Daikin 4MXS-R Series Service Manual page 48

Indoor Unit
Sensor PCB
(PCB1)
1) S49
2) RTH2 (R1T)
Service PCB
(PCB3)
1) S27
2) SW2 (S2W)-4
3) SW4 (S4W)
Display/Signal
Receiver PCB
1) S47
(PCB4)
2) SW1 (S1W)
3) LED1 (H1P)
4) LED2 (H2P)
Note: The symbols in the parenthesis are the names on the appropriate wiring diagram.
35
Connector for control PCB (PCB2)
Room temperature thermistor
S49
Connector for control PCB (PCB2)
Switch for upward airflow limit setting
∗ Refer to page 236 for details.
∗ Keep the other switches as factory setting.
Switch for airflow selection
∗ Refer to page 53 for details.
SW4
SW2-4
Connector for control PCB (PCB2)
Indoor unit ON/OFF button
LED for operation (green)
LED for timer (yellow)
LED1
LED2 SW1
LED3 does not function.
RTH2
3P191450-1
S27
3P191448-1
S47
3P191447-1
Printed Circuit Board Connector Wiring Diagram
SiUS121736EA