HydroTech WSV6 Water Source Heat Pump Instruction Manual

Instruction Manual for HydroTech models including: WSV6 Water Source Heat Pump, WSV6, Water Source Heat Pump, Source Heat Pump, Heat Pump, Pump

WSV6 Vertical Series – IOM (Rev. D 5/22)

AWSV6-UP-TO-6-TON-IO..>

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Installation, Operation, & Maintenance Manual

[PDF] Installation, Operation, & Maintenance Manual - First Co.

TEST MODE. The unit can be placed into test mode by shorting the test pins on the WSCM module. Once the pins are shorted, the. WSCM module will enter a test ...

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WSV6-UP-TO-6-TON-IOM-03-23-23

Installation, Operation, & Maintenance Manual
IOM 8001 Rev. J 3/23
WSV6 009-072 Vertical Series Water Source Heat Pump

WSV6 VERTICAL SERIES - IOM
COPYRIGHT
First Co. / AE-Air works to continuously improve its products and as a result, it reserves the right to change design and specifications without notice. The warranty may be void unless the Startup & Performance Checklist is completed and returned to the warrantor. If the HVAC unit is not installed properly, the warranty will be void, as the manufacturer cannot be held accountable for problems that stem from improper installation. ©2023 First Co. / AE-Air, 8273 Moberly Lane, Dallas, TX 75227

***WARNING TO INSTALLER, SERVICE PERSONNEL AND OWNER***
Altering the product or replacing parts with non-authorized factory parts voids all warranty or implied warranty and may result in adverse operational performance and/or a possible hazardous safety condition to service personnel and occupants. Company employees and/or contractors are not authorized to waive this warning.

WSV6 Vertical Series IOM

TABLE OF CONTENTS
SAFETY CONSIDERATIONS MODEL NOMENCLATURE GENERAL INFORMATION INTRODUCTION STORAGE SHIPPING & PACKAGE LIST UNIT INSPECTION CHECKLIST UNIT DIMENSIONAL DATA UNIT PHYSICAL DATA ELECTRICAL DATA INSTALLATION ELECTRICAL APPLICATION CONTROLS PERFORMANCE DATA WIRING DIAGRAMS CIRCUIT SCHEMATIC STARTUP INSTRUCTIONS STARTUP & PERFORMANCE CHECKLIST INSTRUCTIONS MAINTENANCE & SERVICE TROUBLESHOOTING SUPPORT/REFERENCE MATERIAL STARTUP & PERFORMANCE CHECKLIST NOTES

WSV6 VERTICAL SERIES - IOM
4-5 6 7 7 8 8 9
10-14 14 15
16-23 24
25-29 30-36 37-48 49-55 56-57 57-58
58 59 60-61 62 63 64-65

WSV6 Vertical Series IOM

WSV6 VERTICAL SERIES - IOM
SAFETY CONSIDERATIONS

1. READ THE ENTIRE MANUAL BEFORE STARTING THE INSTALLATION. 2. These instructions are intended as a general guide and do not supersede national, state, or local codes in any way. 3. Altering the product, improper installation, or the use of unauthorized factory parts voids all warranty or implied warranty
and may result in adverse operation and/or performance or may result in hazardous conditions to service personnel and occupants. Company employees or contractors are not authorized to waive this warning. 4. This product should only be installed and serviced by a qualified, licensed, and factory authorized installer or service agency. 5. All "kits" and "accessories" used must be factory authorized when modifying this product. Refer and follow instructions packaged with the kits or accessories when installing.

RECOGNIZE THE FOLLOWING SAFETY NOTATIONS THROUGHOUT THIS MANUAL AND POSTED ON THE EQUIPMENT:

Indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury.

Indicates a potentially hazardous situation or unsafe practices that could result in severe personal injury or death and/or damage to property.

This warning signifies potential electrical shock hazards that could result in personal injury or death.

The CAUTION symbol indicates a potentially hazardous situation that may result in minor or moderate injury.

Suggests important procedure steps to insure proper installation, reliability, or operation.

Used to highlight suggestions, which may result in enhanced installation, reliability or operation.

Failure to follow safety warnings exactly could result in dangerous operation, serious injury, death or property damage.
Improper servicing could result in dangerous operation, serious injury, death or property damage.
Before servicing, disconnect all electrical power to the WSV6 water source heat pump.
When servicing controls, label all wires prior to disconnecting. Reconnect wires correctly.

Verify proper operation after servicing.

WSV6 Vertical Series IOM

SAFETY CONSIDERATIONS CONTINUED

WSV6 VERTICAL SERIES - IOM

Mechanical components and filters can become clogged with dirt and debris, which can cause damage to the system. The manufacturer does not warrant equipment subjected to abuse. Construction debris can void warranties and liability for equipment failure, personal injury, and property damage.

Material in this shipment has been inspected at the factory and released to the transportation agency in good condition. When received, a visual inspection of all cartons should be made immediately. Any evidence of rough handling or apparent damage should be noted on the delivery receipt in the presence of the carrier's representative. If damage is found, a claim should be immediately filed against the carrier.
These models are designed for indoor installation only. Installation of this equipment, wiring, ducts, and any related components must conform to current agency codes, state laws, and local codes. Such regulations take precedence over general instructions contained in this manual.

DO NOT USE FOR HEATING AND COOLING BUILDINGS OR STRUCTURE UNDER CONSTRUCTION!

Improper installation, adjustment, alteration, service, or maintenance can cause property damage, personal injury or loss of life. Refer to the user's information manual provided with this water source heat pump. Installation and materials, service must be performed by a qualified installer, or service agency.

Installation and service must be performed by a licensed professional installer (or equivalent), or service agency. Attempting to install or repair this unit without such background may result in product damage, personal injury or death.

These instructions are intended as an aid to qualified, licensed service personnel for proper installation, adjustment and operation of this unit. Read these instructions thoroughly before attempting installation or operation. Failure to follow these instructions may result in improper installation, adjustment, service or maintenance possibly resulting in fire, electrical shock, property damage, personal injury or death.

Disconnect all power before servicing. Failure to do so may result in property damage, personal injury, or death.

Use care when handling compressors. Some surfaces could be hot!

Compressors should NOT be used to evacuate the air conditioning system. Vacuums this low can cause internal electrical arcing resulting in a damaged or failed compressor.

The unit must be permanently grounded. Failure to do so can cause electrical shock resulting in severe personal injury or death.

"USE COPPER SUPPLY WIRES ONLY!"

WSV6 Vertical Series IOM

WSV6 VERTICAL SERIES - IOM
MODEL NOMENCLATURE

FIGURE 1 Model Nomenclature

WSV6 Vertical Series IOM

GENERAL INFORMATION

DO NOT use these units as a source of heating or cooling during the construction process. Mechanical components and filters can become clogged with dirt and debris, which can cause damage to the system.
The manufacturer does not warrant equipment subjected to abuse.

Before servicing equipment, ALWAYS turn off all power to the unit. There may be more than one disconnect switch. Electrical shock can cause injury or death.
Clear surrounding area of all tools, equipment, and debris before operating this unit.
These instructions are provided for the installation of the WSV6 water source heat pump specifically. For any other related equipment, refer to the appropriate manufacturer's instructions.

This water source heat pump must never be operated under any circumstances without an air filter in place.

Material in this shipment has been inspected at the factory and released to the transportation agency in good condition. When received, a visual inspection of all cartons should be made immediately. Any evidence of rough handling or apparent damage should be noted on the delivery receipt in the presence of the carrier's representative. If damage is found, a claim should be immediately filed against the carrier.
The WSV6 water source heat pump is designed for indoor installation only. Installation of this equipment, wiring, ducts, and any related components must conform to current agency codes, state laws, and local codes. Such regulations take precedence over general instructions contained in this manual.

WSV6 VERTICAL SERIES - IOM

Extreme caution must be taken that no internal damage will result from screws that are drilled into the cabinet.
INTRODUCTION
The HydroTech WSV6 series water to air heat pump provide the best combination of performance, efficiency and reliability in a compact form factor. The WSV6 series comes standard with ECM blower motors for high efficiency and comfort. All WSV6 models feature double compressor vibration isolation for quiet operation, easy to remove blower housing for quick service, as well as a single compressor designs to lower system complexity and improve serviceability.
All WSV6 models are certified to AHRI ISO Standard 13256-1. The WSV6 models are designed to operate with fluid temperatures between 50°F to 110°F in cooling mode and 50°F to 90°F in heating mode for continuous operation. For operation below 50°F or above 90°F entering water temperature, extended range (insulated tubing) option is needed, and sufficient water flow is required to prevent freezing. Antifreeze solution is required for any application with entering water below 50 degree F.
Cooling Tower/Boiler and Geo Thermal applications should have sufficient antifreeze solution when required to protect against extreme conditions and equipment failure. Frozen water coils are not covered under warranty.
These installation instructions are intended as a general guide only, for use by an experienced, qualified contractor.

Do not use this water source heat pump during any phase of construction.

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WSV6 VERTICAL SERIES - IOM
STORAGE
Equipment should be stored in a clean dry, conditioned area with maximum temperatures up to 120°F [48.89°C] and minimum temperatures to 32°F [0°C]. Units should be stored upright and in an indoor environment. It is recommended to leave packaging on the unit until the installation is to begin.

Store cabinets how they are shipped (vertical), keeping them crated and on their pallets for protection. Failure to follow these instructions may result in improper installation, adjustment, service or maintenance, property damage, personal injury or death.
DO NOT operate these units during the construction process. Mechanical components and filters could become clogged with dirt and debris, which can cause damage to the system.
The manufacturer does not warrant equipment subjected to abuse.

Stacking of the WSV6 Systems is strictly prohibited. Stacking units may result in system and/or property damage
SHIPPING & PACKAGE LIST

Material in this shipment has been inspected at the factory and released to the transportation agency in good condition. When received, a visual inspection of all cartons should be made immediately. Any evidence of rough handling or apparent damage should be noted on the delivery receipt in the presence of the carrier's representative. If damage is found, a claim should be immediately filed against the carrier.
SHIPPING INSTRUCTIONS
WSV6 units must remain in the upright position as seen in FIGURE 2 Standard Packaging throughout the shipping and handling process to maintain a proper level of oil in the compressor.

Shrink-wrap is located around the unit for protection. Remove before installation.

FIGURE 2 Standard Packaging
PACKAGE LIST
The units will be shipped with the following items: 1- WSV6 unit: A- Shipping brackets a. Screws
2- Literature package A- IOM - Installation & Operations Manual
Check the unit for shipping damage; if found, immediately contact the last carrier.

WSV6 Vertical Series IOM

UNIT INSPECTION CHECKLIST
Complete the inspection procedures below before preparing unit for installation:
1) Visually inspect unit for any shipping damage. Damage must be reported immediately to the shipping company to make a claim.
2) Ensure that the carrier makes proper notation of any shortages or damage on all copies of the freight bill and completes a common carrier inspection report.
3) Verify that unit nameplates on the data label match the sales order or bill of lading (including, unit configuration, size and voltage).
4) Immediately before installation, remove unit front panel and verify that all electrical connections are tight and that there are no loose wires.
5) Check to make sure that the refrigerant piping is free from any kinks and there is no interference between unit piping and sheet metal or electrical wires.
6) Check that the blower spins freely within the housing and that there are no obstructions between the wheel and housing. The wheel can sometimes come loose in shipping.
7) Ensure that the evaporator distributor tubes are not touching one in another and that they are over the drain pan.
8) Check the air-coil fins for any damage during shipping. 9) Ensure that the shipping screws are removed from
the unit. Refer to FIGURE 3 Standard Packaging with Brackets for more information.

Check the unit nameplate for correct voltage with the plans before installing the equipment. Also, make sure all electrical ground connections are made in accordance with local code.

