Mitsubishi Electric Mr.Slim PLA-A-EA7 Serie Manual De Instalación página 8

Split-system heat pump
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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.
D
L1
A
B
C
L2
GR
S1
S2
S3
D
L1
A
B
C
L2
GR
S1
S2
S3
Note:
Some units cannot be used in a simultaneous twin system. Refer to the outdoor unit installation manual for details.
Indoor unit model
Minimum circuit ampacity
Maximum ration of overcurrent protective device
Indoor unit-Outdoor unit
Indoor unit earth
Remote controller-Indoor unit
Indoor unit-Outdoor unit S1-S2
Indoor unit-Outdoor unit S2-S3
Wired remote controller-Indoor unit
*1. <For 35-140 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
2
) used and S3 separated, Max. 80 m, 263 ft
Max. 18 m, 59 ft
2
If AWG13 (2.5 mm
) used, Max. 30 m, 99 ft
If AWG11 (4 mm
2
) used and S3 separated, Max. 50 m, 165 ft
If AWG9 (6 mm
2
) used and S3 separated, Max. 80 m, 263 ft
*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.)
2.
7.
power source wiring.
Warning:
1:1 System
I
G
H
S1
S2
CN105
RED
S3
1
F
2
E
Simultaneous twin system
G
G
S1
S1
S2
S2
S3
S3
1
2
F
E
E
2
1
PLA-A12EA7
PLA-A18EA7
1 A
*1
*2
*3
*3
*3
A Outdoor unit power supply
B Earth leakage breaker
C Wiring circuit breaker or isolating switch
D Outdoor unit
E Indoor earth
F Wired remote controller
G Indoor controller board
H Radio frequency interface for RF thermostat
I
Indoor unit
Only for wired remote controller
A Outdoor unit power supply
B Earth leakage breaker
C Wiring circuit breaker or isolating switch
D Outdoor unit
E Indoor earth
F Wired remote controller
G Indoor unit
PLA-A24EA7
PLA-A30EA7
1 A
1 A
15 A
3 × AWG14 (polar)
1 × Min. AWG14
2 × AWG22 (Non-polar, unshielded)
PLA-A36EA7
PLA-A42EA7
1 A
2 A
2 A

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