Mitsubishi Electric PCA-A KA Serie Manual De Instalación página 8

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.
B
A
* Affix label A that is included with the manuals near each wiring diagram for the indoor and outdoor units.
B
A
* Affix label A that is included with the manuals near each wiring diagram for the indoor and outdoor units.
Applied earth type depends on outdoor unit.
Please refer to connected outdoor unit Installation Manual.
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. Max. 50 m, 165 ft
*2. Max. 500 m, 1640 ft (For two wired remote controllers: Max. 200 m, 656 ft)
*3. The figures are NOT always against the ground.
S3 terminal has 24 V DC/28V 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 flexible cord. (Design 60245 IEC 57)
3. Use copper supply wires.
4. Use UL wires rated 300V or more for the power supply cables and the indoor unit/outdoor unit connecting cables.
5. Install an earth longer than other cables.
6. Indoor and outdoor connecting wires have polarities. Make sure to match the terminal number (S1, S2, S3) for correct wirings.
7. Wiring for remote controller cable shall be apart (5 cm, 2 inch or more) from power source wiring so that it is not influenced by electric noise from
power source wiring.
8. This appliance incorporates an earth connection for functional purpose only.
Warning:
Never splice the power cable or the indoor-outdoor connection cable, otherwise it may result in a smoke, a fire or communication failure.
en
6.2. Remote controller (Optional parts)
6.2.1. For wired remote controller
1) Two wired remote controllers setting
If two wired remote controllers are connected, set one to "Main" and the other to "Sub".
For setting procedures, refer to "Function selection of remote controller" in the operation manual for the indoor unit.
Note:
When connecting two remote controllers, be sure to use the same model of remote controller.
7
C F
L1
CN105
L2
(RED)
GR
D
S1 S1
S2 S2
S3 S3 H
1
E
G 2
D
L1
C
L2
GR
S1
S2
S3
E
F
*1
*2
*3
*3
*3
1:1 System
A Outdoor unit power supply
B Wiring circuit breaker or isolating switch
C Outdoor unit
D Indoor unit/outdoor unit connecting cords
E Wired remote controller (Optional parts)
F Indoor unit
G Indoor unit earth
H Indoor controller board
G
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
S1
F Remote controller
S2
S3 G Indoor unit
1
2
PCA-A24, 30KA8
1A
15A
3 × AWG14 (polar)
1 × Min. AWG14
2 × AWG22 (Non-polar, unshielded)
208/230 V AC
24 V DC/28 V DC
12 V DC
PCA-A36, 42KA8
2A