Wiring Specifications; Field Electrical Wiring; Synchronized Twin And Triple System Electrical Wiring; Refer To - Mitsubishi Electric PUHZ-P100VHA2 Service Manual

9

WIRING SPECIFICATIONS

9-1. FIELD ELECTRICAL WIRING (power wiring specifications)
Outdoor unit model
Outdoor unit power supply
Outdoor unit input capacity
Main switch (Breaker)
Outdoor unit power supply
Indoor unit-Outdoor unit
Indoor unit-Outdoor unit earth
Remote controller-Indoor unit
Outdoor unit L-N (single)
Outdoor unit L1-N, L2-N, L3-N (3 phase)
Indoor unit-Outdoor unit S1-S2
Indoor unit-Outdoor unit S2-S3
Remote controller-Indoor unit
*1. A breaker with at least 3 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. Refer to 9-3.

*3. The 10 m wire is attached in the remote controller accessory.
*4. The figures are NOT always necessarily the voltage to ground.
S3 terminal has DC 24 V against S2 terminal. However between S3 and S1, these terminals are NOT electrically insulated by the transformer or other device.
Caution: Be sure to install N-Line. Without N-Line, it could cause damage to the unit.
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 60245 IEC 57)
3. Install an earth longer than other cables.
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-pole type.
1:1 system
Outdoor
unit
Unit
L
power
N
supply
Indoor/outdoor
unit connection
cable
S1
Earth leakage breaker
S2
wiring circuit breaker or
S3
isolating switch
OCH415G
P100, 125V
~/N (single), 50 Hz,
230 V
*1
32 A
3 Min. 4
*2
3 1.5 (Polar)
*2
1 Min. 1.5
*3
2 0.3 (Non-polar)
*4
AC 230 V
*4
AC 230 V
*4 DC 24 V
*4
DC 12 V
Power supply
Isolator
S1
A-Control
S2
Outdoor Unit
S3
Indoor
unit
1
Remote
controller
2
S1
S2
S3
P140V P100,125,140Y
~/N (single), 50 Hz, 3N~ (3ph,4-wires),
230 V 50Hz, 400 V
40 A 16 A
3 Min. 6 5 Min. 1.5
3 1.5 (Polar) 3 1.5 (Polar)
1 Min. 1.5 1 Min. 1.5
2 0.3 (Non-polar) 2 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
3 poles isolator

Synchronized twin and triple system Electrical wiring

• Synchronized twin
Outdoor
unit
L
Unit
power
N
supply
S1
Earth leakage breaker
S2
wiring circuit breaker or
S3
isolating switch
• Synchronized triple
Outdoor
unit
Unit
L
power
N
supply
S1
Earth leakage breaker
S2
wiring circuit breaker or
S3
isolating switch
30
S1
A-Control
S2
Indoor Unit
S3
Indoor
unit
1
Remote
controller
2
Indoor/outdoor
unit connection
cable
S1
S2
S3
Indoor
unit
1
Remote
controller
2
Indoor/outdoor
connection cable
S1
S2
S3
Indoor
unit
1
2
S1
S2
S3
Indoor Indoor
unit unit
1
1
2 2
S1 S1
S2 S2
S3 S3