Electrical Work - Mitsubishi Electric PUHZ-HRP-HA2 Installation Manual

6. Electrical work

6.1. Outdoor unit (Fig. 6-1, Fig. 6-2)
1 Remove the service panel.
2 Wire the cables referring to the Fig. 6-1 and the Fig. 6-2.
L
D
N
For Heater
S1
S2
S3
B
L N S1 S2 S3
D
D
For Power For Power
B
E
6.2. Field electrical wiring
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 3.0 mm contact separation in each poles shall be provided. Use earth leakage breaker (NV).
*2. Max. 45 m
2
If 2.5 mm 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 fi gures 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 fl exible cord. (Design 60245 IEC 57)
3. Use an earth wire which is longer than the other cords so that it will not become disconnected when tension is applied.
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.
· Turn on the main power when the ambient temperature is - 20°C or higher.
· In below - 20°C condition, it needs at least 4hr stand by to operate in order to warm the electrical parts.
* With Heater
model only
A
A Indoor unit
B Outdoor unit
C
C Remote controller
D Main switch (Breaker)
E Earth
For Heater For Heater For Heater
D D
A A
C
E E
Fig. 6-1
~/N (single), 50 Hz, 230 V
*1
*2
*2
*3 2 × 0.3 (Non-polar)
*4
*4
*4
*4
Power supply
Isolator
S1
A-Control
S2
Outdoor Unit
S3
D
F Power supply termial block
A
G indoor/ outdoor connection terminal block(S1, S2, S3)
H Service panel
E
I Clamp
* Clamp the cables so that they do not contact the center of the service panel or the gas valve.
HRP71V
~/N (single), 50 Hz, 230 V
32 A
3 × Min. 4
3 × 1.5 (Polar)
1 × Min. 1.5
2 × 0.3 (Non-polar)
AC 230 V
AC 230 V
DC 24 V
DC 12 V
3 poles isolator
HRP71, 100V
L N
HRP100, 125Y
L1 L2 L3 N
Fig. 6-2
HRP100V
3N~ (3 phase), 50 Hz, 400 V
40A
3 × Min. 6
3 × 1.5 (Polar)
1 × Min. 1.5
2 × 0.3 (Non-polar)
AC 230 V
AC 230 V
DC 24 V
DC 12 V
S1
A-Control
S2
Indoor Unit
S3
S1 S2 S3
S1 S2 S3
HRP100,125Y
16 A
5 × Min. 1.5
3 × 1.5 (Polar)
1 × Min. 1.5
AC 230 V
AC 230 V
DC 24 V
DC 12 V
9