WSV6 VERTICAL SERIES - IOM
FIGURE 3 Standard Packaging with Brackets

WSV6 Vertical Series IOM

WSV6 VERTICAL SERIES - IOM
UNIT DIMENSIONAL DATA

FIGURE 4 Unit Dimensions

WSV6 Vertical Series IOM

UNIT DIMENSIONAL DATA CONTINUED

WSV6 VERTICAL SERIES - IOM

DIMENSIONAL DATA

MODEL

OVERALL CABINET

SUPPLY CONNECTIONS

WSV6009

21.50

36.25

9.50

7.75

4.25

4.50

12.75

4.25

WSV6012

21.50

36.25

9.50

7.75

4.25

4.50

12.75

4.25

WSV6018

21.50

36.25

5.50

13.75

2.25

3.50

16.25

1.75

WSV6024

21.50

36.25

5.50

13.75

2.25

3.50

16.25

1.75

WSV6030

21.50

39.25

5.50

13.75

2.25

3.50

16.25

1.75

WSV6036

21.50

26.00

43.25

5.00

15.75

0.75

5.00

16.25

4.75

WSV6042

26.00

43.25

7.25

17.75

1.00

5.00

17.75

3.25

WSV6048

26.00

43.25

7.25

17.75

1.00

5.00

17.75

3.25

WSV6060

26.00

51.25

5.25

19.00

1.75

4.75

19.00

2.25

WSV6072

26.00

51.25

5.25

19.00

1.75

4.75

19.00

2.25

Table 1 Unit Dimensional Data

MODEL
WSV6009 WSV6012 WSV6018 WSV6024 WSV6030 WSV6036
WSV6042
WSV6048 WSV6060 WSV6072

DIMENSIONAL DATA CONTINUED

WATER CONNECTION RETURN AIR CONNECTION

ELECTRICAL CONNECTION

2.75 7.25 13.25 17.50 16.00 18.00 4.25 6.75 10.50 15.00 18.25 2.00

2.75 7.25 12.75 17.50 16.00 18.00 4.25 6.75 10.50 15.00 18.25 2.00

2.75 7.25 12.75 17.50 18.00 20.00 4.25 6.75 10.50 15.00 19.25 2.00

2.75 7.25 12.75 17.50 22.00 24.00 4.25 6.75 10.50 15.00 19.25 2.00

2.75

6.25

10.75 LH 16.75 RH

22.00

28.00

30.00

2.50

5.00

7.75 10.50 13.25 2.00

2.75 6.25 10.75 22.00 28.00 30.00 2.50 5.00 7.75 10.50 13.25 2.00

2.75 6.25 10.75 22.00 28.00 38.00 2.50 5.00 7.75 10.50 13.25 2.00

2.75 6.25 10.75 22.00 28.00 38.00 2.50 5.00 7.75 10.50 13.25 2.00 Table 2 Unit Dimensional Data Continued

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WSV6 VERTICAL SERIES - IOM
UNIT DIMENSIONAL DATA - ECONOMIZER

FIGURE 5 Unit Dimensions Economizer RH

WSV6 Vertical Series IOM

WSV6 VERTICAL SERIES - IOM
UNIT DIMENSIONAL DATA - ECONOMIZER CONTINUED

FIGURE 6 Unit Dimensions Economizer LH

WSV6 Vertical Series IOM

WSV6 VERTICAL SERIES - IOM
UNIT DIMENSIONAL DATA - ECONOMIZER CONTINUED

MODEL
WSV6048 WSV6060 WSV6072

DIMENSIONAL DATA - ECONOMIZER

A' 1" 2"

B L R

F L R

31.59 0.91 1.91 30.39 29.82 43.16 2.72 6.22 10.72 16.72 5.25 18.88 1.92

31.59 0.91 1.91 30.39 29.82 51.20 2.72 6.22 10.72 16.72 5.25 18.88 1.92

31.59 0.91 1.91 30.39 29.82 51.20 2.72 6.22 10.72 16.72 5.25 18.88 1.92 Table 3 Unit Dimensional Data - Economizer

J K L
2.38 18.88 4.77 2.38 18.88 4.77 2.38 18.88 4.77

UNIT PHYSICAL DATA

WSV6 MODELS UNIT INFORMATION Compressor Type (Qty) Factory Charge (R410A) lbs. [oz] Fan Motor Type (Qty) Fan Motor HP Blower Wheel Size (D x W) in. Water Connection FPT (in) COAX Volume (US Gallons) Condensate Connection FPT (in)
Air Coil Dimension (H x W) in.
Filter Size (H x W) in.
Filter (Qty) Operating Weight lb. Shipping Weight lb.

PHYSICAL DATA 009 012 018 024 030 036 042 048 060 072

Rotary (1)

Scroll (1)

2.2 [36] 2.6 [42] 2.5 [39] 2.7 [43] 3.1 [50] 3.9 [63] 5.0 [80] 4.8 [76] 6.3 [100] 6.3 [100]

ECM (1) ECM (1) ECM (1) ECM (1) ECM (1) ECM (1) ECM (1) ECM (1) ECM (1) ECM (1)

1/4

1/3

1/2

3/4

6.75 x 7 6.75 x 7 9 x 7 9 x 7 10 x 8 10 x 8 10 x 8 10 x 8 11 x 10 11 x 10

3/4

0.12 0.14 0.14 0.36 0.43 0.53 0.62 0.91 0.91 1.08

3/4

18 x 18 x 18 x 18 x 20 x 24 x 28 x 28 x 36 x 36 x

16.375 16.375 16.375 16.375 16.25 20.875 20.875 20.875 20.875 20.875

18 x 20

20 x 20

24 x 24

24 x 30

18 x 24 20 x 24

155 160 190 205 215 250 290 315 360 365

164 166 195 208 221 254 295 320 365 370

Table 4 Physical Data

WSV6 Vertical Series IOM

ELECTRICAL DATA

WSV6 VERTICAL SERIES - IOM

MODEL WSV6009 WSV6012 WSV6018 WSV6024
WSV6030
WSV6036
WSV6042
WSV6048
WSV6060 WSV6072

ELECTRICAL DATA

VOLTAGE-PH-HZ COMPRESSOR

BLOWER MOTOR

RLA LRA FLA HP

208/230-1-60 3.7 22 2.3 1/4

265-1-60

3.5 22 2.3 1/4

208/230-1-60 4.7 25 2.3 1/4

265-1-60

4.2 22 2.3 1/4

208/230-1-60 9 56.3 2.8 1/3

265-1-60

7.1 43 2.6 1/3

208/230-1-60 10.9 62.9 4.6 1/2

265-1-60

9.0 54 3.6 1/2

208/230-3-60 7.1 55.4 4.6 1/2

460-3-60

3.5 28 2.1 1/2

208/230-1-60 15.4 82.6 4.6 1/2

265-1-60 12.2 72 3.6 1/2

208/230-3-60 10.0 71 4.6 1/2

460-3-60

4.7 38 2.1 1/2

208/230-1-60 15.4 83.9 4.6 1/2

265-1-60 13.5 72 3.6 1/2

208/230-3-60 10.4 73 4.6 1/2

460-3-60

5.8 38 2.1 1/2

208/230-1-60 19.2 123.9 6.3 3/4

265-1-60 16.0 87 4.9 3/4

208/230-3-60 13.5 88 6.3 3/4

460-3-60

6.0 44 3.2 3/4

208/230-1-60 19.6 130 7.6 1

265-1-60 16.3 98 6.6 1

208/230-3-60 13.7 83.1 7.6 1

460-3-60

6.2 41 4.0 1

208/230-1-60 24.4 144.2 7.6 1

265-1-60 19.9 130 6.6 1

208/230-3-60 16.0 110 7.6 1

460-3-60

7.8 52 4.0 1

208/230-1-60 30.8 178 7.6 1

208/230-3-60 19.6 136 7.6 1

460-3-60

8.2 66.1 4.0 1

Table 5 Electrical Data

MIN.

MAX.

CIRCUIT CIRCUIT

AMPACITY PROTECTION

WSV6 Vertical Series IOM

WSV6 VERTICAL SERIES - IOM
INSTALLATION
REQUIREMENTS
Follow manufacturer's installation instructions, as well as local and municipal building codes.
INSTALLATION PRECAUTIONS

Always wear all appropriate personal protection Equipment when installing and servicing these units.

Use multiple people when moving and installing these units. Failure to do so could result in injury or death.

Contact with metal edges and corners can result injury. Protective gloves should be worn when handling. Exercise caution when installing and servicing unit.
Observe the following precautions for typical installation: Always use proper tools and equipment. No wiring or any work should be attempted without
first ensuring the unit is completely disconnected from the power source and locked out. Also, verify that a proper permanent and uninterrupted, ground connection exists prior to energizing power to the unit. Review unit nameplate and wiring diagram for proper voltage and control configurations. This information may vary from unit to unit.

When the unit is in operation components are rotating at high speeds and caution should be taken.

When soldering and brazing, it is recommended to have a fire extinguisher readily available. When soldering and brazing close to valves or sensitive components, heat shields or wet rags are required to prevent damage to the valves or components.

Insulation is installed in the unit to provide a barrier between varying atmospheres outside and within the unit. If insulation is damaged condensation can occur and can lead to corrosion, component failure, and possible property damage. Damaged insulation must be repaired prior to the operation of the unit. Insulation will lose its effectiveness and value when wet, torn, separated, and/or damaged.

When servicing this equipment, because of high pressures, make sure the reversing valve, expansion device, filter drier and other components are specifically designed for R-410A refrigerant.
ONLY USE service equipment specifically designated for use with R-410A.

R-410A can become combustible if mixed with air at elevated temperature and/or pressure. Failure to follow this warning could result in property damage and personal injury or death.

Do not operate this equipment without an air filter.

WSV6 Vertical Series IOM

INSTALLATION CONTINUED
UNIT CLEARANCE REQUIREMENTS

WSV6 VERTICAL SERIES - IOM

FIGURE 7 Unit Clearance Requirements
MOUNTING DETAILS
Locate the unit in an area that provides minimum clearance accesses as specified by FIGURE 7 Unit Clearance Requirements. Also, refer to this figure for detailed information on unit dimensional sizes. Consider all additional clearances needed for water connections, electrical connections, duct connections and sufficient return airflow.
UNITS ARE ONLY INTENDED FOR INDOOR INSTALLATION
DO NOT locate unit in areas subject to freezing temperatures or where high humidity levels could cause cabinet condensation. WSV6 units are available in right- and left-hand configurations. Units should be mounted level with a proper drain pan pitch toward the condensate drain as seen in FIGURE 8 Mounting Installation. 3/8"-1/2" vibration isolation pads must be used to minimize vibration transmission.

It is important to ensure the unit is securely mounted and that the mounting structure is sufficient to support the operating weight of the equipment. Place and size all anchors to ensure a safe and durable installation.

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WSV6 VERTICAL SERIES - IOM
INSTALLATION CONTINUED
MOUNTING DETAILS CONTINUED

FIGURE 8 Mounting Installation

WSV6 Vertical Series IOM

INSTALLATION CONTINUED
FILTER BRACKETS

WSV6 VERTICAL SERIES - IOM

FIGURE 9 Filter Bracket Detail

Filter brackets are shipped within the unit, they are located
within the blower compartment and must be mounted to
the external cabinet prior to mounting/installing the unit. Refer to Figure 9 Filter Bracket Detail.

Remove shipping blocks from under blower housing before installing the unit.

WSV6 Vertical Series IOM

WSV6 VERTICAL SERIES - IOM
INSTALLATION CONTINUED
PIPING NOTES

Prior to making piping connections, contractor must clean and flush water loop system. Failure to clean/flush system may result in excessive noise, tripping, and premature component failure.
1. Flush all field piping prior to connection to clear all debris.
2. Open all valves (mid-way for hand valves, manually open motorized valves) prior to soldering and brazing. Use proper heat shields to protect valve bodies.
3. When soldering or brazing to the unit, it is recommended to have a fire extinguisher readily available.
4. Use proper soldering and brazing techniques to protect valve bodies and unit components.
5. Avoid rapid quenching of soldered joints to prevent weakening.
6. Make provisions for expansion and contraction of piping systems to provide movement with temperature changes. Failure to make proper provisions will result in damage and failure of piping, fittings, and valves throughout the system.
7. DO NOT insulate the heads or motorized portion of control valves. Excessive heat build-up can cause damage and affect proper operation of the system.
8. Consider electrical routing when installing field piping.
9. Observe all regulations and codes governing installation of piping.
10. When all connections are complete, pressure test the system, and repair any leaks or faulty joints. Hydronic systems are not designed to hold pressurized air and should only be tested with water. Failure to observe this note could damage the system.

PIPING INSTALLATION
All piping must be adequately sized to meet the designed water flow as specified for the specific application, and must adhere to all applicable codes. Piping connections on the equipment are not necessarily indicative of the proper supply and return line sizes.
On units with plastic drain pans the drain connection must be made hand tight only.
Chilled water piping must be properly insulated to prevent condensation and potential property damage. It is also recommended that all piping be insulated to prevent freezing in unconditioned spaces.

Do not bend or kink supply lines or hoses. For all supply lines or hoses of 1-1/2" OD or greater, use proper sized fitting is recommended to prevent piping damage and potential restrictions in water flow.

