gauge minimum, 14 gauge maximum power wire to connect controller to shelter power source
- 5-wire, 18 gauge shielded cable for remote temperature and humidity sensors (2-wire, 18 gauge shielded cable for temperature-only sensors)
- Communication wire: 2-wire, 18 gauge, shielded with drain
- 18 gauge non-shielded wire for connecting emergency off, emergency vent and/or generator, if applicable, to controller
- CAT 6 Ethernet cable of field-determined length (for remote communication, if applicable)
- 2 hole grounding lug (to be used with supplied 1/4" bolts and nuts for grounding controller box)
- Miscellaneous electrical supplies including rigid/ flexible conduit and fittings, 2" x 4" junction boxes (one per temperature/humidity sensor), wire connectors and supports
FIGURE 1 MULTI-TEC W18-36A/LB Wall-Mount Unit Model Nomenclature
W 36 A B P A 10 5 X X X X E
MODEL SERIES
CAPACITY 18 1½ Ton
24 2 Ton 30 2½ Ton
36 3 Ton
A Right Hand L Left Hand
REVISION
P PLC Logic Board E PLC with Electric Reheat Dehumidification
A 230/208/60/1 B 230/208/60/3 C 460/60/3 D 240/220/50/1
VOLTS & PHASE E 240/220/50/3
or 220/200/50/3 F 415/380/50/3 Q 575/60/3
KW
Having "B" in this position in the model number disables all economizer function. Emergency vent will still operate when "B" is in this position.
VENTILATION OPTIONS B Blank-off Plate 5 or E Economizer
Manual 2100-713C Page 6 of 44
CONTROL MODULES E Low Ambient Control C Low Ambient Control
and Crank Case Heater
COIL OPTIONS X Standard 1 Phenolic Coated Evaporator 2 Phenolic Coated Condenser 3 Phenolic Coated Evaporator and
Condenser 4 Coated Coils and Condenser Section 5 Coated Coils, Inside and
Outside of Unit
PLACEHOLDER X for future use
COLOR OPTIONS X Beige (Standard) 1 White 4 Buckeye Gray 5 Desert Brown
8 Dark Bronze S Stainless Steel A Aluminum
FILTER OPTIONS X 1" Throwaway (Standard) W 1" Washable P 2" Pleated (MERV 8)
M 2" Pleated (MERV 11) N 2" Pleated (MERV 13)
SITE PREPARATION
Model Identification
Identify the specific model using the model nomenclature information found in Figure 1 and the model/serial tag found on the unit. See Figure 2 on page 8 for dimensions and critical installation requirements.
New Shelter Installation vs. Retrofit Installation
These installation instructions cover both new shelter installations and retrofit installations. Each installation is unique and may require special accommodations and modifications. Although Bard Manufacturing follows a long-established tradition of manufacturing equipment using industry standard dimensions for building penetration, it is occasionally necessary to move or enlarge supply and return openings when replacing non-standardized equipment in a retrofit application.
Minimum Clearance
Wall-mount air conditioners are available in both righthand access models and left-hand access models. Right-hand access models have the heat strip access panel, external circuit breakers access panel and internal controls access panel on the right side of the unit. Left-hand access models are a mirror image of the right-hand access models, and allow two wall-mount units to be placed in relatively close proximity and yet still allow complete access for maintenance and repair.
On side-by-side installations, maintain a minimum of 20" clearance on control side to allow access to control panel and heat strips, and to allow proper airflow to the outdoor coil. For installations where units are installed with both control panels facing each other (inward), maintain a minimum of 36" clearance to allow access. Additional clearance may be required to meet local or national codes.
Care should be taken to ensure that the recirculation and obstruction of condenser discharge air does not occur. Recirculation of condenser discharge air can be from either a single unit or multiple units. Any object such as shrubbery, a building or a large object can cause obstructions to the condenser discharge air. Recirculation or reduced airflow caused by obstructions will result in reduced capacity, possible unit pressure safety lockouts and reduced unit service life.
For units with blow through condensers, such as these wall-mount units, it is recommended there be a minimum distance of 10' between the front of the unit and any barrier or 20' between the fronts of two opposing (facing) units.
Clearances Required for Service Access and Adequate Condenser Airflow
MODELS
LEFT RIGHT DISCHARGE
SIDE SIDE
SIDE
W18A, W24A, W30A, W36A
15"
20"
10'
W18L, W24L, W30L, W36L
20"
15"
10'
NOTE: For side-by-side installation of two units there must be 20" between units. This can be reduced to 15" by using a W**L model (left side compressor and controls) for the left unit and W**A (right side compressor and controls) for right unit. See Specifications Sheets S3595 or S3610.
Clearance to Combustibles
! WARNI NG
Fire hazard.
Maintain minimum 1/4" clearance between the supply air duct and combustible materials in the first 3' of ducting. Failure to do so could result in fire causing damage, injury or death.
The unit itself is suitable for 0" clearance, but the supply air duct flange and the first 3' of supply air duct require a minimum of 1/4" clearance to combustible material. However, it is generally recommended that a 1" clearance is used for ease of installation and maintaining the required clearance to combustible material. See Figures 4A and 4B on pages 10 and 11 for details on opening sizes.
Minimum Clearances Required to Combustible Materials
MODELS
SUPPLY AIR DUCT FIRST 3'
W18A, L W24A, L
0"
W30A, L W36A, L
1/4"
CABINET 0" 0"
Manual 2100-713C
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FIGURE 2
Dimensions of Basic Unit for Architectural and Installation Requirements (Nominal)
MODEL
WIDTH (W)
DEPTH (D)
HEIGHT (H)
SUPPLY AB
RETURN CB
E
F
G
I
J
K L MNO P
Q
R
S
W18*B W24*B
33.300 17.125 74.563 7.88 19.88 11.88 19.88 35.00 10.88 29.75 20.56 30.75 32.06 33.25 31.00 2.63 34.13 26.06 10.55 4.19 12.00
W30*B W36*B
38.200 17.125
74.563 7.88 27.88 13.88 27.88 40.00 10.88 29.75 17.93 30.75 32.75 33.25 31.00 2.75 39.13 26.75 9.14 4.19 12.00
T 9.00 9.00
All dimensions are in inches. Dimensional drawings are not to scale.
W
W**A RIGHT 5.88 UNIT
F
1 Filter Access Panel Ventilation Air
G
Condenser
Air Outlet
Front View
Built In Rain Hood
4° Pitch Heater Access Panel Electric
Heat C. Breaker/ Disconnect Access Panel (Lockable)
Hood for ECON models only
Standard
flush vent
door for non-
ERV/CRV
Econ.
models
7.00
Low Voltage Electrical Entrance
High Voltage Electrical Entrance
D
1.250
2.13
A
Side Wall Mounting
Brackets
(Built In)
I Top Rain Flashing Shipping Location
Optional C H Electrical
Entrances
K
Cond. J Air Inlet
L
M P
Drain
N
Side View
E O
.44
R
Supply Air Opening
B
S
S
Return Air Opening
S
S
S
T
Bottom Installation
Q
Back View Bracket
MIS-3889
W**L LEFT UNIT
E O .44
R
Supply Air Opening
S B
S
S
Return Air Opening
Side Wall Mounting Brackets (Built In)
Built In Rain Hood 4° Pitch
D 2.13
A
Top Rain I Flashing Shipping Location
1.250
Electric Heat Heater
Access Panel C. Breaker/ Disconnect Access Panel (Lockable) Standard flush
vent door for non-ERV/CRV
Econ. models
Hood for ECON models only
Optional Electrical
C
Entrances
S
H
L
K
7.000
M
Cond.
S
P
J
Air
Inlet
Low Voltage Electrical
Entrance
T
High Voltage
Drain Bottom Back View
N
Side View
Electrical Entrance
Installation Bracket
Q
MIS-3889
W
Filter Access Panel 1
5.88
Ventilation Air
F
Condenser
G
Air Outlet
Front View
MIS-3890
MIS-3890
Manual 2100-713C Page 8 of 44
WALL-MOUNT UNIT MOUNTING
Mounting the Units
! WARNI NG
Heavy item hazard.
Use more than one person to handle unit.
Failure to do so could result in unit damage or serious injury.
NOTE: It may be best to spot some electrical knockouts (such as those located on the back of the wall-mount unit) before units are mounted and access is unavailable or limited (see Figure 2 to locate pre-punched knockouts).
Two holes for the supply and return air openings must be cut through the wall as shown in Figures 4A and 4B on pages 10 and 11. On wood frame walls, the wall construction must be strong and rigid enough to carry the weight of the unit without transmitting any unit vibration. All walls must be thoroughly inspected to ensure that they are capable of carrying the weight of the installed unit.
In retrofit (unit replacement) installations, the openings cut for the original equipment may not line up exactly with needs of this installation. Modifications may need to be made, such as increasing or decreasing the size of the wall cutouts. The existing bolt placement may not line up in which case the original bolts would need to be removed or cut away.
1. These units are secured by full-length mounting flanges built into the cabinet on each side which secure the unit to the outside wall surface. A bottom mounting bracket, attached to skid for shipping, is provided for ease of installation, but is not required.
2. The unit itself is suitable for 0" clearance, but the supply air duct flange and the first 3' of supply air duct require a minimum of 1/4" clearance to combustible material. However, it is generally recommended that a 1" clearance is used for ease of installation and maintaining the required clearance to combustible material. See Figures 4A and 4B for details on opening sizes.
3. Locate and mark lag bolt locations and location for optional bottom mounting bracket, if desired (see Figures 4A and 4B).
4. Mount bottom mounting bracket (if used).
5. If desired, hook top rain flashing (attached to frontright of supply flange for shipping) under back bend of top.
6. Position unit in opening and secure with fasteners sufficient for the application such as 5/16" lag/ anchor/carriage bolts; use 7/8" diameter flat washers on the lag bolts. It is recommended that a bead of silicone caulking be placed behind the side mounting flanges.
7. Secure optional rain flashing to wall and caulk across entire length of top (see Figures 4A and 4B).
8. For additional mounting rigidity, the return air and supply air frames or collars can be drilled and screwed or welded to the structural wall itself (depending upon wall construction). Be sure to observe required clearance if combustible wall.
9. A plastic drain hose extends from the drain pan at the top of the unit down to the unit base. There are openings in the unit base for the drain hose to pass through. In the event the drain hose is connected to a drain system of some type, it must be an open or vented type system to assure proper drainage.
10. Install outdoor temperature/humidity sensor (see Figure 3). Remove grommet from base and sensor. Discard shipping bracket. Place sensor extension through hole in base under condenser fan and secure to base with screw.
FIGURE 3 Outdoor Sensor Installation
Manual 2100-713C
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Manual 2100-713C Page 10 of 44
FIGURE 4A W18A, W18L, W24A, W24L
Mounting Instructions
SEAL WITH BEAD OF CAULKING ALONG ENTIRE LENGTH OF TOP.
TOP
WALL
RAIN FLASHING SUPPLIED
FOAM AIR SEAL WALL STRUCTURE
3
1 2
"
12" 12"
7
1 16
"
20"
7
1 16
"
Supply Opening
8"
20
1 2
"
12"
Return Opening
12"
12"
20"
12"
9"
7 8
"
2"
3" 1"
4" Typ.
4"
3
1 8
"
Typ.
5"
2"
Wall Opening and Hole Location View
HEATER ACCESS PANEL
SUPPLY AIR DUCT
RETURN AIR OPENING
NOTES:
IT IS RECOMMENDED THAT A BEAD OF SILICONE CAULKING BE PLACED BEHIND THE SIDE MOUNTING FLANGES AND UNDER TOP FLASHING AT TIME OF INSTALLATION.
J**A UNIT SHOWN, J**L UNIT CONTROLS AND HEATER ACCESS IS ON OPPOSITE (LEFT) SIDE.
Right Side View
MIS-3157 A
11 of 44
Page
Manual 2100-713C
FIGURE 4B W30A, W30L, W36A, W36L
Mounting Instructions
A
B
REQUIRED DIMENSIONS TO MAINTAIN
1/4" MIN. CLEARANCE FROM
28 3/8 8 3/8
COMBUSTIBLE MATERIALS
REQUIRED DIMENSIONS TO MAINTAIN RECOMMENDED 1" CLEARANCE FROM 29 7/8 9 7/8 COMBUSTIBLE MATERIALS
C
D
E
5 3/8 3 11/16 17 5/8
4 5/8 4 7/16 16 7/8
SEAL WITH BEAD OF CAULKING ALONG ENTIRE LENGTH OF TOP.
TOP
WALL
C
A
C
D
Supply Opening
B
12"
E 12"
12"
Return Opening
14"
12"
12"
7 8
"
9
1 16
"
4
11 16
"
28"
2
7 8
"
7 8
"
3
1 8
"
4"
Typ.
4" Typ.
4
7 8
"
4
11 16
"
Wall Opening and Hole Location View
HEATER ACCESS PANEL
RAIN FLASHING SUPPLIED
FOAM AIR SEAL
WALL STRUCTURE
SUPPLY AIR DUCT
1/4" CLEARANCE ON ALL FOUR SIDES OF SUPPLY AIR DUCT IS REQUIRED FROM COMBUSTABLE MATERIALS
RETURN AIR OPENING
NOTES:
IT IS RECOMMENDED THAT A BEAD OF SILICONE CAULKING BE PLACED BEHIND THE SIDE MOUNTING FLANGES AND UNDER TOP FLASHING AT TIME OF INSTALLATION.
W**A UNIT SHOWN, W**L UNIT CONTROLS AND HEATER ACCESS IS ON OPPOSITE (LEFT) SIDE.
Right Side View
MIS-3820
FIGURE 5 Electric Heat Clearance
FIGURE 6 Wall Mounting Instructions
See FIGURE 2 Mounting Instructions
SUPPLY AIR OPENING
SUPPLY AIR OPENING
FACTORY SUPPLIED RAIN FLASHING. MOUNT ON UNIT
BEFORE INSTALLATION
WALL STRUCTURE
SUPPLY AIR DUCT
RETURN AIR OPENING
RETURN AIR OPENING
RETURN AIR OPENING
CONCRETE BLOCK WALL INSTALLATION
Manual 2100-713C Page 12 of 44
WOOD OR STEEL SIDING
WOOD FRAME WALL INSTALLATION
BOTTOM MOUNTING BRACKET. MOUNT ON
WALL BEFORE INSTALLING UNIT.
