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Control 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.
▼ Wiring example
Outdoor Power supply
380V-415V ~, 50 Hz
380V ~, 60 Hz
Earth
terminal
S: The ground of a
shielded wire
Indoor unit
Earth
Indoor power supply
220-240V ~, 50 Hz
208-230V ~, 60 Hz
Circuit breaker,
Pull box
Power switch
Address setup
Set up the addresses as per the Installation Manual supplied with the outdoor unit.
Outdoor Power supply
380V-415V ~, 50 Hz
380V ~, 60 Hz
Circuit breaker
Outdoor unit
Header outdoor
Earth
terminal
S: The ground of a shielded wire
Control wiring between outdoor units (Shield wire)
Control wiring between indoor and outdoor units (Shield wire)
Control wiring between indoor units (Shield wire)
Indoor unit
Earth
Remote controller
Remote controller
Pull box
‒ 32 ‒
Circuit breaker
Outdoor unit
Follower outdoor
Indoor unit
Indoor unit
Earth
Earth
Remote controller
Pull box
Group control
Installation Manual
32-EN
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