Service Manual

ManualsBrandsAirQuest ManualsMobile Home Air Conditioning2.5 Ton 14 SEER Air Conditioner with ADP Mobile Home Coil

TROUBLESHOOTING (SINGLE- STAGE) 46.............

TWO- STAGE *CA7, *CA9, *CH6, *CH9 52..............

Application Guidelines 52..........................

Model Plug 52....................................

Airflow Selections for *CA7, *CA9, *CH6, *CH9

Using Non- Communicating Thermostats 52..........

GENERAL INFORMATION 52.........................

Defrost 52........................................

Quiet Shift- 2 (Communicating models)

(FAST # 1185237, 1186140) 53.....................

Liquid- Line Solenoid Accessory 53..................

CHECK CHARGE 54.................................

Heating Check Chart Procedure 54..................

SYSTEM FUNCTIONS AND SEQUENCE OF OPERATION

(*CA7, *CA9, *CH6, *CH9) 54.........................

Cooling and Heating Operation 54...................

Communication and Status Function Lights

For Communicating Control only, Green

communications (COMM) Light 54...................

Compressor Operation 54..........................

Fan Motor 55.....................................

Time Delays 56...................................

Pressure Switches 56..............................

Muffler, Accumulator, Reversing Valve (RVS) 56.......

Thermistors 56....................................

Control Box 57....................................

TROUBLESHOOTING 58.............................

Troubleshooting circuit board FAST # 1185237,

1186140 58......................................

Systems Communication Failure 58..................

Pressure Switch Protection 58......................

Control Fault 58...................................

Brown- Out Protection 58...........................

230v Brown- Out Protection Defeated 58.............

230V Line (Power Disconnect) Detection 58..........

Compressor Voltage Sensing 58....................

Contactor Shorted Detection 58.....................

Compressor Thermal Cutout - *CA7, *CA9, *CH6,

*CH9 58.........................................

Low or High Contactor Open / No 230V at

Compressor Contactor - *CA7, *CA9, *CH6, *CH9 58..

Troubleshooting units for proper switching between

low & high stages - *CA7, *CA9, *CH6, *CH9 59.......

Unloader Test Procedure - *CA7, *CA9, *CH6, *CH9 59

Temperature Thermistors 59........................

Thermistor Sensor Comparison 59...................

Failed Thermistor Default Operation 59...............

CARE AND MAINTENANCE 61........................

Desert and Seacoast Locations 61..................

Cleaning Coil 61..................................

Cleaning Outdoor Fan Motor and Blade 61............

Electrical Controls and Wiring 61....................

Refrigerant Circuit 61..............................

Final Check- Out 62...............................

INDEX OF TABLES 66................................