SIDE VIEW
MIS-548 A
MIS-549 B
FIGURE 7 Wall Mounting Instructions
ATTACH TO TOP PLATE OF WALL 1.000" CLEARANCE ALL AROUND DUCT INTERIOR FINISHED WALL OVER FRAME 1.000" CLEARANCE ALL AROUND DUCT
EXTERIOR FINISH WALL OVER FRAME
FRAMING MATERIAL 2 x 4'S, 2 x 6'S &/OR STRUCTURAL STEEL
ATTACH TO BOTTOM PLATE OF WALL
SSEEEEUUNNITITDDIMIMEENNSSIOIONNSS, F, IFGIGUURERE1.2, FFOORRAACCTTUUAALLDDIMIMEENNSSIOIONNSS.
E + 1.000 B
1.000
SUPPLY DUCT OPENING
A
I
RETURN DUCT OPENING
C
K 2 x 6 CL
THIS STRUCTURAL MEMBER LOCATED TO MATCH STUD SPACING FOR REST OF WALL. A SECOND MEMBER MAY BE REQUIRED FOR SOME WALLS.
Manual 2100-713C
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FIGURE 8 Common Wall Mounting Installations
Non-Ducted Installations
Unit is sealed to wall.
Wall Mount Unit
Ceiling Supply Air Adjustable Supply Grille
Fixed Blade Return Grille
Unit is sealed to wall.
Wall Mount Unit
Ducted Installations
Ceiling
Supply Air Duct Optional Dropped Ceiling Fixed Blade Return Grille
Outside Wall Room Air
Outside Wall Supply Air Supply Air
Return Air Return Air
Room Air
Indoor Area
Indoor Area
Non-ducted installations supply conditioned air into indoor room areas without extensive duct work. The supply airstream is directed by adjusting the 4-way supply grille to reach areas being conditioned. The supply air mixes with the room air and cools or heats occupants and/or equipment in the area. Unconditioned room air is returned to the unit through the return grille. Avoid supply air leaving supply grille and re-entering the unit return grille without mixing with room air.
Ducted installations supply conditioned air into indoor room areas using solid or flexible ducts. The supply air is distributed throughout a single area or multiple areas. The supply air mixes with the room air and cools or heats occupants and/or equipment. Unconditioned room air is returned to the unit through a return grille or return duct work. Avoid using restrictive duct work to provide the best unit performance and efficiency. Review duct static pressure requirements provided in this manual.
Outdoor Wall Curb Installations
Curb is sealed to wall.
Ceiling
Supply Air
Wall Mount Unit
Adjustable Supply Grille Fixed Blade Return Grille
WAPR11 Indoor Sound Plenum Installations
Unit is sealed to wall.
Ceiling
Wall Mount Unit
Supply Air Duct Optional Dropped Ceiling
Wall Curb Outside Wall
Room Air Outside Wall
Supply Air Supply Air
Return Air
Unit is sealed to curb.
Indoor Area
Outdoor Wall curbs are installed between the wall mount unit and the outer wall surface. Wall curb use may avoid resizing supply and return openings that are currently in an existing wall. Wall curbs may also provide sound isolation and indoor area sound reduction. Various curb options are available, and it is important to select a curb that will meet the application requirements and also be the correct size for the unit. Unit duct static requirements cannot be exceeded when using a wall curb. Follow all instructions provided with the wall curb when installing the product.
WAPR11 Plenum
Return Air
Room Air Indoor Area
Indoor sound plenums are installed inside the room over the unit return air opening. Plenum use can provide sound isolation and indoor area sound reduction. The WAPR11 sound plenum provides a single solution for all unit tonnage sizes. The WAPR11 may be installed horizontally or vertically in the room. Unit duct static requirements cannot be exceeded when using a sound plenum. Follow all instructions provided with the sound plenum when installing the product.
MIS-550 D
Manual 2100-713C Page 14 of 44
Main Power Wiring
! WARNI NG
Electrical shock hazard. Do not operate this equipment without an earth ground attached and always disconnect the remote electric power supplies before servicing. Electrical shock can result in serious injury or death.
WALL-MOUNT UNIT WIRING
FIGURE 9 Circuit Routing Label
ROUTE ALL HIGH VOLTAGE FIELD WIRES TO THE RIGHT OF THE WIRE
SHIELD AS SHOWN ACHEMINER LES FILS HAUTE TENSION SUR LA DROITE VERS LA PROTECTION, COMME INDIQUÉ
CIRCUIT BREAKER /DISJONCTEUR
WIRE SHIELD / PROTECTION
COMPRESSOR CONTACTOR / CONTACTEUR DU COMPRESSEUR
Refer to the unit rating plate or Tables 1, 2 or 3 (pages 16-18) for wire sizing information and maximum fuse or circuit breaker size. Each outdoor unit is marked with a "Minimum Circuit Ampacity". The field wiring used must be sized to carry that amount of current. Depending on the installed KW of electric heat, there may be two field power circuits required. If this is the case, the unit rating plate will so indicate. All models are suitable only for connection with copper wire. Each unit and/or wiring diagram will be marked "Use Copper Conductors Only". These instructions must be adhered to. Refer to the National Electrical Code (NEC) for complete current carrying capacity data on the various insulation grades of wiring material. All wiring must conform to NEC and all local codes.
The unit rating plate and Tables 1, 2 and 3 list fuse and wire sizes (75°C copper) for all models including the most commonly used heater sizes. Also shown are the number of field power circuits required for the various models with heaters.
The unit rating plate lists a maximum circuit breaker or fuse that is to be used with the equipment. The correct size must be used for proper circuit protection and also to assure that there will be no nuisance tripping due to the momentary high starting current of the compressor motor.
Route all field wires to the right of the wire shield as shown in the circuit routing label found in Figure 9 (and also on the wall-mount units).
See Figure 10 to reference VAC landing points.
The disconnect access door on this unit may be locked to prevent unauthorized access to the disconnect. To convert for the locking capability, bend the tab located in the bottom left-hand corner of the disconnect opening under the disconnect access panel straight out. This tab will now line up with the slot in the door. When shut, a padlock may be placed through the hole in the tab preventing entry.
7961-393
FIGURE 10 VAC Supply Wiring Landing Points
Factory Wiring
Field Wiring
DISTRIBUTION
MIS-4171
Bard Mfg. Co. Bryan, Ohio
1 2 3 4 5
NOTE: Right-hand access model wiring landing points are shown here; left-hand access models will mirror this image.
Low Voltage Wiring
230/208V 1 phase and 3 phase equipment use dual primary voltage transformers. All equipment leaves the factory wired on 240V tap. It is very important that the correct voltage tap is used. For 208V operation, reconnect from 240V to 208V tap. The acceptable operating voltage range for the 240 and 208V taps are: 240V Tap (253 216) and 208 Tap (220 197).
NOTE:
The voltage should be measured at the field power connection point in the unit and while the unit is operating at full load (maximum amperage operating condition.
For low voltage wiring, an 18 gauge copper, color-coded cable is recommended.
Manual 2100-713C
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TABLE 1A Electrical Specifications - W**ABP Series - 60Hz Units
Single Circuit
Multiple Circuit
Model
W18ABPA00, A0Z A05 A08 A10
W24ABPA00, A0Z A05 A08 A10
W24ABPB00, B0Z B06
W24ABPC00, C0Z C06
W30ABPA00, A0Z A05 A08 A10 A15
W30ABPB00, B0Z B06 B09 B15
W30ABPC00, C0Z C06 C09 C12 C15
W36ABPA00, A0Z A05 A08 A10 A15
W36ABPB00, B0Z B06 B09 B15
W36ABPC00, C0Z C06 C09 C15
Rated Volts & Phase
230/208-1 230/208-1 230/208-3
460-3 230/208-1
230/208-3
460-3
230/208-1
230/208-3 460-3
No. Field Power Circuits
Minimum
Circuit Ampacity
Maximum External
Fuse or Ckt. Brkr.
Field Power Wire Size
Ground
Wire
1
16
1
30
1
45
1
56
1
21
1
30
1
46
1
57
1
15
1
23
1
8
1
12
1
23
1
31
1
47
1
57
1 or 2
83
1
17
1
23
1
32
1
50
1
9
1
12
1
16
1
20
1
25
1
27
1
32
1
48
1
58
1 or 2
84
1
20
1
24
1
33
1
51
1
9
1
11
1
15
1
24
20
12 12
30
10 10
45
8
10
60
6
10
30
10 10
30
8
10
50
8
10
60
6
10
20
12 14
25
10 10
10
14 14
15
14 14
35
8
10
35
8
10
50
8
10
60
6
10
90
4
8
20
12 12
25
10 10
35
8
10
50
8
10
10
14 14
15
14 14
20
12 12
20
12 12
25
10 10
35
8
10
35
8
10
50
8
10
60
6
10
90
4
8
25
10 10
25
10 10
35
8
10
60
6
10
10
14 14
15
14 14
15
14 14
25
10 10
Minimum
Circuit Ampacity
Maximum
External Fuse Field Power
or
Wire Size
Ckt. Breaker
Ckt. Ckt. Ckt. Ckt. Ckt. Ckt. ABABAB
57 26 60 30 6 10 58 26 60 30 6 10
Ground Wire Size Ckt. Ckt. AB
10 10
10 10
These "Minimum Circuit Ampacity" values are to be used for sizing the field power conductors. Refer to the National Electrical code (latest version), Article 310 for power conductor sizing. CAUTION: When more than one field power circuit is run through one conduit, the conductors must be derated. Pay special attention to note 8 of Table 310 regarding Ampacity Adjustment Factors when more than three (3) current carrying conductors are in a raceway.
Maximum size of the time delay fuse or circuit breaker for protection of field wiring conductors. Based on 75°copper wire. All wiring must conform to the National Electrical Code and all local codes.
NOTE: The Maximum Overcurrent Protection (MOCP) value listed is the maximum value as per UL 1995 calculations for MOCP (branchcircuit conductor sizes in this chart are based on this MOCP). The actual factory-installed overcurrent protective device (circuit breaker) in this model may be lower than the maximum UL 1995 allowable MOCP value, but still above the UL 1995 minimum calculated value or Minimum Circuit Ampacity (MCA) listed.
IMPORTANT: While this electrical data is presented as a guide, it is important to electrically connect properly sized fuses and conductor wires in accordance with the National Electrical Code and all local codes.
Manual 2100-713C Page 16 of 44
TABLE 1B Electrical Specifications - W**LBP Series - 60Hz Units
Single Circuit
Multiple Circuit
Model
W18LBPA00, A0Z A05 A08 A10
W24LBPA00, A0Z A05 A08 A10
W24LBPB00, B0Z B06
W30LBPA00, A0Z A05 A08 A10 A15
W30LBPB00, B0Z B09 B15
W30LBPC00, C0Z C09 C15
W36LBPA00, A0Z A05 A10 A15
W36LBPB00, B0Z B09 B15
W36LBPC00, C0Z C09 C15
Rated Volts & Phase
230/208-1
230/208-1 230/208-3 230/208-1
230/208-3 460-3
230/208-1 230/208-3
460-3
No.
Field
Power Minimum
Circuits Circuit
Ampacity
1
16
1
30
1
45
1
56
1
21
1
30
1
46
1
56
1
15
1
23
1
23
1
31
1
46
1
57
1 or 2
83
1
17
1
32
1
50
1
9
1
16
1
25
1
27
1
32
1
58
1 or 2
84
1
20
1
33
1
51
1
9
1
15
1
24
Maximum Field
External Power Ground
Fuse or Wire Wire
Ckt. Brkr. Size
20
12
12
30
10
10
50
8
10
60
6
10
25
10
10
35
8
10
50
8
10
60
6
10
20
12
14
25
10
10
35
8
10
35
8
10
50
8
10
60
6
10
90
4
8
20
12
12
35
8
10
50
8
10
10
14
14
20
12
12
25
10
10
40
8
10
40
8
10
60
6
10
90
4
8
25
10
10
35
8
10
60
6
10
10
14
14
15
14
14
25
10
10
Minimum
Circuit Ampacity
Maximum
External Fuse Field Power
or
Wire Size
Ckt. Breaker
Ckt. Ckt. Ckt. Ckt. Ckt. Ckt. ABABAB
57 26 60 30 6 10 58 26 60 30 6 10
Ground Wire Size Ckt. Ckt. AB
10 10
10 10
TABLE 2 Electrical Specifications - W**ABE Series
Model
Rated Volts & Phase
No. Field Power Circuits
Single Circuit
Minimum
Circuit Ampacity
Maximum
External Field Power
Fuse or Ckt. Wire Size
Brkr.
Ground
Wire
Minimum
Circuit Ampacity
Multiple Circuit
Maximum External Fuse or Ckt. Breaker
Field Power
Wire Size
Ground Wire Size
Ckt. A Ckt. B Ckt. A Ckt. B Ckt. A Ckt. B Ckt. A Ckt. B
W36ABE, A15 230/208-1 1 or 2
103
110
2
6
52 51 60 60
6
6
10 10
B15 230/208-3 2
N/A
N/A
N/A
N/A
45 18 50 20
8
12 10 12
C15 460-3
1
34
35
8
10
These "Minimum Circuit Ampacity" values are to be used for sizing the field power conductors. Refer to the National Electrical code (latest version), Article 310 for power conductor sizing. CAUTION: When more than one field power circuit is run through one conduit, the conductors must be derated. Pay special attention to note 8 of Table 310 regarding Ampacity Adjustment Factors when more than three (3) current carrying conductors are in a raceway.
Maximum size of the time delay fuse or circuit breaker for protection of field wiring conductors.
Based on 75°copper wire. All wiring must conform to the National Electrical Code and all local codes.
NOTE: The Maximum Overcurrent Protection (MOCP) value listed is the maximum value as per UL 1995 calculations for MOCP (branchcircuit conductor sizes in this chart are based on this MOCP). The actual factory-installed overcurrent protective device (circuit breaker) in this model may be lower than the maximum UL 1995 allowable MOCP value, but still above the UL 1995 minimum calculated value or Minimum Circuit Ampacity (MCA) listed.
IMPORTANT: While this electrical data is presented as a guide, it is important to electrically connect properly sized fuses and conductor wires in accordance with the National Electrical Code and all local codes.
Manual 2100-713C
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TABLE 3A Electrical Specifications - W**ABP Series - 50Hz Units
Model
Rated Volts & Phase
W24ABPD00, D0Z D05 D08
W24ABPF00, F0Z F05
W30ABPD00, D0Z D05 D10
W30ABPF00, F0Z F07 F12
W36ABPD00, D0Z D05 D10
W36ABPE00, E0Z E06 E12
W36ABPF00, F0Z F07 F12
240/220-1 415/380-3
240/220-1 415/380-3
240/220-1 230/200-3 415/380-3
Operating Voltage Range
254-198 456-342 254-198
456-342
254-198
242-180
456-342
No. Field Power Circuits
1 1 1
1 1
1 1 1
1 1 1
1 1 1
1 1 1
1 1 1
Single Circuit
Minimum Circuit
Ampacity
15 28 44
10 11
15 28 54
10 16 26
17 28 54
17 21 39
10 14 22
Maximum External Fuse or Ckt. Brkr.
