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Power supply cable wiring
Power cable
Junction box—indoor unit (primary) 3-wires
Junction box—indoor unit (secondary) 2-wires
Outdoor unit 2-wires
Bus wire Indoor unit—indoor unit 3-wires
Remote controller cable 3-wires
Example:
Outdoor unit
Remote controller
Power cable
6.0 mm
2
× 2-wires
Junction box
(Locally purchased)
Power cable
(Junction box - indoor unit
connection cable)
1.5 mm
2
× 3-wires
Power cable
(Junction box - indoor unit
connection cable)
1.5 mm
2
× 2-wires
Remote controller cable
0.33 mm
2
× 3-wires
Bus wire
(Indoor unit - indoor unit
connection cable)
0.33 mm
2
× 3-wires
Main breaker
30 A
Power supply
400 V ~ 50 Hz
Indoor unit
(Secondary)
Indoor unit
(Primary)
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4-2. Power supply cable wiring 4. Wiring design
SYSTEM
DESIGN
SYSTEM
DESIGN