Mitsubishi Electric PLA-RP-BA Series Installation Manual page 8

6. Electrical work
6.1.2. Separate indoor unit/outdoor unit power supplies (For PUHZ application only)
The following connection patterns are available.
The outdoor unit power supply patterns vary on models.
* The indoor power supply terminal kit is required.
D
L
B C
A
N
S1
S2
S3
* Affi x label B that is included with the manuals near each wiring diagram for the indoor and outdoor units.
* The indoor power supply terminal kits are required.
D
L
A B C
N
S1
S2
S3
* Affi x label B that is included with the manuals near each wiring diagram for the indoor and outdoor units.
If the indoor and outdoor units have separate power supplies, refer to the table
below. If the indoor power supply terminal kit is used, change the indoor unit elec-
trical box wiring refering to the fi gure in the right and the DIP switch settings of the
outdoor unit control board.
Indoor power supply terminal kit (option)
Indoor unit electrical box connector
connection change
Label affi xed near each wiring diagram
for the indoor and outdoor units
Outdoor unit DIP switch settings (when
using separate indoor unit/outdoor unit
power supplies only)
* There are 3 types of labels (labels A, B and C). Affi x the appropriate labels to the
units according to the wiring method.
Indoor unit model
Indoor unit power supply
Indoor unit input capacity
Main switch (Breaker)
Indoor unit power supply & earth
Indoor unit-Outdoor unit
Indoor unit-Outdoor unit earth
Remote controller-Indoor unit
Indoor unit L-N
Indoor unit-Outdoor unit S1-S2
Indoor unit-Outdoor unit S2-S3
Remote controller-Indoor unit
*1. A breaker with at least 3.0 mm contact separation in each pole shall be provided. Use earth leakage breaker (NV).
The breaker shall be provided to ensure disconnection of all active phase conductors of the supply.
*2. Max. 120 m
*3. The 10 m wire is attached in the remote controller accessory. Max. 500 m
*4. The fi gures are NOT always against the ground.
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 fl exible cord.
(Design 60245 IEC 57)
3. Install an earth longer than other cables.
8
G
L
J B C H
N
S1
S2
S3
E
1
F
2
Simultaneous twin/triple/quadruple system
H H
G G G
L L L
J B C
N N N
S1 S1 S1
K
S2 S2 S2
S3 S3 S3
E
1 1 1
F
2 2 2
Indoor unit specifi cations
Required
Required
Required
ON 3
(SW8)
OFF 1 2
Set the SW8-3 to ON.
*1
*2
*3
*4
*4
*4
*4
1:1 System
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 cables
F Remote controller
G Indoor unit
H Option
J Indoor unit power supply
A Outdoor unit power supply
H B Earth leakage breaker
H
C Wiring circuit breaker or isolating switch
G
D Outdoor unit
L
E Indoor unit/outdoor unit connecting cables
N
F Remote controller
G Indoor unit
S1
K K
S2
H Option
S3
J Indoor unit power supply
1
K Indoor unit earth
2
Connectors (connections of initial setting
Option
are for indoor unit power supplied from
outdoor unit)
L
N
S1
S2
S3
Indoor unit power supplied from outdoor unit
(initial setting)
PLA
~/N (single), 50 Hz, 230 V
16 A
3 × Min. 1.5
2 × Min. 0.3
–
2 × 0.3 (Non-polar)
AC 230 V
–
DC24 V
DC12 V
If the indoor and
outdoor units have
separate power
supplies, change the
connections of the
connectors as shown
in the following
fi gure.
BLACK
CN01
Indoor unit
Option
control board
L
N
S1
S2
S3
Separate indoor unit/outdoor unit power sup-
plies
Connectors
BLACK
CN01
Indoor unit
control board