Full Product Manual

8. WIRING DIAGRAM
8.2 Control board picture
24K
Main control board
NO. Description NO. Description
1 Compressor 13 Heater
2 DC fan 14 Electric heating belt
3 EE 15 SI
4 Coil temperature sensor 16 AC Power Lin
5 Ambient temperature sensor 17 AC Power Nin
6 Discharge temperature sensor 18 GND
7
Overheat protector
19
Reactor L1
8 Electronic expansion valve 20
Reactor L2
9 High pressure 21
Rectifier bridge
10 SW 22 IGBT
11 Computer/Checker 23
Diode
12
4-way valve 24 IPM
1
2
20
3
19
4
5
6
7
8
18
9
10
11
14
13
15
16
17
12
21
22
23
24
26