For all applications, 50°F minimum entering water temperature and rated water flow is required to prevent freezing. Antifreeze solution is required for any application with entering water below 50°F. Frozen water coils are not covered under warranty.

All manual flow valves used in the system must be ball valves. Globe and gate valves must not be used due to high pressure drop and poor throttling characteristics. Never exceed the recommended water flow rates. Serious erosion or damage of the water to refrigerant heat exchanger could occur.

When anti-freeze is used in the loop, insure that it is compatible with the Teflon tape that is applied.
The WSV6 water source heat pump are designed to operate with the entering liquid temperature between 50°F and 110°F. With the extended range option, the heat pump model can operate with entering liquid temperatures between 50-110°F. Below 50°F. antifreeze solution must be used to prevent freezing. Frozen water coils are not covered under warranty.

WSV6 Vertical Series IOM

INSTALLATION CONTINUED
PIPING INSTALLATION CONTINUED

Do not allow hoses to rest against structural building components. Compressor vibration may be transmitted through the hoses to the structure, causing unnecessary noise complaints.
Always check carefully for water leaks and repair appropriately. Units are equipped with female pipe thread fittings. Consult the specification sheets for sizes. Teflon tape should be used when connecting water piping connections to the units to insure against leaks and possible heat exchanger fouling.
Do not over tighten the pipe connections. Flexible hoses should be used between the unit and rigid piping to avoid vibration transmission into the structure.
Ball valves should be installed in the supply and return lines for unit isolation and unit water flow balancing. Pressure / temperature ports are recommended in both the supply and return lines for system flow balancing. Water flow can be accurately set by measuring the water side pressure drop of the water to refrigerant heat exchanger.

Water piping exposed to extreme low ambient temperatures is subject to freezing and possible rupture. Proper prevention should be taken to prevent pipe freezing or equipment damage or failure may occur. Failure to follow this warning could result in property damage.

Ground loop applications require extended range equipment and optional refrigerant/water circuit insulation.

Geothermal Closed Loop Systems Operation of a WSV6 Water Source Heat Pump unit on a closed loop application requires the extended range option.
ANTIFREEZE
Anti-freeze solutions must be utilized when low loop temperatures are expected to occur. In areas where entering loop temperatures drop below 50°F or where
WSV6 Vertical Series IOM

WSV6 VERTICAL SERIES - IOM
piping will be routed through areas subject to freezing, antifreeze is needed. Alcohols and glycols are commonly used as antifreeze agents. Freeze protection should be maintained to 15°F below the lowest expected entering loop temperature. For example, if the lowest expected entering loop temperature if 30°F, the leaving loop temperature would be 22°F to 25°F. Therefore, the freeze protection should be at 15°F (30°F-15°F=15°F).
LOW WATER TEMPERATURE CUTOUT SELECTION
The Digital Control Module allows the field selection of low water (or water-antifreeze solution) temperature limit by clipping jumper JW1 and JW2, which changes the sensing temperature associated with thermistor CO1 and CO2 respectively. Note that the CO1 thermistor is located on the refrigerant line between the coaxial heat exchanger and expansion device (TXV). Therefore, CO1 is sensing refrigerant temperature, not water temperature, which is a better indication of how water rate/temperature is affection the refrigeration circuit. The factory setting for CO1 is for systems using water (30°F [-1.1°C] refrigerant temperature). In low water temperature (extended range) applications with antifreeze (most ground loops), jumper JW1 should be clipped to change the setting to10°F [12.2°C] refrigerant temperature, a more suitable temperature when using an antifreeze solution. All units operating with entering water temperatures below 50°F [10°C] must include the optional water/refrigerant circuit insulation package to prevent internal condensation.

Disconnect power BEFORE the jumper wires are clipped. Failure to do so could result in equipment and/or property damage.

For all applications, 50°F minimum entering water temperature and sufficient water flow is required to prevent freezing. Antifreeze solution is required for any application with an entering water temperature below 50°F or, if either JW1 or JW2 cut-out limits are set to 10°F (clipped). Failure to follow this waring could result in heat exchanger, equipment, or property damage.
21

WSV6 VERTICAL SERIES - IOM
INSTALLATION CONTINUED
CONDENSATE DRAINAGE
Condensate drain lines must be properly installed with adequate slope away from unit to ensure proper drainage. A minimum trap of 1.5 inches must be installed to isolate the negative pressures of the drain pan from the drain line. Refer to Figure 10 Condensate Drainage for schematic information on the condensate drain lines.

Check the condensate overflow sensor for proper operation and adjust if necessary. Final field adjustments ensures proper operation to avoid property damage.

On units with plastic drain pans, the drain connection must be made hand tight only.

Both the supply and return water lines will sweat if subjected to low water temperature. These lines should be insulated to prevent water damage to the property.

Units equipped with the economizer option must have a separate externally trapped drain line for condensate removal.
Insulation is not required on loop water piping except where the piping runs through unconditioned areas, outside the building or when the loop water temperature is below the minimum expected dew point of the pipe ambient conditions. Insulation is required if loop water temperature drops below the dew point.
Units are supplied with either a copper or optional cupronickel water to refrigerant heat exchangers. Copper is adequate for ground water that is not high in mineral content. Should your well driller express concern regarding the quality of the water or should any known hazards exist in your area then we recommend proper testing to assure the well water quality is suitable for use with water source equipment. In conditions anticipating moderate scale formation or in brackish water a cupro-nickel heat exchanger is recommended.
22

FIGURE 10 Condensate Drainage
DUCTWORK
Discharge ductwork is normally used with these units. When return air ductwork is required, the unit is supplied with 1-inch filter rack/duct collar for connection of return air ductwork. All ductwork must be installed in accordance with National Fire Protection Assoc. Codes 90A and 90B. Supply and Return ducts must be sized properly as to not exceed static pressure capabilities Ducts should be adequately insulated to prevent condensation and to minimize heat loss. A flexible connector is recommended for supply air connections on metal duct systems.
FIGURE 11 Discharge Ducting
WSV6 Vertical Series IOM

INSTALLATION CONTINUED
DISCHARGE DUCTING
All ductwork should conform to industry standards of good practice as described in ASHRAE System Guide. A field supplied discharge duct system will normally consist of flexible connector at the unit, a non-insulated transition piece to the full duct size, a short run of duct, an elbow without vanes and a trunk duct teeing into a branch circuit with discharge diffusers as shown in FIGURE 11 Discharge Ducting. The transition piece must not have an angle greater than 30° or severe loss of air performance may result.
DO NOT connect the full duct size to the unit discharge collar without using a transition piece down to the size of the unit discharge collar. With metal material, the sides of the elbow and entire branch duct should be internally lined with acoustic insulation for sound attenuation. Glass Fiber duct board material is more absorbing and may permit omission of the flexible connector. The ductwork should be laid out so that there is no line of sight between the unit discharge and the distribution diffusers.
RETURN AIR DUCTING
Return air duct can be brought in through a wall grille and then to the unit. The return duct system will normally consist of flexible connector at the unit and a trunk duct to the return air grille. With metal duct material, the return air duct should be internally lined with acoustic insulation for sound attenuation. Glass Fiber duct board material is more absorbing and may permit omission of the flexible connector. A 1-inch air duct collar flange is included on the filter rack for ducted return air application. A flexible duct collar can then be attached between a duct transition and the return air ductwork. The return air duct transition must be the same size as the return air coil face area. See FIGURE 12 Return Air Ducting.

Follow the filter rack kit installation instructions & recommendations carefully.

WSV6 VERTICAL SERIES - IOM
FIGURE 12 Return Air Ducting

WSV6 Vertical Series IOM

WSV6 VERTICAL SERIES - IOM
ELECTRICAL
HIGH VOLTAGE

Disconnect all power supplies before servicing. Lock out/tag out to prevent accidental electrical shock. NOTE: There may be multiple power sources supplying the unit.

Use copper conductors only. Install all parts and panels before operation of unit. Failure to follow these warnings can result in injury or death.
All wiring must comply with local and national code requirements. Units are provided with wiring diagrams and nameplate data to provide information required for necessary field wiring.
The WSV6 water source heat pumps are provided with a class 2 transformer for 24VAC control circuits. Should any add-on accessory or component also have a class 2 transformer furnished, care must be taken to prevent interconnecting outputs of the two transformers by using a thermostat with isolating contacts.

Connect ground wire to ground terminal marked "GND". Failure to do so can result in injury or death.

Any device that has been furnished by the factory for field installation must be wired in strict accordance with the associated wiring diagram. Failure to do so could damage components and void warranties.
208-230 VOLT OPERATION
All 208-230 Volt units are factory wired for 230 Volt operation. For 208 Volt operation, moving/changing/rewiring the line voltage tap on the 24 Volt control transformer is required. See note 3 on the wiring diagram for instruction.

LOW VOLTAGE
THERMOSTAT A standard 24 VAC Heat Pump thermostat is required that will operate the reversing valve in the cooling mode. Thermostat connections and their functions are below in FIGURE 13 Thermostat Connections as follows:
C Transformer 24VAC Common O Reversing Valve (energized in cooling) Y Compressor Contactor R Transformer 24VAC Hot G Evaporator Blower
FIGURE 13 Thermostat Connections
THERMOSTAT INSTALLATION
The Thermostat should be located on an interior wall in a larger room, away from supply duct draft. Position the thermostat back plate against the wall so that it appears level and so the thermostat wires protrude through the middle of the back plate mounting holes and drill holes with a 3/16" (5mm) bit. Install supplied anchors and secure plate to the wall. Thermostat wire must be 18 AWC wire.

WSV6 Vertical Series IOM

APPLICATION
COOLING TOWER/BOILER APPLICATION
To ensure optimum cooling and heating performance, the cooling tower and boiler loop temperature should be maintained between 55-75°F in the heating mode and 6095°F in the cooling mode. In the cooling mode, heat is rejected from the heat pump's refrigerant into the water loop. A cooling tower and/or boiler may be required to maintain proper water temperature within the water loop. In an open cooling tower, chemical water treatment is mandatory to ensure water is free of corrosive materials
In heating mode, heat is absorbed from the water loop into the heat pump's refrigerant. A boiler may be utilized to maintain the proper water temperature within the loop.

A boiler may be required in the water loop to maintain the loop water temperature between 55-75°F. Failure to maintain proper water loop temperatures could result in equipment failure and property damage, and void warranties.
A secondary heat exchanger (plate frame between the unit and the open cooling tower) may also be used. It is imperative that all air is eliminated from the closed loop side of the heat exchanger to prevent condenser fouling.

Use copper conductors only. Install all parts and panels before operation of unit. Failure to follow these warnings can result in injury or death.

The manufacturer does NOT WARRANT equipment subjected to abuse. Dirt, piping chips or other foreign material can cause damage or failure to the water or to refrigerant heat exchanger.
No unit should be connected to the supply or return piping until the water system has been completely cleaned and flushed to remove dirt, piping chips or other foreign material. Supply and return hoses should be connected together during this process to ensure the entire system is properly flushed. After the cleaning and flushing has taken place the unit may be connected to the water loop and should have all valves adjusted to supply the proper flow rate for the unit. Nominal flow rate is 3 GPM per 12,000 BTUH of cooling.
WSV6 Vertical Series IOM

WSV6 VERTICAL SERIES - IOM
EXTENDED RANGE OPERATION
Piping systems expected to utilize water temperature below 50°F require the extended range option, which includes closed cell installation on all piping surfaces to eliminate condensation. This application requires sufficient antifreeze solution to prevent the water loop against extreme temperature conditions and condenser coil freezing. Frozen condenser coil are not covered under warranty. A boiler may be required to maintain the minimum water temperature within the loop.

Connect ground wire to ground terminal marked "GND". Failure to do so can result in injury or death.

Any device that has been furnished by the factory for field installation must be wired in strict accordance with the associated wiring diagram. Failure to do so could damage components and void warranties.
CLOSED LOOPS
Failure to maintain proper water loop temperatures could result in equipment failure and property damage, and void warranties. Consult the factory when running entering water temperatures below 50°F as additional pipe insulation may be required to avoid excessive sweating inside the unit. For applications below 50°F it is imperative that the system be operated with antifreeze solution. When a secondary heat exchanger is used (i.e. plate to plate; closed loop system) it is imperative that all air is purged from the system to prevent condenser fouling.

