Samsung DVM S AM160FXVAGH - Page 70

70
Electrical wiring work
<When the module combination is not in the tables of “Outdoor unit combination”>
3 phase 4wires 380 - 415 V~
MCCB+
ELB
MCCB+
ELB
MCCB+
ELB
MCCB+
ELB
ELCB
ELCBELCB
ELCB ELCB
Main unit Sub unit
Main unit Sub unit 1 Sub unit 2
Singlephase 2wires
(220-240V~)
Grounding Grounding Grounding
Wired remote
controller
Wired remote
controller
Communication
cable (Outdoor unit ~
Outdoor unit)
Communication cable
(Outdoor unit ~ Indoor
unit)
Wired remote
controller
or
or
or or
Communication cable
(Outdoor unit ~ Indoor
unit)
Communication cable
(Outdoor unit ~ Outdoor
unit)
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 Communication cable between indoor and outdoor units and communication cable between outdoor units has no
polarity.
f 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.