Table of Contents
SiUS121827E
1.4
FDXS09/12LVJU, CDXS15/18/24LVJU
Control PCB
1)
(A1P)
2)
3)
4)
5)
6)
7)
8)
9)
10)
11)
12)
13)
S21
Caution
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.
Note
The symbols in the parenthesis are the names on the appropriate wiring diagram.
Part 3 Printed Circuit Board Connector Wiring Diagram
S1
Connector for AC fan motor
S7
Connector for AC fan motor (Hall IC)
S21
Connector for centralized control (HA)
S26
Connector for display/signal receiver PCB (A2P)
S32
Connector for indoor heat exchanger thermistor
H1, H2, H3
Connector for terminal block
FG (GND)
Connector for terminal block (ground)
JA
Address setting jumper
∗ Refer to page 258 for details.
JB
Fan speed setting when compressor stops for thermostat OFF
∗ Refer to page 261 for details.
JC
Power failure recovery function (auto-restart)
∗ Refer to page 261 for details.
LED A
LED for service monitor (green)
FU1 (F1U)
Fuse (3.15 A, 250 V)
V1
Varistor
LED A
JA
JC
V1
S1
FU1
JB
S32
S26
Indoor Unit
H2
FG
H1
H3
S7
2P292535-1
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Table of Contents
Troubleshooting
