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<When the module combination is not in the tables of “Outdoor unit combination”>
3 phase 4wires 380 - 415 V~
Main unit
Sub unit
Communication
cable (Outdoor unit
~ Outdoor unit)
Main unit Sub unit 1 Sub unit 2
Single phase 2
wires 208-230V
Communication
cable (Outdoor unit
~ Indoor unit)
Grounding Grounding Grounding
Wired
remote
controller
Wired
remote
controller
Wired
remote
controller
or
ELCB
MCCB+
ELB
or
ELCB
MCCB+
ELB
or
ELCB
MCCB+
ELB
MCCB +
ELB
or
ELCB
Communication
cable (Outdoor unit
~ Indoor unit)
Communication
cable (Outdoor unit
~ Outdoor unit)
Connect a power cable of the outdoor unit after checking that R-S-T-N (3 phase 4 wire) is properly connected. (If
the 380-415V power is supplied to the N phase, PCB and other electrical part will be damaged.)
Communication cable between indoor and outdoor units and communication cable between outdoor units has no
polarity.
Arrange the cables with a cable tie.
ELCB and ELB must be installed since there is risk of electric shock or re when they are not installed.
DVM S HE_IM_DB68-05461A-08_EN.indd 77 2017-03-24 오후 1:38:37