Infinity Living Heat Pump Condenser Outdoor Unit Installation Manual

This manual provides essential information for the proper installation and operation of your Infinity Living Heat Pump Condenser with DIYCool Technology. Please read this manual carefully before installation or operation and save it for future reference. Common sense and attention to safety are required.

Safety Precautions

Explanation of Symbols

WARNING: Indicates a hazard with a medium level of risk which, if not avoided, may result in death or serious injury.

CAUTION: Indicates a hazard with a low degree of risk which, if not avoided, may result in minor or moderate injury.

NOTICE: Indicates important information (e.g., damage to property), but not danger.

Read these operating instructions carefully and attentively before using/commissioning the unit and keep them in the immediate vicinity of the installation site or unit for later use!

General Safety Warnings

• 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 supervised or instructed by a person responsible for their safety.
• Children should be supervised to ensure they do not play with the appliance.
• If an abnormal situation arises (like a burning smell), immediately turn off the unit and disconnect the power. Call your dealer for instructions to avoid electric shock, fire, or injury.
• Do not insert fingers, rods, or other objects into the air inlet or outlet, as the fan may be rotating at high speeds.
• Do not use flammable sprays (hair spray, lacquer, paint) near the unit, as this may cause fire or combustion.
• Do not store gasoline or flammable substances near the air conditioner. Emitted gas may collect around the unit and cause an explosion.
• Do not install the air conditioner in a wet room such as a bathroom or laundry room, as excessive exposure to water can cause electrical components to short circuit.
• Do not expose your body directly to cool air for a prolonged period.
• If the air conditioner is used with burners or other heating devices, thoroughly ventilate the room to avoid oxygen deficiency and carbon monoxide buildup.
• For certain environments like kitchens or server rooms, specially designed air-conditioning units are highly recommended.
• Improper installation, adjustment, alteration, service, or maintenance can cause property damage, personal injury, or loss of life. Installation and service must be performed by a licensed professional HVAC installer or equivalent, service agency, or the gas supplier.

Cleaning and Maintenance Warnings

• Turn off the device and disconnect the power before cleaning. Failure to do so can cause electrical shock.
• Do not clean the air conditioner with excessive amounts of water.
• Do not clean the air conditioner with combustible cleaning agents, as they can cause fire or deformation.

Cautions

• Turn off the air conditioner and disconnect the power if not using it for a long time.
• Ensure water condensation can drain unhindered from the unit.
• Do not operate the air conditioner with wet hands; this may cause electric shock.
• Do not use the device for any purpose other than its intended use.
• Do not climb onto or place objects on top of the outdoor unit.
• Contact with sharp sheet metal edges can result in personal injury. Take care while handling and wear gloves and protective clothing.

Electrical Warnings

• Do not share the electrical circuit with other appliances; this equipment requires a dedicated electrical circuit.
• The product must be properly grounded at the time of installation to prevent electrical shock.
• For all electrical work, follow all local and national wiring standards, regulations, and this Installation Manual. Connect cables tightly and clamp them securely to prevent external forces from damaging the terminal. Improper electrical connections can overheat and cause fire, or 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 the control board cover can close properly. If the cover is not closed properly, it can lead to corrosion and cause connection points on the terminal to heat up, catch fire, or cause electrical shock.
• To avoid electric shock, never touch electrical components soon after power has been turned off. Wait 10 minutes or more.
• Do not cross electrical wiring with signal wiring, as this may cause distortion, interference, or damage to circuit boards.

Product Installation Warnings

• 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 these instructions. Improper installation can cause water leakage, electrical shock, or fire. (In North America, installation must be performed in accordance with NEC and CEC requirements by authorized personnel only.)
• Contact an authorized service provider for repair or maintenance.
• Only use included accessories, parts, and specified parts for installation. Using non-standard parts can cause water leakage, electrical shock, fire, and equipment failure.
• Install the unit in a firm location that can support its weight. Improper support may cause the unit to fall, resulting in serious injury and damage.
• Install drainage piping according to instructions. Improper drainage may cause water damage.
• Do not install the unit where it may be exposed to combustible gas leaks, as this 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 reinstallation.
• The unit must be properly supported and secured to prevent tipping.
• Excessive Weight Hazard: Use two or more people when moving and installing the unit. Failure to do so can result in injury.

Fuse Specifications

The air conditioner's circuit board (PCB) is designed with a fuse for overcurrent protection. This fuse must be replaced with an identical component. Specifications are printed on the circuit board (e.g., T5A/250VAC, T10A/250VAC).

Note on Fluorinated Gases (Not Applicable to R290 Units)

This unit contains fluorinated greenhouse gases. Refer to the unit label or Owner's Manual - Product Fiche for gas type and amount (EU products only).

