Bryant 615AHA High Wall Ductless System Installation Instructions

Safety Considerations

Installing, starting up, and servicing air-conditioning equipment can be hazardous due to system pressures, electrical components, and equipment location (roofs, elevated structures, etc.). Only trained, qualified installers and service mechanics should install, start-up, and service this equipment.

Untrained personnel can perform basic maintenance functions such as coil cleaning. All other operations should be performed by trained service personnel only.

When working on the equipment, observe the precautions in the literature and on tags, stickers, and labels attached to the equipment.

Follow all safety codes. Wear safety glasses and work gloves. Keep a quenching cloth and a fire extinguisher nearby when brazing. Use care in handling, rigging, and setting bulky equipment.

Read these instructions thoroughly and follow all warnings or cautions included in the literature and attached to the unit. Consult local building codes and National Electrical Code (NEC) for special requirements. Recognize safety information.

⚠️ This is the safety-alert symbol. When you see this symbol on the unit and in instructions or manuals, be alert to the potential for personal injury. Understand these signal words: DANGER, WARNING, and CAUTION. These words are used with the safety-alert symbol.

DANGER identifies the most serious hazards which will result in severe personal injury or death.

WARNING signifies hazards which could result in personal injury or death.

CAUTION is used to identify unsafe practices which may result in minor personal injury or product and property damage.

NOTE is used to highlight suggestions which will result in enhanced installation, reliability, or operation.

Symbols Displayed on the Unit

WARNING – Risk of Fire due to Flammable Refrigerant Used. Follow Handling Instructions Carefully in Compliance with National Regulations.

ELECTRICAL SHOCK HAZARD: Failure to follow this warning could result in personal injury or death. Before installing, modifying, or servicing the system, the main electrical disconnect switch must be in the OFF position. There may be more than 1 disconnect switch. Lock out and tag switch with a suitable warning label.

EXPLOSION HAZARD: Failure to follow this warning could result in death, serious personal injury, and/or property damage. Never use air or gases containing oxygen for leak testing or operating refrigerant compressors. Pressurized mixtures of air or gases containing oxygen can lead to an explosion.

EQUIPMENT DAMAGE HAZARD: Failure to follow this caution may result in equipment damage or improper operation. Do not bury more than 36 in. (914 mm) of refrigerant pipe in the ground. If any section of pipe is buried, there must be a 6 in. (152 mm) vertical rise to the valve connections on the outdoor units. If more than the recommended length is buried, refrigerant may migrate to the cooler buried section during extended periods of system shutdown. This causes refrigerant slugging and could possibly damage the compressor at start-up.

This appliance is not intended for use by persons (including children) with reduced physical, sensory or mental capabilities, or lack of experience and knowledge, unless they have been given supervision or instruction concerning use of the appliance by a person responsible for their safety. Children should be supervised to ensure that they do not play with the appliance.

Safety Considerations (Continued)

FOR FLAMMABLE REFRIGERANTS: Do not use means to accelerate the defrosting process or to clean, other than those recommended by the manufacturer. The appliance shall be stored in a room without continuously operating ignition sources (for example: open flames, an operating gas appliance or an operating electric heater). Do not pierce or burn. Be aware that refrigerants may not contain an odor.

Only use the specified wire. If the wire is damaged, it must be replaced by the manufacturer, its service agent or similarly qualified persons in order to avoid a hazard. The product must be properly grounded at the time of installation, or electric shock may occur.

For all electrical work, follow all local and national wiring standards, regulations, and the Installation Manual. Connect the cables tightly, and clamp them securely to prevent external forces from damaging the terminal. Improper electrical connections can overheat and cause fire, and may also cause shock. All electrical connections must be made according to the Electrical Connection Diagram located on the panels of the indoor and outdoor units.

All wiring must be properly arranged to ensure that the control board cover can close properly. If the control board cover is not closed properly, it can lead to corrosion and cause the connection points on the terminal to heat up, catch fire, or cause electrical shock.

