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SiUS121630EA
Indoor Unit
Printed Circuit Board Connector Wiring Diagram
29
1.5
FVXS09/12/15/18NVJU
Control PCB
(PCB2)
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.
Note:
The symbols in the parenthesis are the names on the appropriate wiring diagram.
1) S1
Connector for DC fan motor
2) S21
Connector for centralized control (HA)
3) S26
Connector for service PCB (PCB3)
4) S32
Indoor heat exchanger thermistor
5) S41
Connector for lower air outlet motor
6) S42
Connector for swing motor
7) S46
Connector for display/signal receiver PCB (PCB4)
8) S48
Connector for sensor PCB (PCB1)
9) H1, H2, H3
Connector for terminal strip
10) E1
Terminal for ground wire
11) JA
Address setting jumper
∗
Refer to page 216 for details.
12) JB
Fan speed setting when compressor stops for thermostat OFF
∗
Refer to page 218 for details.
13) JC
Power failure recovery function
∗
Refer to page 218 for details.
14) FU1 (F1U),
FU2 (F2U)
Fuse (3.15 A, 250 V)
15) LED A
LED for service monitor (green)
16) V1, V2
Varistor
E1
V1
H2
H3
FU1
H1
S1
LEDA
S21 S41
S42
S26
S46
S48
JC
JA
JB
FU2
S32
V2
2P383711-1