9
Indoor power supply terminal kit (option)
Required
Indoor unit electrical box connector
connection change
Required
Label affixed near each wiring diagram
for the indoor and outdoor units
Required
Outdoor unit DIP switch settings (when
using separate indoor unit/outdoor unit
power supplies only)
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.
* Affix label B that is included with the manuals near each wiring diagram for the indoor and outdoor units.
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
* The indoor power supply terminal kits are required.
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 electrical box
wiring refering to the figure in the right and the DIP switch settings of the outdoor
unit control board.
* Affix label B that is included with the manuals near each wiring diagram for the indoor and outdoor units.
Note:
Some units cannot be used in a simultaneous twin/triple/quadruple system. Refer to the outdoor unit installation manual for details.
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
ON
OFF 1
2
(SW8)
3
*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. Max. 500 m
(When using 2 remote controllers, the maximum wiring length for the remote controller cables is 200 m.)
*4. The figures 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 flexible cord.
(Design 60245 IEC 57)
3. Install an earth longer than other cables.
4. Wiring for remote controller cable shall be apart (5 cm or more) from power source wiring so that it is not influenced by electric noise from power
source wiring.
* There are 3 types of labels (labels A, B and C). Affix the appropriate labels to the
units according to the wiring method.
Simultaneous twin/triple/quadruple system
1:1 System
Set the SW8-3 to ON.
Indoor unit model
PLA
Indoor unit power supply
~/N (single), 50 Hz, 230 V
Indoor unit input capacity
Main switch (Breaker)
*1
16 A
Wiring
Wire No. × size (mm
2
) Indoor unit power supply & earth
3 × Min. 1.5
Indoor unit-Outdoor unit
*2
2 × Min. 0.3
Indoor unit-Outdoor unit earth
–
Remote controller-Indoor unit
*3
2 × 0.3 (Non-polar)
Circuit
rating
Indoor unit L-N
*4
230 VAC
Indoor unit-Outdoor unit S1-S2
*4
–
Indoor unit-Outdoor unit S2-S3
*4
24 VDC
Remote controller-Indoor unit
*4
12 VDC
Never splice the power cable or the indoor-outdoor connection cable, otherwise it may result in a smoke, a fire or communication failure.
Warning:
3
3
2
2
1
1
4
4
<Replacing the indoor unit terminal block>
Install the optional Power supply terminal kit.
Refer to the installation manual that comes
with the optional Power supply terminal kit
for details.
1
Secure the terminal block with the screw.
2
Insert the tab terminal.
3
Connect connector CN01 (black) to the
indoor controller board.
4
Connect connector CN3C (blue) to the
indoor controller board.
1
Disconnect connector CN3C (blue) from
the indoor controller board.
2
Disconnect connector CN01 (black) from
the indoor controller board.
3
Disconnect the tab terminal.
4
Remove the screw from the terminal block.
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