Outdoor Unit SiBE121123_A
49 Printed Circuit Board Connector Wiring Diagram
4. Outdoor Unit
PCB Detail
Caution Replace the PCB if you accidentally cut the jumpers other than J3 and J5.
Jumpers are necessary for electronic circuit. Improper operation may occur if you cut any of
them.
1) S20 Connector for outdoor electronic expansion valve coil A port
2) S21 Connector for outdoor electronic expansion valve coil B port
3) S40 Connector for overload protector
4) S45 Connector for terminal board (thermal fuse)
5) S70 Connector for fan motor
6) S80 Connector for four way valve coil
7) S90 Connector for thermistors
(outdoor temperature, outdoor heat exchanger, discharge pipe)
8) S91 Connector for thermistors (gas pipe)
9) S92 Connector for thermistors (liquid pipe)
10) E
E2
Terminal for earth (40 class)
Terminal for earth (50 class)
11) HL1, HN1 Connector for terminal board (power supply)
12) HR1, HR2 Connector for reactor
13) S-A Connector for terminal board (room A - outdoor transmission)
14) S-B Connector for terminal board (room B - outdoor transmission)
15) U, V, W Connector for compressor
16) LED A LED for service monitor (green)
17) FU1, FU2 Fuse (3.15 A / 250 V)
18) FU3 Fuse (30 A / 250 V)
19) J3 Jumper for ECONO operation prohibition setting
∗ Refer to page 239 for detail.
20) J5 Jumper for improvement of defrost performance
∗ Refer to page 239 for detail.
21) V1, V3, V4 Varistor
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