SiUS181305E Indoor Unit
Printed Circuit Board Connector Wiring Diagram 22
3.3 FTXS15/18/24LVJU
Control PCB
Caution Replace the PCB if you accidentally cut the jumpers other than JA, JB, and JC.
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) S25 Connector for INTELLIGENT EYE sensor PCB
4) S32 Indoor heat exchanger thermistor
5) S41 Connector for swing motors
6) S46 Connector for display PCB
7) S47 Connector for signal receiver PCB
8) H1, H2, H3, FG Connector for terminal board
9) JA Address setting jumper
Refer to page 111 for detail.
10)JB Fan speed setting when compressor stops for thermostat OFF
JC Power failure recovery function (auto-restart)
Refer to page 112 for detail.
11)LED A LED for service monitor (green)
12)FU1 (F1U) Fuse (3.15 A, 250 V)
13)V1 Varistor
2P227881-6
FU1
(3.15A)
V1
H1
H2FGH3
LED A
S32
S1S41
S46
S25
S47
S21
JB
JA
JC
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