Air Conditioner Service Manual
2
Content
1. TECHNICAL INFORMATION ..........................................................................................................................................3
1.1 SUMMARY ...................................................................................................................................................................... 3
2. UNIT DIMENSION ........................................................................................................................................................4
2.1 ODU DIMENSION ............................................................................................................................................................ 4
2.2 IDU DIMENSION ..............................................................................................................................................................5
3. REFRIGERANT SYSTEM DIAGRAM ............................................................................................................................... 6
4. ELECTRICAL PART ........................................................................................................................................................ 7
4.1 WIRING DIAGRAM ........................................................................................................................................................... 7
4.2 FUNCTION AND CONTROL ................................................................................................................................................11
5. INSTALLATION MANUAL ............................................................................................................................................16
5.1 INSTALLATION FOR SERVICE ..............................................................................................................................................16
5.2 INSTALLATION PRECAUTIONS ............................................................................................................................................. 21
5.3 INSTALLATION PREPARATION ............................................................................................................................................. 25
5.4 UNIT INSTALLATION ........................................................................................................................................................ 32
5.5 ELECTRICAL INSTALLATION ................................................................................................................................................42
5.6 TEST RUNNING .............................................................................................................................................................. 43
6. TROUBLESHOOTING ..................................................................................................................................................45
6.1 ERROR CODE .................................................................................................................................................................45
6.2 TROUBLESHOOTING ........................................................................................................................................................ 49
7. UNIT DISASSEMBLY ................................................................................................................................................... 72
7.1 ODU DISASSEMBLY ........................................................................................................................................................ 72
7.2 IDU DISASSEMBLY ..........................................................................................................................................................77
8. THERMISTOR TEMPERATURE CHARACTERISTICS .......................................................................................................81
