Outdoor unit

5.Purging Method:To use vacuum pump

Liquid Side

 

6.35mm(1/4")

 

2-way valve

Gas Side 9.52mm(3/8") 12.7mm(1/2")

3-way valve

Detach the service port's cap of 3-way valve, the valve rod's cap for 2-way valve and 3-way's, 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.

Open the handle at low in gaugemanifold, operate

Tube(for R410A)

Gaugemanifold(for R410A)

Anti countercurrent joint

Vacuum pump(for R410A)

vacuum pump. If the scale-moves of gause (low) Open

reach vacuum condition in a moment, check again.

Vacuumize for over 15min. And check the level gauge which should read -0.1 MPa (-76 cm Hg) at low pressure side. After the completion of vacuumizing, close the handle 'Lo' in gaugemanifold and stop the

operation of the vacuum pump. Close 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, the return to the beginning of .

Open the valve rod for the 2-way valve to an angle of

 

 

 

 

Liquid Side

Gas Side

 

 

 

 

6.35mm(1/4")

9.52mm(3/8")

anticlockwise 90 degrees.

 

 

 

 

2-way valve

3-way valve

 

12.7mm(1/2")

After 6 seconds, close the 2-way valve and make

 

 

Service port

 

3-way valve

the inspection of gas leakage.

Open

2-way valve

90

o

for 6 sec.

 

 

 

 

90o

 

 

 

In case of gas leakage, tighten

No gas leakage? parts of pipe connection. If leakage stops, then proceed

steps.

Detach the charge hose from the service port, open

2-way valve and 3-way. Turn the valve rod anticlockwise until hitting lightly.

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

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

CAUTION:

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

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

3-way valve

2-way valve

2-way valve

3-way valve

 

Valve rod cap

Service port cap Valve rod cap

2.Please do not let other cooling medium, except specified one (R410A),

or air enter into the cooling circulation system. Otherwise, there will be

abnormal high pressure in the system to make it crack and lead to

personal injuries.

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Haier HSU-18HEA03/R2-I, HSU-09HEA03/R2-I, HSU-12HEA03/R2-I installation manual Purging MethodTo use vacuum pump
Page 7 Page 9

HSU-18HEA03/R2-I, HSU-12HEA03/R2-I, HSU-09HEA03/R2-I specifications

The Haier HSU series, which includes models HSU-12HEA03/R2-I, HSU-09HEA03/R2-I, and HSU-18HEA03/R2-I, showcases impressive engineering in the air conditioning sector, combining efficiency, performance, and innovative technology to meet diverse climate control needs.

The HSU-12HEA03/R2-I is a compact unit designed for smaller spaces, delivering cooling and heating capabilities with an impressive energy efficiency ratio (EER). This model is equipped with a powerful compressor that ensures rapid cooling and heating, while its reverse cycle technology promotes energy savings year-round. The intelligent airflow system distributes air uniformly, preventing hotspots and ensuring comfort throughout the room.

On the other hand, the HSU-09HEA03/R2-I is a versatile and energy-efficient model perfect for smaller rooms. Its sleek design combines functionality with aesthetics, allowing it to blend seamlessly into any environment. The unit operates quietly, making it ideal for bedrooms or study areas. With multiple modes, including cooling, heating, and dehumidifying, it ensures optimal indoor air quality. The included remote control allows users to adjust settings conveniently, enhancing user experience.

The HSU-18HEA03/R2-I is tailored for larger spaces, boasting robust performance and a high cooling capacity. This model stands out with its turbo cooling feature, which rapidly lowers room temperature at the push of a button. This is particularly beneficial in extreme heat scenarios. Like its counterparts, it utilizes advanced inverter technology, making it energy efficient while maintaining consistent temperatures.

All three units feature self-cleaning technology, reducing the need for frequent maintenance. This feature helps prevent the build-up of dust and bacteria, promoting healthier air quality. Additionally, they incorporate smart control options, allowing users to monitor and manage their air conditioning systems through mobile applications, ensuring convenience even when away from home.

These Haier models are not only efficient but also environmentally friendly, adhering to international energy standards. With a focus on durability and performance, the HSU series presents a comprehensive solution for anyone looking to enhance their indoor climate while enjoying modern technology and design. Whether for residential or commercial applications, Haier's air conditioners provide a balance of comfort and efficiency, establishing the brand as a leader in the HVAC industry.
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