Disconnection must be incorporated in the fixed wiring in accordance with NEC, CSA and Local Codes. Do not share the electrical outlet with other appliances. Improper or insufficient power supply can cause fire or electric shock.

If connecting power to fixed wiring, an all-pole disconnection device which has at least 3mm clearances in all poles, and have a leakage current that may exceed 10mA, the residual current device (RCD) having a rated residual operating current not exceeding 30mA, and disconnection must be incorporated in the fixed wiring in accordance with NEC, CSA and Local Codes.

Turn off the air conditioner and disconnect the power before performing any installation or repairing. Failure to do so can cause electric shock.

Installation must be performed by an authorized dealer or specialist. Defective installation can cause water leakage, electrical shock, or fire. Installation must be performed according to the installation instructions.

Improper installation can cause water leakage, electrical shock, or fire. Contact an authorized service technician for repair or maintenance of this unit. This appliance shall be installed in accordance with national wiring regulations.

Only use the included accessories, parts, and specified parts for installation. Using non-standard parts can cause water leakage, electrical shock, fire, and can cause the unit to fail.

Install the unit in a firm location that can support the unit's weight. If the chosen location cannot support the unit's weight, or the installation is not done properly, the unit may drop and cause serious injury and damage. Install drainage piping according to the instructions in this manual. Improper drainage may cause water damage to your home and property. For units that have an auxiliary electric heater, do not install the unit within 3 feet (1 meter) of any combustible materials.

If combustible gas accumulates around the unit, it may cause fire. Do not turn on the power until all work has been completed.

When moving or relocating the air conditioner, consult experienced service technicians for disconnection and re-installation of the unit. Read the information for details in "indoor unit installation" and "outdoor unit installation" sections.

NOTE: The air conditioner's circuit board (PCB) is designed with a fuse to provide overcurrent protection. The specifications of the fuse are printed on the circuit board, for example: T3.15AL/250VAC, T5AL/250VAC, T3.15A/250VAC, T5A/ 250VAC, T20A/250VAC, T30A/250VAC, etc.

NOTE: Only a blast-proof ceramic fuse can be used.

PERSONAL INJURY AND PROPERTY DAMAGE HAZARD: For continued performance, reliability, and safety, the only approved accessories and replacement parts are those specified by the equipment manufacturer. The use of non-manufacturer approved parts and accessories could invalidate the equipment limited warranty and result in a fire risk, equipment malfunction, and failure. Review the manufacturer's instructions and replacement parts catalogs available from your equipment supplier.

Refrigerant and Installation Requirements

Installation Requirements

Any person involved with working on or breaking into a refrigerant circuit should hold a current valid certificate from an industry-accredited assessment authority, which authorizes their competence to handle refrigerants safely in accordance with an industry recognized assessment specification.

Maintenance and repair requiring the assistance of other skilled personnel shall be carried out under the supervision of the person competent in the use of flammable refrigerants.

The installation of pipe-work shall be kept to a minimum. Pipe-work shall be protected from physical damage. Where refrigerant pipes shall be compliance with national gas regulations. That mechanical connections shall be accessible for maintenance purposes.

Be careful that foreign matter (oil, water, etc.) does not enter the piping. When storing the piping, securely seal the opening by pinching, taping, etc. All working procedures that affect safety means shall only be carried out by competent persons.

Appliances shall be stored in a well-ventilated area where the room size corresponds to the room area as specific for operation.

Joints shall be tested with detection equipment with a capability of 1/8 oz (5g)/year of refrigerant or better, with the equipment in standstill and under operation or under a pressure of at least these standstill or operation conditions after installation. In cases that require mechanical ventilation, ventilation openings shall be kept clear of obstruction.