20 30 45
15 15
20 30 60
15 20 30
25 30 60
25 25 40
15 15 25
TABLE 3B Electrical Specifications - W**LBP Series - 50Hz Units
Model
Rated Volts & Phase
W24LBPF00, F0Z F05
W30LBPF00, F0Z F07 F12
W36LBPF00, F0Z F07 F12
415/380-3 415/380-3 415/380-3
Operating Voltage Range
456-342
456-342
456-342
No. Field Power Circuits
1 1 1 1 1 1 1 1
Single Circuit
Minimum Circuit
Ampacity
10 11
10 16 26
10 14 22
Maximum External Fuse or Ckt. Brkr.
15 15
15 20 30
15 15 25
These "Minimum Circuit Amp" values are to be used for sizing the field power conductors. Maximum size of the time delay fuse or "D" rated circuit breaker for protection of field wiring conductors. 415/380-3 Electrical Ratings are 3-phase wye (star) systems requiring three (3) phase legs plus neutral and ground.
NOTE: The indoor and outdoor motors and 24V transformer primary are connected at 240V derived from one (1) phase leg to neutral. This is internally connected and no field wiring required.
NOTE: All wiring must conform to NIC/EIC latest edition.
NOTE: The Maximum Overcurrent Protection (MOCP) value listed is the maximum value as per UL 1995 calculations for MOCP (branch-circuit conductor sizes in this chart are based on this MOCP). The actual factory-installed overcurrent protective device (circuit breaker) in this model may be lower than the maximum UL 1995 allowable MOCP value, but still above the UL 1995 minimum calculated value or Minimum Circuit Ampacity (MCA) listed.
IMPORTANT: While this electrical data is presented as a guide, it is important to electrically connect properly sized fuses and conductor wires in accordance with the National Electrical Code and all local codes.
Manual 2100-713C Page 18 of 44
PRELIMINARY START UP
Running in Orphan Mode
With the AC breakers turned on, each MULTI-TEC wall-mount unit has the capability to run without the LC6000 controller or PGD connected--this feature is called orphan mode. This keeps the shelter between 60°F and 77°F (factory default settings) by the use of the factory-installed return air sensor in each wallmount unit. In orphan mode, the wall unit uses a continuous blower setting to circulate room air into the return air inlet and uses the return air temperature sensor to control room temperature.
The wall-mount unit can be turned on and off with the TEC-EYE hand-held diagnostic tool. When ON is chosen, the wall-mount unit will heat or cool. When set to OFF using the TEC-EYE, the wall-mount unit will not heat, cool or ventilate.
To turn the unit on or off with TEC-EYE:
1. Connect the TEC-EYE diagnostic tool to the control board located in the unit.
2. Press MENU key to go to the Main Menu screen.
3. Press UP or DOWN keys and ENTER key to enter USER password 2000.
4. Press UP or DOWN keys to scroll to On/Off; press ENTER key.
5. Press UP or DOWN keys to change value from On to Off or from Off to On.
6. Press ESCAPE key several times to return to Main Menu screen.
To verify or change the wall-mount unit cooling and heating setpoints in orphan mode:
1. Connect the TEC-EYE diagnostic tool to the control board located in the unit.
2. From the Status screen, press UP or DOWN key until Quick Menu displays Setpoints (SET) icon. Press ENTER key.
3. Press ENTER key to scroll to the selected choice (see Figure 11).
4. Press UP or DOWN key on desired value until value displays correctly.
5. Press ENTER key to save and scroll to next parameter.
6. Press ESCAPE key until Main Menu screen is displayed.
FIGURE 11 Cooling and Heating Setpoints
During installation, the ability to run in orphan mode allows deactivation of one of the existing, older wallmount units, while keeping the shelter cool with the other unit still operating. Once the first of the Bard MULTI-TEC wall-mount units is installed, orphan mode can be enabled early in the installation--keeping the climate inside the shelter stable and the installers comfortable while the remainder of the older equipment is removed and the remaining Bard MULTI-TEC wallmount units and LC6000 controller are installed. Additionally, should any or all of the MULTI-TEC wallmount units lose communication with the LC6000 controller (such as during maintenance), they will continue to serve the shelter's needs until a repair can be made. NOTE: Screenshots shown in this manual reflect
default settings (when applicable).
Manual 2100-713C
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LC6000 CONTROLLER INSTALLATION
FIGURE 12 Typical LC6000-200 Component Location
Transformer
RJ11 Cable to Display
Ethernet Cable Connection
Four Fused Power Supply
Terminals Emergency Off Alarm Jumper Emergency Vent Alarm Jumper Generator Run Alarm Jumper
Control Board USB Male A to Micro Male B Cable
Terminal Block
Manual 2100-713C Page 20 of 44
! WARNI NG
Electrical shock hazard.
Disconnect VAC power supplies before servicing.
Failure to do so could result in electric shock or death.
IMPORTANT: When working with circuit board components, Bard recommends the use of an anti-static wrist strap to prevent static electricity shorts to electronic controls.
LC6000 Controller
The LC6000 controller is part of this air conditioning system. It is used to control up to 14 wall-mount air conditioners from one controller. The microprocessor control provides an easy-to-read interface with large LCD graphical display. It provides control for redundancy for the structure and equal wear on all units.
Conduit is recommended for all wiring. Route communication wiring and power supply wiring in their own separate conduits.
The LC6000 controller is not weatherproof and is intended for use in a weathertight structure.
Mounting the LC6000 Controller
The dimensions of the LC controller are 16" x 12" x 6".
Because the LC6000 controller utilizes a remote temperature sensor as opposed to one located in the controller box, the controller itself can be installed in any indoor location that is suitable, preferably at eye level. Four (4) mounting holes are provided for mounting to the wall and holes for conduit connections are provided in the base, sides and top of the controller.
The LC6000 controller includes four fused power supply terminals in the terminal block. Before connecting wires to the terminal block, confirm that the fuse in each of the four fuse holders is in the proper position (active) as shown in Figure 13.
FIGURE 13 LC6000 Fused Power Supply Terminal
Fuse in Active Position
Shipping Position
Manual 2100-713C
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Installing Remote Indoor Temperature/Humidity Sensor(s)
One remote indoor temperature/humidity sensor and 35' of 18 gauge 5-conductor shielded cable is included with the controller. This sensor must be installed for proper operation. Mount the temperature/humidity sensor in a location least likely to be affected by open doors, rack-mounted fans, radiant heat sources, etc. Locating the sensor between both return grilles is often the best location, but every installation is unique. Location height should be approximately 60" above the floor. The sensor should be installed on a 2" x 4" junction box to allow for control wire conduit. Use shielded cable to connect to controller. The maximum cable length to connect the temperature/humidity sensor to the LC6000 is 98'.
FIGURE 14 Remote Indoor Temperature/Humidity Sensor Installation
1. Connect wires from the 18 gauge shielded cable to terminals #12, #13, #18, #19 and #22.
TB#
Wire Mark
Sensor
Description
18 B6 NTC OUT Indoor Remote Sensor (Zone 1)
19 GND NTC OUT Ground
12 B2 OUT H Remote Indoor Humidity Sensor: 0-1 VDC (Zone 1)
13 GND M (GO) Ground 22 +VDC + (G) Power for B2
7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 4142 43 44 45 46 47
2. Connect the other end of the shielded cable to the sensor terminals. Be sure wires are connected to proper terminals as shown in table above. Sensor jumpers need to be positioned for 0-1 V. With sensor oriented as shown in image to right, move both jumpers to right position (DP1 and DP2 set to OFF). This applies to all indoor temperature/humidity sensors connected to the LC controller. See illustration mounted inside of sensor cover for further detail on jumper position. Earlier versions of this sensor may be mounted in a different orientation which would affect the positioning of the sensor jumpers. See page 44 for additional information on sensor orientation.
Manual 2100-713C Page 22 of 44
Jumper
DP1 DP2
For proper operation, the remote indoor temperature/humidity sensor (and any additional sensors) must be configured properly with the controller as shown in Step 2 on page 22. An additional remote indoor temperatureonly sensor can be purchased and installed in Zone 1. If the site in which the LC6000 controller will be used has more than one zone (maximum three zones per LC6000), additional remote temperature/humidity sensors (one per zone) will need to be purchased and installed in the additional zones. All installed sensors must be enabled in the controller menu (see Configure Sensors beginning on page 37).
FIGURE 15 Additional Remote Temperature and Temperature/Humidity Sensor Installation
One additional temperature sensor can be added to Zone 1 and additional temperature/humidity sensors may be added to Zones 2 and 3 (one per zone). Be sure the sensors are connected to the proper terminals on the terminal block and sensor as listed below. The maximum cable length to connect temperature or temperature/humidity sensors to the LC6000 is 98'.
Zone 1: Optional Remote Temperature Sensor Terminals 20 & 21*
TB#
Wire Mark
Description
20 B7 Indoor Remote Sensor (Zone 1 optional)
21 GND Ground
* The two wire connections for the optional remote temperature sensor are not polarity sensitive.
Zone 2: Optional Remote Temperature/Humidity Sensor Terminals 26, 27, 14, 15 & 23
IMPORTANT: Note jumper position in Figure 14
TB#
Wire Mark
Sensor
Description
26 B8 NTC OUT Indoor Remote Sensor (Zone 2)
27 GND NTC OUT Ground
14 B3 OUT H Remote Indoor Humidity Sensor: 0-1 VDC (Zone 2)
15 GND M (GO) Ground
23 +VDC + (G) Power for B3
Zone 3: Optional Remote Temperature/Humidity Sensor Terminals 28, 29, 16, 17 & 24
IMPORTANT: Note jumper position in Figure 14
TB#
Wire Mark
Sensor
Description
28 B9 NTC OUT Indoor Remote Sensor (Zone 3)
29 GND NTC OUT Ground
16 B4 OUT H Remote Indoor Humidity Sensor: 0-1 VDC (Zone 3)
17 GND M (GO) Ground
24 +VDC + (G) Power for B4
Zones 2 and 3 can also use temperature-only sensors in place of the temperature/humidity sensors. Zone 2 will connect to TB# 26 and 27. Zone 3 will connect to TB# 28 and 29. The wire connections for the temperature-only sensors are not polarity sensitive.
Manual 2100-713C
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Installing Optional Outdoor Temperature/Humidity Sensor One optional outdoor temperature/humidity sensor (8301-090) can be installed. Follow the manufacturer's mounting instructions. Use 18 gauge 5-conductor shielded cable to connect to controller. The maximum cable length to connect the temperature/humidity sensor to the LC6000 is 98'.
FIGURE 16 Remote Outdoor Temperature/Humidity Sensor Installation
1. Connect wires from the 18 gauge shielded cable to terminals #65, #66, #67, #70 and #71.
TB#
Wire Mark
70 B12
71 ND
Sensor
Description
4
Remote Outdoor Temperature Sensor
5
Ground
67 B11
1
Remote Outdoor Humidity Sensor: 0-10 VDC
66 GND 65 +VDC
3
Ground
2
+VDC
47 48 49 50 51 52 53 54 55 56 57 58 59 60
62 61 64 63 66 65 68 67 70 69 72 71
2. Connect the other end of the shielded cable to the sensor terminals. Be sure wires are connected to proper terminals as shown in table above.
Manual 2100-713C Page 24 of 44
Emergency Off, Emergency Ventilation and Generator Run Connections The LC6000-200 controller is shipped with emergency off, emergency ventilation and generator run contacts. There are factory-installed jumpers across terminals #6 and #7 (emergency off), #8 and #9 (emergency ventilation) and #10 and #11 (generator run). Remove the factory-installed jumpers before making the connections.
FIGURE 17 LC6000-200 Series Connection for Emergency Off, Emergency Ventilation and Generator Run (If Applicable)
3
45
6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26
Generator Run*
Emergency Ventilation*
Emergency Off*
* Normally closed (NC) contacts required. By default: Closed = No Alarm Open = Alarm
Manual 2100-713C
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Communication Wiring
Connect the communication wiring from the wall-mount units to the controller in the manner shown in Figures 18, 19 or 20. The daisy chain does not need to follow the addressing order. The communication wire should be 2-wire, 18 gauge shielded cable with drain. Any color can be used. Be sure to match "+" and "-" symbols on controller terminal blocks to prewired unit control terminal block (see Figures 22 and 23 on pages 29 and 30). Attach communication wire filters as shown in Figures 18, 19 or 20. Do not run communication wiring in same conduit as supply wiring. Route communication wiring and power supply wiring in their own separate conduits.
FIGURE 18 Communication Wiring (Daisy Chain Method)
Filter
Filter
Wall-Mount Unit
Wall-Mount Unit
LC6000 Controller
In addition to the "daisy chain" method of connecting the communication wiring shown in Figure 18, the wall-mount units can also be connected in the manner shown in Figure 19. If connecting wall-units this way, be sure to place the communication wire filters in the positions shown in Figure 19. See Figure 20 for more information on the correct placement of the communication wire filters depending on the wiring method used.
Wall-Mount Unit
FIGURE 19 Communication Wiring (Alternate Method)
LC Controller
Wall-Mount Unit
Filter
Filter
Manual 2100-713C Page 26 of 44
FIGURE 20 Placement of Communication Wire Filters (Daisy Chain and Alternate Methods)
Place filter here
Daisy Chain Wiring
Place filter here (end unit)
LC6000
Place filter here (end unit)
Unit 1
Unit 2
Unit 3
Alternate Wiring
Unit 4
Unit 5 ... up to 14 units
Place filter here (end unit)
Unit 1
Unit 2
LC6000*
Unit 3
Unit 4
Unit 5 ... up to 14 units
* LC6000 can be in any position other than start and end
NOTE: Line filters can be on either the unit or controller, whichever device is on the end of the chain. No matter how many units there are, the two end devices will only have ONE communication cable, whereas the center devices will all have TWO (as shown above). Maximum two wires in each terminal. Filters go inside the unit or controller; shown out of unit above for identification only.
Manual 2100-713C
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The steps outlined on the following pages show how to connect the communication wiring using the daisy chain method shown in Figure 18. If using the alternate method (as shown in Figure 19), the connections to the controller and each wall-mount unit will be the same but the filters need to be placed in the positions shown in Figure 20.
FIGURE 21 Communication Wiring: Termination at the Controller
1. Using the field-provided shielded cable, make a small service loop after entering the controller and attach the provided EMI filter at the intersection of the loop.
