Service manual

Indoor Unit SiBE06-708_C

26 Printed Circuit Board Connector Wiring Diagram

1. Indoor Unit

Control PCB

Caution Replace the PCB if you accidentally cut the jumpers other than JA, JB, and JC.

Jumpers are necessary for electronic circuit. Improper operation may occur if you cut any of

them.

1) S1 Connector for fan motor

2) S21 Connector for centralized control (HA)

3) S26 Connector for service PCB

4) S32 Connector for indoor heat exchanger thermistor

5) S41 Connector for lower air outlet motor

6) S42 Connector for swing motor

7) S46 Connector for display PCB

8) S48 Connector for sensor PCB

9) H1, H2, H3 Connector for terminal board

10) E1 Connector for earth

11) V1, V2 Varistor

12) JA Address setting jumper

∗ Refer to page 146 for detail.

13) JB Fan speed setting when compressor stops for thermostat OFF

JC Power failure recovery function

∗ Refer to page 149 for detail.

14) FU1 (F1U) Fuse (3.15A, 250V)

15) LED A LED for service monitor (green)

S1 LED A S21 S41 S42 S26

S46

S48

S32

FU1

2P191446-1