Installation Procedure

Refrigerant piping

6. Piping method: to use wacuum pump( e.g. AU182AFERA)

1 .Detach the service portis cap of 3-way valve, the valve rod's cap for 2-way valve and 3-way valves, connect the service port into the projection of charge hose (low) for gaugemanifold. Then connect the projection of charge hose (center) for gaugemanifold into vacuum pump.

2 .Open the handle at low in gaugemanifold, operate vacuum pump. If the scale-moves of gause (low) reach vacuum condition in a moment, check 1 again.

3 .Vacuumize for over 15min. And check the level gauge which should read -0.1MPa (-76 cm Hg) at low pressure side. After the completion of vacuumizing, close the handle 'Lo' in the vacuum pump. Check the condition of the scale and hold it for 1-2min. If the scale-moves back in spite of tightening, make flaring work again, then return to the beginning of 3 .

4 .Open the valve rod for the 2-way valve to and an angle of anticlockwise 90 degree. After 6 seconds, close the 2- way valve and make the inspection of gas leakge.

5 .No gas leakage?

In case of gas leakage, tighten

 

parts of pipe connection. If

 

leakage stops, then proceed 6

 

steps.

6 .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 ports cap,

Liquid stop valve

 

Gas stop valve

2 way valve

 

3 way valve

Gauge maifold(R410A)

 

 

Vacuum pump(R410A)

Open

Close

2 way valve

3 way valve 900

Service port

900 for 6 sec.

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

2 way valve

 

2 way valve

 

 

 

6

3 way valve

3 way valve

 

6

Valve rod cap

 

Valve rod cap

 

 

 

 

Service port cap

the valve rodis cap for 2-way valve and 3-way's a little more than the point where the torque increases suddenly.

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

7. Charging amount of refrigerant

When the total length (L) of the two indoor units' connecting pipe is less than 5m, it is unnecessary to charge additional refrigerant.

If the connecting pipe (L) exceeds 5m, it shall charge Mg additional refrigerant per meter. That is: Refrigerant charging amount = (L-5) x M (g)

For AU122AEERA, AU182AFERA, M=30

For AU242AGERA, AU282AHERA,AU362AHERA, AU36NAHERA,AU422AIERA, AU42NAIERA.AU522AIERA,AU52NAIERA,M=50

Only in COOLING operation can charge the additional refrigerant.

When charging, the refrigerant shall be charged from the charging nozzle of low pressure vavle. Be carefull when charging refrigerant, do not let the air mix into the system,and must charge the additional refrigerant in liquid condition.

19

Page 20 Page 22
Page 21
Image 21
Haier AU36NAHERA, AU362AHERA, AU242AGERA, AU282AHERA Piping method to use wacuum pump e.g. AU182AFERA
Page 20 Page 22

AU282AHERA, AU242AGERA, AU362AHERA, AU36NAHERA, AU182AFERA specifications

Haier, a leading brand in home appliances and air conditioning solutions, offers a range of innovative air conditioners designed to enhance comfort and energy efficiency. Among their notable models are the AU36NAHERA, AU182AFERA, AU242AGERA, AU362AHERA, and AU282AHERA, each tailored to meet diverse cooling needs.

The AU36NAHERA is a high-capacity air conditioning unit, perfect for larger spaces. Its powerful compressor ensures rapid cooling, while the inverter technology optimizes energy consumption by adjusting the cooling output according to the ambient temperature. This model also features a 3D airflow system, which maintains consistent temperature distribution throughout the room, enhancing overall comfort.

Moving to the AU182AFERA, this air conditioner is ideal for medium-sized areas. It utilizes advanced filtration technology, including a high-performance HEPA filter that captures airborne dust, allergens, and pollutants. This feature not only provides cleaner air but also promotes a healthier environment, making it a perfect choice for families or individuals with allergies.

The AU242AGERA stands out with its sleek design and versatile functionality. This model is equipped with a smart control feature that allows users to manage settings through a mobile app. Additionally, its eco-friendly refrigerant contributes to lower carbon emissions, showcasing Haier's commitment to sustainability without sacrificing performance.

The AU362AHERA is another impressive unit that combines efficiency and performance. Its turbo cooling feature ensures quick temperature drops during hot days, while the quiet operation mode guarantees a peaceful environment. This model is equipped with a self-cleaning function that removes dust and germs from the evaporator, further promoting air quality.

Lastly, the AU282AHERA offers a balance of compact size and powerful cooling capabilities. Its energy-efficient design makes it suitable for smaller spaces without compromising performance. Equipped with a user-friendly remote control, this model provides convenience in adjusting settings from anywhere in the room.

Together, these models exemplify Haier's dedication to integrating advanced technology, energy efficiency, and user convenience, making them excellent choices for anyone looking to enhance their indoor climate while remaining environmentally conscious.
Top Page Image Contents