Installation instruction

When bending the pipes, give the roundness as large as possible, to avoid crashing and flat the pipes.

To connect the pipe, fit the center and use hand to screw the nut, as shown in figure:

If do not fit the center and screw the nut hard, the screw thread may be damaged, which will cause refrigerant leakage.

Pay attention not to let alien matters, such as sand, water get into the pipe.

Joint Nut

Spanner

 

Spanner

 

 

 

Pipe diameter

Fasten torque

Liquid pipe 9.52mm

32.7~39.9 N.m

 

Gas pipe 15.88mm

62.8~74.5 N.m

 

(3)Connect the connection pipe of outdoor unit

According to the connection method to connect the connection pipe and in/out liquid pipe and gas pipe.

2. Welding method of pipe

(1)The refrigerant pipe should use clean new pipe. When performing work, pay attention to preventing vapor, dust from entering into the pipe.

(2)When loosening and fastening the connection screw nut, do use two hands to handle. If use one hand, it cannot reach the necessary fastening level.

Please perform the fastening of the screw nut according to the specified torque

External diameter of connection pipe (mm)

Installation torque (N.m)

Fastening torque (N.m)

*9.52

24.5 (2.5kgf.m)

29.4 (3.0kgf.m)

*15.88

49.0 (5.0kgf.m)

53.9 (5.5kgf.m)

3. Cut and flaring method

Use pipe cutter to cut the pipe, the burrs must be removed.

After inserting the flarer, perform flared nut.

Flarer

 

Flaring dimensions as follows:

A

Connect pipe

Pipe diameter

Dimension A (mm)

 

 

Liquid pipe

9.52mm (3/8")

1.0-1.2

 

Gas pipe

15.88mm (5/8")

1.4-2.2

Correct

 

Incorr

 

Slant

Broken

Burrs

Uncompleted

Too long

When connect the accessory thermal insulation material with the thermal insulation material of the onsite connection pipe, do not leave any gap. After finishing installing the thermal insulation material as below Figure shown, then use tape to bind them properly.

When connection, the connecting part

 

 

 

 

 

should not leave any gap, and the thermal

 

 

150

 

 

 

 

 

insulation material should be overlapped.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Thermal insulation material

 

 

 

 

of onsite connection pipe

 

 

 

 

Thermal insulation material

Thermal insulation material (on-site arrangement) Thickness: over 10mm

5

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Haier 0010571564, AU422BIBAA operation manual Welding method of pipe, Cut and flaring method

0010571564, AU422BIBAA specifications

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