Service Manual
(3)Model:GWHD(36)NK3BO GWHD(42)NK3BO
● Top view
21
1
Terminal of expansion valve
2
G-MatrikII chip
3
Jumper cap
4
Terminal of temperature sensor
5
STM8S207 chip
6
Overload protection terminal of compressor
7
Low-pressure protection terminal
8
Low-pressure switch 1
9
High-pressure switch 2
10 Terminal of 4-way valve
● Bottom view
Technical Information
1
2
3
4
20
19
18
5
6 7
8
9
17
16
15
14
11 Communication interface between indoor unit
and outdoor unit
12 PTC resistance
13 Piezoresistor
14 DC fan terminal
15 Relay
16 Common-mode induction
17 Rectifier
18 Electrolytic capacitor
19 IPM module
20 PFC module
21 Transformer
10
11
13
12
23
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