78 PB
COMPONENTS TESTING
Printed Circuit Board (Outdoor)
Figure 612 (9-12k units)
OU-PCB-SYD/SVE Outdoor Unit Printed Circuit Board Identication
1 Terminal of compressor U
phase
10 Outdoor ambient
temperature sensor
2 Terminal of compressor V
phase
11 Terminal of 4-way valve
3 Terminal of compressor W
phase
12 Terminal of heater
4 Terminal of DC fan 13 communication wire to
terminal block
5 Terminal of electronic
expansion valve
14 Terminal of nuetral wire to
terminal block
6 Terminal of compressor
overload protector
15 Terminal of live wire to
terminal block
7 Compressor discharge
temperature sensor
16 Terminal of ground wire
8 Terminal of AC fan 17 Terminal of reactor
9 Outdoor pipe temperature
sensor
18 Terminal of reactor
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