Service Manual

Outdoor Unit SiUS121502E
32 Printed Circuit Board Connector Wiring Diagram
Service Monitor
PCB (PCB2)

SW6-2 and all the switches of SW5 have no function. Keep them OFF.
1) S501, S502 Connector for main PCB
2) LED A LED for service monitor (green)
3) LED1 - LED5 LED for service monitor (red)
4) SW1 Forced cooling operation ON/OFF switch
∗ Refer to page 178 for detail.
5) SW2 Operation mode switch
∗ Refer to page 178 for detail.
6) SW3 Wiring error check switch
∗ Refer to page 179 for detail.
7) SW4 Priority room setting switch
∗ Refer to page 185 for detail.
8) SW6-1 NIGHT QUIET mode setting switch
∗ Refer to page 186 for detail.
3P346711-10
S502SW6-1SW2SW3
LED5 LED4 LED3 LED2 LED1 LED A S501
SW1 SW4