Indoor Unit - Daikin SiBE04-624_B_FTXR-E Service Manual

Indoor Unit

1. Indoor Unit
A1P: Control PCB
1) S1
2) S21
3) S32
4) S41
5) S43
6) S46
7) S48
8) S51
9) S52
10)H1, H2, H3
11)FG
12)FU1 (F1U)
13)LED A
14)JB
15)V1 (R1V)
JC
S46
S32
S48
LED A
S43
Caution Replace the PCB if you accidentally cut the jumpers other than JB and JC.
Jumpers are necessary for electronic circuit. Improper operation may occur if you cut any of
them.
10
Connector for fan motor
Connector for centralized control (HA)
Indoor heat exchanger thermistor (R1T)
Connector for swing motors (horizontal, vertical)
Connector for dehumidifying solenoid valve coils
Connector for display PCB
Connector for humidity sensor PCB
Connector for reduction motor, limit switch (front panel)
Connector for streamer unit PCB
Connector for terminal board (indoor - outdoor transmission)
Connector for terminal board (frame ground)
Fuse (3.15 A, 250 V)
LED for service monitor (green)
Fan speed setting when compressor stops for thermostat OFF
JC Power failure recovery function (auto-restart)
*Refer to page 150 for detail.
Varistor
JB
S21 S52
S51
S41 S1
Printed Circuit Board Connector Wiring Diagram
SiBE04-624_B
H1 H3
FU1 V1
2P178488-1
FG
H2