42/50 Class - Daikin FTXM-K Series Service Manual

SiBE041434E
2.2

42/50 Class

Main PCB (PCB1)
1) S20
2) S40
3) S70
4) S80
5) S90
6) HL1, HN1, S
7) E1, E2
8) U, V, W
9) FU1, FU2
10) FU3
11) LED A
12) V1, V2, V3
13) J6
14) J8
FU3
E1, E2
V3
V2
FU1
V1
Caution Replace the PCB if you accidentally cut a wrong jumper.
Jumpers are necessary for electronic circuit. Improper operation may occur if you cut any of
them.
Printed Circuit Board Connector Wiring Diagram
Connector for electronic expansion valve coil
Connector for overload protector
Connector for DC fan motor
Connector for four way valve coil
Connector for thermistors
(outdoor temperature, outdoor heat exchanger, discharge pipe)
Connector for terminal board
Terminal for earth wire
Connector for compressor
Fuse (3.15 A, 250 V)
Fuse (30 A, 250 V)
LED for service monitor (green)
Varistor
Jumper for facility setting
∗ Refer to page 113 for detail.
Jumper for improvement of defrost performance
∗ Refer to page 114 for detail.
HL1, HN1, S
S80 S20 S40 S90 J8 J6
S70
Outdoor Unit
LED A
U, V, W
FU2
2P356484-10
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