• Installation, service, maintenance, and repair must be performed by a certified technician.
• Product uninstallation and recycling must be performed by a certified technician.
• Proper record-keeping of leak checks is strongly recommended.

Accessories

The air conditioning system comes with the following accessories. Use all installation parts and accessories. Improper installation may result in water leakage, electrical shock, fire, or equipment failure.

Accessories (Packed with the indoor unit)

• Drain fitting (some models): 1 pc
• Gasket (some models): 1 pc
• Flare-to-braze adapter: 2 pcs

Refrigerant Piping Connection

Safety Precautions

• All field piping must be completed by a licensed technician and comply with local and national regulations.
• In small rooms, measures must prevent refrigerant concentration from exceeding safety limits in case of leakage, to avoid hazards due to lack of oxygen.
• Ensure air, dust, moisture, or foreign substances do not enter the refrigerant circuit during installation. Contamination can cause poor performance, high pressure, explosion, or injury.
• Ventilate the area immediately if refrigerant leaks during installation. Leaked refrigerant gas is toxic and flammable. Ensure no refrigerant leakage after installation.

Notes on Pipe Length and Elevation

Ensure pipe length, number of bends, and drop height between indoor and outdoor units meet requirements. The table below shows maximum lengths and drop heights based on model capacity.

Oil Traps

If oil flows back into the outdoor unit's compressor, it might cause liquid compression or oil return deterioration. Oil traps in the rising gas piping can prevent this. Install an oil trap every 6m (20ft) of vertical suction line riser for units up to 36000 Btu/h, and every 10m (32.8ft) for units 36000 Btu/h and above.

Connecting Pipe Assembly

The correct connecting pipes are included with your equipment. Ensure proper connection sizes for the air handler unit and outdoor unit, using adapters as needed.

• Air Handler Unit Connection:
• 18K/24K: Liquid 3/8in, Gas 3/4in
• 24K/30K/36K/48K: Liquid 3/8in, Gas 3/4in
• 60K: Liquid 3/8in, Gas 7/8in
• Adapter Required at Air Handler Unit: (in.flare to braze)
• Outdoor Unit Connection:
• 18K/24K: Liquid 3/8in, Gas 5/8in
• 24K(Hyper Heat)/30K/36K/48K: Liquid 3/8in, Gas 3/4in
• 60K: Liquid 3/8in, Gas 7/8in
• Adapter Required at Outdoor Unit: (in. flare to flare or braze)

Connection Instructions--Refrigerant Piping

• The branching pipe must be installed horizontally; an angle of more than 10° may cause malfunction.
• DO NOT install the connecting pipe until both indoor and outdoor units have been installed.
• Insulate both the gas and liquid piping to prevent condensation.

Step 1: Cut pipes

Measure the distance between the indoor and outdoor units. Using a pipe cutter, cut the pipe slightly longer than the measured distance, ensuring a perfect 90° angle cut. Do not deform the pipe while cutting.

Step 2: Remove burrs

Burrs can affect the airtight seal. Hold the pipe at a downward angle and use a reamer or deburring tool to remove all burrs from the cut section.

Step 3: Flare pipe ends

Seal pipe ends with PVC tape to prevent foreign materials. Sheath the pipe with insulating material. Place flare nuts on both ends, ensuring correct orientation. Remove tape when ready to flare. Clamp the flare nut on the pipe end. Place the flaring tool onto the form and turn the handle clockwise until the pipe is fully flared. Inspect the flared end for cracks and evenness. Proper flaring is essential for an airtight seal.

Step 4: Connect pipes

Connect copper pipes to the indoor unit first, then to the outdoor unit. Connect the low-pressure pipe, then the high-pressure pipe. Apply a thin coat of refrigeration oil to the flared ends. Align the pipes and tighten the flare nut snugly by hand. Use a wrench on the unit tubing and a torque wrench to tighten the flare nut according to specified torque values (e.g., 32-39 N.m for 3/8in flare). Use both a spanner and a torque wrench. Ensure insulation is wrapped around the piping. Over-tightening can damage the flare, while under-tightening can lead to leaks. Carefully bend tubing with a minimum radius of 10cm (3.9in), avoiding kinks. Do not bend more than 90° or more than 3 times. After connecting pipes, wrap power cable, signal cable, and piping together with binding tape, ensuring the signal cable is not intertwined with other wires.

Outdoor Unit Installation

NOTICE: Install the unit following local codes and regulations.

