Air Conditioner Service Manual
2
CONTENTS
PART ⅠTECHNICAL INFORMATION .....................................................................................................................................3
1. IMPORTANT NOTICE .....................................................................................................................................................................3
2. REFRIGERATION CYCLE DIAGRAM.....................................................................................................................................................4
3. ELECTRIC DIAGRAM .....................................................................................................................................................................5
3.1 Wiring diagram ................................................................................................................................................................5
3.2 PCB LAOUT .......................................................................................................................................................................7
4. ELECTRONIC CONTROLLER INTRODUCTION......................................................................................................................................10
4.1 Electronic controller .......................................................................................................................................................10
PART ⅡINSTALLATION AND MAINTENANCE...................................................................................................................... 15
1. NOTES FOR INSTALLATION AND MAINTENANCE.................................................................................................................................15
2INSTALLATION ............................................................................................................................................................................ 17
2.1 Installation Dimension Diagram..................................................................................................................................... 17
2.2 Accessory........................................................................................................................................................................ 18
2.3 Position........................................................................................................................................................................... 19
2.4 Electricity and wiring...................................................................................................................................................... 19
2.5 IDU Installation .............................................................................................................................................................. 19
2.6 ODU Installation............................................................................................................................................................. 22
2.7 Vacuum and gas leakage test......................................................................................................................................... 23
2.8 Final test......................................................................................................................................................................... 23
3. MAINTENANCE ......................................................................................................................................................................... 24
3.1 Failure code .................................................................................................................................................................... 24
3.2 Trouble shooting ............................................................................................................................................................ 25
4. DISASSEMBLY IDU &ODU ......................................................................................................................................................... 28
4.1. IDU Disassembly............................................................................................................................................................ 28
4.2 ODU Assembly................................................................................................................................................................ 32
APPENDIX ................................................................................................................................................................................. 37
Appendix 1 The comparison table of Celsius-Fahrenheit temperature ................................................................................ 37
Appendix 2 The Pipe length and Gas charging..................................................................................................................... 37
Appendix 3 Pipes Flaring ...................................................................................................................................................... 38
Appendix 4 THERMISTOR TEMPERATURE CHARACTERISTICS............................................................................................... 39