The entire water loop must be completely cleaned and flushed of all debris prior to final connections and unit
operation.
Valves should be adjusted to supply proper water flow rated for the unit.
Failure to do so will VOID ALL FACTORY WARRANTY.
25

WSV6 VERTICAL SERIES - IOM
APPLICATION CONTINUED
WATER WELL APPLICATION
REQUIREMENTS: 50° Minimum Entering Water Temperature Cupronickel Refrigerant Heat Exchanger
When a water well is used exclusively for supplying water to the heat pump, a cupronickel refrigerant heat exchanger is required and the well pump should operate only when the heat pump operate. A 24 Volt contactor can be wired to the ACC1 terminal on the Control Module which can be selected to be energize prior to or at compressor start-up, which would in turn energize the water pump to operate with the heat pump.

Potential Failure Mode
Corrosion and Scaling
Iron Fouling Erosion

WELL WATER APPLICATION

Water Chemistry Parameter

Copper

pH Level Hardness (Calcium or Magnesium
Carbonate) Langelier Saturation Index (LSI)
Ryznar Stability Index (RSI) Hydrogen Sulfide Sulfates Chlorine Chlorides Carbon Dioxide Ammonia
Ammonia Chloride, Nitrate, Hydroxide, Sulfate
Total Dissolved Solids (TDS) Iron, Iron Bacteria Iron Oxide
Suspend Solids

7-9
< 350 ppm
-0.5 to 0 6.2 6.8 < 0.5 ppm < 125 ppm < 0.5 ppm < 20 ppm < 5 ppm < 2 ppm
< 0.5 ppm
< 1000 ppm < 0.2 ppm < 1 ppm < 10 ppm, < 600 Micron or 30 mesh filter size

Design Water Velocity

3 GPM/TON

Table 6 Well Water Application Data

CuNi
7-9
<350 ppm
-0.5 to 0 6.2 6.8 < 0.5 ppm < 125 ppm < 0.5 ppm < 150 ppm < 5 ppm < 2 ppm
< 0.5 ppm
< 1500 ppm < 0.2 ppm < 1 ppm < 10 ppm, < 600 Micron or 30 mesh filter size
3 GPM/TON

Minimum entering water temperature is 50°F. Failure to follow this warning could result in equipment failure and property damage. The discharge water from the heat pump is not contaminated in any manner and can be disposed of in various way depending upon local codes.

Close loop and pond applications require specialized design knowledge. Do not attempt at these installations without the licensed installer the received specialized training.

WSV6 Vertical Series IOM

WSV6 VERTICAL SERIES - IOM

APPLICATION CONTINUED
ECONOMIZER

OVERVIEW In large commercial buildings, it is common for simultaneous heating and cooling loads to be required during the winter and shoulder seasons. In order to balance the need for different heating and cooling loads, an economizer can be used to provide "free" cooling to spaces that require it. The water-source heat pumps nearer to the exterior of the building will heat the space by extracting heat from the building's fluid supply. The chilled fluid supply can then be used to provide cooling, by passing the fluid through the economizer coil.
FEATURES AND BENEFITS The Hydrotech WSV6 waterside economizer option is a modular hydronic cooling coil that uses the buildings water loop to provide "free" cooling to the space. The economizer works by sensing the entering fluid temperature into the water-source heat pump and when the temperature falls below a specified set point, the system will turn off the compressor and divert the incoming chilled fluid into the economizer coil.
The ASHRAE 90.1 Energy Standard for Buildings, requires that water-source heat pumps over 54,000 BTUh of capacity be equipped with a water-side economizer. For the jurisdictions in which the ASHRAE 90.1 2019 standard is fully ratified, the Hydrotech WSV6 waterside economizer option satisfies all ASHRAE 90.1 requirements for the inclusion of an economizer on water-source heat pump units.
ECONOMIZER PERFORMANCE DATA

ECONOMIZER PERFORMANCE TABLE

Airflow

Flowrate

Pressure Drop

Unit

SCFM

GPM

FOH

1200

1.5

WSV6048

1400

3.3

1600

5.7

1500

7.5

1.8

WSV6060

1750

11.3

3.8

2000

6.5

1200

2.5

WSV6072

1400

13.5

5.3

1600

9.2

NOTE: Pressure drop measured at 45° EWT Table 7 Economizer Performance Data

Coil Pressure Drop
IWC 0.18 0.22 0.28 0.15 0.19 0.23 0.21 0.27 0.32

To ensure optimum performance of the economizer coil, it is recommended that the EWT temperature be between 40°F 50°F. Temperatures above 50°F will limit effectiveness of the economizer coil. The electronic temperature sensor has a default set point value of 45°F.

The economizer coil adds a substantial amount of additional static pressure to the unit's blower system. To ensure adequate airflow refer to TABLE 7 Economizer Performance Data.

WSV6 Vertical Series IOM

WSV6 VERTICAL SERIES - IOM
APPLICATION CONTINUED
HOT GAS REHEAT DEHUMIDIFICATION
OVERVIEW Because ventilation air is introduced into buildings, indoor air quality (IAQ) and relative humidity (RH) are important issues to address in selecting heating and cooling equipment. With the Hydrotech WSV6 hot gas reheat dehumidification option, the return air from space is conditioned by a dedicated air-to-refrigerant coil and then reheated by a reheat coil to control space temperature and reduce space relative humidity. Reduced relative humidity levels also provide an improvement in indoor air quality.
ON/OFF HOT GAS REHEAT The Hydrotech WSV6 hot gas reheat dehumidification has DDC control so the unit is BMS (BACnet MSTP) ready. See IOM8083D01 for more information on DDC Controller. Besides DDC controller, hot gas reheat dehumidification consists of a reheat coil (mounting of the air leaving side of the indoor air coil), a reheat valve and a bleed off valve. With this hot gas reheat dehumidification option, the return air from the space is conditioned by the air-to-refrigerant indoor air coil, then reheated by the reheat coil to control not only the space temperature, but to also reduce the relative humidity of the space. The hot gas reheat dehumidification functions only during the cooling cycle.
DEHUMIDIFICATION When the space sensible temperature has been met (thermostat is satisfied) and the space relative humidity is still higher than set point (de-humidistat has not satisfied), the unit will operate in the dehumidification mode. The reheat valve energizes, allowing the high-pressure refrigerant gas to flow from the compressor through the reversing valve. The high pressure and hot refrigerant is diverted in two paths. One goes through the reheat valve then the reheat coil to raise the leaving air temperature. The other goes through the coaxial coil. The 2-phase refrigerant from the reheat coil and the liquid refrigerant from the coaxial are mixed before entering the evaporator for dehumidification. Dehumidification will stop when either de-humidistat has been satisfied or there is demand of space sensible temperature. If there is a demand from space sensible temperature, the unit will operate in cooling mode.

WSV6 Vertical Series IOM

WSV6 VERTICAL SERIES - IOM

APPLICATION CONTINUED
ANTIFREEZE CORRECTION FACTORS DATA

ANTIFREEZE
COOLING CAPACITY HEATING CAPACITY
PRESSURE DROP

10% 0.995 0.991 1.070

ETHYLENE GLYCOL

20%

30%

0.992

0.987

0.982

0.977

1.130

1.180

Table 8 - Antifreeze Correction Factors Ethylene Gycol

40% 0.983 0.969 1.260

50% 0.979 0.961 1.280

ANTIFREEZE
COOLING CAPACITY HEATING CAPACITY
PRESSURE DROP

10% 0.990 0.987 1.070

PROPYLENE GLYCOL

20%

30%

0.980

0.970

0.975

0.962

1.150

1.250

Table 9 - Antifreeze Correction Factors Propylene Gycol

40% 0.960 0.942 1.370

50% 0.950 0.930 1.420

ANTIFREEZE
COOLING CAPACITY HEATING CAPACITY
PRESSURE DROP

10% 0.980 0.950 1.023

METHANOL

20% 0.972 0.970 1.067

Table 8 - Antifreeze Correction Factors Methanol

ANTIFREEZE
COOLING CAPACITY HEATING CAPACITY
PRESSURE DROP

10% 0.991 0.995 1.035

ETHANOL

20% 0.951 0.960 0.960

Table 9 - Antifreeze Correction Factors Ethanol

WSV6 Vertical Series IOM

WSV6 VERTICAL SERIES - IOM
CONTROLS
SEQUENCE OF OPERATION
START

YES

Y = ON

COOL MODE YES

ANTI-SHORT CYCLE
NO

G = ON

YES FAN MODE

FAN = ON

STAND BY

FAULT RETRY BLINK

INITIAL CONDITION: Comp = Off; Fan = Off AWAY CHIP = NOT INSERT
LEGEND: Y = Call for Cooling G = Call for Fan HPS High Pressure Switch LPS Low Pressure Switch CO1 Air-Coil Freeze Sensor CO2 = Water-Coil Freeze Sensor CON Condensate Overflow Sensor

SYSTEM CHECK
NO

HPS = CLOSED NO
YES

FAULT RETRY

LPS = CLOSED

YES

COMP STATUS ON NO
YES

COUNT

< 3

YES

SYSTEM LOCK

COMP OFF

ALARM RELAY & FAULT BLINK CDO

T1 > CO1

YES

T2 > CO1

YES

CON = OPEN

YES

COMP STATUS ON YES

DIP 1.1 TARG YES

YES

COMP ON
FIGURE 14 Sequence of Operations

NO
T > 5S
YES

WSV6 Vertical Series IOM

CONTROLS CONTINUED
WSCM CONTROL MODULE
CONTROL FEATURES Anti-short Cycle Protection Random Start High and low Pressure Cut-out Water Coil Low Temperature Cut-out Over/Under Voltage Protection Fault Retry Lockout with Soft and Hard Reset Condensate Overflow Sensor Diagnostic LED Display Test Mode Alarm Relay Accessory Relays Vacated Mode Extended Compressor Operating Monitoring
MOTOR SPEED OPERATION An ECM blower can be driven directly from the WSCM control module. The control of the motor is based off the input signals of G, Y1, and O. The blower speed is automatically controlled via the WSCM module.

MOTOR SPEED OPERATION

Unit Call

Fan Speed

Y,O,G

G2, then G3 after 10min of run time

Table 12 Motor Speed Operation ECM

A secondary heat exchanger (plate frame between the unit and the open cooling tower) may also be used. It is imperative that all air is eliminated from the closed loop side of the heat exchanger to prevent condenser fouling.

FIELD CONTROLLABLE FUNCTIONS
TEST MODE The unit can be placed into test mode by shorting the test pins on the WSCM module. Once the pins are shorted, the WSCM module will enter a test mode period in which all time delays are sped up 15 times. While in test mode the yellow LED2 will light up yellow. Faults stored in memory can be cleared by entering into test mode and exiting the test mode, or by a hard reset. Test mode can be exited by shorting the test pins for approximately 3 seconds.

WSV6 Vertical Series IOM

WSV6 VERTICAL SERIES - IOM

Test mode will be automatically exited after a 10 minute period.

During test mode, the control will monitor to see if CO1 and CO2 freeze thermistors are present and correctly. The controls will indicate fault code 19 if CO1 or CO2 are open, or if there is a jumper connecting across the free sensors terminals. VACATED PREMISES CONTROL

Optional Vacated Premise Kit option must be installed to operate in this mode. The vacated premises operation is designed for extended periods of un-occupancy when the occupant wants the heat pump to operate in cooling mode for a predetermined cycle time to help control indoor air conditions. See Dip 1.7 for time selection (1 or 2 hours). Additionally, the mode will store all faults seen over 24 hours in memory. If the same fault occurs for 4 consecutive days, the unit will go into a hard lockout. The control kit consist of a rocker switch, wiring and a programmed chip that is installed on the WSCM module by a licensed contractor.
31

WSV6 VERTICAL SERIES - IOM

CONTROLS CONTINUED
FIELD CONTROLLABLE FUNCTIONS
HOME SELECTION If the switch is in the HOME position the heat pump will operate in its normal mode.
AWAY SELECTION If the switch is in the AWAY position the heat pump and thermostat are set to "COOL" mode the heat pump will operate in accordance to the thermostat setting. Additionally, the heat pump will cycle on in cooling mode for 15 minute run times either 4 or 8 times per day depending on the Dip 1.7 selection. Thermostat still has priority and will cycle the unit as needed.

If the LED display is flashing "Ay" the thermostat is not set in cooling mode.

BOILERLESS CONTROL The system can operate in boilerless mode by switching Dip 1.5. If CO1 goes below the setting of Dip 1.6 the compressor will be de-energized and control goes into emergency heat mode staging on "W1". The compressor will be locked out for 60 minutes to prevent nuisance cycling.

The set point for boiler less changeover temperature can be adjusted by switching Dip 1.6.

WATER-COIL LOW TEMPERATURE CUT-OUT LIMIT Jumpers JW1-CO1 provide field selection of the temperature limit settings for CO1.

