Wiring Specifications - Mitsubishi Electric PU-P71VHA Service Manual

8

WIRING SPECIFICATIONS

8-1. FIELD ELECTRICAL WIRING (power wiring specifications)
Outdoor unit model
Outdoor unit Power supply
Outdoor unit input capacity
Main switch (Breaker)
Max. Permissive System Impedance (")
Outdoor unit power supply
Outdoor unit power supply earth
Indoor unit-Outdoor unit
Indoor unit-Outdoor unit earth
Remote controller-Indoor unit
Outdoor unit L-N
Outdoor unit L1-N, L2-N, L3-N
Indoor unit-Outdoor unit S1-S2
Indoor unit-Outdoor unit S2-S3
Remote controller-Indoor unit
*1. A breaker with at least 3.0 mm contact separation in each poles shall be provided. Use non-fuse breaker (NF) or earth leakage breaker (NV).
*2. Max. 45 m
If 2.5 mm 2 used, Max. 50 m
2
If 2.5 mm used and S3 separated, Max. 80 m
*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.
Caution:
Do not push the contactor button (52C) on the outdoor unit, otherwise the compressor may be damaged.
1:1 system
Outdoor
unit
Unit
L
power
B C
N
supply
Indoor/outdoor
unit connection
cable
S1
B Earth leakage breaker
S2
C wiring circuit breaker or
S3
isolating switch
P71V
~/N (single), 50 Hz, 230 V
*1 32 A
0.06
2 o Min. 4
1 o Min. 4
*2
*3
*4
*4
*4
*4
Power supply
Isolator
S1
A-Control
S2
Outdoor Unit
S3
Indoor
unit
1
Remote
controller
2
S1
S2
S3
P100V P71Y
16 A
0.23
4 o Min. 1.5
1 o Min. 1.5
3 o 1.5 (polar)
1 o Min. 1.5
2 o 0.3 (Non-polar)
AC 230 V
AC 230 V
DC 24 V
DC 12 V
3 poles isolator
Synchronized twin and triple system Electrical wiring
• Synchronized twin
Unit
power B C
supply
B Earth leakage breaker
C wiring circuit breaker or
isolating switch
• Synchronized triple
Unit
power
B C
supply
B Earth leakage breaker
C wiring circuit breaker or
isolating switch
18
P100Y P125Y
3N~(3phase), 50 Hz, 400 V
0.22 0.14
4 o Min. 2.5
1 o Min. 2.5
S1
A-Control
S2
Indoor Unit
S3
Outdoor Indoor
unit unit
L 1
Remote
controller
N 2
Indoor/outdoor
unit connection
cable
S1 S1
S2 S2
S3 S3
Outdoor Indoor
unit unit
L 1
Remote
controller
N 2
Indoor/outdoor
connection cable
S1 S1
S2 S2
S3 S3
P140Y
25 A
0.12
Indoor
unit
1
2
S1
S2
S3
Indoor Indoor
unit unit
1
1
2 2
S1 S1
S2 S2
S3 S3