14
8
WIRING SPECIFICATIONS
Outdoor unit model
Outdoor unit power supply
Outdoor unit input capacity
*1
Main switch (Breaker)
Outdoor unit power supply
Outdoor unit power supply earth
Indoor unit-Outdoor unit
*2
Indoor unit-Outdoor unit earth
*2
Remote controller-Indoor unit
*3
Outdoor unit L-N (single)
*4
Outdoor unit L1-N, L2-N, L3-N (3 phase)
Indoor unit-Outdoor unit S1-S2
*4
Indoor unit-Outdoor unit S2-S3
*4
Remote controller-Indoor unit
*4
Wir
ing
Wire No
.
o
siz
e (mm
2
)
Circuit rating
P100, 125V
P140V
~/N (single), 50 Hz,
~/N (single), 50 Hz,
230 V
230 V
32 A
40 A
2
o
Min. 4
2
o
Min. 6
1
o
Min. 4
1
o
Min. 6
3
o
1.5 (Polar)
3
o
1.5 (Polar)
1
o
Min. 1.5
1
o
Min. 1.5
2
o
0.3 (Non-polar)
2
o
0.3 (Non-polar)
AC 230 V
AC 230 V
AC 230 V
AC 230 V
DC 24 V
DC 24 V
DC 12 V
DC 12 V
*1. A breaker with at least 3 mm contact separation in each poles shall be provided. Use non-fuse breaker (NF) or earth leakage breaker (NV).
*2. Refer to 8-3.
*3. The 10 m wire is attached in the remote controller accessory.
*4. The figures are NOT always against the ground.
S3 terminal has DC 24 V against S2 terminal. However between S3 and S1, these terminals are NOT electrically insulataed by the transformer or other device.
Notes: 1. Wiring size must comply with the applicable local and national code.
2. Power supply cords and Indoor/Outdoor unit connecting cords shall not be lighter than polychloroprene sheathed flexible cord. (Design 245 IEC 57)
3. Install an earth longer than other cables.
S1
S2
S3
S1
S2
S3
Warning:
In case of A-control wiring, there is high voltage potential on the S3 terminal caused by electrical circuit design that has no electrical insulation between power line
and communication signal line. Therefore, please turn off the main power supply when servicing. And do not touch the S1, S2, S3 terminals when the power is
energized. If isolator should be used between indoor unit and outdoor unit, please use 3-poles type.
230V
Single phase
Isolator
3 poles isolator
A-Control
Outdoor Unit
A-Control
Indoor Unit
8-1. FIELD ELECTRICAL WIRING (power wiring specifications)
1
2
S1
S2
S3
S1
S2
S3
Indoor/outdoor
unit connection
cable
Indoor
unit
Unit
power
supply
Outdoor
unit
Remote
controller
L
B
N
B
Earth leakage breaker
C
wiring circuit breaker or
isolating switch
C
B
B
Earth leakage breaker
C
wiring circuit breaker or
isolating switch
C
L
N
1
2
1
2
S1
Indoor
unit
S2
S3
S1
S2
S3
S1
S2
S3
Unit
power
supply
Indoor/outdoor
unit connection
cable
Indoor
unit
Outdoor
unit
Remote
controller
B
B
Earth leakage breaker
C
wiring circuit breaker or
isolating switch
C
1
2
1
2
1
2
S1
S2
S3
S1
S2
S3
S1
S2
S3
S1
S2
S3
Indoor/outdoor
connection cable
Indoor
unit
Unit
power
supply
Indoor
unit
Indoor
unit
Outdoor
unit
Remote
controller
L
N
1:1 system
Synchronized twin and triple system Electrical wiring
• Synchronized twin
• Synchronized triple
OC359A-1.qxp 06.7.12 3:06 PM Page 14
