Fujitsu AIRSTAGE J-II Design & Technical Manual page 490

POWER SUPPLY CABLE WIRING
„ „
Example : Power supply cable wiring.
z „
● Except for EMERGENCY, never turn off main as well as sub breaker of the indoor units during
operation. It will cause compressor failure as well as water leakage.
● First, stop the indoor unit by operating the control unit, converter or external input device and then
cut the breaker.
● Make sure to operate through the control unit, converter or external input device.
● When the breaker is designed, locate it at a place where the users cannot start and stop in the
daily work.
● Regulation of wire size and circuit breaker differs from each locality, please refer in accordance
with regional standard.
Outdoor unit power supply
1ø 50Hz 230V
Indoor unit power supply
1ø 50Hz 230V
Total Sub Breaker ≤ Main Breaker
(Using terminal board for indoor units)
Caution
AJ  A54
Sub Breaker
32A
Power cable
Sub Breaker
6mm
32A
Power cable
Sub Breaker
6mm
32A
Power cable
6mm
Sub Breaker
20A
Terminal board
Terminal board
Sub Breaker
20A
- (06 - 48) -
Outdoor units
AJ  A45 AJ  A40
2
2
2
Indoor
units
Power cable
2.5mm
Indoor
units
Connected within
refrigerant system.
Total MCA ≤ 15 (A).
2