LEAK DETECTION SYSTEM: If installed, and the refrigerant sensor detects leakage, the indoor unit displays an error code and emits a buzzing sound. The outdoor unit compressor stops immediately, and the indoor fan runs. The sensor's service life is 15 years. If it malfunctions, the indoor unit displays error code FHCC. Refer to the service manual for details. The sensor cannot be repaired and must be replaced by the manufacturer or specified sensor.

Flammable Refrigerant Requirements

Requirements for installation space and/or ventilation are determined by:

• The refrigerant charge used in the appliance.
• The installation location.
• The type of ventilation of the location or of the appliance.

Piping material, pipe routing, and installation shall include protection from physical damage in operation and service, and comply with national and local codes and standards, such as ASHRAE 15, IAPMO Uniform Mechanical Code, ICC International Mechanical Code, or CSA B52. All field joints shall be accessible for inspection prior to being covered or enclosed.

Protection devices, piping, and fittings shall be protected against adverse environmental effects, such as water collecting and freezing in relief pipes or the accumulation of dirt and debris.

Piping in refrigeration systems must be designed and installed to minimize the likelihood of hydraulic shock damaging the system.

Steel pipes and components shall be protected against corrosion with a rustproof coating before applying any insulation.

Precautions shall be taken to avoid excessive vibration or pulsation.

The minimum floor area of the room shall be mentioned in the form of a table or a single figure without reference to a formula.

After completion of field piping for split systems, the field pipework shall be pressure tested with an inert gas and then vacuum tested prior to refrigerant charging, according to the following requirements:

• The required nitrogen test pressure is 500 PSI.
• The test pressure after removal of the pressure source shall be maintained for at least 1 hour with no decrease of pressure indicated by the test gauge, with test gauge resolution not exceeding 5% of the test pressure.
• During the evacuation test, after achieving a vacuum level specified in the manual or less, the refrigeration system shall be isolated from the vacuum pump and the pressure shall not rise above 1500 microns within 10 min. The vacuum pressure level shall be specified in the manual, and shall be the lesser of 500 microns or the value required for compliance with national and local codes and standards.

Field-made refrigerant joints indoors shall be tightness tested according to the following requirements: The test method shall have a sensitivity of 1/8 oz (5 g) per year of refrigerant or better under a pressure of at least 125% of the maximum allowable pressure. No leak shall be detected.

Qualification of Workers

Any maintenance, service, and repair operations must be performed by skilled and authorized personnel. Every working procedure that affects safety means shall only be carried out by competent persons who have joined training and achieved competence, documented by a certificate. Training is carried out by national training organizations or manufacturers accredited to teach relevant national competency standards.

Examples of such working procedures include:

• Breaking into the refrigerating circuit.
• Opening of sealed components.
• Opening of ventilated enclosures.

Ventilated Area

Ensure that the area is in the open or adequately ventilated before breaking into the system or conducting any hot work. A degree of ventilation shall continue during the work. Ventilation should safely disperse any released refrigerant and preferably expel it externally into the atmosphere.

Cabling

Check that cabling is not subjected to wear, corrosion, excessive pressure, vibration, sharp edges, or any other adverse environmental effects. The check shall also take into account the effects of aging or continual vibration from sources such as compressors or fans.

Detection of Flammable Refrigerants

Under no circumstances shall potential sources of ignition be used in the searching for or detection of refrigerant leaks. A halide torch (or any other detector using a naked flame) shall not be used.

Acceptable leak detection methods include:

• Electronic leak detectors with a sensitivity of 1/8 Oz (5g)/year. Equipment shall be calibrated in a refrigerant-free area. Ensure the detector is not a potential source of ignition and is suitable for the refrigerant used. Leak detection equipment shall be set at a percentage of the LFL of the refrigerant and calibrated to the refrigerant employed (25% maximum).
• Leak detection fluids are also suitable for use in external leak detection (e.g., bubble method, fluorescent method agents).

