Mitsubishi Electric PUZ-HA NKA1 Serie Manuel D'installation page 10

6. Electrical work
6.2. Field electrical wiring
Outdoor unit model
Outdoor unit power supply
Breaker size
Minimum circuit ampacity
Maximum rating of overcurrent protective device
Outdoor unit power supply
Outdoor unit power supply earth
Indoor unit-Outdoor unit
Indoor unit-Outdoor unit earth
Remote controller-Indoor unit
Outdoor unit L1-L2
Indoor unit-Outdoor unit S1-S2
Indoor unit-Outdoor unit S2-S3
Remote controller-Indoor unit
*1. Max. 45 m, 147 ft
If 2.5 mm used, Max. 50 m, 164 ft
2
If 2.5 mm 2 used and S3 separated, Max. 80 m, 262ft
*2. The 10 m, 30 ft wire is attached in the remote controller accessory. Max 1500 ft
*3. 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 insulataed by the transformer or other device.
*4. Please follow applicable federal, state, or local codes to prevent potential leakage/electric shock. Or install a ground fault interrupt for the prevention of leakage and electric shock.
IMPORTANT
If you use current leakage breaker, it should be 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.
Notes: 1. Wiring size must comply with the applicable local and national code.
2. Use copper supply wires.
3. Use wires rated 600 V or more for the power supply cables and the indoor/outdoor unit connecting cables.
4. Power supply cords, the Indoor-Outdoor connecting cable and the water heater-Outdoor connecting cable shall not be lighter than polychloroprene
sheathed flexible cord. (Design 60245 IEC 57)
5. Use an earth wire which is longer than the other cords so that it will not become disconnected when tension is applied.
6. The appliance shall be installed in accordance with national wiring regulations.
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.
Warning:
• Turn on the main power when the ambient temperature is -20°C, -4°F or higher.
• In below -20°C, -4°F condition, it needs at least 4hr standby to operate in order to warm the electrical parts.
Never splice the power cable or the indoor-outdoor connection cable, otherwise it may result in a smoke, a fire or communication failure.
en
9
HA30
Single, 208/230 V, 60 Hz
*4 35 A
33 A
55 A
*1
*1
*2
*3
*3
*3
*3
208/230V
Single phase
Isolator
S1
A-Control
S2
Outdoor Unit
S3
HA36
Single, 208/230 V, 60 Hz
35 A
33 A
55 A
2 × Min. AWG 8
1 × Min. AWG 10
3 × AWG 14 (polar)
1 × Min. AWG 14
2 × AWG 22 (Non-polar)
208/230 VAC
208/230 VAC
28 VDC
12 VDC
3 poles isolator
HA42
Single, 208/230 V, 60 Hz
40 A
39 A
65 A
2 × Min. AWG 8
1 × Min. AWG 10
S1
A-Control
S2
Indoor Unit
S3