2. Connect one wire to terminal #56 (negative), the other wire to terminal #57 (positive) and the drain wire to ground terminal #60.
34 35 36 37 38 39 40 4142 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60
62
+
To Wall-Mount Unit 1 Control Board RS485
Manual 2100-713C Page 28 of 44
FIGURE 22 Communication Wiring: Termination at the First Wall-Mount Unit
Wall-Mount Unit 1 Control Board
RPSL4A8N5 R+T+ / R-T-
From LC6000 Controller
1. From the controller, extend the shielded cable through a separate conduit and route to the provided terminal block next to the wall-mount control board.
Note that the terminal block label is clearly marked "+" and "-". These connections are polarity-sensitive. Two-wire communication from control board is prewired to terminal block. Make sure to match "+" and "-" symbols on controller terminal blocks.
Wall-Mount Unit 1 Control Board
RPSL4A8N5 R+T+ / R-T-
2. Connect the wires matching the terminal designations (+/-) of the controller terminals. Leave the drain wire loose.
From LC6000 Controller
Wall-Mount Unit 1 Control Board
RPSL4A8N5 R+T+ / R-T-
3. Connect another cable in a similar fashion ("daisy chain") to route in conduit to the second wall-mount unit. Connect both drain wires with wire nut. Maximum two wires per terminal.
From LC6000 Controller
To Wall-Mount Unit 2 Control Board RS485
Manual 2100-713C
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FIGURE 23 Communication Wiring: Termination at Additional Wall-Mount Units
Wall-Mount Unit 2 14 Control Board
RPSL4A8N5 R+T+ / R-T-
1. Route the cable from the first wall-mount unit to the
From Wall-Mount Unit 1 RS485
terminal block of the second wall-mount unit. If this is
the last unit to be connected, make a small service loop
and attach EMI filter as shown.
Wall-Mount Unit 2 14 Control Board
RPSL4A8N5 R+T+ / R-T-
2. Connect the wires matching the terminal designations (+/-) of the controller terminals. Cap the loose drain with a wire nut or electrical tape.
3. Continue daisy chaining units by connecting "+" to "+", "-" to "-" and wire nutting drain together until last unit which is capped with a wire nut. Attach EMI filter as shown above at last unit. Up to 14 wall-mount units can be connected and controlled by one LC6000 controller.
From Wall-Mount Unit 1 RS485
Manual 2100-713C Page 30 of 44
Supply Wiring The LC6000 controller is powered by 120, 208 or 240 volts from the shelter. Field-supplied supply wiring should be minimum 16 gauge, maximum 14 gauge (see Figure 24). A reliable earth ground must be connected in addition to any grounding from conduit. Grounding bolts and nuts are included with the controller for this purpose; a 2 hole grounding lug must be field supplied. Install as shown in Figure 25. Failing to ground the controller box properly could result in damage to the equipment.
FIGURE 24 LC6000 Controller Circuit Install
Power
1
2
3
4 5 Input6 7 8 9 10 11 12 13 14 15 16 17 18
Ground
120 VAC Input (L1)
208V VAC Input (L1)
240V VAC Input (L1)
Power Input Common (L2 or N)
FIGURE 25 Controller Grounding Posts
A reliable earth ground must be connected in addition to any grounding from conduit. Attach earth ground to side of controller box using bolts and nuts supplied with controller and fieldsupplied 2 hole grounding lug. Failing to ground the controller box properly could result in damage to the equipment.
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TABLE 4 LC6000-200 Terminal Block Index
TB#
Wire Mark
Description
1
- 120 VAC Input
2
- 208 VAC Input
3
- 230 VAC Input
4
- Power Input Common
5
- Power Input Ground
6
DI1 Emergency Off Input
7 GND Emergency Off Common
8
DI2 Emergency Vent Input
9 GND Emergency Vent Common
10 DI3 Generator Run Input
11 GND Generator Run Common
12 B2 Zone 1 Indoor Remote Humidity Sensor
13 GND Ground
14 B3 Zone 2 Indoor Remote Humidity Sensor
15 GND Ground
16 B4 Zone 3 Indoor Remote Humidity Sensor
17 GND Ground
18 B6 Zone 1 Indoor Temperature Sensor
19 GND Ground
20 B7 Zone 1 Indoor Remote Temperature Sensor
21 GND Ground
22 VDC+ Power for B2 (Z1 Humidity)
23 VDC+ Power for B3 (Z2 Humidity)
24 VDC+ Power for B4 (Z3 Humidity)
25 VDC+ Power for B10 (Pressure)
26 B8 Zone 2 Indoor Remote Temperature Sensor
27 GND Ground
28 B9 Zone 3 Indoor Remote Temperature Sensor
29 GND Ground
30 B10 Indoor Space Pressure
31 GND Ground
32 NO1 Humidifier 1
33 C1 Common
34 NO2 Humidifier 2
35 C1 Common
36 NO3 Humidifier 3
37 C1 Common
38 NO4 Emergency Off Alarm
TB#
Wire Mark
39 C4 Common
Description
40 NO5 Emergency Vent Alarm
41 C4 Common
42 NO6 Generator Run Alarm
43 C4 Common
44 NO7 Indoor Humidity Alarm
45 C7 Common
46 NO8 High Indoor Temperature Alarm
47 C8 Common
48 NO9 Low Indoor Temperature Alarm
49 C8 Common
50 NO10 Zone 1 Unit Alarm
51 C8 Common
52 NO11 Zone 2 Unit Alarm
53 C8 Common
54 NO12 Zone 3 Unit Alarm
55 C8 Common
56
FB1R-
RS485 RX- / TX- (Fieldbus 1) UNIT CONNECTION
57
FB1R+
RS485 RX+ / TX- (Fieldbus 1) UNIT CONNECTION
58 FB2R- RS485 RX- / TX- (Fieldbus 2)
59 FB2R+ RS485 RX+ / TX- (Fieldbus 2)
60
-- Power Input Ground
61 24 VAC+ 24 VAC Supply
62
-- Not Used
63 24 VAC+ 24 VAC Supply
64 24 VAC- 24 VAC Ground
65 24 VAC+ 24 VAC Supply for Outdoor Humidity Sensor
66 24 VAC- 24 VAC Ground for Outdoor Humidity Sensor
67 B11 Signal for Outdoor Humidity Sensor
68 24 VAC+ 24 VAC Supply
69 D14 Bard Guard Alarm Signal
70 B12 Signal for Outdoor Temperature Sensor
71 GND Ground for Outdoor Temperature Sensor
72 GND Ground for Bard Guard Alarm Signal
73
G Orange Power Connector
74 24 VAC+ 24 VAC Supply
75 G0 Orange Power Connector
76 24 VAC- 24 VAC Ground
Manual 2100-713C Page 32 of 44
FIGURE 26 LC6000-200 Wiring Diagram
74 73 76 75
LC6000 TERMINAL BLOCK
(L1) 12012V0VININ (L1) 20820V8VININ (L1) 23023V0VININ (L2 OR N) COMCOMMOMNONININ
POWER GGNNDD
EMER OFF JUMPER
EMER VENT JUMPER GEN JUMPER
UNIT MODBUS CONNECTORS
GROUND
6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60
45
3
2
1
WHITE
RED
ORANGE
BLACK GREEN
RED
DI1
RED
DI2
RED
DI3
RED
B2
RED
B3
RED
B4
RED
B6
TB 6 TB 8 TB 10 TB 69
RED
B7
GREEN
BLK/RED
RED
B8
RED
B9
GND +Vdc
TB 12 TB 14 TB 16
TB 18 TB 20
GND
RED GREEN BLUE/BLK
B10 NO1
BLUE/BLK NO2
BLUE/BLK BLACK BLUE/BLK
NO3 C1 NO4
BLUE/BLK NO5
TB 26 TB 28 TB 30 TB 67 TB 70
BLUE/BLK BLACK BLUE/BLK BLACK BLUE/BLK
NO6 C4 NO7 C7 NO8
GND
BLUE/BLK NO9
BLUE/BLK NO10
BLUE/BLK NO11
BLUE/BLK NO12
BLACK
C8
ORANGE/BLK 1-RX-TX-
ORANGE BROWN/BLK
1-RX+TX+ 2-RX-TX-
BROWN
2-RX+TX+
GROUND
EMPTY YELLOW BLUE
G 24 VAC TB74 G0 24 VAC TB76
RED
B11
RED
B12
RED
DI4
GREEN
TB 61 TB 64
YELLOW G YELLOW BLUE G0 BLUE
120V/208V/230VAC TRANSFORMER
24VAC
YELLOW BLUE
TB74 TB76
G G0
24VAC INPUT
TO BOARD
R X-TXR X+ TX+ GND R X-TXR X+TX+ GND
TB 59 TB 58
TB 57 TB 56
TB 37 TB 32 TB 34 TB 36
C4
TB 43
TB 38
TB 40
TB 42
PLC BOARD
TB 44 TB 45
TB 55 TB 46 TB 48 TB 50 TB 52 TB 54
NOTE:
Wire indexes are identified such that even numbered index numbers are on the lower wire entries of the terminal block and odd numbered index numbers are on the top wire entries. Since terminal block 60 is a ground block, terminal blocks 61 thru 72 shift while still maintaining the same top and bottom configuration.
62 61 64 63 66 65 68 67 70 69 72 71
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SYSTEM SET UP
NOTE: Screenshots shown in this manual reflect default settings (when applicable).
The LC6000 controller and TEC-EYE hand-held diagnostic tool will both be used to set up the Bard air conditioning system (the TEC-EYE is only used to set up the wall-mount units). If installing a single MULTI-TEC wall-mount unit with a PGD stand-alone display or thTune single-unit controller, refer to PGD manual 2100734 or th-Tune manual 2100-678 for information on setting up a PGD or th-Tune for single unit operation.
TABLE 5 LC6000/TEC-EYE Passwords (Defaults)
User
2000
Technician
1313
Engineer
9254
Use UP or DOWN keys and ENTER key to enter password
Main Menu. The menus permit the user to easily view, control and configure the unit. See the latest version of MULTI-TEC Service Manual 2100-712 for more information on using the TEC-EYE.
The TEC-EYE connects to the wall-mount unit control board via an RJ11 modular connector as shown in Figure 27.
When not being used, the TEC-EYE hand-held diagnostic tool should be stored inside or near the LC6000 controller. Do not let the TEC-EYE leave the shelter.
FIGURE 27 TEC-EYE Connection to Unit Control
TEC-EYE Hand-Held Diagnostic Tool
The microprocessor control used in the MULTI-TEC wall-mount air conditioners allows for complete control and monitoring through the use of the provided TECEYE hand-held monitor.
The menu driven interface provides users the ability to scroll through two menu levels: Quick Menu and
Modular Connector for TEC-EYE Hand-Held Diagnostic Tool
FIGURE 28 TEC-EYE (Bard P/N 8301-059) Display and Interface (Status Screen Shown)
ALARM KEY
UP KEY
MENU KEY
ENTER KEY
ESCAPE KEY
ALARM KEY Allows viewing of active alarms Silences audible alarms Resets active alarms MENU KEY Allows entry to Main Menu ESCAPE KEY Returns to previous menu level Cancels a changed entry
Manual 2100-713C Page 34 of 44
DOWN KEY
UP KEY Steps to next screen in the display menu Changes (increases) the value of a modifiable field ENTER KEY Accepts current value of a modifiable field Advances cursor DOWN KEY Steps back to previous screen in the display menu Changes (decreases) the value of a modifiable field
TEC-EYE Status Screen
The Status screen is the default start-up screen and also the return screen after 5 minutes of no activity. The screen can be accessed any time by pressing the ESCAPE key repeatedly.
The wall-mount unit address is displayed in the upper right corner on the Status screen (see Figure 28). The Status screen also shows the current date, time, return air temperature, mixed air temperature, outdoor air temperature, outdoor humidity and outdoor dew point conditions. Blower, damper and unit status are also displayed. See Table 6 on page 43 for wall-mount unit status messages.
recommends physically labeling each unit for ease in identification.
FIGURE 29 Unit Configuration
NOTI CE
It is important to check the software version during installation to ensure that the latest version has been installed. Current software versions and installation instructions are available on the Bard website at http://www. bardhvac.com/software-download/
Setting Up Wall-Mount Units for Operation
The TEC-EYE hand-held diagnostic tool is needed to set up the wall-mount unit(s).
1. Address Each Wall-Mount Unit
Each unit must have a unique address for the system to operate correctly with the LC controller (Ex: 1, 2, 3, ...14 depending on the number of units). The unit only needs the address to be changed for the communication to work properly. The wall-mount unit address is displayed in the upper right corner on the Status screen on the TEC-EYE display (see Figure 28).
To change the unit address:
1) Press MENU key to access the Main Menu screen.
2) Press UP or DOWN keys and ENTER key to enter USER password 2000.
3) Press UP or DOWN keys to scroll to Sys Config; press ENTER key.
4) Press ENTER key to scroll to Unit Address (see Figure 29).
5) Press UP or DOWN keys to change the address to a value between 1 and 14.
NOTE: Each unit must have a unique address for the communication to work properly. Bard also
In addition to setting up the address, the user may also want to set the unit zone and unit of measure. Unit addresses can only be used once per LC6000 regardless of number of zones.
To change these settings:
1) Press MENU key to access the Main Menu screen.
2) Press UP or DOWN keys and ENTER key to enter USER password 2000.
3) Press UP or DOWN keys to scroll to Sys Config; press ENTER key.
4) Press ENTER key to scroll to Unit Zone (see Figure 29).
5) If desired, press UP or DOWN keys to change value to desired zone.
6) Press ENTER scroll to UOM.
7) If desired, press UP or DOWN keys to change the value from USA to SI, NC, LON, CAN or UK. Units are preconfigured for each selection.
8) Press ENTER key to save.
Basic wall unit parameter settings are now set and the unit is ready to communicate with the LC.
2. Execute a Run Test on Each Unit
Execute a run test on each unit to verify the equipment is functioning correctly. The run test parameters are not adjustable.
1) Press MENU key to access the Main Menu screen.
2) Press UP or DOWN keys and ENTER key to enter USER password 2000.
3) Press UP or DOWN keys to scroll to Sys Config; press ENTER key.
4) Press UP or DOWN keys to scroll to Run Test A11 screen.
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5) Press ENTER key to scroll to Run Test Enable parameter (see Figure 30).
6) Press UP or DOWN key to change value to ON. The run test will begin.