If a leak is suspected, all open flames shall be removed/extinguished. If a leakage of refrigerant requires brazing, all refrigerant shall be recovered from the system, or isolated (by means of shut-off valves) in a part of the system remote from the leak.

Evacuation

When breaking into the refrigerant circuit for repairs or any other purpose, conventional procedures shall be used. However, for flammable refrigerants, best practice must be followed due to flammability considerations. The following procedure shall be adhered to:

• Safely recover refrigerant following local and national regulations.
• Evacuate.
• Purge the circuit with NITROGEN.
• Evacuate (requirement).
• Continuously flush or purge with NITROGEN when using flame to open circuit.
• Open the circuit.

The refrigerant charge shall be recovered into the correct recovery cylinders. Charging must be performed by the liquid charging method. For appliances containing flammable refrigerants, the system shall be purged with oxygen-free nitrogen to render the appliance safe for flammable refrigerants. This process might need to be repeated several times. Compressed air or oxygen shall not be used for purging refrigerant systems.

For appliances containing flammable refrigerants, purging shall be achieved by breaking the vacuum in the system with oxygen-free nitrogen and continuing to fill until the working pressure is achieved, then venting to atmosphere, and finally pulling down to a vacuum (requirement). This process shall be repeated until no refrigerant is within the system (requirement). When the final oxygen-free nitrogen charge is used, the system shall be vented down to atmospheric pressure to enable work to take place. The outlet for the vacuum pump shall not be close to any potential ignition sources, and ventilation shall be available.

Recovery: When removing refrigerant from a system for servicing or decommissioning, it is recommended good practice that all refrigerants are removed safely. When transferring refrigerant into cylinders, ensure that only appropriate refrigerant recovery cylinders are employed. Ensure that the correct number of cylinders for holding the total system charge is available. All cylinders to be used are designated.

Charging Procedures

In addition to conventional charging procedures, the following requirements shall be followed:

• Works shall be undertaken with appropriate tools only (in case of uncertainty, consult the manufacturer of the tools for use with flammable refrigerants).
• Ensure that contamination of different refrigerants does not occur when using charging equipment. Hoses or lines shall be as short as possible to minimize the amount of refrigerant contained in them.
• Charging must be performed by the liquid charging method.
• Ensure that the refrigeration system is grounded prior to charging the system with refrigerant.
• Label the system when charging is complete (if not already).
• Extreme care shall be taken not to overfill the refrigeration system.
• Prior to recharging the system, it shall be pressure tested with oxygen-free nitrogen (OFN).
• The system shall be leak tested on completion of charging but prior to commissioning. A follow-up leak test shall be carried out prior to leaving the site.

Accessories and Specifications

Accessories

The system is shipped with the following accessories. Use all of the installation parts and accessories to install the system. Improper installation may result in water leakage, electrical shock and fire, or cause the equipment to fail. Keep the installation manual in a safe place and do not discard any other accessories until the installation has been completed.

NOTE: In North America market, when 33K hyper heat indoor unit matches with multi-zone condensers, you must purchase pipe with liquid side 3/8in (9.52mm) and gas side 5/8in (16mm). The transfer connector must be installed on the indoor unit gas side to meet the pipe size.

NOTE: Used to connect the connecting pipe between the indoor and outdoor units.

Pipe Specification

Model Numbers and Capacity

Model Numbers

NOTE: *Unit is a compatible match with the 37MARAQ12AA1 115 V heat outdoor unit.

Capacity

Dimensions and Electrical Data

Dimensions

Fig. 2 -- Dimensions

Electrical Data

LEGEND: FLA - Full Load Amps, MCA - Minimum Circuit Amps, MOP - Maximum Overcurrent Protection

Installation Overview

Parts List

[Diagram: Illustration of indoor and outdoor units with numbered parts: 1. Wall Mounting Plate, 2. Front Panel, 3. Louver, 4. Air Filter, 5. Drain Pipe, 6. Connection Cable, 7. Refrigerant Piping, 8. Remote Controller, 9. Remote Controller Holder, 10. Outdoor Unit Power Cable]

Recommended Tools

[Diagram: Icons for Gloves, Screwdriver & wrench, Hammer drill, Core drill, Goggles & masks, Vinyl tape]

Installation Summary

Step 1: Select Installation Location

[Diagram: Illustration showing required clearances around the indoor unit for installation.]

