Wiring between indoor and outdoor units
NOTE
• A wiring diagram below is an example for connection to SMMS-u series. For connecting to other
outdoor unit series, refer to the Installation Manual attached to the outdoor unit to be connected.
4
Wiring example
Outdoor Power supply
380V - 415V ~, 50 Hz
380V ~, 60 Hz
Outdoor Power supply
380V - 415V ~, 50 Hz
380V ~, 60 Hz
Earth
terminal
S: The ground of a
shielded wire
S: The ground of a shielded wire
Earth
terminal
Earth
Indoor unit
Earth
Indoor unit
Earth
Indoor unit
Earth
Indoor unit
Circuit breaker
Circuit breaker
Outdoor unit
Header outdoor
Outdoor unit
Follower outdoor
Control wiring between outdoor units (Shield wire)
Control wiring between indoor and outdoor units (Shield wire)
Control wiring between indoor units (Shield wire)
Indoor power supply
220V - 240V ~, 50 Hz
208V - 230V ~, 60 Hz
Circuit breaker,
Power switch
Pull box
Pull box
Group control
Remote controller
Remote controller
Remote controller
Pull box
Address setup
Set up the addresses as per the Installation Manual supplied with the outdoor unit.
Wired remote controller wiring
• As the wired remote controller wire has non-polarity, there is no problem if connections to indoor unit
terminal blocks A and B are reversed.
4
Wiring diagram
Terminal block for
remote controller wiring
of indoor unit
Wired remote
controller unit
Wired remote controller wire
(Procured locally)
Terminal block
BOOK_1130550101_EN.indd 30
BOOK_1130550101_EN.indd 30
11/2/2564 BE 19:18
11/2/2564 BE 19:18
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