Select the installation location of outdoor units

Choose an appropriate location that meets the following standards:

• Meets all spatial requirements: 60cm (24in) above, 30cm (12in) from back wall, 30cm (12in) on left, 60cm (24in) on right, 200cm (79in) in front.
• Firm and solid: the location can support the unit and will not vibrate.
• Quiet: Noise from the unit will not disturb other people.
• Good air circulation and ventilation.
• The outdoor unit must be installed on risers of at least 15cm (6in) in height or per local code to get the unit above local mean snow fall.

DO NOT install unit in the following locations:

• Near an obstacle that will block air inlets and outlets.
• In a location exposed to large amounts of dust.
• Near animals or plants that will be harmed by hot air discharge.
• Near any source of combustible gas.
• Where snowfall is anticipated, take appropriate measures to prevent ice buildup and coil damage.
• Near a public street, crowded areas, or where noise will disturb others.

SPECIAL CONSIDERATIONS FOR EXTREME WEATHER

• If the unit is exposed to heavy wind: Install unit so that the air outlet fan is at a 90° angle to the direction of the wind. If needed, build a barrier (wind baffle) in front of the unit.
• If the unit is frequently exposed to heavy rain or snow: Build a shelter above the unit to protect it from rain or snow, being careful not to obstruct airflow around the unit.

Install drain fitting (Heat pump unit only)

Find the base pan hole of the outdoor unit. Fit the rubber seal on the drain fitting. Insert the drain fitting into the hole until it clicks. Connect a drain hose extension (not included) to redirect water during heating mode. In cold climates, ensure the drain hose is as vertical as possible for swift drainage to prevent freezing.

Anchor outdoor unit

The outdoor unit can be anchored to the ground or a wall-mounted bracket with bolt (M10). Prepare the installation base according to the dimensions provided.

Outdoor Unit Dimensions

Mounting Dimensions (Unit: mm/inch)

Series Installation

The relations between H, A, and L are as follows:

• L ≥ H: 25 cm (9-13/16in) or more
• 1/2H < L ≤ H: 30 cm (11-13/16in) or more
• L > H: Cannot be installed

Installation on Ground or Concrete Platform

Mark positions for four expansion bolts based on the dimensions chart. Pre-drill holes. Place nuts on bolts, hammer bolts into holes, remove nuts, place unit on bolts, add washers, and tighten nuts with a wrench. Eye protection is recommended when drilling into concrete.

Installation on Wall-Mounted Bracket

Mark bracket hole positions. Pre-drill holes for expansion bolts. Place washers and nuts on bolts, thread bolts through brackets, position brackets, and hammer bolts into the wall. Check that brackets are level. Lift and place the unit onto the brackets, then bolt it firmly. Install with rubber isolator pads if allowed to reduce vibrations and noise. Ensure the wall is solid brick, concrete, or similarly strong material capable of supporting at least four times the unit's weight.

Wiring

Wiring Precautions

• All wiring must comply with local and national electrical codes and regulations and be installed by a licensed electrician.
• All electrical connections must follow the Electrical Connection Diagram on the unit panels.
• If there is a serious safety issue with the power supply, stop work immediately and refuse installation until resolved.
• Power voltage should be within 90-110% of rated voltage. Insufficient supply can cause malfunction, shock, or fire.
• Installation of an external surge suppressor at the outdoor disconnect is recommended.
• Power must be connected via a switch or circuit breaker that disconnects all poles with at least 1/8in (3mm) contact separation, incorporated in the fixed wiring.
• Connect the unit to an individual branch circuit only; do not connect other appliances.
• Properly ground the air conditioner.
• Ensure every wire is firmly connected. Loose wiring can cause terminal overheating, malfunction, or fire.
• Do not let wires touch or rest against refrigerant tubing, the compressor, or moving parts.
• Wait 10 minutes or more after turning off power before touching electrical components to avoid electric shock.
• Do not cross electrical wiring with signal wiring to prevent distortion, interference, or damage to circuit boards.
• Connect outdoor wires before indoor wires.
• WARNING: Before any electrical work, turn off the main power to the system.

Outdoor Unit Wiring

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

Step 1: Prepare the cable for connection

Choose the right cable size. Strip the jacket from both ends of the signal cable to reveal approximately 15cm (5.9") of wire. Strip insulation from wire ends. Use U-lugs or ring terminals for stranded wire. Clamp down the cable with the cable clamp. Insulate unused wires with electrical tape and keep them away from electrical or metal parts. Reinstall the electric control box cover.

NOTICE: Strictly follow the wiring diagram inside the electrical box cover. Choose cable type according to local regulations. Select cable size according to Minimum Circuit Ampacity on the unit's nameplate.