Key Requirements:

• Good air circulation.
• Convenient drainage.
• Noise from the unit will not disturb other people.
• A location at least 3.2 ft (1m) from all other electrical devices (e.g., TV, radio, computer).
• Firm and solid location that will not vibrate.
• Strong enough to support the weight of the unit.

Clearance Notes:

• If not using the kick stand: Finish pipe and cable connections before mounting. If installation height is limited, 1.96in (5cm) from the ceiling is allowable, but may lower performance. Ensure at least 3.93in (10cm) or more from the ceiling for air filter access.
• If using the kick stand: Minimum distance from ceiling is 8.67in (22cm) or more if the front panel is open. If the front panel is removed, minimum distance is 4.33in (11cm) or more.

DO NOT install unit in the following locations:

• Near any source of heat, steam, or combustible gas.
• Near flammable items such as curtains or clothing.
• Near any obstacle that might block air circulation.
• Near the doorway.
• In a location subject to direct sunlight.

NOTE: If no fixed refrigerant piping is present, ensure ample room for a wall hole for signal cable and refrigerant piping. Default piping is on the right side, but can accommodate left and right.

Step 2: Drill Wall Hole for Connecting Piping

Determine Wall Hole Location:

The wall hole size depends on the connecting pipes:

• For gas side connecting pipe 5/8" (16mm) or more: use a 3.54in (90mm) hole.
• For connecting pipe less than 5/8" (16mm): use a 2.5in (65mm) hole.

[Diagram: Illustration showing how to remove a screw from the mounting plate.]

[Diagram: Illustration showing how to secure the mounting plate to the wall and correct orientation.]

Confirm the mounting plate and determine the wall hole location based on its position. The dotted rectangular box in the diagram shows the product size.

CAUTION: The mounting plate has a bubble level for installation convenience. If it breaks, clean up the leaking liquid.

[Diagram: Illustrations showing rulers and mounting plates for different models, indicating pipe hole locations.]

Step 3: Install Refrigerant Pipe & Drain Hose

Prepare Refrigerant Piping:

Choose the side for piping exit based on the wall hole position relative to the mounting plate (four options available).

NOTE: In some US locations, a conduit tube is required. For proper pipe running and wall clearance, it's recommended to attach the drain hose to the right-hand side. Ensure pipes exit horizontally to avoid affecting the lower panel installation.

[Diagram: Illustration showing piping exit options: left-hand side, right-hand side, left rear, right rear.]

If the wall hole is behind the unit, keep the knock-out panel in place. If the hole is to the side, remove the plastic knock-out panel from that side. Use needle-nose pliers if needed.

[Diagram: Illustration showing knock-out panels on the left and right sides.]

[Diagram: Illustration showing how to cut a plastic panel.]

Use the unit's kickstand to prop it up, providing room to connect the refrigerant piping and drain hose.

Connect the indoor unit's refrigerant piping to the connective piping that joins the indoor and outdoor units.

Based on the wall hole position, determine the necessary angle for your piping. Grip the piping at the bend and slowly bend it towards the hole. Do not dent or damage the piping.

CAUTION: Be extremely careful not to dent or damage the piping while bending them away from the unit. Any dents in the piping affect the unit's performance.

[Diagram: Illustrations showing embedded refrigerant piping connection methods.]

Connect Drain Hose:

The drain hose can be attached to the left or right side. For proper drainage, attach it on the same side as the refrigerant piping exit. Attach a drain hose extension (purchased separately) to the end of the drain hose.

