Mitsubishi Electric PLA-RP125BA / PUH-P125YHAR [7/38] Electrical work

Mitsubishi Electric PLA-RP71BA / SUZ-KA71VA [7/38] Electrical work
7
6. Electrical work
6.1. Indoor unit (Fig. 6-1)
1. Remove the electrical wiring service panel.
2. Remove the electrical box cover.
3. Wire the power cable and control cable separately through the respective wiring
entries given in the diagram.
Do not allow slackening of the terminal screws
.
Leave excess cable so that the electrical box cover can be suspended below the
unit during servicing. (Approx. 50 to 100 mm)
A
Entry for control cable
B
Entry for power
C
Clamp
D
Electrical box cover
E
Service panel for electrical wiring
F
Temporary hook for electrical box cover
G
Indoor / Outdoor unit connecting terminals
H
Remote controller connector
I
Secure with the clamp
J
Earth terminal
6.1.1. Indoor unit power supplied from outdoor unit
The following connection patterns are available.
The outdoor unit power supply patterns vary on models.
1 System
S1
S2
L
N
1
2
S1
S2
S3
S3
AB C
D
E
F
G
S1
S2
L
N
1
2
S1
S2
S3
1
2
S1
S2
S3
S3
1
2
S1
S2
S3
1
2
S1
S2
S3
ABC
D
E
F
GGGG
H
H
H
* Af x label A that is included with the manuals near each wiring diagram for the indoor and outdoor units.
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 cables
F Remote controller
G Indoor unit
* Af x label A that is included with the manuals near each wiring diagram for the indoor and outdoor units.
*1. <For 35-140 outdoor unit application>
Max. 45 m
If 2.5 mm
2
used, Max. 50 m
If 2.5 mm
2
used and S3 separated, Max. 80 m
<For 200/250 outdoor unit application>
Max. 18 m
If 2.5 mm
2
used, Max. 30 m
If 4 mm
2
used and S3 separated, Max. 50 m
If 6 mm
2
used and S3 separated, Max. 80 m
*2. The 10 m wire is attached in the remote controller accessory. Max. 500 m
*3. The gures are NOT always against the ground.
S3 terminal has 24 V DC 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 exible cord. (Design 60245 IEC 57)
3. Install an earth longer than other cables.
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 cables
F Remote controller
G Indoor unit
H Indoor unit earth
Simultaneous twin/triple/quadruple system
1:1 System
Wiring
Wire No. × size
(
e
)
Circuit
rating
Indoor unit model PLA
Indoor unit-Outdoor unit *1 3 × 1.5 (polar)
Indoor unit-Outdoor unit earth *1 1 × Min. 1.5
Indoor unit earth 1 × Min. 1.5
Remote controller-Indoor unit *2 2 × 0.3 (Non-polar)
Indoor unit (Heater) L-N *3
Indoor unit-Outdoor unit S1-S2 *3 230 V AC
Indoor unit-Outdoor unit S2-S3 *3 24 V DC
Remote controller-Indoor unit *3 12 V DC
Never splice the power cable or the indoor-outdoor connection cable, otherwise it may result in a smoke, a re or communication failure.
Warning:
Fig. 6-1

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