Service Manual
5.2 PCB Printed Diagram
(1)Model:GWHD(18)NK3FO
● Top view
● Bottom view
Technical Information
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2 3
4
5
6
7
1
1
2
8
9
10
3
4
5
11
6
12
7
8
9
13
10
11
14
15
12
16
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14
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Terminal of compressor
Terminal of low-
temperature cooling
temperature sensor
Overload protection
terminal of compressor
Terminal of temperature
sensor for outdoor unit
High-pressure protection
terminal
Low-pressure protection
terminal
Terminal of outdoor fan
Electric heating terminal
of chassis
4-way valve terminal
Electric heating terminal
of compressor
Terminal of temperature
sensor wire for gas
valve and liquid valve
Terminal of electronic
expansion valve
Terminal of
communication wire
between indoor unit and
outdoor unit
Terminal of neutral wire
for communication
Terminal of live wire
Terminal of neutral wire
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