Haier HDU-28H03/H, HDU-24H03/H, HDU-42H03/H Electric wiring, Installation Manual For Outdoor Unit

INSTALLATION MANUAL FOR OUTDOOR UNIT

4

Open the valve rod for the 2-way valve to and angle of anticlockwise 90 degree. After 6 seconds later, close the 2-way valve and male

the inspection of gas leakage.

2-way valve2-way valve

3-way valve

				3-way valve
	Open
	Service port		Open	Service port
90	90 4 90 for 6 sec.	90
			90	4 90 for 6 sec.

5	In case of gas leakage, tighten
No gas leakage?	parts of pipe connection. If
	leakage stops, then proceed 6
6	steps.

Detach the charge hose from the service port, open 2-way valve and 3-way. Turn the valve rod anticlockwise until hitting lightly.

7

To prevent the gas leakage, turn the service port's cap, the valve rod'd cap for 2-way valve and 3-way's a lottle more than the point where the torque increases suddenly.

8

After attaching the each caps, check the gas leakage around the caps.

If it does not stop gas leakage, discharge whole refrigerants from the serice port. After flaring work again and vacuumize, fill up prescribed refrigerant from the gas cylinder.

2-way valve	2-way valve
3-way valve	Liquid pipe 9.52mm
	3-way valve
6	Gas pipe 19.05mm
6	6
6
	2-way valve
	3-way valve
	7 Valve rod cap
7	Valve rod cap

7 Service port cap

CAUTION:

If the refrigerant of the air conditioner leaks, it is necessary to make all the refrigerant out, then charge the liquid refrigerant into air conditioner according to the amount marked on the name plate.

2-way valve

3-way valve

7 Valve rod cap

5. Electric wiring

7 Service port cap 7 Valve rod cap

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.)

Item		Circuit	breaker	Power source	Earth leakage breaker
Model	Phase	Switch breaker	Overcurrent protector	wire size	Switch	Leak
		(A)	rated capacity (A)	(minimum)	breaker	current
HDU-42H03/H	3	30	20	2.5mm2	30	30mA
HDU-24H03/H	1	40	26	4.0mm2	40	30mA
HDU-28H03/H
			25