Mitsubishi Electric Mr.Slim PCA-M-HA Series Installation Manual page 9

6. Electrical work
* Affix a label A that is included with the manuals near each wiring diagram for the indoor and outdoor units.
Indoor unit model
Indoor unit-Outdoor unit
Indoor unit-Outdoor unit earth
Remote controller-Indoor unit
Indoor unit-Outdoor unit S1-S2
Indoor unit-Outdoor unit S2-S3
Remote controller-Indoor unit
*1. <For 25-140 outdoor unit application>
Max. 45 m
If 2.5 mm used, Max. 50 m
2
If 2.5 mm used and S3 separated, Max. 80 m
2
<For 200/250 outdoor unit application>
Max. 18 m
If 2.5 mm used, Max. 30 m
2
If 4 mm used and S3 separated, Max. 50 m
2
If 6 mm used and S3 separated, Max. 80 m
2
*2. Max. 500 m
(When using 2 remote controllers, the maximum wiring length for the remote controller cables is 200 m.)
*3. 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.
Notes: 1. Wiring size must comply with the applicable local and national code.
2. Power supply cords and indoor unit/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. Indoor and outdoor connecting wires have polarities. Make sure to match the terminal number (S1, S2, S3) for correct wirings.
5. Wiring for remote controller cable shall be apart (5 cm or more) from power source wiring so that it is not influenced by electric noise from power
source wiring.
6. Installation must be comply with the electrical wiring rule.
6.1.2. Separate indoor unit/outdoor unit power supplies (For PUZ/PUHZ application only)
The following connection patterns are available.
The outdoor unit power supply patterns vary on models.
* The optional wiring replacement kit is required.
* Affix a label B that is included with the manuals near each wiring diagram for the indoor and outdoor units.
* The optional wiring replacement kits are required.
* Affix a label B that is included with the manuals near each wiring diagram for the indoor and outdoor units.
Simultaneous twin/triple/four system
D
L
B C
N
A
S1
S2
S3
E
F
*1
*1
*2
*3
*3
*3
1:1 System
D
L
B C B
N
A J
S1
S2
S3
E
Simultaneous twin/triple/four system
D
L
B
B C
N
A J
S1
S2
S3
E
G G G G
S1 S1 S1 S1
S2 S2 S2 S2
S3 S3 S3 S3
1 1 1 1
2 2 2 2
PCA
3 × 1.5 (polar)
1 × Min. 1.5
2 × 0.3 (Non-polar)
230 VAC
24 VDC
12 VDC
G
L
C
N
H
S1
S2
S3
1
F
2
G G G G
L L L L
C
N N N N
S1 S1 S1 S1
H
S2 S2 S2 S2
S3 S3 S3 S3
1 1 1 1
F
2 2 2 2
A Outdoor unit power supply
B Earth leakage breaker
C Wiring circuit breaker or isolating switch
D Outdoor unit
E Indoor unit/outdoor unit connecting cords
F Remote controller
G Indoor unit
A Outdoor unit power supply
B Earth leakage breaker
C Wiring circuit breaker or isolating switch
D Outdoor unit
E Indoor unit/outdoor unit connecting cords
F Remote controller
G Indoor unit
H Option
J Indoor unit power supply
A Outdoor unit power supply
B Earth leakage breaker
C Wiring circuit breaker or isolating switch
D Outdoor unit
E Indoor unit/outdoor unit connecting cords
F Remote controller
G Indoor unit
H Option
J Indoor unit power supply
en
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