SMMS High-Wall Type
Installation Manual
– 17 –
Control wiring between indoor and outdoor units
NOTE
An outdoor unit that is interconnected to the indoor units automatically becomes the header unit.
▼
Wiring example
Address setup
Set up the addresses as per the Installation Manual supplied with the outdoor unit.
L1
L2
Ln
Indoor unit
Remote controller inter-unit wiring
Indoor unit
Indoor unit
Indoor unit
Wired remote
controller
(Max. 8 units)
Wired remote
controller
wiring
220-240V, ~, 50Hz
220V ~, 60Hz
380V-415V ~, 50Hz
380V ~, 60Hz
U1 U2
U1 U2 U3 U4
L1 L2 L3 N
U5 U6
L
N
A
B
A
B
380V-415V ~, 50Hz
380V ~, 60Hz
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
Earth leakage
breaker power
switch
Pull box
Pull box
Pull box
17-EN
