24
Technical Information
Service Manual
Outdoor Unit
● Bottom view
6
7
8
9
101112
13141516
1719 18
20
21
22
1 2 3 4 5
NO. Name NO. Name NO. Name
1 Compressor output port 9 Live wire 17 Terminal of outdoor fan
2 Master control chip 10
Connection wire between boards of
neutral wire connects AC-N4
18
Connect the negative pole of external
big electrolytic capacitor
3 Overload temperature of compressor 11
Connection wire between boards of
live wire connects AC-L2
19
Connect the positive pole of external
big electrolytic capacitor
4 Temperature of temperature sensor 12
Neutral wire terminal for electric
heating
20
Wire connection terminal between
boards of neutral wire connects AC-N3
5 EEPROM 13
Live wire terminal for chassis electric
heater
21
Connection wire between boards of
live wire connects AC-L3
6 Communication wire port 14
Live wire terminal for compressor
electric heater
22
Connect the middle position of
external big electrolytic capacitor
7 Earthing wire port 15 4-way valve wiring terminal /
8 Port of power neutral wire 16 Terminal of electronic expansion valve /
All models is except
：
GWC12QC-D3DNC8H(CB456003101)
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