ENGLISH-53
02
Inst
all
Ing
the
P
rO
duc
t
Power wiring diagram
Supplying 3 phase 4 wires (380-415 V~)
3 phase 4 wires
(380 ~ 415 V)
Main outdoor unit
Main outdoor unit
Sub outdoor unit
Sub outdoor unit
Communication
cable (Outdoor unit
~ Outdoor unit)
Main outdoor
unit
Sub outdoor
unit 1
Sub outdoor
unit 2
Communication
cable (Outdoor unit
~ Indoor unit)
Grounding Grounding Grounding
Wired remote
controller
Wired remote
controller
Wired remote
controller
MCCB+
ElB
or
ElCB
Communication
cable (Outdoor unit ~
Indoor unit )
Communication
cable (Outdoor unit ~
Outdoor unit )
Single phase 2 wires
(220 -240 V)
MCCB+
ElB
or
ElCB
f
f
Connect a power cable of the outdoor unit after checking that R-S-T-n (3 phase 4 wire) is properly connected . (If the 380-
415 V power is supplied to the n phase, PCB and other electrical part will be damaged .)
f
f
Communication cable between indoor and outdoor units and communication cable between outdoor units has no
polarity .
f
f
Arrange the cables with a cable tie .
❋
❋
ElCB and ElB must be installed since there is risk of electric shock or fire when they are not installed .
