Aurora Service Manual

Outdoor Unit SiUS121737EA
41 Printed Circuit Board Connector Wiring Diagram
6. Outdoor Unit
Main PCB
(PCB1)
1) S Connector for terminal board (indoor - outdoor transmission)
2) S15 Connector for COOL/HEAT mode lock
∗ Refer to page 229 for details.
3) S20 (white) Connector for electronic expansion valve coil A port
4) S21 (red) Connector for electronic expansion valve coil B port
5) S22 (blue) Connector for electronic expansion valve coil C port (24 class)
6) S40 Connector for overload protector
7) S70 Connector for DC fan motor
8) S80 Connector for four way valve coil
9) S90 Connector for thermistors
(outdoor temperature, outdoor heat exchanger, discharge pipe)
10) S92 Connector for gas pipe thermistor
11) S93 Connector for liquid pipe thermistor
12) S201, S202 Connector for service monitor PCB (PCB2)
13) HL1, HN1 Connector for terminal strip (power supply)
14) E1, E2 Connector for ground wire
15) U, V, W Connector for compressor
16) FU1, FU2 Fuse (3.15 A, 250 V)
17) FU3 Fuse (30 A, 250 V)
18) V2, V3, V401 Varistor