Indoor Unit SiUS12-928_B
17 Printed Circuit Board Connector Wiring Diagram
1. Indoor Unit
1.1 CTXS07JVJU, CTXS09/12HVJU, FTXS15/18HVJU
Connectors and
Other Parts
PCB (1): Control PCB
PCB (2): Signal Receiver PCB
PCB (3): Buzzer PCB
PCB (4): Display PCB
PCB (5): INTELLIGENT EYE Sensor PCB
Caution Replace the PCB if you accidentally cut the jumpers other than JA, JB, and JC.
Jumpers are necessary for electronic circuit. Improper operation may occur if you cut any of them.
1) S1 Connector for fan motor
2) S6 Connector for swing motor (horizontal blades)
3) S8 Connector for swing motor (vertical blades)
4) S21 Connector for centralized control (HA)
5) S26 Connector for buzzer PCB
6) S28 Connector for signal receiver PCB
7) S32 Connector for indoor heat exchanger thermistor
8) S35 Connector for INTELLIGENT EYE sensor PCB
9) H1, H2, H3, FG Connector for terminal board
10)JA Address setting jumper
Refer to page 265 for detail.
11)JB Fan speed setting when compressor stops for thermostat OFF
JC Power failure recovery function (auto-restart)
Refer to page 266 for detail.
12)LED A LED for service monitor (green)
13)FU1 Fuse (3.15 A, 250 V)
14)V1 Varistor
1) S29 Connector for control PCB
2) SW1 (S1W) Forced operation [ON/OFF] button
1) S27 Connector for control PCB
2) S38 Connector for display PCB
3) RTH1 (R1T) Room temperature thermistor
1) S37 Connector for buzzer PCB
2) LED1 (H1P) LED for operation (green)
3) LED2 (H2P) LED for timer (yellow)
4) LED3 (H3P) LED for HOME LEAVE operation (red)
1) S36 Connector for control PCB
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