Mitsubishi Electric Mr.SLIM PLA-ABA Serie Manual De Instalación página 7

6. Electrical work
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.
A B C
* Affix label A that is included with the manuals near each wiring diagram for the indoor and outdoor units.
D
L1
A B C
L2
GR
S1
S2
S3
* Affix label A that is included with the manuals near each wiring diagram for the indoor and outdoor units.
Indoor unit model
Minimum circuit ampacity
Maximum rating of overcurrent protective device
Indoor unit-Outdoor unit
Indoor unit earth
Remote contoroller-Indoor unit
Indoor unit-Outdoor unit S1-S2
Indoor unit-Outdoor unit S2-S3
Remote controller-Indoor unit
*1. Max. 50 m, 165 ft
*2. The 10m, 30 ft wire is attached in the remote controller accessory. Max. 500 m, 1500ft
*3. The figures 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.
Notes: 1. Wiring size must comply with the applicable local and national code.
. Use copper supply wires.
3. Use wires rated 300V or more for the power supply cables and the indoor unit/outdoor unit connecting cables.
4. Install an earth longer than other cables.
Fig. 6-1
1 System
D G
L1
L2
GR
S1 S1
S2 S2
S3 S3
1
F
2
E
Simultaneous twin system
G G
S1 S1
S2 S2
S3 S3
1 2
E F E
2 1
PLA-A12, 18, 24, 30
*1 3 × AWG16 (polar)
1 × Min. AWG16
*2 2 × AWG22 (Non-polar)
*3 AC 208/230 V
*3
*3
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, 2 to 4 inch)
Entry for control cable
Entry for power
Clamp
Electrical box cover
Service panel for electrical wiring
electrical box cover
Temporary hook for
Indoor / Outdoor unit connecting terminals
Remote controller connector
Secure with the clamp
Earth terminal
1:1 System
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
PLA-A36, 42
1A 2A
15A 15A
3 × AWG16 (polar)
1 × Min. AWG16
2 × AWG22 (Non-polar)
AC 208/230 V
DC24 V DC24 V
DC12 V DC12 V
7