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Mitsubishi Electric Mr.SLIM PCA-AKA4 Serie Manual De Instalación página 7

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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.
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. The 10 m, 30 ft wire is attached in the wired remote controller accessory. Max. 500 m, 1500 ft
*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 insulataed 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 600V or more for the power supply cables and the indoor unit/outdoor unit connecting cables.
4. Install an earth longer than other cables.
6.2. Remote controller (Optional parts)
6.2.1. For wired remote controller
1) 2 wired remote controllers setting
If 2 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.
1 System
1:1 System
L1
CN105
L2
(RED)
GR
S1
S1
S2
S2
S3
S3
1
2
PCA-A24,30
1A
*1
3 × AWG16 (polar)
1 × Min. AWG16
*2
2 × AWG22 (Non-polar, unshielded)
*3
AC 208/230 V
*3
DC24 V
*3
DC12 V
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
I Radio frequency interface for RF thermostat
PCA-A36, 42
2A
15A
7

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