Outdoor Unit - Daikin 3MKS50E3V1B Service Manual

Outdoor Unit

1. Outdoor Unit

Connectors and PCB (1): Main PCB
Other Parts
1) S10
2) S15
3) S20 (white)
4) S21 (red)
5) S22 (blue)
6) S23 (yellow)
7) S24 (green)
8) S40
9) S51, S101
10)S70
11)S80
12)S90
13)S92
14)S93
15)AC1, AC2
16)HR1, HR2
17)E1, E2
18)U, V, W
19) FU1
20)FU2, FU3
21)V2, V3, V5
PCB (2): Service Monitor PCB
1) S52, S102
2) LED A
3) LED1 - LED4
4) LED 5
5) SW1
6) SW2
7) SW3
8) SW4
9) SW5
38
Connector for terminal board (indoor - outdoor transmission)
Connector for COOL / HEAT mode lock
∗ Refer to page 413 for detail.
Connector for electronic expansion valve coil A port
Connector for electronic expansion valve coil B port
Connector for electronic expansion valve coil C port
Connector for electronic expansion valve coil D port (for 4 and 5-room
model)
Connector for electronic expansion valve coil E port (for 5-room model
only)
Connector for overload protector
Connector for service monitor PCB
Connector for outdoor fan motor
Connector for four way valve coil
Connector for thermistors
(outdoor temperature, outdoor heat exchanger, discharge pipe
temperature)
Connector for gas pipe thermistors
Connector for liquid pipe thermistors
Connector for terminal board (power supply)
Connector for reactor
Connector for earth
Connector for compressor
Fuse (30 A, 250 V)
Fuse (3.15 A, 250 V)
Varistor
V6, V11 (for 40 - 58 class)
V9, V100 (for 68 - 90 class)
Connector for main PCB
LED for service monitor (green)
LED for service monitor (red)
LED for service monitor (red) (for 5-room model only)
Forced operation [ON/OFF] switch
∗ Refer to page 405 for detail.
Operation mode switch
∗ Refer to page 405 for detail.
Wiring error check switch
∗ Refer to page 406 for detail.
Priority room setting switch
∗ Refer to page 412 for detail.
NIGHT QUIET mode setting switch
∗ Refer to page 414 for detail.
Printed Circuit Board Connector Wiring Diagram
SiBE121135