FIGURE 30 Executing Run Test
Step Action A Open economizer damper B Close economizer Damper C Turn on compressor D Enable second stage E Open reheat valve F Turn all cooling off G Turn on electric heat H Turn on electric heat stage 2 I Turn off all heating
Time Required Damper Time (150s) Damper Time (150s) Heat/Cool Time (60s) Heat/Cool Time (60s) Heat/Cool Time (60s) -Heat/Cool Time (60s) Heat/Cool Time (60s) --
Parameter Description
Damper Time: This is the time (in seconds) allowed for both the opening sequence and closing sequence.
Heat/Cool Time: This is the time (in seconds) allowed for cooling sequence and heating sequence.
Status: This will display what the unit is doing as the run test progresses. The following messages may appear:
1. Not Active 2. Opening Damper 3. Closing Damper 4. Compressor Stage 1 5. Compressor Stage 2 6. Reheat Valve Open 7. Cooling Off 8. Electric Heat Stage 1 9. Electric Heat Stage 2 10. Heating Off 11. Run Test Stop
The unit will determine which items to test based on the unit model number.
Manual 2100-713C Page 36 of 44
3. Clear Unit Alarm Logs on Each Unit Units may have alarms logged due to testing. Unit alarm logs must be cleared at time of installation. To clear the wall-mount unit alarm logs: 1) Press MENU key to go to the Main Menu screen. 2) Use UP or DOWN keys and ENTER key to enter TECHNICIAN password 1313. 3) Press UP or DOWN keys to scroll to Settings; press ENTER key. 4) Press UP or DOWN keys to scroll to Initialization; press ENTER key. 5) Press UP or DOWN keys to scroll to Initialization 1/5; press ENTER key. 6) Press ENTER key to scroll to Delete alarm logs? (see Figure 31). 7) Press UP or DOWN key to change NO to YES. 8) Press ENTER key to clear all alarm logs.
FIGURE 31 Clearing Unit Alarm Logs
After each of the wall-mount units have been addressed, had a run test performed and had the alarm logs cleared, the rest of the system set up can proceed.
Setting Up LC6000 for Operation
The LC6000 controller will be used for the remaining steps in the set up process. LC6000 Status Screen The Status screen is the default start-up screen and also the return screen after 5 minutes of no activity on the LC6000. The screen can be accessed any time by pressing the ESCAPE key repeatedly. The Status screen on the LC6000 displays the current date, time, unit displayed, zones and system status (see Figure 34). 4. Set LC Controller Date and Time
1) Press MENU key to access the Main Menu screen.
2) Use UP or DOWN keys and ENTER key to enter USER password 2000.
3) Press the UP or DOWN keys to scroll to the Settings menu; press ENTER key.
4) Press UP or DOWN keys to scroll to Date/Time menu; press ENTER key.
5) Press UP or DOWN keys to scroll to Date/Time change.
6) Press ENTER key to scroll to the desired value to be changed (see Figure 32).
7) Press UP or DOWN keys to change the value.
8) Press ENTER key to save and to scroll to top of screen.
9) Press UP or DOWN keys to scroll to Timezone (if applicable). Follow steps 6-8 to change timezone.
10) Press ESCAPE key several times to return to Main Menu screen.
NOTE: The LC6000 will sync the time and date configured to each of the wall-mount units once communication is established.
FIGURE 32 Setting Controller Date and Time
Additional combination sensors may be purchased or alternatively, temperature-only sensors may be purchased instead. The LC is capable of utilizing five temperature sensors and four humidity sensors. The system will need to be configured for the various configurations.
If necessary, the sensors could be calibrated at this time too. For information on calibrating the sensors (adjusting the offset), see page 42.
To enable/disable Zone 1 Indoor Humidity:
1) Press MENU key to go to the Main Menu screen.
2) Press UP or DOWN keys and ENTER key to enter USER password 2000.
3) Press UP or DOWN keys to scroll to IO Config; press ENTER key.
4) Press UP or DOWN keys to scroll to Z1 Indoor Hum C4.
5) Press ENTER key to scroll to Enable (see Figure 33).
6) Press UP or DOWN key to change value to ON to enable sensor (or change value to OFF to disable sensor).
FIGURE 33 Enable/Disable Zone 1 Indoor Humidity Sensor
5. Configure Sensors
The system will need to be configured for the number of temperature and humidity sensors installed. The system is shipped with one combination temperature and humidity sensor.
FIGURE 34 LC6000 Controller Display and Interface (Status Screen Shown)
ALARM KEY MENU KEY ESCAPE KEY
UP KEY ENTER KEY DOWN KEY
LC6000 interface key functions are the same as those shown for the TEC-EYE in Figure 28 on page 34.
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To enable/disable Zone 2 Indoor Humidity:
1) Press MENU key to go to the Main Menu screen.
2) Press UP or DOWN keys and ENTER key to enter USER password 2000.
3) Press UP or DOWN keys to scroll to IO Config; press ENTER key.
4) Press UP or DOWN keys to scroll to Z2 Indoor Hum C5.
5) Press ENTER key to scroll to Enable (see Figure 35).
6) Press UP or DOWN key to change value to ON to enable sensor (or change value to OFF to disable sensor).
FIGURE 35 Enable/Disable Zone 2 Indoor Humidity Sensor
6) Press UP or DOWN key to change value to ON to enable sensor (or change value to OFF to disable sensor).
To enable/disable Zone 1 Indoor Temperature:
1) Press MENU key to go to the Main Menu screen.
2) Use UP or DOWN keys and ENTER key to enter USER password 2000.
3) Press UP or DOWN keys to scroll to IO Config; press ENTER key.
4) Press UP or DOWN keys to scroll to Z1 Indoor Temp C7.
5) Press ENTER key to scroll to Enable (see Figure 37).
6) Press UP or DOWN key to change value to ON to enable sensor (or change value to OFF to disable sensor).
FIGURE 37 Enable/Disable Zone 1 Indoor Temperature Sensor
To enable/disable Zone 3 Indoor Humidity:
1) Press MENU key to go to the Main Menu screen.
2) Press UP or DOWN keys and ENTER key to enter USER password 2000.
3) Press UP or DOWN keys to scroll to IO Config; press ENTER key.
4) Press UP or DOWN keys to scroll to Z3 Indoor Hum C6.
5) Press ENTER key to scroll to Enable (see Figure 36).
FIGURE 36 Enable/Disable Zone 3 Indoor Humidity Sensor
To enable/disable Zone 1 Remote Temperature:
1) Press MENU key to go to the Main Menu screen.
2) Use UP or DOWN keys and ENTER key to enter USER password 2000.
3) Press UP or DOWN keys to scroll to IO Config; press ENTER key.
4) Press UP or DOWN keys to scroll to Z1 Remote Temp C8.
5) Press ENTER key to scroll to Enable (see Figure 38).
6) Press UP or DOWN key to change value to ON to enable sensor (or change value to OFF to disable sensor).
Manual 2100-713C Page 38 of 44
FIGURE 38 Enable/Disable Zone 1 Remote Temperature Sensor
6) Press UP or DOWN key to change value to ON to enable sensor (or change value to OFF to disable sensor).
FIGURE 40 Enable/Disable Zone 3 Remote Temperature Sensor
To enable/disable Zone 2 Remote Temperature:
1) Press MENU key to go to the Main Menu screen.
2) Use UP or DOWN keys and ENTER key to enter USER password 2000.
3) Press UP or DOWN keys to scroll to IO Config; press ENTER key.
4) Press UP or DOWN keys to scroll to Z2 Remote Temp C9.
5) Press ENTER key to scroll to Enable (see Figure 39).
6) Press UP or DOWN key to change value to ON to enable sensor (or change value to OFF to disable sensor).
FIGURE 39 Enable/Disable Zone 2 Remote Temperature Sensor
To enable/disable Outdoor Air Humidity:
1) Press MENU key to go to the Main Menu screen.
2) Use UP or DOWN keys and ENTER key to enter USER password 2000.
3) Press UP or DOWN keys to scroll to IO Config; press ENTER key.
4) Press UP or DOWN keys to scroll to Outdoor Air Humid C11.
5) Press ENTER key to scroll to Enable (see Figure 41).
6) Press UP or DOWN key to change value to ON to enable sensor (or change value to OFF to disable sensor).
FIGURE 41 Enable/Disable Outdoor Air Humidity Sensor
To enable/disable Zone 3 Remote Temperature:
1) Press MENU key to go to the Main Menu screen.
2) Use UP or DOWN keys and ENTER key to enter USER password 2000.
3) Press UP or DOWN keys to scroll to IO Config; press ENTER key.
4) Press UP or DOWN keys to scroll to Z3 Remote Temp C10.
5) Press ENTER key to scroll to Enable (see Figure 40).
To enable/disable Outdoor Air Temperature:
1) Press MENU key to go to the Main Menu screen.
2) Use UP or DOWN keys and ENTER key to enter USER password 2000.
3) Press UP or DOWN keys to scroll to IO Config; press ENTER key.
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4) Press UP or DOWN keys to scroll to Outdoor Air Temp C12.
5) Press ENTER key to scroll to Enable (see Figure 42).
6) Press UP or DOWN key to change value to ON to enable sensor (or change value to OFF to disable sensor). FIGURE 42
Enable/Disable Outdoor Air Temperature
6. Enter Total Number of Units 1) Press MENU key to go to the Main Menu screen. 2) Press UP or DOWN keys and ENTER key to enter USER password 2000. 3) Press UP or DOWN keys to scroll to Sys Config; press ENTER key. 4) Press UP or DOWN keys to scroll to General; press enter key. 5) Press ENTER key to scroll to Total Units (see Figure 43). 6) Press UP or DOWN keys to adjust value to correct number of units. 7) Press ENTER key to save value. 8) Press the ESCAPE key several times to return to Main Menu screen. FIGURE 43 Total Units Displayed
7. Verify Units Are Online
Once a unit is uniquely addressed, communication can be verified at the LC controller.
With the correct number of units set at the LC controller, each unit can be remotely viewed from the controller information screen.
To view these screens:
1) Press ESCAPE key to view the Status screen. (May need to be pressed more than once.)
2) Press UP or DOWN key until the Quick Menu in
the lower right corner of the screen displays the
Information icon (
); press ENTER key.
3) Press UP or DOWN keys to scroll through the Information screens until the desired unit Information screen appears.
In addition to being able to remotely view the units, an alarm will be generated on the LC controller for units not communicating.
8. Select Economizer Type for Each Zone
Each zone can be configured to operate the economizers with different considerations. For more information on the different economizer choices, reference the most recent version of MULTI-TEC Service Instructions 2100-712.
The type of consideration can be set to none, dry bulb, temperature and humidity or enthalpy. These settings will be communicated to the wall units while connected to the LC6000 to ensure all units operate the same.
To select economizer type for each zone:
1) Press MENU key to go to the Main Menu screen.
2) Use UP or DOWN keys and ENTER key to enter password 1313.
3) Press UP or DOWN keys to scroll to Sys Config; press ENTER key.
4) Press UP or DOWN keys to scroll to Zone 1, Zone 2 or Zone 3; press ENTER key.
5) Press UP or DOWN keys to scroll to Zone FC Settings A2-4 (Zone 1), Zone FC Settings A3-4 (Zone 2) or Zone FC Settings A4-4 (Zone 3).
6) Press ENTER key to scroll to Type (see Figure 44).
7) Press UP or DOWN keys to change economizer type to None, Drybulb, TempHum or Enthalpy.
8) Press ENTER key to save.
Manual 2100-713C Page 40 of 44
FIGURE 44 Selecting Economizer Type
10. Complete Installation
Once all the installation steps have been completed, all alarms and alarm logs have been cleared and system verification and run test results were satisfactory, the installation can now be considered "complete".
Additional programming information can be found in MULTI-TEC Service Instructions 2100-712 and LC6000 Service Instructions 2100-669.
9. Clear Controller Alarm Logs
The LC6000 controller may have alarms logged due to bench testing. Controller alarm logs must be cleared at time of installation.
To clear the LC controller alarm logs:
1) Press MENU key to go to the Main Menu screen.
2) Use UP or DOWN keys and ENTER key to enter USER password 2000.
3) Press UP or DOWN keys to scroll to Settings; press ENTER key.
4) Press UP or DOWN keys to scroll to Initialization; press ENTER key.
5) Press ENTER key to scroll to Delete alarm logs? (see Figure 45).
6) Press UP or DOWN key to value to YES; press ENTER key.
7) Press ESCAPE key several times to return to Main Menu screen.
FIGURE 45 Clearing LC6000 Alarm Logs
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ADDITIONAL INFORMATION
Menu Screens and Password Levels
MULTI-TEC Wall-Mount Units A System Config: User (2000) B Adv Sys Config: Technician (1313) C I-O Config: Technician (1313) D On/Off: User (2000) E Alarm Logs: User (2000) F Settings
Date/Time: Technician (1313) Language: User (2000) Network Config: Technician (1313) Serial Ports: Technician (1313) Initialization
Clear Logs: User (2000) System Default: Engineer (9254) Restart: User (2000) Parameter Config: Engineer (9254) Alarm Export: User (2000) G Logout: Used to log out of the current password level. Entering back into the menu requires password. LC6000 Controller A System Config General: User (2000) Zone 1: User (2000) Zone 2: User (2000) Zone 3: User (2000) B Adv Sys Config: B1-B13 Technician (1313) C I-O Config: C1-C10 Technician (1313) D On/Off: User (2000) E Alarm Logs: User (2000) F Settings Date/Time: Technician (1313) Language: User (2000) Network Config: Technician (1313) Serial Ports: Technician (1313) Initialization Clear Logs: User (2000) System Default: Engineer (9254) Restart: User (2000)
Parameter Config: Engineer (9254)
Alarm Export: User (2000)
G Logout: Used to log out of the current password level. Entering back into the menu requires password.
Setpoints
The LC6000 setpoints will be utilized as the cooling and heating setpoints when communicating with the wall-mount units. The unit cooling and heating setpoints will be used for temperature control when in orphan mode. LC6000 setpoints will sync to the wallmount unit once communication with the LC6000 is established.
If at any time the unit(s) loses communication with the LC6000 controller, the unit(s) will go into orphan mode.
Calibrating Sensors
1. Press MENU key on LC controller interface to go to the Main Menu screen.
2. Use UP or DOWN keys and ENTER key to enter USER password 2000.
3. Press UP or DOWN keys to scroll to I/O Config; press ENTER key.
4. Press UP or DOWN keys to scroll to sensor to be adjusted.
5. Press ENTER key to scroll to Offset (see Figure 46).
6. Press UP or DOWN keys to add or subtract to the sensor offset value.
7. Press ENTER key to save.
FIGURE 46 Adjusting Sensor Offset Value
Manual 2100-713C Page 42 of 44
TABLE 6 Wall-Mount Unit Status Messages
Message
Description
Invalid Model # Orphan Mode th-Tune Online
LC Online Cont. Blower Off by th-Tune Freecooling Optimized Cool
Cooling Heating Active Dehum
Passive Dehum
Run Test Off by Alarm
Off by BMS
Off by LC
Off by Keypad Emergency Vent Emergency Cool Emergency Off
Unit disabled due to faulty model number.
