Filter
Top Products
32
Electric 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.
(1) Selection of size of power supply and interconnecting wires.
Precautions for Electric wiring
Electric 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.)
(2) Wiring connection
Item
Phase
Switch breaker
(A)
Circuit breaker
Overcurrent protector
rated capacity (A)
Power source
wire size
(minimum)
Switch
breaker
Earth leakage breaker
Leak
current
Installation Manual For Indoor Unit
30mA
1
30 20 2.5mm
2
30
HDU-18HF03
30mA
1
40 36 4.0mm
2
40
HDU-28HF03
HDU-18HF03
INDOOR UNIT
TERMINAL BLOCK
1(L) 2(N) 3 4
Y/G
1 2 3 4 5 N L
POWER SUPPLY:
1PH,220-230V~,50Hz
OUTDOOR UNIT
TERMINAL BLOCK
HDU-28HF03
L N
Y/G
POWER SUPPLY:
1PH,220-230V~,50Hz
1 2 3 4 5
Y/G
L N 3 4 5
Y/G
OUTDOOR UNIT
TERMINAL BLOCK
INDOOR UNIT
TERMINAL BLOCK
HDU-18CF03
HDU-28CF03
HDU-18CF03
INDOOR UNIT
TERMINAL BLOCK
1(L) 2(N) 3 4
Y/G
1 2 3 4 5 N L
POWER SUPPLY:
1PH,220-230V~,50Hz
OUTDOOR UNIT
TERMINAL BLOCK
HDU-28CF03
L N
Y/G
POWER SUPPLY:
1PH,220-230V~,50Hz
Y/G
L N 3
Y/G
OUTDOOR UNIT
TERMINAL BLOCK
INDOOR UNIT
TERMINAL BLOCK
1 2 3