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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
i C
c r
u
t i
b
e r
a
k
r e
Outdoor unit
Header outdoor
Ground
terminal
S: The ground of a
shielded wire
Control wiring between indoor and outdoor units (Shield wire)
Control wiring between indoor units (Shield wire)
Outside Air Unit
Outside Air Unit
Ground
Ground
L1 L2
L1 L2
Indoor power supply
208/230-1-60
Remote controller
Circuit breaker,
Pull box
Pull box
Power switch
39-EN
Outdoor Power supply
i C
c r
u
t i
b
e r
a
k
r e
Outdoor unit
Follower outdoor
Ground
terminal
S: The ground of a shielded wire
Control wiring between outdoor units (Shield wire)
Outside Air Unit
Outside Air Unit
Ground
Ground
L1 L2
L1 L2
Remote controller
Remote controller
Pull box
Group control
– 20 –
EN
EN
ID
40-EN
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