Unit is not currently communicating with an LC6000 or th_Tune device.
Communication with th_Tune device is established; unit in standby (no current calls).
Communication with LC6000 is established; unit in standby (no current calls).
Continuous blower is active.
Unit has been commanded off by the th_Tune.
Economizer is active.
Economizer and mechanical cooling are active.
Mechanical cooling is active.
Electric or mechanical heat is active.
Mechanical dehumidification or electric reheat dehumidification is active.
Humidity is above the passive set point; economizer disabled/blower speed reduced. See Balanced Climate Mode in MULTI-TEC Service Instructions 2100-712.
Run test in operation.
All functions/modes of operation are disabled by one the following alarms: Return Air, Emergency Off, Unit Disable or Valid Model #.
Unit has been set to off by BMS system (Modbus); all functions/ modes of operation are disabled.
Unit is commanded off by LC6000; all functions/modes of operation are disabled.
Unit has been turned off in TECEYE menu; all functions/modes of operation are disabled.
Emergency vent mode is active. See LC manual 2100-669.
Emergency cooling mode is active.
Emergency off mode is active. See LC manual 2100-669.
TABLE 7 LC6000 Status Messages
Message
Description
On
The LC6000 is ready and functioning properly.
Off by BMS
The LC6000 is being turned off by the Building Management System through Modbus TCP/IP.
Off by Keyboard
The LC6000 is turned off using the (D. On/Off) Menu on the PGD. All communicating units will be inactive.
The LC6000 is set to Comfort Mode. This mode is used to temporarily Comfort Mode override heating/cooling setpoints and maintain a default temperature of 72°F for 60 minutes.
Emergency Cooling
A high temperature has been sensed in one or more zones. All available units in that zone are sent a command for emergency cooling. (Refer to unit manual 2100-712 for emergency cooling sequence.)
Emergency Vent
Input signal from an external device at terminal DI2 (e.g., hydrogen detector). Units that are equipped with a ventilation option and configured will open the dampers at 100% with the blower at full speed. (Refer to LC manual 2100-669 for emergency vent sequence.)
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Page
43 of 44
Remote Indoor Temperature/Humidity Sensor Orientation
Current versions of the remote indoor temperature/ humidity sensor need to be installed with the shielded cable wires entering the bottom of the back of the sensor to connect to the sensor terminals (see Figure 47). Earlier versions of this sensor were installed so that the sensor wires entered through the top of the back of the sensor (see Figure 48). The orientation of the sensor affects the position of the DP1/DP2 jumpers. Depending on how the sensor is installed, be sure to confirm that the jumpers are in the proper position for the 0-1 V setting as shown in the figures below.
This applies to all indoor temperature/humidity sensors connected to the LC controller. See illustration mounted inside of sensor cover for further detail on jumper position.
FIGURE 47 Current Sensor Orientation (Shielded Cable Wires Enter from Bottom)
FIGURE 48 Earlier Sensor Orientation (Shielded Cable Wires Enter from Top)
Jumper
DP1 DP2
DP1 and DP2 Jumpers Positioned for 0-1V (Current Orientation)
Manual 2100-713C Page 44 of 44
Jumper
DP1 DP2
DP1 and DP2 Jumpers Positioned for 0-1V (Earlier Orientation)
Quick Start Guide
MULTI-TEC®/LC6000 Air Conditioning System
This quick start guide is designed to lead an installer through the steps necessary for setting up a Bard air conditioning system composed of MULTI-TEC wall-mount units paired with an LC6000 controller. See the latest versions of MULTI-TEC/LC6000 System Installation Instructions 2100-713, MULTI-TEC Service Instructions 2100-712 and LC6000 Service Instructions 2100-669 for more detailed information on the installation, service and maintenance of this Bard air conditioning system.
The TEC-EYETM hand-held diagnostic tool and LC6000 controller will both be used in this installation. The TECEYE diagnostic tool is shipped inside the controller and a cable is included to connect it to the wall-mount unit control board.
NOTI CE
It is important to check the software version during installation to ensure that the latest version has been installed. Current software versions, change log and installation instructions are available on the Bard website at http://www.bardhvac.com/ software-download/
SYSTEM SET-UP
Set up and configuration must be done to each MULTITEC wall-mount unit using the TEC-EYE hand-held diagnostic tool. Use the LC6000 controller for the remaining steps.
IMPORTANT: When working with circuit board components, Bard recommends the use of an anti-static wrist strap to prevent static electricity shorts to electronic controls.
Address each wall unit and select unit zone and unit of measure (TEC-EYE)
The address of the unit being set up will be listed in the upper right hand corner on the status screen. The available addresses are 1-14.
1. Remove outer and inner unit control panel doors.
2. Connect TEC-EYE to wall-mount unit control board.
3. Press MENU key to access the Main Menu screen.
4. Press UP/DOWN/ENTER keys to enter password 1313.
5. Press UP/DOWN keys to scroll to Sys Config; press ENTER key.
6. Press ENTER key to scroll to Unit Address.
7. Press UP/DOWN keys to change address to value between 1 and 14.
NOTE: Each unit must have a unique address for the communication to work properly. Bard also recommends labeling each unit for ease in identification.
8. Press ENTER key to save and scroll to Zone.
9. If desired, press UP/DOWN keys to change the value to the desired zone (1, 2 or 3).
10. Press ENTER key to scroll to UOM (unit of measure).
11. Press UP/DOWN keys to change the value from USA to SI, NC, LON, CAN or UK. Units are preconfigured for each selection.
12. Press ENTER key to save.
Execute a run test on each unit to verify the equipment is functioning correctly (TEC-EYE)
1. Use UP/DOWN keys to scroll to Run Test A11.
2. Press ENTER key to scroll to Run Test Enable parameter.
3. Use UP/DOWN key to change value to ON. The run test will begin.
See most recent version of Installation Instructions 2100-713 if additional information on run testing units is needed.
Clear unit alarm logs on each unit (TEC-EYE)
Units may have alarms logged due to testing. Unit alarm logs must be cleared at time of installation. To clear the wall-mount unit alarm logs:
1. Press MENU key to go to the Main Menu screen.
2. Use UP/DOWN/ENTER keys to enter password 1313.
3. Press UP/DOWN keys to scroll to Settings; press ENTER key.
4. Press UP/DOWN keys to scroll to Initialization; press ENTER key.
5. Press ENTER key to scroll to Delete alarm logs?.
6. Press UP/DOWN key to change value to YES; press ENTER key.
After first unit has been set up and configured, follow the above steps to set up and configure the remaining units.
The LC6000 controller will be used for the remaining steps in the set-up process.
Set LC Controller Date/Time (LC Controller)
1. Press MENU key to access the Main Menu screen.
2. Use UP/DOWN/ENTER keys to enter password 1313.
3. Press the UP/DOWN keys to scroll to the Settings menu; press ENTER key.
4. Press UP/DOWN keys to scroll to Date/Time menu; press ENTER key.
Manual: 2100-714 Date: 9-26-19
Supercedes: NEW Page 1 of 2
5. Press UP/DOWN keys to scroll to Date/Time change.
6. Press ENTER key to scroll to the desired value to be changed.
7. Press UP/DOWN keys to change the value.
8. Press ENTER key to save and scroll to top of screen.
9. Press UP/DOWN keys to scroll to Timezone (if applicable). Follow steps 6-8 to change timezone.
10. Press the ESCAPE key several times to return to Main Menu screen.
Configure sensors (LC Controller)
One remote temperature/humidity sensor is included with the controller. An additional remote indoor temperature sensor can be installed in Zone 1. Additional remote temperature/humidity sensors or temperature-only sensors (one per zone) can be installed in Zones 2 and 3 (if applicable). One optional outdoor temperature/humidity sensor can also be installed. The controller must be configured to match the installed sensors. The Zone 1 Indoor Humidity and Zone 1 Indoor Temperature sensors are enabled by default. The additional humidity and temperature sensors are disabled by default.
See Installation Instructions 2100-713 for information on configuring (enabling/disabling) sensors. If necessary, the sensors can be calibrated at this time too. For information on calibrating the sensors, see manual 2100-713.
See LC6000 Service Instructions manual 2100-669 for information on setting up emergency off, emergency ventilation and generator relays (if applicable).
Enter total number of units (LC Controller)
1. Press MENU key to go to the Main Menu screen.
2. Use UP/DOWN/ENTER keys to enter password 1313.
3. Press UP/DOWN keys to scroll to Sys Config; press ENTER key.
4. Press UP/DOWN keys to scroll to General; press ENTER key.
5. Press ENTER key to scroll to Total Units.
6. Press UP/DOWN keys to adjust value to correct number of units.
7. Press ENTER key to save.
Verify units are online (LC Controller)
Once a unit is uniquely addressed, communication can be verified at the LC controller.
With the correct number of units set at the LC controller, each unit can be remotely viewed from the LC Information screens.
To view these screens:
1. Press ESCAPE key to view the Status screen. (May need to be pressed more than once.)
2. Press UP/DOWN key until the Quick Menu in
the lower right corner of the screen displays the
Information icon (
); press ENTER key.
3. Press UP/DOWN keys to scroll through the Information screens until the desired unit Information screen appears.
In addition to being able to remotely view the units, an alarm will be generated on the LC controller for units not communicating.
Select economizer type for each zone (LC Controller)
Each zone can be configured to operate the economizers with different considerations. For more information on the different economizer choices, reference MULTI-TEC Service Manual 2100-712. The type of consideration can be changed to none, dry bulb, temperature and humidity or enthalpy. These settings will be communicated to the wall units while connected to the LC6000 to ensure all units operate the same.
To select free cooling type for each zone:
1. Press MENU key to go to the Main Menu screen.
2. Use UP/DOWN/ENTER keys to enter password 1313.
3. Press UP/DOWN keys to scroll to Sys Config; press ENTER key.
4. Press UP/DOWN keys to scroll to Zone 1, Zone 2 or Zone 3; press ENTER key.
5. Press UP/DOWN keys to scroll to Zone FC Settings A2-4 (Zone 1), Zone FC Settings A3-4 (Zone 2) or Zone FC Settings A4-4 (Zone 3).
6. Press ENTER key to scroll to Type.
7. Press UP/DOWN keys to change economizer type to None, Drybulb, TempHum or Enthalpy.
8. Press ENTER key to save.
Clear controller alarm logs (LC Controller)
The LC6000 may have alarms logged due to bench testing. Controller alarm logs must be cleared at time of installation. To clear the LC controller alarm logs:
1. Press MENU key to go to the Main Menu screen.
2. Use UP/DOWN/ENTER keys to enter password 1313.
3. Press UP/DOWN keys to scroll to Settings; press ENTER key.
4. Press UP/DOWN keys to scroll to Initialization; press ENTER key.
5. Press ENTER key to scroll to Delete alarm logs?
6. Press UP/DOWN key to change value to YES; press ENTER key.
7. Press ESCAPE key several times to return to Main Menu screen.
Once all the installation steps have been completed, all alarms and alarm logs have been cleared and system verification and run test results were satisfactory, the installation can now be considered "complete".
Manual: 2100-714 Page 2 of 2
REPLACEMENT PARTS MANUAL
MULTI-TEC® Wall-Mount
Air Conditioner
Models:
W30ABPA W30ABPB W30ABPC W30ABPD W30ABPF
W36ABPA W36ABPB W36ABPC W36ABPD W36ABPE W36ABPF
W36ABEA W36ABEB W36ABEC
Contents
Description
Page
Cabinet Components Exploded View ............................................. 2 Usage List ................................................... 3
Functional Components Exploded View ............................................. 4 Usage List ................................................... 5
Control Panel Layout View ................................................. 6 Usage List ................................................... 7
Blower Assembly Exploded View ............................................. 8 Usage List ................................................... 8
Freecooling Components Exploded View ............................................. 9 Usage List ................................................... 9
Description
Page
Freecooling Air Hood Exploded View ............................................ 10 Usage List .................................................. 10
Freecooling Damper Motor Exploded View ............................................ 11 Usage List .................................................. 11
General Notes
Revised and/or additional pages may be issued from time to time.
A complete and current manual consists of pages shown in the contents section.
Important
Contact the installing and/or local Bard distributor for all parts requirements. Make sure to have the complete model and serial number available from the unit rating plates.
Bard Manufacturing Company, Inc. Bryan, Ohio 43506
www.bardhvac.com
Manual: 2110-1458D
Supersedes: 2110-1458C
Date:
7-2-21
Page
1 of 11
CABINET COMPONENTS
1
2
32
3 31
4 30
5 29
6 28
7 27
8 26
9 25
10 24
11 23
12 22
13
21 20 17 19 18 33 15 14 SEXP-907 C
Manual 2110-1458D Page 2 of 11
CABINET COMPONENTS
W30ABPA, B, D W30ABPC, F W36ABPA, B, D, E W36ABPC, F W36ABEA, B W36ABEC
Dwg No.
