SiUS121632EA
Indoor Unit
Printed Circuit Board Connector Wiring Diagram
19
1. Indoor Unit
1.1
CTXG09/12/18QVJUW(S)
Control PCB
(A1P)
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.
1) S21
Connector for centralized control (HA)
2) S25
Connector for INTELLIGENT EYE sensor PCB (A3P)
3) S32
Indoor heat exchanger thermistor
4) S41
Connector for swing motors
5) S42
Connector for reduction motor (front panel mechanism) and limit switch
6) S46
Connector for display/signal receiver PCB (A2P)
7) S200
Connector for DC fan motor
8) H1, H2, H3
Connector for terminal strip (indoor - outdoor transmission)
9) FG
Connector for terminal strip (frame ground)
10) JB
Fan speed setting when compressor stops for thermostat OFF
∗
Refer to page 217 for details.
11) JC
Power failure recovery function (auto-restart)
∗
Refer to page 217 for details.
12) LED A
LED for service monitor (green)
13) F1U, F2U
Fuse (3.15 A, 250 V)
14) V1
Varistor
S42
S41
S32
JB
JC
S200
H3
H2
FG
S46
S21
F2U
S25
LED A
V1
F1U
H1
2P357399-6