Fvxs09/12/15/18Nvju - Daikin 4MXL-T Series Service Manual

SiUS121827E
1.5

FVXS09/12/15/18NVJU

Control PCB
1)
(PCB2)
2)
3)
4)
5)
6)
7)
8)
9)
10)
11)
12)
13)
14)
15)
16)
E1
V2
V1
H2
H3
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 DC fan motor
S21 Connector for centralized control (HA)
S26 Connector for service PCB (PCB3)
S32 Indoor heat exchanger thermistor
S41 Connector for lower air outlet motor
S42 Connector for swing motor
S46 Connector for display/signal receiver PCB (PCB4)
S48 Connector for sensor PCB (PCB1)
H1, H2, H3 Connector for terminal strip
E1 Terminal for ground wire
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
∗ Refer to page 261 for details.
FU1 (F1U), Fuse (3.15 A, 250 V)
FU2 (F2U)
LED A LED for service monitor (green)
V1, V2 Varistor
FU2
FU1 H1 S1 LED A S21 S41 S42
Indoor Unit
JB
JA
JC
S32
S48
S46
S26
2P383711-1
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