Step 2: Remove the electric cover

Remove the wire cover by loosening screws. Remove caps on the conduit panel. Mount conduit tubes (not included). Properly connect power supply and low voltage lines to the terminal block. Ground the unit per local codes. Size each wire allowing several inches longer than required.

Step 3: Connect the u-lugs to the terminals

Match wire colors/labels with terminal block labels. Firmly screw the U-lug of each wire to its corresponding terminal. Isolate power supply leads and communication leads by strain relief, keeping power supply leads away from communication leads. Disconnection must be incorporated in fixed wiring per wiring rules.

Specific Wiring Methods

WARNING: Please refer to the wiring nameplate for the wiring method. Do not connect 24V AC to S1-S2, as this will damage the system.

• Connection method A: Preferred method for communicating control with Infinity Living indoor and outdoor units. Refer to internal/external machine communication and wired controller wiring.
• Connection method B: For using a 24V thermostat.
  • Cooling Only Outdoor Unit Only Mode: S1 S2 R C Y1 Y2 L
  • Other Outdoor Unit Only Mode: S1 S2 B W D R C Y1 Y2 L

  24V must never be connected to S1-S2. Incorrect wiring will cause irreversible damage. For 24V thermostat use, set S1-2 dip switch to "ON" for 24V communication scheme.

• Connection method C: For use with a third-party indoor unit or cased coil and gas furnace. This method uses 'B' functionality; ensure thermostat configuration is set for 'B' functionality.

NOTICE: Shielded communication or thermostat wire is recommended where separation from high voltage conductors cannot be maintained or in areas with high electrical noise. The shield and drain conductor must be grounded at the outdoor unit and stripped back and taped at the indoor unit. Grounding at both ends can increase noise transmission.

Outdoor unit DIP Switch setting

Press the SW1 button for 10 seconds for force defrosting.

• S1-1: Function to be defined.
• S1-2: Communication dial code (24V communication scheme / 485 communication scheme).
• S1-3: Strong cold and strong heat function (cooling/heating target pressure compensation value is valid/invalid).
• S1-4: Enhanced defrosting function (Enhanced defrosting / Default setting).

Specific Wiring Methods (Thermostat Wiring)

NOTICE: The following diagrams are suitable for AHU and ODU with a 24V thermostat.

Non-communication scheme wiring reference

• Wiring for 4H and 2C thermostat: Thermostat terminals (W2, W1/E, O/B, Y2, Y1, G, L, C, R, DH) connect to Indoor Unit terminals (DH, R, C, L, G, Y1, B, W, W1, W2, E) and Outdoor Unit terminals (R, C, Y1, Y2, B, W, D, L).
• Wiring for 3H and 2C thermostat: Thermostat terminals (W2, W1/E, O/B, Y2, Y1, G, L, C, R, DH) connect to Indoor Unit terminals (DH, R, C, L, G, Y1, B, W, W1, W2, E) and Outdoor Unit terminals (R, C, Y1, Y2, B, W, D, L).
• Wiring for 3H and 1C thermostat: Thermostat terminals (W2, W1/E, O/B, Y, G, L, C, R, DH) connect to Indoor Unit terminals (DH, R, C, L, G, Y1, B, W, W1, W2, E) and Outdoor Unit terminals (R, C, Y1, Y2, B, W, D, L).
• Wiring for 2H and 2C thermostat: Thermostat terminals (O/B, Y2, Y1, G, C, R, DH) connect to Indoor Unit terminals (DH, R, C, L, G, Y1, B, W, W1, W2, E) and Outdoor Unit terminals (R, C, Y1, Y2, B, W, D, L).
• Wiring for 2H and 1C thermostat: Thermostat terminals (W/E, O/B, Y, G, C, R) connect to Indoor Unit terminals (DH, R, C, L, G, Y1, B, W, W1, W2, E) and Outdoor Unit terminals (R, C, Y1, Y2, B, W, D, L).
• Wiring for 1H and 1C thermostat: Thermostat terminals (O/B, Y, G, C, R) connect to Indoor Unit terminals (DH, R, C, L, G, Y1, B, W, W1, W2, E) and Outdoor Unit terminals (R, C, Y1, Y2, B, W, D, L).

S4-1: Default ON for DH function OFF. Turn switch OFF to activate DH function.

S4-2: Default ON, W1 and W2 shorted for single stage Aux heat operation. Turn OFF to separate stages.

Indoor unit connector

LED display

The control displays unit status and active fault codes on the LED display. If functioning normally, it shows the current temperature setpoint. When a fault code is active, the display flashes the code. Refer to the Service Manual's troubleshooting section for detailed fault code information.

