8
en
Indoor unit specifications
Indoor power supply terminal kit (option)
Required
Indoor unit electrical box connector con-
nection change
Required
Label affixed near each wiring diagram for
the indoor and outdoor units
Required
Outdoor unit DIP switch settings (when us-
ing separate indoor unit/outdoor unit power
supplies only)
6.2. Remote controller (Fig. 6-2)
For wired remote controller
1) Two remote controller setting
If two 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.
6. Electrical work
*1. A breaker with at least 3 mm contact separation in each pole shall be provided. Use non-fuse breaker (NF) or earth leakage breaker (NV).
*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.
5. Installation must be comply with the electrical wiring rule.
If the indoor and outdoor units have separate power supplies, refer to the table at the
below. If the optional wiring replacement 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.
ON
OFF 1 2
(SW8)
3
* There are three types of labels (labels A, B, and C). Affix the appropriate labels to
the units according to the wiring method.
Indoor unit model
PCA
Indoor unit power supply
~/N (single), 50 Hz, 230 V
Indoor unit input capacity
Main switch (Breaker)
*1
16 A
Indoor unit power supply
2
×
Min. 1.5
Indoor unit power supply earth
1
×
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)
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
Circuit
rating
Wiring
Wire No.
×
size
(mm
2
)
Never splice the power cable or the indoor-outdoor connection cable, otherwise it may result in a smoke, a fire or communication failure.
Warning:
S1
S2
S3
L
N
CND
S1
S2
S3
L
N
CND
Option
Option
Indoor unit power supplied from outdoor unit
(when shipped from factory)
Separate indoor unit/outdoor unit power supplies
Connectors (connections when shipped
from the factory are for indoor unit power
supplied from outdoor unit)
If the indoor and
outdoor units have
separate power
supplies, change the
connections of the
connectors as shown
in the following
figure.
Connectors
Indoor unit
control board
Indoor unit
control board
ORANGE
CND
ORANGE
CND
BLUE
BLUE
YELLOW
YELLOW
BLUE
YELLOW
BLUE
YELLOW
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