Electrical wiring
WARNING
DANGER OF BODILY INJURY OR DEATH
TURN OFF ELECTRIC POWER AT CIRCUIT BREAKER OR POWER SOURCE BEFORE MAKING ANY ELECTRIC
CONNECTIONS.
GROUND CONNECTIONS MUST BE COMPLETED BEFORE MAKING LINE VOLTAGE CONNECTIONS.
Selection of size of power supply and interconnecting wires
Precautions for electrical wiring
Electrical wiring work should be conducted only by authorized personnel.
Do not connect more than three wires to the terminal block. Always use round type crimped terminal lugs with insulated
grip on the ends of the wires.
Use copper conductor only.
Select wire sizes and circuit protection from table below. (This table shows 20 m length wires with less than 2% voltage drop.)
Wiring connection
For series 182
Make wiring to supply power to the indoor unit, so that the power for the outdoor unit is supplied by terminals.
Make wiring to supply power to the outdoor unit, so that the power for the indoor unit is supplied by terminals.
For series 242 282 362
For series 282 362 482
Power supply :1PH, 220-230V~, 50Hz
Outdoor unit
terminal block
Indoor unit
terminal block
Y/G
1 2 3
Y/G
1 2 3
L N
Outdoor unit
terminal block
Indoor unit
terminal block
Power supply:380-400V, 3N~, 50Hz
Y/G
R S T N 1 2 3
Y/G
1 2 3
Y/G
Item
Model
Phase
Switch breaker
(A)
Circuit breaker
Overcurrent protector
rated capacity (A)
Power source
wire size
(minimum)
(mm
2
)
Switch
breaker(A)
Earth leakage breaker
Leak
current(mA)
30
1
40
30
6.0
40
AD182
3
30
2.5
30
20
30
AD242
AD282, AD362
AD282, AD362
30
1
40
26
2.5
40
30
1
40
26
4.0
40
AD482
3
30
4.0
30
20
30
Installation Procedure
26
Outdoor unit
terminal block
Indoor unit
terminal block
Power supply:1PH, 220-230V~, 50Hz
1 2 3
1 2 3 N L
Y/G
Y/G