Not Clipped = 30°F

Clipped = 10°F

For all applications below 50°F entering water temperature, anti-freeze solution is required. Failure to follow this warning could result in heat exchanger, equipment or property damage.

ALARM RELAY SETTING Jumper 3 (JW3 Alarm) provides field selection of alarm relay terminal AL2 to be jumpered to 24VAC or to be dry. The alarm relay is activated during lockout mode.
Not Clipped = AL2 Connected to "R"
Clipped = AL2 dry contacts (No connection)

DEHUMIDIFICATION MODE The system can operate in Dehumidification mode by switching Dip 1.4 on the WSCM module. In this mode, the unit will run continuously in fan speed G2 when Y,O, G calls are given to the board. Dehumidification mode will not run in heating mode.
WSCM SAFETY FEATURES
ANTI-SHORT CYCLE PROTECTION The WSCM module incorporates a 5 minute anti-short cycle protection for the compressor.
RANDOM START The WSCM module features a 5-80s random start upon receiving a call to operate.
FAULT RETRY While in Fault Retry Mode the LED will display a code representing retry and the fault code. The unit will initiate the Anti-short cycle timer and try to restart after the delay. If 3 consecutive faults occur without satisfying the thermostat the unit will go into hard lockout. The last fault causing the lockout will be stored in memory and displayed on the two digit LED display.
WATER-COIL LOW TEMPERATURE CUT-OUT (CO1) The control module will recognize a CO1 fault during a compressor run cycle if:
a) Thermistor temperature is below the selected set point limit.
b) The thermistor temperature is rising at a rate less than 2°F per 30s time period. The CO1 input is bypassed for the first 120s of a compressor run cycle. On the second and third retry CO1 is bypassed for the initial 90s and 60s of run-time respectively.
AIR COIL LOW TEMPERATURE CUT-OUT (CO2) The control module will recognize a CO2 fault during a compressor run cycle if:
a) Thermistor temperature is below the selected set point limit.
b) The thermistor temperature is rising at a rate less than 2°F per 30s time period. The CO2 input is bypassed for the first 120s of a compressor run cycle.

WSV6 Vertical Series IOM

CONTROLS CONTINUED
WSCM SAFETY FEATURES
CONDENSATE OVERFLOW SENSOR The condensate overflow sensor must sense overflow levels for 30 continuous second to initiate a COF fault. The condensate overflow sensor will be monitored during the compressor run cycle.
LOW PRESSURE The low pressure switch must be open and remain open for 30 continuous seconds during the "on" cycle to be recognized as a low pressure fault. The low pressure switch input is bypassed for the initial 120s of compressor runtime.
HIGH PRESSURE If the high-pressure switch opens at any time, the compressor relay is de-energized immediately.
LOCKOUT MODE While in Lockout Mode the LED Display will display a code representing the lockout fault code. During this lockout the compressor relay is not energized and the alarm relay is activated.
The lockout mode can be cleared by either going into test mode or a hard reset via the power disconnect
Caution: Do not restart units in lockout mode without inspection and correction of the fault condition. Failure to do so many result in equipment damage.
EXTENDED COMPRESSOR OPERATION MONITORING If the compressor relay has been energized for four continuous hours, control module will automatically turn off the compressor relay and the compressor will enter anti-short cycle delay before restarting. During this off period, all appropriate safety will be monitored and if the compressor demand is present, the control module will energize the compressor relay.
OVER/UNDER VOLTAGE SHUTDOWN Should an Over/Under Voltage Condition be detected the control module will shut down. Over/Under Voltage faults cause a soft lockout and the unit will return to normal operation once normal voltage has been restored. The nominal voltage run is 18.5VAC to 31VAC. If the WSCM module is in Over/Under Voltage fault for 15 minutes, the alarm relay will activate.
WSV6 Vertical Series IOM

WSV6 VERTICAL SERIES - IOM
FIGURE 15 Control Board Layout FIGURE 16 Sight Glass Location
33

WSV6 VERTICAL SERIES - IOM
CONTROLS CONTINUED
ELECTRONIC TEMPERATURE CONTROLLER (ECONOMIZER)

The electronic temperature controller must be configured prior to the initial unit start-up in order for the economizer parameters be entered.
FIGURE 17 Electronic Temperature Controller
VIEWING AND CHANGING BASIC MENU VALUES
To access the Basic menu and view and change the Basic parameter values, complete the following steps. 1. On the Main screen, press MENU. The LCD displays OFF, which is the first parameter code screen displayed in the Basic menu. 2. To scroll through all of the basic parameter codes and display the preferred code, press Down or Up. 3. With the preferred parameter code displayed, press MENU to display the current parameter value for the code. 4. With the current parameter value displayed, press Down or Up to scroll through all of the parameter's usable values and display the preferred value. 5. With the preferred parameter value displayed, press MENU to save the displayed value and go to the next parameter code. 6. To exit the Basic menu and go to the Advanced menu, simultaneously press and hold Down or Up for 5 seconds.
34

ECONOMIZER PARAMETER CODES AND MODES OF OPERATION
RELAY OFF TEMPERATURE (OFF) Select the temperature in which the 3-way valve deenergizes and the unit returns to cooling mode. Once the controller reaches the relay off temperature, the green LED on the controller will turn off. It is recommended that this temperature be set between 50-55°F.
RELAY ON TEMPERATURE (ON) Select the temperature in which the 3-way valve energizes and the unit enters into economizer mode. Once the controller reaches the relay on temperature, the green LED on the controller will turn on. It is recommended that this temperature be set between 40-45°F.
ANTI-SHORT CYCLE DELAY (ASD) Select the minimum time that the output relay remains off (de-energized) before the next on-cycle can begin. Setting an ASD interval overrides the output relay and prevents the 3-way valve from being energized during this time. When the ASD value is greater than 0, the delay interval will begin every time the controller turns on and every time that an off-cycle begins. It is recommended that this be set to 3.
SENSOR FAILURE MODE (SF) Describes the functionality of the control in the event of a sensor failure. Value must be set to 0.

RECOMMENDED CONTROLLER PARAMETERS

PARAMETER CODE

PARAMETER DESCRIPTION

RECOMMENDED PARAMETERS

Relay Off Temperature

Off

Relay On Temperature

Anti-Short Cycle Delay

Sensor Failure Mode

Table 13 WSCM DIP Switch Functions

WSV6 Vertical Series IOM

CONTROLS CONTINUED
WSCM SAFETY FEATURES

CONTROL BOARD LAYOUT LEGEND

INPUT

CONNECTION OR

DESCRIPTION

OUTPUT

-- 24 VAC

-- 24 VAC (Grounded Common)

I Input Call for Compressor

I Input Call for Heating or Emergency Heat

I Input Call for Reversing Valve in Cooling

I Input Call for Fan Operation

AL1

Connect to Thermostat Fault Light 24VAC or Dry Contact Alarm

AL2 A ACC1 ACC2 G1 G2 G3

O Alarm Relay 24VAC or Dry Contact

Output for Water Solenoid Valve Paralleled with Compressor Contactor

ACC1 Output for Accessory Relay 1 24VAC between ACC1 and COM

ACC2 Output for Accessory Relay 2 24VAC between ACC2 and COM

Connection for Fan Relay Low Speed Operation

Connection for Fan Relay Medium Speed Operation

Connection for Fan Relay Large Speed Operation

O Connection for Compressor Contactor

CCG

Compressor Contactor Common Connections

I High Pressure Switch Input Terminals

LOC

I Low Pressure Switch Input Terminals

CO1

Water Coil Low Temperature Thermistor Output

CO2

Air Coil Low Temperature Thermistor Output

Reversing Valve Output Terminals Direct Connect from "O"

COND_SW

I Condensate Overflow Input Terminal

O Output Terminal for Electric Heat

COM

-- Grounded Common

Table 14 Control Board Layout Legend

WSV6 VERTICAL SERIES - IOM

CONTROLLER OPERATION CODES

DESCRIPTION OF OPERATION

LED

READOUT

Normal Mode

ON
(Green Light)

Controller Non Functional

OFF
(Green Light)

Test Mode (pins shorted momentarily)

ON
(Yellow Light)

DESCRIPTION OF OPERATION

CODE

Standby

Fan Only(G active)

Cool (Y1 & O active)

Heat 1st Stage (Y1 active)

Accessory Relay 1

Accessory Relay 2

Vacated Premises Control

Fault Retry

rE & CODE #

Lockout

Lo & CODE #

Over/Under Voltage Shutdown

Ou & CODE #

Temperature Sensor Error

SE & CODE #

DESCRIPTION OF OPERATION

CODE

Test Mode No Fault

Test Mode HP Fault

Test Mode LP Fault

Test Mode CO1 Fault

Test Mode CO2 Fault

Test Mode Cond. Overflow Fault

Test Mode Over/Under Shutdown

Test Mode Swapped CO1/CO2 Thermistors

Table 15 Control Operating Codes

WSV6 Vertical Series IOM

WSV6 VERTICAL SERIES - IOM

CONTROLS CONTINUED
WSCM SAFETY FEATURES

WSCM DIP SWITCH FUNCTIONS

FUNCTION

OFF

DIP SWITCH 1

1.1 Compressor Delay

No Delay 5s Delay

1.2 Motor Type

PSC Motor ECM Motor

1.3 Blower Time Delay

None

45s

1.4 Dehumidification

None

Dehum

1.5 Boilerless

Off

1.6 Boilerless Setpoint

40°F

50°F

1.7 Vacated Premises

1hr

2hr

DIP SWITCH 2

2.1 Accessory Relay Control

With Fan With Comp

2.2 Compressor Delay

None

60s

2.3 Accessory Relay 2 Control With Fan

With Comp

2.4 Fan Delay

None

30s

Table 16 WSCM DIP Switch Functions

CONTROL BOX DETAIL

ASSEMBLY
Once box is removed completely, line up the control panel back in place of the unit and tighten screws on the base plate and on the front panel. Plug back any harnesses previously removed.
REMOVAL
1) Ensure that all electrical power is removed from the unit and that the local disconnect is locked out.
2) Remove the screws on the front electrical panel with a ¼" hex head driver.
3) Remove the electrical front panel and access the electrical box
4) Disconnect electrical harnesses 5) Remove the two ¼" hex header screws holding the
electrical box in place on the bottom and side. Remove electrical box from unit.

Disconnect all power supplies before servicing. Lock out/tag out to prevent accidental electrical shock.

There may be multiple power sources supplying the unit.

FIGURE 18 Control Box Layout

WSV6 Vertical Series IOM

WSV6 VERTICAL SERIES - IOM

PERFORMANCE DATA
BLOWER DATA

MODEL NUMBER WSV6009 WSV6012 WSV6018 WSV6024 WSV6030 WSV6036 WSV6042 WSV6048 WSV6048 ECON WSV6060 WSV6060 ECON WSV6072 WSV6072 ECON

FAN SPEED
WHT VIO GRY WHT VIO GRY T3 T2 T1 T3 T2 T1 T3 T2 T1 T3 T2 T1 T3 T2 T1 T3 T2 T1 T3 T2 T1 T3 T2 T1 T3 T2 T1 T3 T2 T1 T3 T2 T1

BLOWER DATA

RATED

CFM VS. STATIC PRESSURE (in. w.g.)

