Samsung KXWD Series Installation Manual page 62

Electrical wiring work
3 phase 3 wires 208~230 V [AM✴✴✴HXWAF✴] / 3 phase 3 wires 460 V [AM✴✴✴HXWAJ✴]
Main outdoor unit
MCCB+
ELB
or
ELCB
1 phase 2 wires
(208 -230 V)
MCCB+
ELB
or
ELCB
Wired remote Wired remote
controller controller
Main outdoor unit
Communication cable
(Outdoor unit ~ Indoor unit )
Connect a power cable of the outdoor unit after checking that R-S-T (3 phase 3 wire) is properly connected.
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 fire when they are not installed.
3 phase 3 wires 208 ~ 230 V [AM✴✴✴HXWAF✴]
3 phase 3 wires 460 V [AM✴✴✴HXWAJ✴]
Sub outdoor unit 1
MCCB+
ELB
or
ELCB
Communication cable
(Outdoor unit ~ Outdoor unit)
Communication cable
(Outdoor unit ~ Indoor unit)
❋
Grounding
Wired remote
controller
Sub outdoor unit
Communication cable
(Outdoor unit ~ Outdoor unit )
ENGLISH-62
Sub outdoor unit 2
MCCB+
ELB
or
ELCB