Gree FLEXX Series

CONTENTS
1 Product Introduction ...................................................................................................... 3
1.1 Lists of Units .......................................................................................................................... 3
1.2 Electrical Parameters ............................................................................................................. 5
2 Control ............................................................................................................................. 6
2.1 Operation Mode ..................................................................................................................... 6
2.2 Control Mode ......................................................................................................................... 8
2.3 Functions ............................................................................................................................. 10
3 Troubleshooting ............................................................................................................ 14
3.1 Wiring Diagrams .................................................................................................................. 14
3.2 PCB Layout .......................................................................................................................... 17
3.3 Error Code ........................................................................................................................... 25
3.4 Troubleshooting ................................................................................................................... 26
3.5 Failures Not Caused by Errors ............................................................................................. 53
4 Maintenance .................................................................................................................. 55
4.1 System Diagram .................................................................................................................. 55
4.2 Connection Pipe Vacuum Pumping ...................................................................................... 55
4.3 Refrigerant Charging ............................................................................................................ 57
4.4 Maintenance of Major Components ...................................................................................... 59
4.5 Removal of Major Components ............................................................................................ 69
4.6 Explosive View and Lists of Parts ....................................................................................... 104
Appendices .................................................................................................................... 110
1 Resistance/Temperature Lists of Temperature Sensors ......................................... 110
1.1 Voltage List of 15 KΩ Temperature Sensors ....................................................................... 110
1.2 Voltage List of 20 KΩ Pipeline Temperature Sensors ......................................................... 112
1.3 Voltage List of 50 KΩ Discharge Temperature Sensors ...................................................... 114
2 Temperature/Pressure List of Refrigerant ................................................................ 117
3 Operation Tools .......................................................................................................... 117