NOTICE: This is the least preferred method of control wiring and should only be used for emergency situations. Full comfort capacity may not be achieved.

Power Specifications

Cooling and Heating power specifications

Cooling Only power specifications

NOTICE: Line Diameter Sizing per NFPA 70 (2020), Table 310.15(B)(16) Based on type NM-B Romex wire. Other sizing options are possible. Consult NFPA 70 or Licensed Electrician for alternate sizing. Please follow the prompts on the nameplate of the machine body for actual parameters.

Air Evacuation

NOTICE: When opening valve stems, turn the hexagonal wrench until it hits against the stopper. Do not try to force the valve to open further. Open valves slowly until you hear refrigerant, allow pressure to equalize before opening fully. Open large vapor line valve first.

Preparations and precautions

Air and foreign matter in the refrigerant circuit can cause abnormal pressure rises, damaging the air conditioner, reducing efficiency, and causing injury. Use a vacuum pump and manifold gauge to evacuate the refrigerant circuit, removing any non-condensable gas and moisture. Evacuation should be performed upon initial installation and when the unit is relocated.

Evacuation Instructions

1. Connect the charge hose of the manifold gauge to the service port on the outdoor unit's low pressure valve.
2. Connect another charge hose from the manifold gauge to the vacuum pump.
3. Open the Low Pressure side of the manifold gauge. Keep the High Pressure side closed.
4. Tighten refrigerant valve caps hand tight plus flat to ensure no vacuum leaks.
5. Turn on the vacuum pump to evacuate the system.
6. Run the vacuum for at least 15 minutes, or until the Compound Meter reads -76cmHG (-105Pa) or 500 microns.
7. Close the Low Pressure side of the manifold gauge and turn off the vacuum pump.
8. Wait for 5 minutes, then check for any change in system pressure.
9. If pressure changes, refer to the Gas Leak Check section. If no pressure change, unscrew the cap from the packed valve (high pressure valve).
10. Insert a hexagonal wrench into the packed valve (high pressure valve) and open the valve by turning the wrench 1/4 counterclockwise. Listen for gas to exit, then close the valve after 5 seconds.
11. Watch the Pressure Gauge for one minute to ensure no pressure change. The gauge should read slightly higher than atmospheric pressure.
12. Remove the charge hose from the service port.
13. Using the hexagonal wrench, fully open both the high pressure and low pressure valves.
14. Tighten all valve caps hand tight plus one flat to ensure no leaks. Tighten further with a torque wrench if needed.

Note on Adding Refrigerant

CAUTION: DO NOT mix refrigerant types.

Some systems require additional charging depending on pipe lengths. The standard pipe length varies by regulation (e.g., 7.5m (25') in North America, 5m (16') in other areas). Refrigerant should be charged from the service port on the outdoor unit's low pressure valve. Additional refrigerant can be calculated using the following formula: [Formula not provided in text].

Test Run

CAUTION: Failure to perform the test run may result in unit damage, property damage, or personal injury.

Before test run

A test run must be performed after the entire system is installed. Confirm the following:

• Indoor and outdoor units are properly installed.
• Piping and wiring are properly connected.
• No obstacles near unit inlet/outlet.
• Refrigeration system does not leak.
• Drainage system is unimpeded and draining to a safe location.
• Heating insulation is properly installed.
• Grounding wires are properly connected.
• Pipe length and additional refrigerant capacity have been recorded.
• Power voltage is correct.

Test run Instructions

1. Open both the liquid and gas service valves.
2. Turn on the main power switch and allow the unit to warm up.
3. Set the air conditioner to COOL mode.
4. For the Indoor Unit:
   • Double-check room temperature registration.
   • Check that the drainage system is unimpeded and draining smoothly.
   • Ensure no vibration or abnormal noise during operation.
5. For the Outdoor Unit:
   • Check for refrigeration system leaks.
   • Ensure no vibration or abnormal noise during operation.
   • Ensure wind, noise, and water generated by the unit do not disturb neighbors or pose a safety hazard.
6. Drainage Test:
   • Ensure the drainpipe flows smoothly. (New buildings should perform this test before ceiling finishing.)
   • Turn on the main power switch and run the air conditioner in COOL mode.
   • Check that water is discharged (may take up to one minute).
   • Ensure no leaks in any piping.
   • Stop the air conditioner, turn off the main power switch, and reinstall the test cover.

NOTICE: If the unit malfunctions or does not operate as expected, refer to the Troubleshooting section of the Service Manual before calling customer service.

The design and specifications are subject to change without prior notice for product improvement. Consult with the sales agency or manufacturer for details. Any updates to the manual will be uploaded to the service website; please check for the latest version.