Service Manual

SiUS121502E Indoor Unit
Printed Circuit Board Connector Wiring Diagram 21
Signal Receiver
PCB (PCB2)
Display PCB
(PCB3)
INTELLIGENT
EYE Sensor PCB
(PCB4)
Note: The symbols in the parenthesis are the names on the appropriate wiring diagram.
1) S48 Connector for control PCB
3P224121-1
S48
1) S49 Connector for control PCB
2) SW1 Forced cooling operation ON/OFF button
3) LED1 (H1P) LED for operation (green)
4) LED2 (H2P) LED for timer (yellow)
5) LED3 (H3P) LED for INTELLIGENT EYE (green)
6) RTH1 (R1T) Room temperature thermistor
3P224121-1
RTH1 SW1
LED3
LED2
LED1
S49
1) S36 Connector for control PCB
S36
3P227885-1