SiUS122226E Indoor Unit
Part 3 Printed Circuit Board Connector Wiring Diagram 35
1.3 FVXS09/12/15/18WVJU9
Control PCB
(PCB2)
Replace the PCB if you cut a jumper unintentionally.
Jumpers are necessary for electronic circuit. Improper operation may occur if you cut any of them.
1) S1 Connector for DC fan motor
2) S21 Connector for centralized control (HA)
3) S26 Connector for service PCB (PCB3)
4) S32 Connector for indoor heat exchanger thermistor (R2T)
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 252 for details.
12) JB Fan speed setting when compressor stops for thermostat OFF
Refer to page 255 for details.
13) JC Power failure recovery function
Refer to page 255 for details.
14) F1U, F2U Fuse (3.15 A, 250 V)
15) LED A LED for service monitor (green)
16) V1, V2 Varistor
E1
V1
H2
H3
F1U H1 S1 LED A S21 S41 S42 S26
S46
S48
JC
JA
JB
F2U
S32
V2
2P383711-1
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