Goodman air installation manual

Insulate liquid and suction lines separately. If the lines must pass under or through a concrete slab, ensure lines are adequately protected and sealed.

To avoid overheating the service valve, TXV valve, or filter drier while brazing, wrap the component with a wet rag, or use a thermal heat trap compound. Note: Remove Schrader valves from service valves before brazing tubes to the valves. Do not use flux. Torch heat required to braze tubes of various sizes is proportional to the size of the tube.

Tubes of smaller size require less heat to bring the tube to brazing temperature before adding brazing alloy. Applying too much heat to any tube can melt the tube. Service personnel must use the appropriate heat level for the size of the tube being brazed.

NOTE: The use of a heat shield when brazing is recommended to avoid burning the serial plate or the finish on the unit. The ends of the refrigerant lines must be cut square, deburred, cleaned, and be round and free from nicks or dents.

Any other condition increases the chance of a refrigerant leak. The POE oils used in R- A applications will clean any copper-oxide present from the inside of the refrigerant lines and spread it throughout the system.

This may cause a blockage or failure of the metering device. After brazing, quench the joints with water or a wet cloth to prevent overheating of the service valve. Ensure the filter drier paint finish is intact after brazing. If the paint of the steel filter drier has been burned or chipped, repaint or treat with a rust preventative. This is especially important on suction line filter driers which are continually wet when the unit is operating.

NOTE: Be careful not to kink or dent refrigerant lines. Kinked or dented lines will cause poor performance or compressor damage. Do NOT make final refrigerant line connection until plugs are removed from refrigerant tubing.

NOTE: Before brazing, verify indoor piston size by checking the piston kit chart packaged with indoor unit. Pressure test the system using dry nitrogen and soapy water to locate leaks. If you wish to use a leak detector, charge the system to 10 psi using the appropriate refrigerant then use nitrogen to finish charging the system to working pressure then apply the detector to suspect areas. If leaks are found, repair them.

After repair, repeat the pressure test. If no leaks exist, proceed to system evacuation. Condensing unit liquid and suction valves are closed to contain the charge within the unit. The unit is shipped with the valve stems closed and caps installed. Do not open valves until the system is evacuated. NOTE: Scroll compressors should never be used to evacuate or pump down a heat pump or air conditioning system.

Connect the vacuum pump with micron capability to the service valves. Evacuate the system to microns or less using suction and liquid service valves. Using both valves is necessary as some compressors create a mechanical seal separating the sides of the system. Close pump valve and hold vacuum for 10 minutes. Typically pressure will rise during this period. Return to step 2: If the same result is encountered check for leaks as previously indicated and repair as necessary then repeat evacuation.

Check for leaks as previously indicated and repair as necessary then repeat evacuation. The condensing unit rating plate lists pertinent electrical data necessary for proper electrical service and overcurrent protection. Local codes often require a disconnect switch located near the unit; do not install the switch on the unit. Likewise, consult the instructions packaged with the thermostat for mounting and location information.

These devices have sufficient time delay to permit the motorcompressor to start and accelerate its load. Route power supply and ground wires through the high voltage port and terminate in accordance with the wiring diagram provided inside the control panel cover. Low voltage wiring for the condensing units depends on the thermostat used.

The unit also has legacy 24 VAC inputs to support non-communicating systems. Route control wires through the low voltage port and terminate in accordance with the wiring diagram provided inside the control panel cover. NOTE: If the condensing unit is wired in the communicating mode together with the compatible communicating indoor unit and thermostat, then the communicating thermostat is able to search and identify the condensing unit when power is applied to the system. Refer to the Installation Manual of the communicating thermostat for more information.

Y2 with. When opening valves without a retainer remove service valve cap and insert a hex wrench into the valve stem and back out the stem by turning the hex wrench counterclockwise. Open the valve until it contacts the rolled lip of the valve body. NOTE: These are not back-seating valves. It is not necessary to force the stem tightly against the rolled lip. Sending a low voltage signal without high voltage power present at the outdoor unit can cause malfunction of the control module on the ECM motor.

Adequate refrigerant charge for a matching evaporator and 15 feet line set is supplied with the condensing unit. If line set exceeds 15 feet in length, refrigerant should be added at. Open the suction service valve first!

If the liquid service valve is opened first, oil from the compressor may be drawn into the indoor coil TXV, restricting refrigerant flow and affecting operation of the system. After the refrigerant charge has bled into the system, open the liquid service valve. The service valve cap is the secondary seal for the valves and must be properly tightened to prevent leaks.

Make sure cap is clean and apply refrigerant oil to threads and sealing surface on inside of cap. Do not introduce liquid refrigerant from the cylinder into the crankcase of the compressor as this may damage the compressor. Break vacuum by fully opening liquid and suction base valves. Set thermostat to call for cooling. Check indoor and outdoor fan operation and allow system to stabilize for 10 minutes for fixed orifices and 20 minutes for expansion valves.

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These coils are available in both cased and uncased models with the option of a field installed txv expansion device. Models listed on page 3 technical information manual rt rev.

No matter the time of year, an HVAC system breakdown may occur unexpectedly. For Goodman air conditioning systems , manuals detailing all Goodman air conditioner parts are available to assist when making repairs.

Whenever an air conditioning or heating system requires repair, it is important that only genuine OEM original equipment manufacturer parts be used — follow this rule with Goodman HVAC parts, too. Using OEM replacement parts is important for many reasons:. Replacement parts manuals will tell you exactly what part numbers correspond with each component, making your repair job easier.