60
Electrical wiring work
Power wiring diagram
3 phase 3wires 208-230V [AM
✴✴✴✴
XVAF
✴
]
3 phase 3wires 460V [AM
✴✴✴✴
XVAJ
✴
]
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)
f
Connect a power cable of the outdoor unit after checking that R-S-T (3 phase 3 wire) is properly connected.
f
Malfunction may occur if one or more of the wires among R-S-T phases (3 Phases-3 Wires) are not connected properly.
(*Malfunction: Turning on/off, occurrence of error, consecutive reset)
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 fire when they are not installed.