• Wrap the connection point firmly with Teflon tape to ensure a good seal and prevent leaks.
• For the portion of the drain hose that remains indoors, wrap it with foam pipe insulation to prevent condensation.
• Remove the air filter and pour a small amount of water into the drain pan to ensure that water flows smoothly from the unit.

NOTE: Arrange the drain hose according to illustrations in Figure 23.

[Diagram: Illustrations showing correct and incorrect drain hose arrangements. Correct: no kinks or dents. Incorrect: kinks create water traps, or drain hose end in water.]

CAUTION: To prevent unwanted leaks, plug the unused drain hole with the rubber plug provided.

[Diagram: Illustration of plugging an unused drain hole.]

Electrical Work Preparation

WARNING: Before performing any electrical work, read these regulations. Before performing any electrical or wiring work, turn off the main power to the system.

1. All wiring must comply with local and national electrical codes, regulations, and must be installed by a licensed electrician.
2. All electrical connections must be made according to the Electrical Connection Diagram located on the panels of the indoor and outdoor units.
3. If there is a serious safety issue with the power supply, stop work immediately. Explain your reason to the homeowner that the safety issue must be resolved prior to resuming and completing installation.
4. Only connect the unit to an individual branch circuit outlet. Do not connect another appliance to that outlet.
5. Make sure to properly ground the air conditioner.
6. Every wire must be firmly connected. Loose wiring can cause the terminal to overheat, resulting in product malfunction and possible fire.
7. Do not let wires touch or rest against refrigerant tubing, the compressor, or any moving parts within the unit.
8. To avoid getting an electric shock, never touch the electrical components soon after the power supply has been turned off. After turning off the power, always wait 10 minutes or more before you touch the electrical components.

All wiring must be performed strictly in accordance with the wiring diagram located on the back of the Indoor Unit's front panel.

Connect Signal and Power Cables

The signal cable enables communication between the indoor and outdoor units. You must first choose the right cable size before preparing it for connection.

NOTE: Choose the cable type according to the local electrical codes and regulations. Be sure to select the right cable size according to the Minimum Circuit Ampacity indicated on the nameplate of the unit.

DO NOT MIX UP LIVE AND NULL WIRES. This is dangerous, and can cause the air conditioning unit to malfunction.

[Diagram: Connection Diagram for 115V power supply.]

[Diagram: Connection Diagram for 208/230V power supply.]

1. Open and fix the panel position, then open the covers of the two lock blocks, remove the screw, then hold both sides of the lower panel in the place marked "PULL", pull it upwards to release the buckles, then take the lower panel down.
2. Open the wire box cover on the right side of the unit. This reveals the terminal block.
3. Unscrew the cable clamp below the terminal block and place it to the side.
4. Facing the back of the unit, remove the plastic panel on the bottom left-hand side.
5. Feed the signal wire through this slot, from the back of the unit to the front.
6. Facing the front of the unit, connect the wire according to the indoor unit's wiring diagram, connect the u-lug and firmly screw each wire to its corresponding terminal.
7. After checking to make sure every connection is secure, use the cable clamp to fasten the signal cable to the unit. Screw the cable clamp down tightly.
8. Replace the wire cover on the front of the unit, and the plastic panel on the back.

Wrap Piping and Cables

NOTE: Before passing the piping and drain hose through the wall hole, you must bundle them together to save space, protect them, and insulate them.

[Diagram: Illustration showing how to replace the wire cover.]

Follow local codes.

First remove the knock-out panel to create a slot through which the conduit tube can install.

Then make the cable through the conduit tube and connect to the indoor unit.

1. Bundle the drain hose and refrigerant pipes.

[Diagram: Illustration showing bundling the drain hose with refrigerant pipes.]

Using adhesive vinyl tape, attach the drain hose to the underside of the refrigerant pipes.

[Diagram: Illustration showing vinyl tape application.]

