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Indoor Unit
SiUS091601EA
29
Part 3 Printed Circuit Board Connector Wiring Diagram
Note
Sensor PCB
(PCB1)
Service PCB
(PCB3)
Display/Signal
Receiver PCB
(PCB4)
LED3 does not function.
The symbols in the parenthesis are the names on the appropriate wiring diagram.
1)
S49
Connector for control PCB (PCB2)
2)
RTH2 (R1T)
Room temperature thermistor
S49
RTH2
3P191450-1
1)
S27
Connector for control PCB (PCB2)
2)
SW2 (S2W)-4
Switch for upward airflow limit setting
Refer to page 209 for details.
Keep the other switches as factory setting.
3)
SW4 (S4W)
Switch for airflow selection
Refer to page 46 for details.
S27
SW4
SW2-4
3P191448-1
1)
S47
Connector for control PCB (PCB2)
2)
SW1 (S1W)
Indoor unit
ON/OFF
switch
(Forced cooling operation
ON/OFF
switch)
Refer to page 199 for details of forced cooling operation.
3)
LED1 (H1P)
LED for operation (green)
4)
LED2 (H2P)
LED for timer (yellow)
S47
SW1
LED2
LED1
3P191447-1
Summary of Contents for FTX-N Series
Page 18: ...SiUS091601EA 13 Part 2 Specifications 1 Specifications 14 Part 2 Specifications...
Page 198: ...Check SiUS091601EA 193 Part 6 Service Diagnosis 18 24 class R24538 1 2 3 4 Multimeter...
Page 201: ...SiUS091601EA Check Part 6 Service Diagnosis 196 18 24 class R24539 DC DC W V U...
Page 229: ...SiUS091601EA Piping Diagrams Part 8 Appendix 224 RXL15QMVJU RXL18UMVJU 3D100007 3D123368...
Page 230: ...Piping Diagrams SiUS091601EA 225 Part 8 Appendix RXL24UMVJU 3D107985A...