1 1 1 2 2 2 3 3 4 4 4 5 6 6 6 7 7 7 8 9 10 10 11 12 12 12 13 13 13 14 14 14 15 17 17 18 18 19 19 20 20 22 22 22 23 23 23 24 24 24 25 25 25 26 27 28 29 29 29 30 31 32 33 33 33 NS NS NS
Part Number
113-149-* 113-360 113-149-4 S507-308-* S507-319 S507-320
S123-127 S123-141
S509-451 S509-455 S509-453
105-1302 S501-933-* S501-994 S501-937 S543-175-* S543-185 S543-184
113X480
137-259
S132-296
S132-297
113-140 S153-218 S153-405 S153-387 S533-228 S533-235 S533-236 118-124-* 118-140 118-139
Control Panel Assembly
S536-498 S536-877
127-471 S127-528
125-081 125-083
S521X527 S521-552 118-103-* 118-108 118-113 S553-523-* S553-549 S553-550 S553-524-* S553-553 S553-554 S514-241-* S514-238 S514-239
121X467
105X850
137-685 S501-934-* S501-995 S501-940
147-044
S111X247
135X123
109-450 109-454 109-452
135-329
BOP-3
5252-033
Description
Top Rain Flashing Top Rain Flashing Top Rain Flashing Top Top Top Drain Pan Drain Pan Upper Back Upper Back Upper Back Grommet Retainer Right Side Right Side Right Side Right Side Cover Plate (Outer) Right Side Cover Plate (Outer) Right Side Cover Plate (Outer) Filter Bracket Fill Plate Control Panel Cover (Inner) Control Panel Cover (Inner) Bottom Mounting Bracket Disconnect Access Door Disconnect Access Door Disconnect Access Door Control Panel Cover (Outer) Control Panel Cover (Outer) Control Panel Cover (Outer) Side Grille Side Grille Side Grille See Control Panel Assy. Drawing & Parts List Assy. Cond. Partition Block Off Plate Cond. Partition Block Off Plate Lower Base Lower Base Fan Shroud Fan Shroud Condenser Partition Condenser Partition Condenser Grille Condenser Grille Condenser Grille Vent Option Door Vent Option Door Vent Option Door Filter Door Filter Door Filter Door Upper Front Upper Front Upper Front Blower Partition Side Support Bottom Evaporator Fill Left Side Left Side Left Side Evaporator Support Outlet Air Frame Assembly Heat Shield Lower Back Lower Back Lower Back Air Baffle Blank Off Plate Bard Nameplate
XXXXXX
XXXXXX
XXXXXX
XXXXXX
XXXXXX
XXXXXX
XXXXXX
XXXXXX
XXXXXX
XXXXXX
XXXXXX
XXXXXX
XXXXXX
XXXXXX
XXXXXX
XXXXXX
XXXXXX
XXXXXX
222222
XXXXXX
X
X
X
X
X
X
XXXXXX
XXXXXX
XXXXXX
XXXXXX
XXXXXX
XXXXXX
XXXXXX
222222
222222
222222
XXXXXX
XXXXXX
XXXXXX
XXXXXX
XXXXXX
XXXXXX
XXXXXX
XXXXXX
XXXXXX
XXXXXX
XXXXXX
XXXXXX
XXXXXX
XXXXXX
XXXXXX
XXXXXX
XXXXXX
XXXXXX
XXXXXX
XXXXXX
XXXXXX
XXXXXX
XXXXXX
XXXXXX
XXXXXX
XXXXXX
XXXXXX
XXXXXX
XXXXXX
XXXXXX
XXXXXX
XXXXXX
XXXXXX
XXXXXX
XXXXXX
XXXXXX
EXterior cabinet parts are manufactured with various paint color options. To ensure the proper paint color is received, include the complete model and serial number of the unit for which cabinet parts are being ordered.
Exterior cabinet parts are manufactured from stainless steel Code "S" Exterior cabinet parts are manufactured from aluminum Code "A"
Manual 2110-1458D
Page
3 of 11
FUNCTIONAL COMPONENTS
2
1
3
4
5
6
7
14
13
Manual 2110-1458D Page 4 of 11
11
10
9
8
12 SEXP-1011
FUNCTIONAL COMPONENTS
W30ABPA W30ABPB W30ABPC W30ABPD W30ABPF W36ABPA W36ABPB W36ABPC W36ABPD W36ABPE W36ABPF W36ABEA W36ABEB W36ABEC
Dwg No. 1 1 1 1
2 2 2 2
3 3
4
5
6
7 7
8 8
9 9
10
11
12 12 12 12 12 12 12 12
13 13 13 13
14 14 14 14 14
NS NS
NS
NS
NS
NS
NS
NS
Part Number S900-360-001 S900-361-001 900-360-002 900-361-002
917-0355BX 917-0356BX 917-0357BX 917-0358BX
800-0456 800-0479
1171-023
1171-024
1171-022
8103-029 8103-030
8200-001 8200-050
5151-045 5151C045
CMC-31
CMA-39
8000-277 8000-365 8000-366 8000-438 8000-278 8000-283 8000-342 8000-439
5051-203BX 5054-203BX 5051-202BX 5054-202BX
7004-019 7003-031 7004-026 7004-048 7004-062
8406-142 8406-140
5201-021
5451-024
6031-009
1171-070
1171-068
1171-069
Description
Blower Assembly Blower Assembly Blower Assembly Blower Assembly
XX
XX
X
XX
XXXXX
X
X
Evaporator Coil w/Distributor Assy. Evaporator Coil - Coated w/Distributor Assy. Evaporator Coil w/Distributor Assy. Evaporator Coil - Coated w/Distributor Assy.
XXXXX XXXXX
XXXXXXXXX XXXXXXXXX
Distributor Assembly Distributor Assembly
XXXXXXXXX XXXXX
1/4" Receptacle
XXXXXXXXXXXXXX
1/4" Turn Retainer
XXXXXXXXXXXXXX
1/4" Turn Fastener
XXXXXXXXXXXXXX
Condenser Motor Condenser Motor
XX
XXXX
XXXXX
X
X
X
Fan Motor Mount Stainless Steel Fan Motor Mount
XXXXXXXXXXXXXX XXXXXXXXXXXXXX
Fan Blade Coated Fan Blade
XXXXXXXXXXXXXX XXXXXXXXXXXXXX
DIrty Filter Switch Kit
XXXXXXXXXXXXXX
Low Ambient Control (Screw On)
XXXXXXXXXXXXXX
Compressor Compressor Compressor Compressor Compressor Compressor Compressor Compressor
X
X
X
X
X
X
X
X
X
X
X
X
X
X
Condenser Coil Condenser Coil - Coated Condenser Coil Condenser Coil - Coated
XXXXX XXXXX
XXXXXXXXX XXXXXXXXX
Air Filter 1" Throw-Away (16x30x1)
XXXXXXXXXXXXXX
Air Filter 1" Washable (16x30x1)
XXXXXXXXXXXXXX
Air Filter 2" Pleated (16x30x2)
XXXXXXXXXXXXXX
Air Filter 2" Pleated MERV 11 (16x30x2) X X X X X X X X X X X X X X
Air Filter 2" Pleated MERV 13 (16x30x2) X X X X X X X X X X X X X X
High Pressure Switch (Screw On) Low Pressure Switch (Screw On)
XXXXXXXXXXXXXX XXXXXXXXXXXXXX
Filter Drier
XXXXXXXXXXXXXX
Tubing Isolation Grommet
22222222222222
Coremax Valve Core
22222222222222
Filter Door Clip
22222222222222
Filter Door Screw
22222222222222
Filter Door Screw Retainer
22222222222222
NS Not Shown Used with stainless steel cabinet option Optional on these models
Manual 2110-1458D
Page
5 of 11
CONTROL PANEL
1
2
9
17
26
11
12
14 4 7
6 10
20
21 27 25
5
Manual 2110-1458D Page 6 of 11
28 24
20 29
19 18
13 15 16 21 3 22 16 23
SEXP-880 B
CONTROL PANEL
W30ABPA W30ABPB W30ABPC W30ABPD W30ABPF W36ABPA W36ABPB,E W36ABPC W36ABPD W36ABPF W36ABEA W36ABEB W36ABEC
Dwg No. Part Number
1 117X137
2 117X395
Description Control Panel Top Control Panel
XXXXXXXXXX X X X XXXXXXXXXX X X X
3 135-122
Wire Shield
XXXXXXXXX X X X X
4 8201-130 5 3020-004
Blower Relay Communications Sheathed Cable
XXXXXXXXX X X X X XXXXXXXXX X X X X
6 8201-126
3 Phase Line Monitor 50/60 Hz
XX
X
XX
X
XX
7 8201-130 8 8201-164
Alarm Relay Compressor Control Module
XXXXXXXXX X X X X XXXXXXXXXX X X X
9 8301-057
Filter Switch w/Adjustment
XXXXXXXXX X X X X
10 8301-068-001*
11 8401-035 11 8401-038
UPC3-MULTI-TEC 2.0.0
Contactor 3-Pole 25 Amp Contactor 2-Pole 40 Amp
XXXXXXXXX X X X X
XX
X
XX
X
XX
X
X
X
X
X
12 8401-039
13 8407-065 13 8407-050
Aux. NC Contact
Transformer 208/240-24 75VA Transformer 480/24VAC 75VA
XX
X
XX
X
XX
XX
XXX
XX X X X
X
X
X
14 8607-013
Terminal Block 2 Term. 240V
X
X
15 8607-017 16 8607-037
Terminal Block 240V 2 Terminal Terminal Block 4 Position
XXXXXXXXX X X X X XXXXXXXXXX X X X
17 8607-041
Park Terminal
XXXXXXXXXX X X X
18 8611-006 19 8611-140-1200
Ground Terminal 2-1/4" x 1" Cable Duct x 12"
XXXXXXXXX X X X X XXXXXXXXX X X X X
20 8611-147
3-Pin Circuit Board Connector
XXXXXXXXX X X X X
21 8611-148 22 8611-149
4-Pin Circuit Board Connector 9-Pin Circuit Board Connector
XXXXXXXXX X X X X XXXXXXXXX X X X X
23 8611-185
8-Pin Circuit Board Connector
XXXXXXXXXX X X X
24 8611-189 25 8611-192
35MM DIN Rail 9" Small 3-Pin Circuit Board Connector
XXXXXXXXXX X X X XXXXXXXXX X X X X
26 910-1935 27 8611-183
Evap. Temp. Sensor Assembly 2-Pin Circuit Board Connector
XXXXXXXXXX X X X XXXXXXXXX X X X X
28 8611-150
DIN Rail Terminal Block
XXXXXXXXX X X X X
29 8552-052 29 8552-002 29 8552-062
NS 3000-1224 NS 3000-1231
NS 8615-037 NS 8615-038 NS 8615-041 NS 8615-054 NS 8615-052 NS 8615-095
Compressor Capacitor Outdoor Motor Capacitor Compressor Capacitor
Compressor Plug/Harness Compressor Plug/Harness
Circuit Breaker 30A 2 Pole (Opt.) Circuit Breaker 35A 2 Pole (Opt.) Circuit Breaker 60A 2 Pole (Opt.) Circuit Breaker 20A 3 Pole (Opt.) Circuit Breaker 30A 3 Pole (Opt.) Toggle Disconnect (Opt.)
X
X
X
XX
X
XX
X
XX
X
X
X
X
X
X
X
XX
X
XX
X
XX
X
X
X
X
X
X
X
X
X
X
X
X
X
NS 4207-108 NS 4207-207 NS 4207-307 NS 4207-602
NS 8301-075
Wiring Diagram Wiring Diagram Wiring Diagram Wiring Diagram
USB Micro Cable Female to Male
X
X
X
X
X
X
X
X
X
X
X
X
X
XXXXXXXXX X X X X
* Replacement part will have a letter attached to the end of the part number to designate software version (Example: 8301-068-001A). A software upgrade of all PLCs onsite (units and controllers) should accompany any PLC replacement. Latest revisions of software, change log and instructions are available on the Bard website at http://www.bardhvac.com/software-download/
Circuit breakers listed are for units without electric heat, "0Z" models. Hot gas bypass models not available without electric heat. See heater replacement parts manual for units with electric heat.
NS = Not Shown
Manual 2110-1458D
Page
7 of 11
BLOWER ASSEMBLY
2
3
5
1
10 9 8 7
6 1 2 3 4
SEXP-909
S900-360-001 S900-360-002 S900-361-001 S900-361-002
Dwg No.
1 1 1 1 1 1 1 1
2
3
4
5
6
7
8
9
10
Part Number
S8106-068-0150 S8106-068-0152 S8106-069-0151 S8106-069-0153 C8106-068-0150 C8106-068-0152 C8106-069-0151 C8106-069-0153
151-111
144-174
5152-090
5152-091
105-870
5451-011
8200-031
103-401
113-721
Description
Programmed Blower Motor & Control (230/208V) Programmed Blower Motor & Control (230/208V) Programmed Blower Motor & Control (460V) Programmed Blower Motor & Control (460V) Programmed Control Only (230/208V) Programmed Control Only (230/208V) Programmed Control Only (460V) Programmed Control Only (460V)
Housing
Diffuser
Wheel CW
Wheel CCW
Back Brace
Grommets
Motor Mount
Front Brace
Motor Control Bracket
X X X X
O O O O
2222
2222
XXXX
XXXX
XXXX
6666
XXXX
XXXX
XXXX
Manual 2110-1458D Page 8 of 11
20 6
5 12
7 8 1
Dwg. No.
1 2
3
4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 NS
Part Number
137-738 137-745
S101-979
S137-865 S101-978 S105-1344 S139-324 S137-867 S137-740 141-430 8602-044 S1921-067-0800 S1921-067-1004 S1921-067-0802 S1921-067-2504 8408-044 1012-052 1012-210 113-541 113-542 113-543 137-746 8602-040 537-751
22 15
FREECOOLING COMPONENTS
19 18
2
4
9
21
3
17 16
15 13 10
15
7 13
14
15 15
14 11
9 SEXP-859 A
Description
Lower Front Partition Lower Rear Fill
Right Side
Upper Rear Partition Left Side Blade Seal Angle Blade Upper Front Partition Lower Rear Partition Blade Support 1/4 x 9" Rod 29-9/16" Damper Blade Seal 13" Damper Blade Seal 10-11/16" Damper Blade Seal 29-3/8" Damper Blade Seal Sensor 10K Ohm Curve J w/ 5/16" Clip Hex Head Bolt 5/16 - 18x1-3/4" 0.0005 Zinc w/ Yellow Chromate 5/16" Nut 0.0005 Zinc w/ Yellow Chromate Sensor Bracket Filter Bracket Filter Bracket Upper Rear Fill Rod Bracket Condenser Cover Plate Assembly
Manual 2110-1458D
Page
9 of 11
FREECOOLING AIR HOOD
8 6
9 7 6
10 1 2
4 3
5 SEXP-752A
Dwg. No.
