Mitsubishi Electric Mr. Slim SUZ-M-VA Serie Manual De Instalación página 13

6. Electrical work
■
M60/71
Be sure to fix
the indoor/
outdoor unit
connecting wire
using this cord
clamp.
Fig. 6-5
6.2. Field electrical wiring
Outdoor unit model
Outdoor unit power supply
Outdoor unit input capacity Main switch (Breaker)
Outdoor unit power supply
Outdoor unit power supply earth
Indoor unit-Outdoor unit
Indoor unit-Outdoor unit earth
Outdoor unit L-N
Indoor unit-Outdoor unit S1-S2
Indoor unit-Outdoor unit S2-S3
*1. A breaker with at least 3 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. The figures are NOT always against the ground.
S3 terminal has 24 VDC against S2 terminal. However between S3 and S1, these terminals are NOT electrically insulated by the transformer or other device.
*3. In case of PEAD-M35JA series combination.
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.
4. Use self-extinguishing distribution cables for power supply wiring.
5. Properly route wiring so as not to contact the sheet metal edge or a screw tip.
Warning:
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-poles type.
Never splice the power cable or the indoor-outdoor connection cable, otherwise it may result in a smoke, a fire or communication failure.
Be sure to connect the indoor-outdoor connecting cables directly to the units (no intermediate connections).
Intermediate connections can lead to communication error if water enters the cables and causes insufficient insulation to ground or a poor electrical contact at the inter-
mediate connection point.
A
B
Loosen terminal screw
A
Terminal block
B
Lead wire
C
Service panel
Remove the
2 fixing screws to
open the service
panel.
~/N (single), 50 Hz, 230 V
*1
3 × 1.5 (Polar)
*2
*2
*2 12 VDC – 24 VDC
230 V
Single phase
Isolator
S1
Outdoor Unit
S2
S3
C
M25/35
~/N (single), 50 Hz, 230 V
10 A
2 × Min. 1.5
1 × Min. 1.5
3 × 1.5 (Polar)
1 × Min. 1.5
230 VAC
230 VAC
12 VDC – 24 VDC
3 poles isolator
M35 *3
~/N (single), 50 Hz, 230 V
16 A
2 × Min. 2.0
1 × Min. 2.0
3 × 1.5 (Polar)
1 × Min. 1.5
230 VAC
230 VAC
12 VDC – 24 VDC
S1
Indoor Unit
S2
S3
en
M50/60/71
20 A
2 × Min. 2.5
1 × Min. 2.5
1 × Min. 1.5
230 VAC
230 VAC
11