Mitsubishi Electric Mr.SLIM PKA-A LA Série Manuel D'installation page 11

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.
* Affix a label A that is included with the manuals near each wiring diagram for the indoor and outdoor units.
* Affix a 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
Wired remote controller-Indoor unit
Indoor unit-Outdoor unit S1-S2
Indoor unit-Outdoor unit S2-S3
Wired remote controller-Indoor unit
*1. <For 12-36 outdoor unit application>
Max. 45 m, 148 ft
If AWG13 (2.5 mm 2 ) used, Max. 50 m, 165 ft
If AWG13 (2.5 mm ) used and S3 separated, Max. 80 m, 263 ft
2
*2. Max. 500 m, 1640 ft
(When using 2 remote controllers, the maximum wiring length for the remote controller cables is 200 m, 656 ft.)
*3. The figures are NOT always against the ground.
S3 terminal has 24 V DC / 28 V DC against S2 terminal. However, between S3 and S1, these terminals are not electrically insulated by the transformer or other device.
*4. It depends on the outdoor unit.
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. Use copper supply wires.
4. Use wires rated 300 V or more for the power supply cords and the indoor unit/outdoor unit connecting cords.
5. Install an earth longer than other cords.
6. Indoor and outdoor connecting wires have polarities. Make sure to match the terminal number (S1, S2, S3) for correct wirings.
1
1:1 System
C
L1
B
A
L2
GR
D
S1
S2
S3
E
G
Simultaneous twin system
C
L1
B
A
L2
GR
D
S1
S2
S3
E
G
PKA-A·LA Series
1 A
15 A
*1 3 × AWG14 (Polar)
1 × Min. AWG14
*2 2 × Min. AWG22 (Non-polar, unshielded)
*3 208/230 V AC
*3 *4 24 V DC / 28 V DC
*3 12 V DC
A Outdoor unit power supply
F
B Wiring circuit breaker or isolating switch
C Outdoor unit
CN105
D Indoor unit/outdoor unit connecting cords
(RED)
E Wired remote controller
I
S1
F Indoor unit
S2
H
S3
G Indoor unit earth
H Indoor controller board
1
I Radio frequency interface for RF thermostat
2
Only for 1:1 System
■
Only for wired remote controller.
F F
A Outdoor unit power supply
B Wiring circuit breaker or isolating switch
C Outdoor unit
S1 S1
D Indoor unit/outdoor unit connecting cords
S2 S2
E Wired remote controller
S3 S3
F Indoor unit
1 1 G Indoor unit earth
2 2
G
en
10