– 40 –
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.
▼
Wiring diagram
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.
▼
Wiring example
A
B
A
B
Terminal block for
remote controller
wiring of indoor unit
Remote controller wire
(Field supply)
Terminal block
Remote
controller unit
380-415 V ~, 50 Hz
380 V ~, 60 Hz
220-240 V ~, 50 Hz
220 V ~, 60 Hz
380-415 V ~, 50 Hz
380 V ~, 60 Hz
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
Outdoor Power supply
Earth
terminal
Earth
terminal
Outdoor Power supply
Earth leakage
breaker
Earth leakage
breaker
Header outdoor unit
Follower outdoor unit
Control wiring between outdoor units
Control wiring between indoor and outdoor units
Control wiring between indoor units
Indoor unit
Indoor unit
Indoor unit
Indoor unit
Earth
Earth
Earth
Earth
Remote controller
Remote controller
Remote controller
Indoor power supply
Circuit breaker
power switch
Pull box
Pull box
Pull box
Wiring for flow selector unit (sold separately)
Connect control wiring and power supply following figure when installing a separately sold Super Heat Recovery
Multi System.
Address setup
Set up the addresses as per the Installation Manual supplied with the outdoor unit.
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 electrical control box.
R(L), S(N) terminal block
for power supply
Indoor P.C. board
Faston connection
Earth screw
Earth screw
Power supply
Attached wire (Power supply)
Attached wire (Control wiring)
Clamp with remote controller lead wires
CN81
(Black)
79-EN
80-EN
+001114119501.book Page 40 Wednesday, October 17, 2012 8:23 PM