Electrical Work - Mitsubishi Electric PUHZ-SW HA Series Installation Manual

7. Electrical work

7.1. Outdoor unit (Fig. 7-1, Fig. 7-2)
Remove the service panel.
Wire the cables referring to the Fig. 7-1 and the Fig. 7-2.
Fig. 7-1
7.2. 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).
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. (SW40-120)
Max. 45 m
If 2.5 mm 2 used, Max. 50 m
2
If 2.5 mm used and S3 separated, Max. 80 m
(SW160, 200)
Max. 80 m Total Max. including all indoor/indoor connection is 80 m.
• Use one cable for S1 and S2 and another for S3 as shown in the picture.
*3. The 10 m wire is attached in the remote controller accessory.
*4. The  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 insulated by the transformer or other device.
Indoor unit
(Interface unit/
Flow temp. controller)
Outdoor unit
Remote controller
Main switch (Earth leakage breaker)
Earth
SW40, 50V SW75V
~/N (single), ~/N (single),
50 Hz, 230 V 50 Hz, 230 V
*1 16 A 25 A
3 × Min. 1.5 3 × Min. 2.5
*2 3 × 1.5 (Polar) 3 × 1.5 (Polar)
*2 1 × Min. 1.5 1 × Min. 1.5
*3 2 × 0.3 (Non-polar) 2 × 0.3 (Non-polar)
*4 AC 230 V AC 230 V
*4 AC 230 V AC 230 V
*4 DC 24 V DC 24 V
*4 DC 12 V DC 12 V
SW40, 50V
SW75-200
Fig. 7-2
Terminal block
Indoor/Outdoor connection terminal block (S1, S2, S3)
Service panel
Clamp
* Clamp the cables so that they do not contact the center of the service panel or the gas valve.
Earth terminal
Wire the cables so that they do not contact the center of the service panel.
Note :
If the protective sheet for the electrical box is removed during servicing, be sure to
reinstall it.
Caution:
Be sure to install N-Line. Without N-Line, it could cause damage to unit.
SW100V SW120V
~/N (single), ~/N (single),
50 Hz, 230 V 50 Hz, 230 V
32 A 40 A
3 × Min. 4 3 × Min. 6
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
SW40, 50V
SW75-120V
L N S1 S2 S3
SW100-200Y
SW100, 120Y SW160, 200Y
3N~ (3 ph 4-wires), 3N~ (3 ph 4-wires),
50 Hz, 400 V 50 Hz, 400 V
16 A 32 A
5 × Min. 1.5 5 × Min. 1.5
Cable length 50m:
3×4 (Polar)/
3 × 1.5 (Polar)
Cable length 80m:
3×6 (Polar)
1 × Min. 1.5 1 × Min. 2.5
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