Haier HDU-28H03/H Electric wiring, Wire size Switch Leak Rated capacity a Minimum, 5mm 30mA

Page 26

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

 

 

 

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Contents Please read this manual carefully before using ManualTable of Contents Disposal of the old air conditioner Safety Precations It could cause such problems as water leakageSafety Precautions Make sure to use a fuse of proper electric ratingMachine is adaptive in following situation Safety PrecautionApplicable ambient temperature range Air outlet Duct Drainpipe Air inlet Parts and FunctionsHDU-24H03/HHDU-42H03/H HDU-28H03/H Buttons and display of the wire controller Remote control Clock setOperation Fan speed selection Select temp. settingRecommendations Press Time Set Clock correctly before starting Timer operationSelect your desired Timer mode on or OFF Press Time button Follow the same procedures in Time setting for Timer onSelect Offon Comfortable Sleep Cooling, dehumidifying modeHeating mode Operation Cooling or heating is not sufficient MalfunctionUnit fails to start Cooling is not sufficientDuring this time air conditioner operates in fan Followings are not malfunctionStopped. Because the protecting circuit is activated Outdoor unit during heating During defrosting operationCare and Maintenance Points to observeWarming Operation Electric work Is the Unit Installed CorrectlyInstallation place Installation Manual for Wire Controller Hint Indoor unit wiringReplace the upper part of wire controller Installation of outdoor unit AccessoriesSelection of the place of installation InstallationPiping size Refrigerant pipingOutline piping Model To use vacuum pump5mm 30mA Electric wiringWire size Switch Leak Rated capacity a Minimum 0mm 30mATest run Installation Manual for Indoor Unit Safety precautionsChoose installation place Preparation before installation Installation of indoor unit Drain PipingInstallation of air suction and discharging duct Chosen chart of simple duct Shape Square duct Dimension Air volumeExamples of improper installation Air discharging fan Improper exampleOperation method of fan controller Example of the method of choosing capacity numberRefrigerant pipe

HDU-28H03/H, HDU-42H03/H, HDU-24H03/H specifications

Haier has established itself as a leading name in the HVAC sector, and their HDU series, including models HDU-28H03/H, HDU-42H03/H, and HDU-24H03/H, exemplifies the brand's commitment to quality and efficiency. These air conditioning units are ideal for both residential and commercial use, designed to provide optimal comfort without compromising on energy efficiency.

One of the standout features of the HDU series is its advanced inverter technology. This allows the units to adjust their cooling and heating output based on the current demand, ensuring that energy is used efficiently. As a result, users can expect reduced energy bills while enjoying a consistently comfortable indoor climate. The inverter system minimizes temperature fluctuations by maintaining a steady output, enhancing overall comfort.

Another notable aspect of the HDU models is their high energy efficiency ratings, often reaching levels that exceed industry standards. This is largely due to the use of R32 refrigerant, which has a lower global warming potential compared to traditional refrigerants. The incorporation of R32 not only makes these units more environmentally friendly but also helps to improve efficiency, providing effective cooling and heating performance even in extreme weather conditions.

Additionally, the HDU units boast a wide operating temperature range. They are designed to work seamlessly in a variety of climates, maintaining performance in temperatures as low as -15°C for heating and up to 50°C for cooling. This adaptability makes them a versatile choice for different geographic locations.

Quiet operation is another impressive feature of the HDU series. The indoor units are engineered to operate at whisper-quiet levels, making them ideal for bedrooms, offices, or any space where noise could be a concern. This allows users to enjoy a peaceful environment while maintaining their comfort.

The user-friendly interface and smart features of the HDU models further enhance their appeal. Equipped with modern remote controls and optional Wi-Fi connectivity, users can easily manage their air conditioning settings from anywhere, providing convenience and flexibility.

In summary, the Haier HDU-28H03/H, HDU-42H03/H, and HDU-24H03/H models combine advanced inverter technology, high energy efficiency, a wide operating temperature range, and quiet operation to deliver outstanding performance. Their smart features and eco-friendly refrigerant make them a reliable choice for those seeking comfort and efficiency in their HVAC systems.
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