Printed Circuit Board Connector Wiring Diagram SiUS04-70210 Printed Circuit Board Connector Wiring Diagram1.2 FTXS15/18/24DVJUConnectors PCB(1) (Control PCB) (indoor unit)PCB(2) (Signal Receiver PCB)PCB(3) (Buzzer PCB)PCB(4) (Display PCB)PCB(5) (INTELLIGENT EYE sensor PCB)Note: Other designationsPCB(1) (Control PCB) (indoor unit)PCB(2) (Signal Receiver PCB)PCB(3) (Buzzer PCB)PCB(4) (Display PCB)1) S1 Connector for fan motor2) 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 PCB6) S28 Connector for signal receiver PCB7) S32 Connector for heat exchanger thermistor8) S35 Connector for Intelligent Eye sensor PCB1) S29 Connector for control PCB1) S27 Connector for control PCB2) S38 Connector for display PCB1) S37 Connector for buzzer PCB1) S36 Connector for control PCB1) V1 Varistor2) JA Address setting jumperJB Fan speed setting when compressor is OFF on thermostatJC Power failure recovery function∗ Refer to page 281 for detail.3) FU1 Fuse (3.15A)4) LED A LED for service monitor (green)1) SW1 Forced operation ON/OFF switch1) RTH1 Room temperature thermistor1) LED1 LED for operation (green)2) LED2 LED for timer (yellow)3) LED3 LED for Home Leave operation (red)