42
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Remote controller wiring
• As the remote controller wire has non-polarity, there is no problem if connections to indoor unit terminal
blocks A and B are reversed.
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Wiring diagram
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Wiring for flow selector unit (sold separately)
Connect control wiring and power supply following figure when installing a separately sold cooling/
heating switching unit.
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Address setup
Set up the addresses as per the Installation Manual supplied with the outdoor unit.
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Wiring on the ceiling panel
According to the Installation Manual of the ceiling panel, connect the connector (20P: White) of the ceiling
panel to the connector (CN510: White) on P.C. board of the electric parts box.
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Wiring between indoor and outdoor units
NOTE
An outdoor unit connected with control wiring between indoor and outdoor units wire becomes automatically
the header unit.
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Wiring example
U1 U2
U1 U2 U3 U4
L1 L2 L3 N
U5 U6
L N
A B
A B
U1 U2 U3 U4
L1 L2 L3 N
U5 U6
U1 U2
L N
A B
A B
U1 U2
L N
A B
A B
U1 U2
L N
A B
Pull box
Pull box
Pull box
Remote controller
Remote controller
Remote controller
Outdoor Power supply
380V-415V ~, 50Hz
380V ~, 60Hz
Outdoor Power supply
380V-415V ~, 50Hz
380V ~, 60Hz
Earth leakage breaker
Earth leakage breaker
Header outdoor unit
Indoor unit
Indoor power supply
220-240V ~, 50Hz
220V ~, 60Hz
Earth
leakage breaker
power switch
Indoor unit
Indoor unit
Indoor unit
Earth
Earth
Earth
Earth
Follower outdoor unit
Earth
terminal
Earth
terminal
Control wiring between outdoor units
Control wiring between indoor and outdoor units
Control wiring between indoor units
A
B
A
B
Terminal block for
remote controller wiring of indoor unit
Terminal block
Remote controller wire
(Field supply)
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ELECTRICAL WORK
Indoor P.C. board
Faston connection
Earth screw
Earth screw
Power supply
CN081 (Black)
Clamp with remote controller lead wires
Attached wire (Control wiring)
Attached wire (Power supply)
R(L), S(N) terminal block
for power supply
