Indoor Unit SiUS181631EA
34 Printed Circuit Board Connector Wiring Diagram
3.5 FDXS09/12LVJU, CDXS15/18/24LVJU
Control PCB
(A1P)
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 AC fan motor
2) S7 Connector for AC fan motor (Hall IC)
3) S21 Connector for centralized control (HA)
4) S26 Connector for display/signal receiver PCB (A2P)
5) S32 Connector for indoor heat exchanger thermistor
6) H1, H2, H3 Connector for terminal strip
7) FG (GND) Connector for terminal strip (ground)
8) JA Address setting jumper
∗
Refer to page 141 for details.
9) JB Fan speed setting when compressor stops for thermostat OFF
∗
Refer to page 143 for details.
10) JC Power failure recovery function (auto-restart)
∗
Refer to page 143 for details.
11) LED A LED for service monitor (green)
12) FU1 (F1U) Fuse (3.15 A, 250 V)
13) V1 Varistor
H2
H1
H3
FG
JB
S21
2P292535-1
LED A
JC
JA
S7
S1
FU1
S26
V1
S32
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