– 4 –
Service Main Board .............................................................................................................................................................. 30
User Interface ...................................................................................................................................................................................32
Components ...................................................................................................................................................................................... 33
Louvers ...................................................................................................................................................................................... 33
Components ...................................................................................................................................................................................... 35
Thermistors Indoor ............................................................................................................................................................... 35
Thermistors Outdoor ........................................................................................................................................................... 35
Indoor Fan Motor .................................................................................................................................................................. 36
Indoor Blower Wheel ........................................................................................................................................................... 36
Indoor Fan Bearing .............................................................................................................................................................. 37
Outdoor Fan Motor Shroud .............................................................................................................................................. 38
Outdoor Fan Motor............................................................................................................................................................... 39
Heater ........................................................................................................................................................................................ 40
Fuse located in wire cover ..................................................................................................................................................40
Power Cords ............................................................................................................................................................................ 41
ICR System ............................................................................................................................................................................... 41
Damper Door .......................................................................................................................................................................... 42
Make-Up Air Module (MUAM) ........................................................................................................................................... 42
Sealed System ........................................................................................................................................................................ 44
Sealed System Heat Pump ............................................................................................................................................... 45
Compressor ............................................................................................................................................................................. 45
Sealed System Heat Pump Components ................................................................................................................... 45
Service Replacement Vavle Assembly ........................................................................................................................ 46
Sealed System Common ................................................................................................................................................... 46
Electrical .................................................................................................................................................................................... 47
Low Voltage Transformer ................................................................................................................................................. 48
Condensate Removal .......................................................................................................................................................... 49
Fault Codes......................................................................................................................................................................................... 50
Service Mode .....................................................................................................................................................................................52
Sealed System – Refrigerant Flow Cooling ..........................................................................................................................53
Sealed System – Refrigerant Flow Heating .........................................................................................................................54
Recovery Process ............................................................................................................................................................................ 55
(Continued next page)
To Next Page
