Outdoor unit model
M200/250
Outdoor unit power supply
3N~ (3 ph 4-wires), 50 Hz, 400 V
Outdoor unit input capacity main switch (Breaker) *1
32 A
Wiring
Wire No. × size (mm²)
Outdoor unit power supply
*5
5 × Min 4
Indoor unit-Outdoor unit
*2
Cable length 50 m:3×4 (Polar)/Cable length 80 m:3×6 (Polar)
Indoor unit-Outdoor unit earth
*2
1 × Min 2.5
Remote controller-Indoor unit
*3
2 × 0.3 (Non-polar)
Circuit rating
Outdoor unit L1-N, L2-N, L3-N (3 phase) *4
230 VAC
Indoor unit-Outdoor unit S1-S2
*4
230 VAC
Indoor unit-Outdoor unit S2-S3
*4
28 VDC
Remote controller-Indoor unit
*4
12 VDC
*1. A breaker with at least 3.0 mm contact separation in each pole shall be provided. Use earth leakage breaker (NV).
Make sure that the current leakage breaker is one compatible with higher harmonics.
Always use a current leakage breaker that is compatible with higher harmonics as this unit is equipped with an inverter.
The use of an inadequate breaker can cause the incorrect operation of inverter.
*2. Maximum 80 m. Total maximum including all indoor/indoor connection is 80 m.
• Use one cable for S1 and S2 and another for S3 as shown in the picture.
• Maximum 50 m. Total maximum for PEA. Wiring size 3 x 1.5 (Polar).
*3. The 10 m wire is attached in the remote controller accessory.
*4. The figures are NOT always against the ground.
S3 terminal has 28 VDC against S2 terminal. However between S3 and S1, these terminals are NOT electrically insulated by the transformer or other device.
*5. In multi-phase appliances, the colour of the neutral conductor of the supply cord, if any, shall be blue.
Caution: Be sure to install N-Line. Without N-Line, it could cause damage to the unit.
19
OCH775
8
WIRING SPECIFICATIONS
8-1. FIELD ELECTRICAL WIRING (power wiring specifications)
B
Earth leakage breaker
C
wiring circuit breaker or
isolating switch
1
2
1
2
S1
Indoor
unit
S2
S3
S1
S2
S3
S1
S2
S3
Indoor/outdoor
unit connection
cable
Indoor
unit
Remote
controller
Outdoor
unit
L
1
L
2
L
3
N
Unit
power
supply
B
C
B
Earth leakage breaker
C
wiring circuit breaker or
isolating switch
1
2
1
2
1
2
S1
S2
S3
S1
S2
S3
S1
S2
S3
S1
S2
S3
Indoor/outdoor
connection cable
Indoor
unit
Indoor
unit
Indoor
unit
Remote
controller
Outdoor
unit
L
1
L
2
L
3
N
Unit
power
supply
B
C
Synchronized twin and triple system Electrical wiring
• Synchronized twin
• Synchronized triple
Notes: 1. Wiring size must comply with the applicable local and national code..
2. Power supply cables and Indoor/Outdoor unit connecting cables shall not be lighter than polychloroprene sheathed flexible cable.
3. install an earth line longer than power cables.
Warning:
In the 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-pole type.
(Design 60245 IEC 57)
S1
S2
S3
S1
S2
S3
A-Control
Outdoor Unit
3 poles isolator
Power supply
Isolator
A-Control
Indoor Unit
Never splice the power cable or the indoor-outdoor connection cable, otherwise it may result in a smoke, a fire or communication failure.
B
B
Earth leakage breaker
C
wiring circuit breaker or
isolating switch
C
C
B
1
2
S1
S2
S3
S1
S2
S3
L
N
Indoor/outdoor
unit connection
cable
Indoor
unit
Unit
power
supply
Outdoor
unit
Remote
controller
L
3
L
1
L
2
N
Unit
power
supply
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
3
L
1
L
2
N
1
2
S1
S2
S3
Indoor
unit
• Synchronized quadruple
• 1:1 System (Indoor: PEA-M200, 250)