AIRFLOW 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0

380 360 330 300 270 250 330 360 330 300 260 230
310 290 270 250 470 450 430 400 370 340 310 430 440 410 380 350 320 300 380 360 340 320 300 730 700 660 630 590 550 520 600 610 580 540 500 460 540 510 480 450 900 870 840 810 780 750 720 800 760 740 710 650 610 700 670 630 600 1,160 1,130 1,100 1,070 1,040 1,010 980 950 930 900 925 1,040 1,000 980 940 900 870 840 810 940 910 870 830 800 760 1,380 1,350 1,320 1,290 1,270 1,240 1,210 1,180 1,150 1,120 1150 1,130 1,090 1,060 1,030 1,000 970 1,060 1,030 990 960 1,420 1,400 1,370 1,340 1,320 1,290 1,260 1,230 1,200 1,170 1330 1,330 1,300 1,270 1,240 1,220 1,190 1,160 1,130 1,190 1,160 1,130 1,100 1,660 1,630 1,620 1,580 1,560 1,520 1,490 1,460 1,430 1,400 1500 1,550 1,530 1,510 1,480 1,450 1,420 1,390 1,360 1,330 1,300 1,370 1,350 1,330 1,290 1,260 1,660 1,630 1,620 1,580 1,560 1,520 1,490 1,460 1,430 1,400 1500 1,550 1,530 1,510 1,480 1,450 1,420 1,390 1,360 1,330 1,300 1,370 1,350 1,330 1,290 1,260 2,290 2,250 2,210 2,160 2,120 2,070 2,020 1,970 1,910 1,840 1875 1,920 1,880 1,840 1,790 1,750 1,700 1,650 1,600 1,540 1470 1,820 1,780 1,730 1,690 1,640 1,590 1,550 1,490 1440 1370 2,290 2,250 2,210 2,160 2,120 2,070 2,020 1,970 1,910 1,840 1875 1,920 1,880 1,840 1,790 1,750 1,700 1,650 1,600 1,540 1470 1,820 1,780 1,730 1,690 1,640 1,590 1,550 1,490 1440 1370 2,290 2,250 2,210 2,160 2,120 2,070 2,020 1,970 1,910 1,840 1900 2,140 2,100 2,060 2,010 1,970 1,920 1,870 1820 1760 1690 1,990 1,950 1,910 1,860 1820 1770 1720 1670 1610 1540 2,290 2,250 2,210 2,160 2,120 2,070 2,020 1,970 1,910 1,840 1900 2,140 2,100 2,060 2,010 1,970 1,920 1,870 1820 1760 1690 1,990 1,950 1,910 1,860 1820 1770 1720 1670 1610 1540 Airflow data shown is with a dry coil at 70°F DB EAT and with standard 1" filter.
Table 17 WSV6 Blower Data

FACTORY BLOWER SETTINGS

COOLING
1-10 10+ MIN MIN
X X

HEATING X

WSV6 Vertical Series IOM

WSV6 VERTICAL SERIES - IOM

PERFORMANCE DATA CONTINUED
PRESSURE & TEMPERATURE DATA

Entering Water Temp
°F 20
30
50
70
90
110

Water Flow Rate
GPM 1.1 1.7 2.3 1.1 1.7 2.3 1.1 1.7 2.3 1.1 1.7 2.3 1.1 1.7 2.3 1.1 1.7 2.3

Suction Pressure
psig

WSV6009 PRESSURE & TEMPERATURE DATA

COOLING

Discharge Air Temp

Water

Suction

Pressure

Drop

Temp Rise Pressure

psig

°F

psig

HEATING

Discharge Air Temp

Pressure

Drop

psig

°F

Water Temp Rise
°F

Operation Not Recommended

128-138 137-147 126-136 132-142 130-140 130-140 135-145 134-144 134-144 142-152 140-150 139-149

Operation Not Recommended

61-71

62-72

63-73

214-224

22-28

21-25

83-93

193-203

22-28

13-17

90-100

183-193

22-28

10-14

93-103

284-294

21-27

20-24

118-128

260-270

21-27

13-17

120-130

249-259

21-27

9-13

144-154

367-377

19-25

19-23

159-169

342-352

20-26

12-16

175-185

330-340

20-26

9-13

184-194

468-478

18-24

18-22

442-452

18-24

12-16

430-440

19-25

8-12

Table 18 WSV6009 Pressure & Temperature Data

258-268 262-272 264-274 290-300 296-206 299-309 324-334 335-345 340-350 373-383 383-393 392-402

17-23 18-24 18-24 22-28 24-30 24-30 29-35 30-36 32-38 37-43 39-45 41-47

Operation Not Recommended

7-11 5-9 3-7 9-13 6-10 4-8 13-17 9-13 6-10 17-21 12-16 9-13

WSV6 Vertical Series IOM

WSV6 VERTICAL SERIES - IOM

PERFORMANCE DATA CONTINUED
PRESSURE & TEMPERATURE DATA

Entering Water Temp
°F 20
30
50
70
90
110

Water Flow Rate
GPM 1.5 2.3 3 1.5 2.3 3 1.5 2.3 3 1.5 2.3 3 1.5 2.3 3 1.5 2.3 3

Suction Pressure
psig

WSV6012 PRESSURE & TEMPERATURE DATA

COOLING

Discharge Air Temp

Water

Suction

Pressure

Drop

Temp Rise Pressure

psig

°F

psig

HEATING

Discharge Air Temp

Pressure

Drop

psig

°F

Water Temp Rise
°F

Operation Not Recommended

126-136 125-135 124-134 130-140 128-138 128-138 134-144 133-143 132-142 139-149 138-148 137-147

Operation Not Recommended

59-69

64-57

68-78

215-225

20-26

21-25

85-95

194-204

21-27

13-17

92-102

183-193

21-27

9-13

95-105

284-294

19-25

20-24

121-131

260-270

20-26

13-17

131-141

248-258

20-26

9-13

137-147

366-376

18-24

20-24

163-173

341-351

19-25

13-17

179-189

328-338

19-25

9-13

188-198

466-476

17-23

19-23

439-449

17-23

12-16

426-436

17-23

9-13

Table 19 WSV6012 Pressure & Temperature Data

263-273 268-278 270-280 296-306 303-313 306-316 334-344 345-355 358-368 383-393 401-411 412-422

16-22 17-23 18-24 22-28 23-29 24-30 29-35 31-37 32-38 37-43 40-46 42-48

Operation Not Recommended

7-11 4-8 3-7 9-13 6-10 4-8 13-17 8-12 6-10 16-20 11-15 8-12

WSV6 Vertical Series IOM

WSV6 VERTICAL SERIES - IOM

PERFORMANCE DATA CONTINUED
PRESSURE & TEMPERATURE DATA

Entering Water Temp
°F 20
30
50
70
90
110

Water Flow Rate
GPM 2.3 3.4 4.5 2.3 3.4 4.5 2.3 3.4 4.5 2.3 3.4 4.5 2.3 3.4 4.5 2.3 3.4 4.5

Suction Pressure
psig

WSV6018 PRESSURE & TEMPERATURE DATA

COOLING

Discharge Air Temp

Water

Suction

Pressure

Drop

Temp Rise Pressure

psig

°F

psig

HEATING

Discharge Air Temp

Pressure

Drop

psig

°F

Water Temp Rise
°F

Operation Not Recommended

124-134 123-133 122-132 128-138 127-137 126-136 132-142 131-141 131-141 137-147 136-146 136-146

Operation Not Recommended

62-72

65-75

70-80

212-222

19-25

17-21

95-105

194-204

20-26

11-15

103-113

186-196

20-26

8-12

107-117

282-292

18-24

17-21

132-142

262-272

19-25

10-14

143-153

253-263

19-25

7-11

150-160

367-377

18-24

16-20

178-188

346-356

18-24

10-14

195-205

338-348

18-24

7-11

205-215

471-481

16-22

16-20

449-459

17-23

10-14

442-452

17-23

7-11

Table 20 WSV6018 Pressure & Temperature Data

276-286 282-292 283-293 334-344 344-354 360-360 383-393 399-409 408-418 444-454 466-476 479-489

16-22 17-23 18-24 24-30 26-32 27-33 31-37 33-39 35-41 39-45 42-48 43-49

Operation Not Recommended

7-11 5-9 3-7 9-13 6-10 4-8 12-16 8-12 6-10 16-20 10-14 8-12

WSV6 Vertical Series IOM

WSV6 VERTICAL SERIES - IOM

PERFORMANCE DATA CONTINUED
PRESSURE & TEMPERATURE DATA

Entering Water Temp
°F 20
30
50
70
90
110

Water Flow Rate
GPM 3 4.5 6 3 4.5 6 3 4.5 6 3 4.5 6 3 4.5 6 3 4.5 6

Suction Pressure
psig

WSV6024 PRESSURE & TEMPERATURE DATA

COOLING

Discharge Air Temp

Water

Suction

Pressure

Drop

Temp Rise Pressure

psig

°F

psig

HEATING

Discharge Air Temp

Pressure

Drop

psig

°F

Water Temp Rise
°F

Operation Not Recommended

126-136 125-135 113-123 130-140 129-139 129-139 135-145 134-144 133-143 140-150 139-149 139-149

Operation Not Recommended

56-66

61-71

66-76

202-212

20-26

16-20

93-103

187-197

20-26

10-14

98-108

180-190

20-26

8-12

102-112

271-281

19-25

16-20

130-140

255-265

19-25

10-14

140-150

247-257

19-25

7-11

145-155

357-367

18-24

15-19

176-186

340-350

18-24

10-14

191-201

331-341

18-24

7-11

199-209

461-471

17-23

15-19

443-453

17-23

9-13

434-444

17-23

7-11

Table 21 WSV6024 Pressure & Temperature Data

253-263 256-266 259-269 294-204 300-310 303-313 330-340 339-349 344-354 385-395 388-398 407-417

16-22 17-23 18-24 19-25 20-26 21-27 26-32 27-33 28-34 33-39 35-41 37-43

Operation Not Recommended

6-10 4-8 2-6 7-11 5-9 3-7 11-15 7-11 5-9 14-18 9-13 7-11

WSV6 Vertical Series IOM

WSV6 VERTICAL SERIES - IOM

PERFORMANCE DATA CONTINUED
PRESSURE & TEMPERATURE DATA

Entering Water Temp
°F 20
30
50
70
90
110

Water Flow Rate
GPM 3.8 5.6 7.5 3.8 5.6 7.5 3.8 5.6 7.5 3.8 5.6 7.5 3.8 5.6 7.5 3.8 5.6 7.5

Suction Pressure
psig

WSV6030 PRESSURE & TEMPERATURE DATA

COOLING

Discharge Air Temp

Water

Suction

Pressure

Drop

Temp Rise Pressure

psig

°F

psig

HEATING

Discharge Air Temp

Pressure

Drop

psig

°F

Water Temp Rise
°F

Operation Not Recommended

118-128 116-126 116-126 123-133 121-131 120-130 128-138 126-136 126-136 134-144 133-143 132-142

Operation Not Recommended

53-73

67-77

71-81

218-228

24-30

20-24

93-103

198-208

25-31

13-17

100-110

188-198

25-31

9-13

104-114

289-299

23-29

20-24

130-140

265-275

23-29

13-17

140-150

254-264

23-29

9-13

147-157

375-385

22-28

19-23

173-183

349-359

22-28

12-16

189-199

337-347

22-28

9-13

199-209

478-488

20-26

18-22

452-462

20-26

12-16

439-449

21-27

8-12

Table 22 WSV6030 Pressure & Temperature Data

264-274 267-277 271-281 309-319 317-327 321-331 349-359 361-371 368-378 398-408 416-426 427-437

19-25 20-26 21-27 26-32 27-33 28-34 33-39 36-42 37-43 42-48 45-51 46-52

Operation Not Recommended

7-11 4-8 3-7 9-13 6-10 4-8 12-16 8-12 6-10 16-20 11-15 8-12

WSV6 Vertical Series IOM

WSV6 VERTICAL SERIES - IOM

PERFORMANCE DATA CONTINUED
PRESSURE & TEMPERATURE DATA

Entering Water Temp
°F 20
30
50
70
90
110

Water Flow Rate
GPM 4.5 6.8 9 4.5 6.8 9 4.5 6.8 9 4.5 6.8 9 4.5 6.8 9 4.5 6.8 9

Suction Pressure
psig

WSV6036 PRESSURE & TEMPERATURE DATA

COOLING

Discharge Air Temp

Water

Suction

Pressure

Drop

Temp Rise Pressure

psig

°F

psig

HEATING

Discharge Air Temp

Pressure

Drop

psig

°F

Water Temp Rise
°F

Operation Not Recommended

122-132 120-130 120-130 126-136 125-135 124-134 131-141 129-139 129-139 136-146 135-145 135-145

Operation Not Recommended

62-72

66-76

70-80

221-231

23-29

19-23

93-103

203-213

23-29

12-16

100-110

194-204

23-29

9-13

104-114

294-304

22-28

19-23

130-140

273-283

22-28

12-16

141-151

264-274

22-28

9-13

148-158

382-392

21-27

18-22

175-185

360-370

21-27

12-16

192-202

350-360

21-27

8-12

202-212

489-499

19-25

18-22

466-476

20-26

11-15

457-467

20-26

8-12

Table 23 WSV6036 Pressure & Temperature Data

265-275 269-279 275-285 311-321 319-329 323-333 353-363 365-375 373-383 403-413 421-431 432-442