Using insulation tape, wrap the refrigerant pipes and drain hose tightly together. Double-check that all items are bundled.

Drain Hose Must Be on the Bottom: Make sure that the drain hose is at the bottom of the bundle. Putting the drain hose at the top of the bundle can cause the drain pan to overflow, which can lead to fire or water damage.

Do Not Wrap Ends of the Piping: When wrapping the bundle, keep the ends of the piping unwrapped. You need to access them to test for leaks at the end of the installation process.

Mount the Indoor Unit

Before performing the refrigerant piping connection, always wear work gloves and goggles. Remember that connectors A and B are not allowed to face people directly.

Keep pressing the cross-shape part of connector B with a wrench or channel locks for about 5-10 seconds until the red protruding point of connector A retracts completely.

Remove connectors A and B, then perform the refrigerant piping connection between the indoor unit and outdoor unit.

INSTALL ALL POWER, INTERCONNECTING WIRING, AND PIPING TO THE INDOOR UNIT

1. Run interconnecting piping and wiring from the outdoor unit to the indoor unit.
2. Run an interconnecting cable through the hole in the wall (outside to inside).
3. Lift the indoor unit into position and route piping and drain through the hole in the wall (inside to outside). Fit the interconnecting wiring into the back side of the indoor unit.
4. Put an upper claw at the back of the indoor unit on the upper hook of the mounting plate and move the indoor unit from side to side to ensure it is securely hooked. See "Step 2: Drill Wall Hole for Connecting Piping on page 15.
5. Open the indoor unit's front cover and remove the field wiring terminal block cover.
6. Pull the interconnecting wire up from the back of the indoor unit and position it close to the terminal block on the indoor unit.
7. Push the lower part of the indoor unit up on the wall, then move the indoor unit from side to side, up and down to ensure it is hooked securely (see Fig. 32).

[Diagram: Illustration showing the indoor unit mounting onto the plate with upper and lower hooks.]

[Diagram: Illustration of Connectors A and B.]

8. Connect the wiring from the outdoor unit per the connection diagram (see Figure 25 - Figure 26).
9. Replace the field wiring cover and close the indoor unit's front cover.
10. Piping:
    • Cut the pipe at 90 degrees (see Fig. 33).
    • Remove the service connection (if provided with the unit).

[Diagram: Illustration showing pipe cutting.]

Remove all the burrs from the cut cross section of the pipe, avoiding any burrs inside the tubes.

Remove the flare nuts attached to the indoor and outdoor units.

Install the correct size flare nut onto the tubing and make the flare connection. Refer to Table 10 for flare nut spacing.

[Diagram: Illustration showing flare nut spacing measurement.]

[Diagram: Illustration showing pipe alignment.]

Apply a small amount of refrigerant oil to the flare connection on the tubing.

Align the center of the pipes and/or service valve.

Connect both the liquid and gas piping to the indoor unit.

Tighten the flare nut using a torque wrench as specified in Table 11.

[Diagram: Image of the Wireless Remote Controller (RG10L5).]

Wireless Remote Controller Installation

To attach the mounting bracket:

1. Use the two screws supplied with the wireless remote control to attach the mounting bracket to the wall in a location selected by the customer and within operating range.
2. Install the batteries in the remote control.
3. Place the remote control into the remote control mounting bracket.

NOTE: For remote control operation, refer to the remote control's owner's manual.

Optional Wired Remote Control Installation

The wired remote controller comes with the following items:

• A set of installation instructions and owner's manuals
• 3 M4X20 Screws to mount on the wall
• 4 wall plugs to mount on the wall
• 2 M4X25 to mount on switch box
• 2 plastic screw bars to fix on switch box
• 1 set of batteries
• 1 set of connecting wires to connect to indoor unit's main board

To connect the wired remote controller to the indoor units, connect to the 4-pin connector located on the display board.