1 1 1
2 2 2
3
4
5 5 5
6 6 6
7 7 7
8 8 8
9 9 9
10 10 10
Part Number
115-284-* 115-291 115-290
113-538-* 113-568 113-571
S127-495-*
7003-079
S101-984-* S101-1033 S101-1013
105-1346 105-1346 105-1370
553-660-* 553-712 553-703
S107-346-* S107-354 S107-353
553-613 553-632 553-636
S101-873-* S101-997 S101-882
920-0375
920-0376
920-0377
920-0422
920-0411
Description
Hooded Front Door Hooded Front Door Hooded Front Door
Bottom Divider Bracket Bottom Divider Bracket Bottom Divider Bracket
Hood Bottom
Mist Filter 36-1/4" x 15-7/8" x 7/8"
Right Side Right Side Right Side
Side Filter Angle Side Filter Angle Side Filter Angle
Hood Mounting Door Hood Mounting Door Hood Mounting Door
Hood Top Hood Top Hood Top
Filter Door Filter Door Filter Door
Left Side Left Side Left Side
Complete Hood Assembly - Beige Complete Hood Assembly - White Complete Hood Assembly - Buckeye Gray Complete Hood Assembly - Stainless Steel Complete Hood Assembly - Aluminum
EXterior cabinet parts are manufactured with various paint color options. To ensure the
proper paint color is received, reference the following codes:
Beige -X
Buckeye Gray -4
White -1
Exterior cabinet parts are manufactured from stainless steel Code "S" Exterior cabinet parts are manufactured from aluminum Code "A"
Manual 2110-1458D Page 10 of 11
FREECOOLING DAMPER MOTOR
10 9
8
7
1
3
NUT
6
WASHER
Dwg. No. 1 3 4 5 6 7 8 9 10 11 12 NS
Part Number 141-466 8602-067 8602-008 8602-068 1012-174 1012-201 141-464 113-655 8406-150 1012-178 1012-231 910-2014
5
4
SEXP-879
Description Actuator Support Plate Direct Coupled Actuator Ball Joint Belimo Actuator Crank Arm 1/2" 1/4" - 20x3 - 1/4 Hex Cap Screws 1/4-20 Steel Keps Hex Nut Zinc Actuator Support Bar Blade Switch Bracket Lever Switch SPDT Sealed Pilot Duty 4-40 x 5/8" Phillips Pan Head Machine Screw, Zinc Plated 4-40 Steel Keps Hex Nut Zinc Outdoor Temperature Sensor
Manual 2110-1458D
Page
11 of 11
SUPPLEMENTAL INSTRUCTIONS
50 HZ ELECTRICAL DATA
Model
Rated Volts and Phases
Operating Voltage Range
No. Field Power Circuits
Minimum Circuit
Ampacity
Maximum External Fuse or Ckt. Brkr.
Field Power
Wire Size
Ground Wire Size
W24AB-D0Z 240/220-1
1
15
20
12
12
D05 240/220-1
198 - 254
1
28
30
10
10
D08 240/220-1
1
44
45
8
10
W24A/LB-F0Z F05
415/380-3
342 - 456
1 1
10 11
15
14
14
15
14
14
W30AB-D0Z
1
15
20
12
12
D05 240/220-1
198 - 254
1
28
30
10
10
D10
1
54
60
6
10
W30AB-F0Z
1
10
15
14
14
F07 415/380-3
342 - 456
1
16
20
12
12
F12
1
26
30
10
10
W36AB-D0Z
1
17
25
8
10
D05 240/220-1
198 - 254
1
28
30
8
10
D10
1
54
60
6
10
W36AB-E0Z
1
17
25
10
10
E06 240/220-3
198 - 254
1
21
25
10
10
E12
1
39
40
8
10
W36A/LB-F0Z
1
10
15
14
14
F07 415/380-3
342 - 456
1
14
15
12
12
F12
1
22
25
10
10
W42AC-E0Z
1
21
30
10
10
E09 240/220-3
198 - 254
1
30
30
8
10
E15
1
48
50
8
10
W42A/LC-F0Z
1
12
15
14
14
F07 415/380-3
342 - 456
1
16
20
12
12
* F14
1
29
30
10
10
W48AC-E0Z
1
23
35
8
10
E09 240/220-3
198 - 254
1
31
35
8
10
E15
1
50
50
8
10
W48A/LC-F0Z
1
12
15
14
14
F07 415/380-3
342 - 456
1
17
20
12
12
* F14
1
31
35
8
10
W60AC-E0Z
1
25
35
8
10
E09 240/220-3
198 - 254
1
32
35
8
10
E15
1
50
50
8
10
W60A/LC-F00
1
15
15
12
12
F07 415/380-3
342 - 456
1
18
20
12
12
* F14
1
31
35
8
10
W72A/LC-F00
1
21
25
10
10
F07 400/380-3
342 - 440
1
21
25
10
10
F14
1
32
35
8
10
These "Minimum Circuit Ampacity" values are to be used for sizing the field power conductors. Refer to the National Electric Code (latest version), Article 310 for power conductor sizing. Maximum size of the time delay fuse or "D" type circuit breaker for protection of field wiring conductors. Based on 75°C copper wire. All wiring must conform to all local and national electrical codes.
* F14 only offered on W**A units.
CAUTION: When more than one field power circuit is run through one conduit, the conductors must be derated. Pay special attentionto Note 8 of Table 310 regarding Ampacity Adjustment Factors when more than three conductors are in a raceway.
IMPORTANT: While this electrical data is presented as a guide, it is important to electrically connect properly sized fuses and conductor wires in accordance with all existing local codes.
Bard Manufacturing Company, Inc. Bryan, Ohio 43506
www.bardhvac.com
Manual:
7960-810
Supersedes: NEW
Date:
3-1-19
Page
1 of 2
OUTDOOR FAN MOTOR 50 HZ Models W42AC-E, W42AC-F, W48AC-E, W48AC-F, W60AC-E and W60AC-F have a condenser fan motor with a red and black speed tap. These units are shipped from the factory with the red lead connected. At no time is the black lead to be connected for 50HZ application.
WIRING MAIN POWER The disconnect means must have contact separation of 3 mm or greater in all poles.
Manual 7960-810 Page 2 of 2
Limited Warranty
For units applied within the United States, Puerto Rico, US Virgin Islands, Guam, Canada and Mexico
Limited Warranty To Original Purchaser: Bard Manufacturing Company, Inc. Bryan, Ohio 43506 warrants to you, the original purchaser, that your Bard product will be free from defects in materials and workmanship when used under normal conditions from the installation date through the time periods outlined in the "Duration of Warranty" section (see reverse side).
Proof Of Purchase: You must be able to show us the date on which you purchased your product when you make a claim under this warranty. Your owner's registration card filed online at www.wallmountwarranty.com or your contractor's invoice, bill of sale, or similar document is sufficient at time of warranty claim. If you can not show us the actual date of purchase, the time periods in this warranty will start on the date that we shipped your Bard product from our factory.
What This Warranty Does Not Cover: (Also see Duration of Warranty on reverse side.) This warranty does not cover defects or damage caused by:
1. Alterations not approved by us; improper installation (including over or under sizing), improper repairs, or servicing; or improper parts and accessories not supplied by us.
2. Misuse or failure to follow installation and operating instructions (including failure to perform preventative maintenance) or limitations on the rating plate. This includes failure to use low ambient controls on all applications requiring compressor operation in cooling mode below 60F outdoor ambient.
3. Any corrosion from operation in a corrosive atmosphere (examples: acids, halogenated hydrocarbons or environmental conditions). 4. Parts that must be replaced periodically (such as filters, oil nozzles, mist eliminators, ERV belts, pile seals, etc.). 5. Improper fuel or electrical supply (such as low voltage, voltage transients, power interruption, and units on generators with no brownout protection). 6. Accidents or other events beyond our reasonable control (such as storm, fire, or transportation damage). 7. Defects that happen after
(a) Anyone has tampered with the product. (b) The product has been improperly serviced according to accepted trade practices; (c) The product has been moved from its original place of installation; or, (d) The product has been damaged by an event beyond Bard's control (See also No. 5 above). 8. Consequential damages (such as increased living expenses while the product is being repaired). Some states do not allow the exclusion or limitation of incidental or consequential damages, so the above limitation or exclusion may not apply to you. 9. This warranty has certain limitations for units installed on over-the-road trucks, vans and trailers. (See reverse side.) 10. Cost of service call at installation site to diagnose causes of trouble, labor to replace defective component or transportation costs for replacement parts. 11. This Limited Warranty does not apply to products installed or operated outside of the US, Puerto Rico, US Virgin Islands, Guam, Canda and Mexico. Units operated in coastal areas where the operating environment is exposed to airborne saline particles (typically 5 miles from coast line) must have corrosion protection or warrenty claims will be declined on corrosion-based cabinet and part failures. 12. Bard does not endorse, approve or certify any online sales of its products through auction websites, online retailers, liquidators or any other method of online sales direct to consumers. Bard will not honor the factory warranty of any Bard equipment purchased over the Internet. Your Responsibilities: You are responsible for 1. Preventative maintenance of the product (such as cleaning and replacement of filters, nozzles and other consumable parts). 2. Insuring that the instruction manual is followed for care and use of your product. 3. Insuring that your product is installed by a competent, qualified contractor, following all local and national codes, and industry standards.
What We Will Do About A Defect: We will either repair or replace the defective part only. Replacement parts may be reconditioned parts. The warranty for the repaired or replaced part will last only for the remainder of the warranty period for the original part. For Heat Exchangers that are no longer available, we will give you credit equal to the then current retail price of an equivalent Heat Exchanger.
Defective parts and a properly completed Bard parts warranty form must be returned to a Bard distributor for submitting to Bard to be eligible for a warranty credit or replacement. Credits are issued to the Bard distributor.
We will not pay or be responsible for labor or defective/replacement part transportation costs or delays in repairing or failures to complete repairs caused by events beyond our reasonable control.
What You Must Do 1. Tell your heating and air conditioning contractor as soon as you discover a problem and have the contractor make repairs. 2. Pay for all transportation, related service labor, diagnostic charges, refrigerant, refrigerant recovery and related items.
Service If your product requires service, you should contact the contractor who installed it or the contractor that has been providing the product's preventative maintenance and repair service. You may find the installing contractor's name on the product or in your Owner's packet. If you do not know who that is, you should contact a competent, qualified contractor to make the repairs. If in doubt, you should contact the nearest distributor that handles Bard products (www.bardhvac.com). Please note that contractors and distributors that handle Bard products are independent contractors and distributors, and therefore, are not under the direction of Bard Manufacturing Company, Inc.
Only Warranty This is the only warranty that we make. There are no other express warranties. All implied warranties are limited in duration to the duration of the applicable written warranty made above. Some states do not allow limitations on how long an implied warranty lasts, so the above limitation or exclusion may not apply to you. Other Rights This warranty gives you specific legal rights and you may have other rights which vary from state to state.
BARD MANUFACTURING CO., INC. -- BRYAN, OHIO 43506
Dependable quality equipment . . . since 1914
Form No. 7960-420
Issued:
12/04/19
Supersedes: 08/22/19
Duration Of Warranty is limited to defects arising during the periods shown in the following table:
Model Number Series: Includes all Models in each Series & which may have additional characters. (Example: W12-70A includes W36A w/additional characters.)
-- Number of Years from Installation Date --
Compressor Sealed System
All Other
Heat
Components Functional Parts Exchangers
AIR CONDITIONERS
W12A, W17A, W18A, W24A, W30A, W36A, W42A, W48A, W60A, W70A, W72A, W090A, W120A,
W150, W180A, W17L, W18L, W24L, W30L, W36L, W42L, W48L, W60L, W70L, W72L, WA3S, WA4S,
5
5
WA5S, WL3S, W4LS, WL5S, D25A, D28A, D35A, D36A, D42A, D48A, D60A, D25L, D28L, D35L,
D36L, D42L, D48L, D60L, Q24A, Q30A, Q36A, Q42A, Q48A, Q60A, I30A, I36A, I42A, I60A
5
N/A
AIR SOURCE HEAT PUMPS
W18H, W24H, W30H, W36H, W42H, W48H, W60H, C24H, C30H, C36H, C42H, C48H, C60H, T24H, T30H, T36H, T42H, T48H, T60H, T24S, T30S, T36S, T42S, T48S, T60S, Q24H, Q30H,
5
5
Q36H, Q42H, Q43H, Q48H, Q60H, I30H, I36H, I42H, I48H, I60H, I36Z, I48Z, I60Z
5
N/A
ENVIRONMENTAL CONTROL UNITS W3RV, W4RV, W5RV, W6RV, W3LV, W4LV, W5LV, W6LV
5
5
1
N/A
EQUIPMENT SHELTER UNITS W**A2P, W**AAP, WR**, D**AAP, HR**, H12A, H72A
5
5
1
N/A
GEOTHERMAL/WATER SOURCE HEAT PUMPS QW2S, QW3S, QW4S, QW5S
5
5
5
N/A
CHILLED WATER QC50 (No Compressor)
N/A
5
5
N/A
GAS/ELECTRIC WALL-MOUNT W24G, W30G, W36G, W42G, W48G, W60G, WG3S, WG4S, WG5S
5
5
5
10
OIL FURNACES
N/A
N/A
ECM "V" Blower Models FC085, FH085, FH110, FLF075, FLF110, FLR075, FLR100, FLR130
PSC "D" Blower Models FC085, FH085D, FH110D, FLF085, FLF110, FLR085, FLR110, FLR140
N/A
N/A
SOF: SOF175, SOF265
N/A
N/A
ACCESSORIES Factory/Field Installed Bard Ventilation and Heater Packages Bard branded Thermostats/Temperature Controllers LC1000, LC1500, LC2000, LC5000, LC6000, LV1000, MC4002, DC3003, TEC40, BG1000, PGD, PGDX Humidistats, C02 Controllers and all other field installed accessories not listed separately
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
10
5
1
5 5 1 1
LIFETIME
LIFETIME
10
N/A N/A N/A N/A
For equipment that does not have an online warranty registration, the warranty period starts when the product was shipped from the factory. Heat transfer coils (refrigerant to air coils for air source and coaxial coils for water source units) are covered for leaks for 5 years. Physical damage to air side coils resulting in leaks
or insufficient airflow, or fin deterioration due to corrosive atmosphere (such as acids, halogenated hydrocarbons or coastal environmental conditions) are not covered. Leaks in coaxial coils due to freezing of the coils are not covered. Copper coaxial coils for QW are not warranted for ground water/open loop installations. Functional parts warranty is 1-year for all telecommunication, electric switch stations, pump stations and similar applications. This also applies to all OTR (over the road) applications. Limited lifetime warranty on Heat Exchangers applies to original purchaser in private, owner occupied residences. Subsequent owners and commercial uses are warranted for 20 years from date of installation. All OTR (over the road) applications that are moved from one location to another: Factory Warranty applies up to the point of initial start-up and test at all OEM manufacturing locations or subsequent outfitting facility. Once it goes into OTR service, the warranty expires immediately for compressor and sealed system components. This OTR exemption does not apply to relocatable classrooms, construction or office trailers. Standard warranty for non-registered Oil Furnaces is 5-year parts. Must be registered at www.wallmountwarranty.com within 90 days of installation for the 10-year parts coverage to be in effect. Factory coated coils have a "5" year warranty in corrosive environments that are listed as approved.
Internet Resources
Recognized as a leader in the HVAC industry, Bard combines quality products and outstanding service with innovation and technological advances to deliver highperformance heating and cooling products around the world. Please visit www.bardhvac.com for additional information regarding warranty and product information.
BARD MANUFACTURING CO., INC. -- 1914 Randolph Dr. -- BRYAN, OHIO 43506 Form No. 7960-420
Dependable quality equipment . . . since 1914
Issued:
12/04/19
Supersedes: 08/22/19