19-25 20-26 21-27 25-31 26-32 27-33 32-38 34-40 36-42 41-47 43-49 45-61

Operation Not Recommended

7-11 4-8 2-6 9-13 6-10 4-8 13-17 8-12 6-10 16-20 11-15 8-12

WSV6 Vertical Series IOM

WSV6 VERTICAL SERIES - IOM

PERFORMANCE DATA CONTINUED
PRESSURE & TEMPERATURE DATA

Entering Water Temp
°F 20
30
50
70
90
110

Water Flow Rate
GPM 5.3 7.9 10.5 5.3 7.9 10.5 5.3 7.9 10.5 5.3 7.9 10.5 5.3 7.9 10.5 5.3 7.9 10.5

Suction Pressure
psig

WSV6042 PRESSURE & TEMPERATURE DATA

COOLING

Discharge Air Temp

Water

Suction

Pressure

Drop

Temp Rise Pressure

psig

°F

psig

HEATING

Discharge Air Temp

Pressure

Drop

psig

°F

Water Temp Rise
°F

Operation Not Recommended

128-138 127-137 126-136 133-143 131-141 131-141 137-147 136-146 135-145 143-153 141-151 141-151

Operation Not Recommended

58-68

62-72

64-74

226-236

24-30

20-24

89-99

205-215

25-31

13-17

95-105

195-205

25-31

9-13

99-109

298-308

23-29

19-23

126-136

274-284

24-30

12-16

134-144

263-273

24-30

9-13

141-151

385-395

22-28

18-22

170-180

359-369

22-28

12-16

185-195

348-358

23-29

8-12

194-204

489-499

21-27

18-22

463-473

21-27

11-15

451-461

21-27

8-12

Table 23 WSV6042 Pressure & Temperature Data

262-272 266-276 271-281 293-303 299-309 302-312 328-338 336-346 343-353 372-382 387-397 395-405

19-25 20-26 21-27 24-30 25-31 26-32 31-37 33-39 34-40 39-45 42-48 43-50

Operation Not Recommended

5-9 3-7 2-6 8-12 5-9 3-7 11-15 8-12 5-9 15-19 10-14 7-11

WSV6 Vertical Series IOM

WSV6 VERTICAL SERIES - IOM

PERFORMANCE DATA CONTINUED
PRESSURE & TEMPERATURE DATA

Entering Water Temp
°F 20
30
50
70
90
110

Water Flow Rate
GPM 6 9 12 6 9 12 6 9 12 6 9 12 6 9 12 6 9 12

Suction Pressure
psig

WSV6048 PRESSURE & TEMPERATURE DATA

COOLING

Discharge Air Temp

Water

Suction

Pressure

Drop

Temp Rise Pressure

psig

°F

psig

HEATING

Discharge Air Temp

Pressure

Drop

psig

°F

Water Temp Rise
°F

Operation Not Recommended

122-132 120-130 120-130 127-137 125-135 124-134 132-142 130-140 129-139 138-148 136-146 135-145

Operation Not Recommended

65-75

69-79

73-83

222-232

24-30

20-24

104-114

201-211

25-31

13-17

111-121

191-201

25-31

9-13

115-125

293-303

23-29

20-24

144-154

269-279

23-29

13-17

155-165

257-267

24-30

9-13

161-171

380-390

22-28

19-23

193-203

354-364

22-28

12-16

209-219

341-351

22-28

9-13

217-227

485-495

21-27

18-22

457-467

21-27

12-16

444-454

21-27

8-12

Table 24 WSV6048 Pressure & Temperature Data

271-281 275-285 280-290 310-320 316-326 320-330 348-358 359-369 365-375 395-405 411-421 420-430

19-25 20-26 21-27 25-31 26-32 27-33 32-38 34-40 35-41 40-46 42-48 43-50

Operation Not Recommended

7-11 4-8 3-7 9-13 5-9 4-8 12-16 8-12 5-9 15-19 10-14 7-11

WSV6 Vertical Series IOM

WSV6 VERTICAL SERIES - IOM

PERFORMANCE DATA CONTINUED
PRESSURE & TEMPERATURE DATA

Entering Water Temp
°F 20
30
50
70
90
110

Water Flow Rate
GPM 7.5 11.3 15 7.5 11.3 15 7.5 11.3 15 7.5 11.3 15 7.5 11.3 15 7.5 11.3 15

Suction Pressure
psig

WSV6060 PRESSURE & TEMPERATURE DATA

COOLING

Discharge Air Temp

Water

Suction

Pressure

Drop

Temp Rise Pressure

psig

°F

psig

HEATING

Discharge Air Temp

Pressure

Drop

psig

°F

Water Temp Rise
°F

Operation Not Recommended

125-135 123-133 123-133 129-139 128-138 127-137 134-144 133-143 132-142 140-150 139-149 138-148

Operation Not Recommended

58-68

62-72

64-74

220-230

25-31

19-23

91-101

201-211

25-31

12-16

98-108

191-201

25-31

9-13

101-111

290-300

24-30

18-22

128-138

268-278

24-30

12-16

138-148

257-267

24-30

8-12

144-154

377-387

23-29

18-22

172-182

352-362

23-29

11-15

187-197

340-350

23-29

8-12

196-206

480-490

21-27

17-21

455-465

21-27

11-15

443-453

22-28

8-12

Table 25 WSV6060 Pressure & Temperature Data

265-275 269-279 274-284 309-319 316-326 320-330 349-359 361-371 367-377 398-408 415-425 424-434

25-31 26-32 27-33 28-34 29-35 30-36 36-42 38-44 39-45 45-51 48-54 50-56

Operation Not Recommended

7-11 4-8 3-7 9-13 5-9 4-8 12-16 8-12 5-9 15-19 10-14 7-11

WSV6 Vertical Series IOM

WSV6 VERTICAL SERIES - IOM

PERFORMANCE DATA CONTINUED
PRESSURE & TEMPERATURE DATA

Entering Water Temp
°F 20
30
50
70
90
110

Water Flow Rate
GPM 9
13.5 18 9 13.5 18 9 13.5 18 9 13.5 18 9 13.5 18 9 13.5 18

Suction Pressure
psig

WSV6072 PRESSURE & TEMPERATURE DATA

COOLING

Discharge Air Temp

Water

Suction

Pressure

Drop

Temp Rise Pressure

psig

°F

psig

HEATING

Discharge Air Temp

Pressure

Drop

psig

°F

Water Temp Rise
°F

Operation Not Recommended

122-132 121-131 120-130 126-136 125-135 125-135 132-142 130-140 130-140 137-147 136-146 135-145

Operation Not Recommended

56-66

59-69

64-74

219-229

25-31

18-22

85-95

202-212

26-32

12-16

91-101

193-203

26-32

8-12

95-105

288-298

24-30

18-22

119-129

268-278

24-30

11-15

129-139

259-269

25-31

8-12

135-145

373-383

23-29

17-21

160-170

351-361

23-29

11-15

175-185

341-351

23-29

8-12

184-194

474-484

21-27

17-21

451-461

22-28

11-15

441-451

22-28

8-12

Table 26 WSV6072 Pressure & Temperature Data

275-285 281-291 283-293 309-319 316-326 320-330 351-361 363-373 370-380 403-413 422-432 433-443

20-26 22-28 23-29 28-34 29-35 30-36 36-42 38-44 40-46 46-52 49-55 51-57

Operation Not Recommended

5-9 3-7 2-6 8-12 5-9 3-7 11-15 7-11 5-9 14-18 10-14 7-11

WSV6 Vertical Series IOM

WSV6 VERTICAL SERIES - IOM
PERFORMANCE DATA CONTINUED
WATER PRESSURE DROP DATA

WATER FLOW PRESSURE DROP DATA

WSV6009

Flow Rate (GPM)

1.0 2.0 3.0 4.0 5.0 6.0 7.0

Pressure Drop 0.2 0.9 1.9 3.0 4.5 6.3 8.2

WSV6012

Flow Rate (GPM)

2.0 3.0 4.0 5.0 6.0 7.0 8.0

Pressure Drop 1.0 2.0 3.3 4.8 6.6 8.7 10.9

WSV6018

Flow Rate (GPM)

2.0 3.0 4.0 5.0 6.0 7.0 8.0

Pressure Drop 1.0 2.0 3.3 4.8 6.6 8.7 10.9

WSV6024

Flow Rate (GPM)

5.0 6.0 7.0 8.0 9.0 10.0 11.0

Pressure Drop 1.4 2.0 2.6 3.3 4.1 5.0 6.0

WSV6030

Flow Rate (GPM)

6.0 7.0 8.0 9.0 10.0 11.0 12.0

Pressure Drop 2.3 3.0 3.9 4.8 5.8 6.9 8.0

WSV6036

Flow Rate (GPM)

6.0 8.0 10.0 12.0 14.0 16.0 18.0

Pressure Drop 1.1 1.9 2.8 4.0 5.2 6.7 8.2

WSV6042

Flow Rate (GPM)

7.0 9.0 11.0 13.0 15.0 17.0 19.0

Pressure Drop 1.4 2.1 3.0 4.1 5.2 6.6 8.0

WSV6048

Flow Rate (GPM)

12.0 14.0 16.0 18.0 20.0

Pressure Drop 2.6 3.5 4.7 5.9 7.4

WSV6048 ECONOMIZER

Flow Rate (GPM)

12.0 14.0 16.0 18.0 20.0

Pressure Drop 6.5 8.8 11.8 14.8 18.5

WSV6060

Flow Rate (GPM)

12.0 14.0 16.0 18.0 20.0 22.0 24.0

Pressure Drop 2.6 3.3 4.2 5.1 6.2 7.3 8.5

WSV6060 ECONOMIZER

Flow Rate (GPM)
Pressure Drop

12.0 6.0

14.0 8.2

16.0 10.6

18.0 13.4

20.0 16.5

22.0 19.9

24.0 23.7

WSV6072

Flow Rate (GPM)

12.0 14.0 16.0 18.0 20.0 22.0 24.0

Pressure Drop 2.6 3.3 4.2 5.1 6.2 7.3 8.5

WSV6072 ECONOMIZER

Flow Rate (GPM)
Pressure Drop

12.0 6.0

14.0 8.2

16.0 10.6

18.0 13.4

20.0 16.5

22.0 19.9

24.0 23.7

Table 27 Pressure Drop Data

WSV6 Vertical Series IOM

4 9

WSV6 VERTICAL SERIES - IOM

WSV6009-12 WIRING DIAGRAM (208-230V)
FIGURE 19 WSV6009-12 (208-230V)* Wiring Diagram

WSV6 Vertical Series IOM

WIRING DIAGRAMS

WSV6 VERTICAL SERIES - IOM
WIRING DIAGRAMS

WSV6009-12 WIRING DIAGRAM (265V)
FIGURE 20 WSV6009-12 (265V) Wiring Diagram

WSV6 Vertical Series IOM

5 1

WSV6 VERTICAL SERIES - IOM

WSV6018-72 WIRING DIAGRAM (208-230V)
FIGURE 21 WSV6018-72 (208-230V) Wiring Diagram

WSV6 Vertical Series IOM

WIRING DIAGRAMS

WSV6 VERTICAL SERIES - IOM
WIRING DIAGRAMS

WSV6018-72 WIRING DIAGRAM (265V)
FIGURE 22 WSV6018-72 (265V) Wiring Diagram

WSV6 Vertical Series IOM

5 3

WSV6 VERTICAL SERIES - IOM

WSV6024-72 WIRING DIAGRAM (208-230-460V / 3Ph)
FIGURE 23 WSV6024-72 (208-230-460V / 3Ph) Wiring Diagram

WSV6 Vertical Series IOM

WIRING DIAGRAMS

WSV6 VERTICAL SERIES - IOM
WIRING DIAGRAMS

WSV6048-72 ECONOMIZER WIRING DIAGRAM (208-230V)
FIGURE 24 WSV6048-72 ECONOMIZER (208-230V) Wiring Diagram

WSV6 Vertical Series IOM

5 5

WSV6 VERTICAL SERIES - IOM

WSV6048-72 ECONOMIZER WIRING DIAGRAM (208-230-460V / 3Ph)
FIGURE 25 WSV6048-72 ECONOMIZER (208-230-460V / 3Ph) Wiring Diagram

WSV6 Vertical Series IOM

WIRING DIAGRAMS

WSV6 VERTICAL SERIES - IOM
CIRCUIT SCHEMATIC

FIGURE 26 - Circuit Diagram

WSV6 Vertical Series IOM

CIRCUIT SCHEMATIC HGRH

WSV6 VERTICAL SERIES - IOM

FIGURE 27 - Circuit Diagram HGRH

STARTUP INSTRUCTIONS
PRE-STARTUP CHECKS:

Electrically ground the unit. Connect ground wire to ground lug. Failure to do so can result in injury or death.