To connect the wired remote controller to the indoor units:

1. Replace the display board with the one shipped with the kit.
2. Install the adapter board (shipped with the kit).
3. Connect the adapter board to the new display board. Follow the instructions on the wired controller installation instructions manual for more details.
4. Connect the female molex plug on the adapter board to the male molex plug from the extension cable shipped with the kit.
5. Connect the extension cable to the wired controller.

For setup instructions, refer to the controller installation manual.

[Diagram: Image of the Wired Controller.]

Troubleshooting

Error Codes

NOTE: The digital tube will display FC in the FORCED COOLING mode. FC is NOT an error code. *Applicable to the units with refrigerant sensors only.

Refrigerant Leak Detection Error Codes

If you receive one of the codes in Table 13, call a technician as soon as possible. The unit goes into TURBO mode until the error code clears. A "beeping" noise from the indoor unit is normal.

For additional diagnostic information, refer to the Service Manual.

Common Issues

Table 14 - Common Issues

NOTE: If problem persists, contact a local dealer or your nearest customer service center. Provide them with a detailed description of the unit malfunction as well as your model number.

Table 15 - Common Issues

NOTE: If your problem persists after performing the checks and diagnostics above, turn off your unit immediately and contact an authorized service center.

Ductless Start-Up Checklist - Single Zone

Installation Data

Site Address: _______________________________________________________________________________________________________ City:________________________________________________________ State:___________ Zip Code:__________________

Installing Contractor:______________________________________________________ Contractor Contact #: ( ) _____-___________

Job Name:_______________________________________________________________ Start-up Date:_____________________________

Distributor:_______________________________________________________________

System Details

Are the outdoor unit and indoor unit compatible? YES:______ NO:______

Wiring Electrical

Wire Size and Type Used? AWG:__________ TYPE:_________

Are there any breaks, splices, wire nuts or butt connectors between the outdoor unit and the indoor unit? YES:______ NO:______

Was the wiring from the outdoor unit port to the correct indoor unit verified? YES:______ NO:______

REMARKS:_______________________________________________________________________________________________________ __________________________________________________________________________________________________________________

Voltage Check

Wiring: Single Zone

Voltage Check

Wiring: Single Zone

Piping

Leak Check:

System held 500 psig (max. 550psi) for a minimum of 30 minutes using dry nitrogen. YES:______ NO:______

Evacuation Method:

• Was the Triple Evacuation Method used as outlined in the installation manual? YES:______ NO:______
• Was the Deep Vacuum Method used as outlined in the installation manual? YES:______ NO:_______
• Did the System Hold 500 microns for 1 hour? YES:______ NO:_______
• Does the line set match the diameter of the evaporator connections? YES:______ NO:_______
• For Conventional Fan Coils, does the line set match the outdoor unit size? YES:______ NO:_______

Single Zone Piping:

Has the liquid pipe length been measured and the additional charge calculated? Size:___________ Length:_________ Charge:____________

NOTES:

NOTE: Final Charge Amount must be recorded!

Performance Check

For 1:1 Single Zone Systems: Adjust the set-point to create an operational call for the desired testing operation. Allow the system to run for a minimum of 10 min. and record the following details:

(Operational data recorded on applicable heads with the wireless remote controller's Point Check function)

NOTE: T1 - Ambient Space Temperature Sensor, T2 - IDU Coil Temperature Sensor, T3 - Outdoor Coil Temperature Sensor, T4 - Outdoor Ambient Temperature, Tb - Suction Line Temperature @PMV, Tp - Discharge Temperature Sensor, Th - IPM Board Temperature, LA/Lr - PMV Temperature

Error Codes

Were there any error codes present at start-up? YES:______ NO:______

Indoor Unit Error Code: ____________________ Outdoor Unit Error Code: ____________________

Wall Controller: _________________________ 24V Interface: _________________________

Notes: _______________________________________________________________________________________________________

Comments: _______________________________________________________________________________________________________