
TCL Air Conditioner Service Manual
2
CONTENTS
Part
Ⅰ
Technical 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 .................................................................................................................. 11
4.1 Electronic Controller ............................................................................................................................ 11
PART
Ⅱ
Installation and Maintenance ................................................................................................................. 18
1. Notes for installation and maintenance ......................................................................................................... 18
2 Installation ..................................................................................................................................................... 26
2.1 Installation Dimension Diagram ........................................................................................................... 26
2.2 Accessory ............................................................................................................................................. 27
2.3 Tools .................................................................................................................................................... 27
2.4 Position ............................................................................................................................................... 28
2.5 Electricity and wiring ........................................................................................................................... 28
2.6 IDU Installation .................................................................................................................................... 28
2.7 ODU Installation
............................................................................................................................... 31
2.8 Vacuum and gas leakage test ................................................................................................................ 32
2.9 Final test .............................................................................................................................................. 32
3. Maintenance ................................................................................................................................................. 33
3.1 Failure code ......................................................................................................................................... 33
3.2 Trouble shooting .................................................................................................................................. 35
4. Disassembly IDU & ODU ................................................................................................................................ 58
4.1. IDU Disassembly ................................................................................................................................. 58
4.2 ODU Assembly ..................................................................................................................................... 62
APPENDIX .................................................................................................................................................................. 68
Appendix 1 The comparison table of Celsius‐Fahrenheit temperature ................................................................ 68
Appendix 2 The Pipe length and Gas charging ................................................................................................... 68
Appendix 3 Pipes Flaring ................................................................................................................................... 69
Appendix 4 THERMISTOR TEMPERATURE CHARACTERISTICS ............................................................................... 70