DC Inverter Air
3‐‐‐ Electronic expansion valve interface .......................................................................................88
4－－Exhaust temperature sensor interface。 ............................................................................88
5－－Temperature sensor interface of outdoor temperature and condenser tube .................88
6－－Outdoor DC fan output .........................................................................................................88
7－－Four way valve output interface ...........................................................................................88
8－－Power input ............................................................................................................................88
4) Description of Address DIP .......................................................................................................89
3.3 TCA‐48/60HRA/DV3 Electric Control Box (ECB) ....................................................................................... 89
3.4 TCA‐36HRA/DV Electric Control Box (ECB) ............................................................................................. 91
3.5 Troubleshooting and Repair ...................................................................................................................... 92
3.6 Electrical Control and Troubleshooting of Indoor Unit .......................................................................... 101
1). Description of Motherboard of Indoor Unit (cassette) .................................................................. 101
2) Description of Motherboard of Indoor Unit (Duct/ Ceiling & floor) ............................................ 102
15—FUSE ....................................................................................................................................... 104
3) Troubleshooting Methods .............................................................................................................. 105
3.7 System Maintenance ................................................................................................................................ 105
1). Maintenance of Indoor Unit ............................................................................................................. 105
2). Maintenance of Outdoor Unit .......................................................................................................... 106
3). System Maintenance prior to Seasonal Shutdown......................................................................... 106
4). System Maintenance prior to Seasonal Startup ............................................................................. 107
Annexes................................................................................................................................................................... .108
Annex 1 Analysis of Common Faults of Compressors .................................................................................. 108
Annex 2 Faults Not Resulted from Air Conditioner ...................................................................................... 111
Annex 3 Parameter Table of Temperature Sensor ....................................................................................... 112
Annex 4 Parameter Table of Temperature Sensor ....................................................................................... 113
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