9
For Indoor unit power supply (The outdoor unit has a separate power supply.)
NOTE :
The connecting length indicated in the table represents the length from the pull box to the outdoor unit when the
indoor units are connected in parallel for power, as shown in the illustration below. A voltage drop of no more than
2% is also assumed. If the connecting length will exceed the length indicated in the table, select the wire thickness
in accordance with indoor wiring standards.
CAUTION
(1) Keep the refrigerant piping system and the indoor-indoor/indoor-outdoor control wiring systems together.
(2) When running power wires and control wires parallel to each other, either run them through separate
conduits, or maintain a suitable distance between them.
(Current capacity of power wires: 10A or less for 300mm, 50A or less for 500mm)
• Group Operation through a Remote Controller Switch
Group operation of multiple indoor units (8 units) through a single remote controller switch
AB AB AB AB AB AB
(A.B)
No.8No.7No.4No.3No.2
Indoor unit No.1
Remote
controller
8
Indoor unit
7654321
161514131211109
Earth leakage breaker
Switch
Pull box
Indoor power source
single phase 220–240V, 50Hz
220V, 60Hz
Item
Model
All models of indoor units
Power supply wiring
Wire size
2.0 mm² (AWG#14) Max. 20m 3.5 mm² (AWG#12) Max. 50m
6
ELECTRIC WIRING
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