Wire any field installed device such as a fan switch or thermostat furnished by the factory in strict accordance with the wiring diagram supplied with the unit. Failure to do so could result in damage to components and will void all warranties.
Before start-up, thoroughly check all the components. Optimal operation of equipment requires cleanliness. Often after installation of the equipment, additional construction

activities occur. Protect the equipment from debris during these construction phases.
PRIOR TO THE STARTUP OF THE UNIT:
1. Ensure supply voltage matches nameplate data. 2. Ensure the unit is properly grounded 3. With the power off, check blower wheel set screws
for proper tightness and that the blower wheel rotates freely. 4. Ensure unit will be accessible for servicing. 5. Ensure condensate line is properly sized, run, trapped, pitched and tested. 6. Ensure all cabinet openings and wiring connections have been sealed. 7. Ensure clean filters are in place. 8. Ensure all access panels are in place and secured.

WSV6 Vertical Series IOM

WSV6 VERTICAL SERIES - IOM

STARTUP INSTRUCTIONS CONTINUED

PRIOR TO THE STARTUP OF THE UNIT:
9. Check that the water coil and piping had been leak checked and insulated as required.
10. Ensure that all air has been vented from the water coil.
11. Make sure that all electrical connections are tight and secure.
12. Check the electrical overcurrent protection and wiring for the correct size.
13. Verify that the low voltage wiring between the thermostat and the unit matches the wiring diagram.
14. Verify that the water piping is complete and correct.
15. Check condensate overflow sensor for proper operation and adjust position if required. Ensure that power is connected to the unit and the local disconnect is switched to ON position.

11. Check for vibrations, leaks, etc. 12. Verify water flow rate is correct according to
specification. Adjust if necessary. If specification is not available, the nominal flow rate for this unit is 25 GPM. 13. Instruct the owner on the unit and thermostat operation.
STARTUP & PERFORMANCE
CHECKLIST INSTRUCTIONS
The warranty may be void unless the FIGURE 28 Startup & Performance Checklist. is completed and returned to the warrantor. If the WSV6 unit is not installed properly, the warranty will be void, as the manufacturer cannot be held accountable for problems that stem from improper installation.

UNIT STARTUP:
1. Turn the disconnect switch to ON position. 2. Check for 24 volt from control transformer.
Controller module LED should light up. If not, the power supply lines are out of phase. Turn of the main power disconnect to the unit off and change the phase.by switching any two incoming wires. 3. Set the thermostat to the lowest position. Turn the system switch to "COOL" and the fan switch to "AUTO" position. The reversing valve should energize. 4. After 5 minutes (anti-short cycle protect delay), the fan start at low speed and the compressor is running. 5. Make sure that compressor rotation is correct. If not, turn the power off and make the correction. This is 3-phase unit. Switching compressor rotation could be done by switching any two of compressor wires. 6. Turn the thermostat system to "OFF" position. The unit should stop running and the reversing valve de-energizes. 7. Leave the unit off for approximately 5 minutes to allow the system pressures to equalize. Anti-short cycle feature built in the system will keep the compressor off for 5 minutes. 8. Set the thermostat to the highest setting. Turn the system switch to "HEAT" position. 9. Verify that the unit is operating to the heating mode. 10. Set the thermostat to maintain the desired space temperature.

WSV6 Vertical Series IOM

MAINTENANCE & SERVICE
PREVENTIVE MAINTENANCE
To achieve maximum performance and service life of equipment, a formal schedule of regular maintenance should be established and adhered to.

All appropriate personal protection equipment should be worn when servicing or maintaining this unit. Personal injury can result from sharp metal edges, moving parts, and hot or cold surfaces.
FAN
The fan should be inspected and cleaned annually in conjunction with maintenance of the motor and bearings. It is important to keep the fan section and motor clean and free from obstruction to prevent imbalance, vibration, and improper operation.

Check motor connections to ensure they are secure and in accordance with the unit wiring diagram. ECM motors have line voltage power applied at all times. MAKE SURE POWER IS DISCONNECTED BEFORE SERVICING.
FILTER
The air filter should be cleaned or replaced every 30 days or more frequently if severe operating conditions exist. Always replace the filter with the same type and size as originally furnished.
COIL
Clean all heat transfer surfaces and remove all dirt, dust, and contaminates that potentially impairs air flow using industry accepted practices. Care should be taken not to bend coil fin material.
CONDENSATE DRAIN PAN AND PIPE
Check and clean all dirt and debris from pan. Ensure drain line is free flowing and unobstructed.
MAINTENANCE UPDATES
Check regularly for a current copy of the maintenance program log, which can be found at under "product information".
WSV6 Vertical Series IOM

WSV6 VERTICAL SERIES - IOM
CLEANING/FLUSHING
Before the unit is connected to the supply water, the water circulating system must be cleaned and flushed to remove any dirt or debris for the system.
1. Connect the supply and return water lines together in order to bypass the unit. This will prevent dirt or debris from getting into the system during the flushing process.
2. Start the main water circulating pump and allow for water to circulate in the system. Open drains at the lowest point in the system and drain out the water while simultaneously filling the loop with city water. Continue to exchange the loop water with the city water for a minimum of two hours, or until drain water is clear. During this time, check to make sure there are no leaks within the system.
3. Open all drains and vents to drain water system and refill with clean water. Test the system water quality and treat as necessary in order to bring water quality to within requirements for the system. Water PH level should be 7.5 to 8.5. Antifreeze may be added if required.
4. Connect the water-source heat pump supply and return lines, following proper installation procedures outlined in the piping installation section. After the installation has been checked for leaks, bring the water-loop to the desired set point and vent any air within the loop.
UNIT PERFORMANCE
Record performance measurements of volts, amps and water temperature differences (both heating and cooling). A comparison of logged data with start-up and other annual data is useful as an indicator of general equipment condition.
UNIT LOCKOUT
Air or water problem could cause periodic lockouts. The lockout (shutdown) of the units is a normal protective result. Check for dirt in the water system, water flow rates, water temperatures, airflow rates (may be caused by dirty filter) and air temperatures.
LABORATORY TESTING
When the unit has less than 100 operational hours and the coils have not had sufficient time to be "seasoned", it is necessary to clean the coils with a mild surfactant such as Calgon to remove the oils left by manufacturing processes.
59

WSV6 VERTICAL SERIES - IOM

TROUBLESHOOTING

PROBLEM
ENTIRE UNIT DOES NOT RUN
BLOWER OPERATES BUT COMPRESSOR DOES NOT RUN
UNIT OFF ON HIGH PRESSURE
CONTROL FAULT CODE 12
UNIT OFF ON LOW PRESSURE
CONTROL FAULT CODE 13

POSSIBLE CAUSE

CHECKS & CORRECTIONS

Power supply off

Apply power; close disconnect.

Blown Fuse

Replace fuse or reset circuit breaker. Check for correct fuses.

Voltage supply low

If voltage is below minimum voltage specified on unit dataplate,
contact lower power company. (Fault Code Ou & 17). Set the fan to "ON", the fan should run. Set thermostat to "COOL" and

lowest temperature setting, the unit should run in the cooling mode (reversing valve energized). Set unit to "HEAT" and the highest

temperature setting, the unit should run in the heating mode. If

Thermostat

neither the blower nor compressor run in all three cases, the thermostat could be mis-wired or faulty. To ensure mis-wired or faulty

thermostat verify 24 volts is available on the condenser section low voltage terminal strip between "R" and "C", "Y" and "C", and "O" and "C". If blower does not operate, verify 24 colts between terminals "G" and "C" in the air handler. Replace the thermostat if defective.

Thermostat

Check setting, calibration and wiring.

Wiring

Check for loose or broken wires at compressor, capacitor or contractor.

Safety Controls

Check control board fault LED for fault code.

Compressor overload open

If the compressor is cool and the overload will not reset, replace the compressor.

Compressor motor

Internal wiring grounded to the compressor shell. Replace compressor.

grounded

If compressor burnout, install new filter dryer.

Compressor windings open

After compressor has cooled, check continually of compressor windings. If the windings are open, replace the compressor.

In "COOLING" mode: Lack of or inadequate water flow. Entering water

temperature too warm. Scaled or restricted water to refrigerant heat

Discharge pressure too high

exchanger. In "HEATING" mode: Lack of or inadequate water flow. Entering water

temperature too cold. Scaled or restricted water to refrigerant heat

exchanger.

Refrigerant charge

The unit is overcharged with refrigerant. Reclaim refrigerant, evacuate and recharge with factory recommended charge.

High pressure switch

Check for defective or improperly calibrated high pressure switch. In "COOLING" mode: Lack of or inadequate airflow. Entering air

temperature too cold. Blower inoperative, clogged filter or restriction

Suction Pressure too low

in ductwork. In "HEATING" mode: Lack of or inadequate water flow. Entering water

temperature too cold. Scaled or restricted water to refrigerant heat

exchanger.

Refrigerant charge

The unit is low on refrigerant. Check for refrigerant leak, repair, evacuate and recharge with factor recommended charge.

Low pressure switch

Check for defective or improperly calibrated low pressure switch.
Table 28 Troubleshooting Table

WSV6 Vertical Series IOM

WSV6 VERTICAL SERIES - IOM

TROUBLESHOOTING CONTINUED

PROBLEM UNIT SHORT
CYCLES
INSUFFICIENT COOLING OR
HEATING

POSSIBLE CAUSE

CHECKS & CORRECTIONS

Unit oversized

Recalculate heating and cooling loads.

Thermostat

Thermostat installed near a supply air register, relocate thermostat. Check heat anticipator.

Wiring and controls

Loose connections in the wiring or a defective compressor contactor.

Unit undersized

Recalculate heating and cooling loads. If not excessive, possibly adding insulation will rectify the situation.

Loss of conditioned air by Check for leaks in ductwork or introduction of ambient air through

leaks

doors or windows.

Airflow

Lack of adequate airflow or improper distribution of air. Replace dirty air filter.

Refrigerant charge

Low on refrigerant charge causing inefficient operation.

Check for defective compressor. If discharge is too low and suction

Compressor

pressure is too high, compressor is not pumping properly. Replace

compressor.

Defective reversing valve creating bypass of refrigerant from

Reversing valve

discharge to suction side of compressor. Discharge is too low and

suction is too high. Replace reversing valve.

Operating pressures

Compare unit operating pressures to the pressure / temperature chart for the unit.

Refrigerant metering

Check for possible restriction or defect. Replace is necessary.

device

Moisture, noncondensables

The refrigerant system may be contaminated with moisture or noncondensables. Reclaim refrigerant, evacuate and recharge with factory recommended charge. Replace filter dryer.
Table 29 Troubleshooting Table Continued

WSV6 Vertical Series IOM

WSV6 VERTICAL SERIES - IOM

SUPPORT/REFERENCE MATERIAL

REFERENCE CALCULATIONS

HEATING

LDB = EDB +

QH GPM x 500

LWT = EAT +

QA cfm x 1.08

COOLING

LDB = EDB

cfm x 1.08

QR LWT = EWT +
GPM x 500 LC = QC SC

SC SHR =
QC

COMMON CONVERSIONS

Air Flow Water Flow Static Pressure Water Pressure Drop Temperature Power Weight Weight EER COP

I/s = CFM x .47 I/s = GPM x .06 Pa = IWC x 249 FOH = PSI x 2.3 °C = (°F 32) x 5/9 kW = Btuh / 3412 oz = lb x 16 kg = lb / 2.2 COP x 3.413 EER / 3.413

ABBREVIATIONS & DEFINITIONS
LDB = Leaving air temperature dry bulb °F EDB = Entering air temperature dry bulb °F GPM = Water flow rate gallons per minute CFM = Airflow rate cubic feet per minute QH = Heating capacity Btuh QA = Heat of absorption Btuh SC = Sensible cooling capacity Btuh QR = Heat of rejection Btuh LC = Latent cooling capacity Btuh SHR = Sensible heat ratio

WSV6 Vertical Series IOM

STARTUP & PERFORMANCE CHECKLIST

WSV6 VERTICAL SERIES - IOM

FIGURE 28 Startup & Performance Checklist

WSV6 Vertical Series IOM

WSV6 VERTICAL SERIES - IOM
NOTES

WSV6 Vertical Series IOM

NOTES

WSV6 VERTICAL SERIES - IOM

WSV6 Vertical Series IOM

P.O. Box 270969 Dallas, TX 75227 www.firstco.com or www.ae-air.com
The manufacturer works to continually improve its products. It reserves the right to change design and specifications without notice. ©2023 First Co., Applied Environmental Air

References

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