Toshiba R410A Installation Manual page 24

Wiring between indoor unit 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.
q Wiring example
Outdoor Power supply
380V-415V~, 50Hz
380V~, 60Hz
Circuit breaker
Outdoor unit
Header outdoor
Earth
terminal
S: The ground of a
shielded wire
Control wiring between indoor and outdoor units (Shield wire)
Control wiring between indoor units (Shield wire)
Indoor unit Indoor unit
Earth Earth
Indoor power supply
220V-240V~, 50Hz
208V-230V~, 60Hz
Remote controller
Circuit breaker,
Pull box
Power switch
45-EN
Outdoor Power supply
380V-415V~, 50Hz
380V~, 60Hz
Circuit breaker
Outdoor unit
Follower outdoor
Earth
terminal
S: The ground of a shielded wire
Control wiring between outdoor units (Shield wire)
Indoor unit
Fresh air intake
Earth
Earth
Remote controller Remote controller
Pull box Pull box
Group control
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46-EN