Heat Insulation; Fix The Refrigerant Pipe; Refrigerant Record Form - Haier AV08NMSETA Service Manual

W1:
Refrigerant
charging
Model
volume to
outdoor unit
at factory
AV08NMSETA
AV10NMSETA 7.4kg
AV12NMSETA
Note:
• To prevent the different oil into the pipe, please use the special tool for R410A, especially for gauge manifold and
charging hose.
• Mark the refrigerant type in different colour on the tank. R410A is pink.
• Must not use the charging cylinder, because the R410A will change when transferring to the cylinder.
• When charging refrigerant, the refrigerant should be taken out from the tank as liquid state.
• Mark the counted refrigerant volume due to the distributing pipe length on the label.

Heat insulation

■
Gas pipe and liquid pipe should be heat insulated separately.
■
The material for gas pipe should endure the high temperature over 120°C.
■
That for liquid pipe should be over 70°C.
■
The material thickness should be over 10mm, when ambient temp.
is 30°C, and the relative humidity is over 80%, the material thickness
should be over 20mm.
■
The material should cling the pipe closely without gap, then
be wrapped with adhesive tape. The connection wire can not
be put together with the heat insulation material and
should be far at least 20cm.

Fix the refrigerant pipe

■
In operation, the pipe will vibrate and expand or shrink.
If not being fixed, the refrigerant will focus on one part to cause the broken pipe.
■
To prevent the central stress, fix the pipe for every 2-3m.

Refrigerant record form

W3: Refrigerant charging volume
W2:
to liquid pipe base on different
Refrigerant
piping length calculation
charging
volume to
outdoor unit Liquid pipe
diameter
on site
(mm)
0kg Ø6.35
0kg Ø9.52
0kg Ø12.7
Ø15.88
Ø19.05
Ø22.22
W3=___kg
37 37
Total refrigerant
volume
charging on
site during
Additional
installation
refrigerant amount
(kg)
0.022kg/m×__m=__
kg
0.054kg/m×__m=__
kg
0.11kg/m×__m=__
kg
0.17kg/m×__m=__
W2+W3= ___
kg
0.25kg/m×__m=__
kg
0.35kg/m×__m=__
kg
Liquid pipe
W: Total
refrigerant volume
charging on site
for maintenance
W1+W2+W3=___
kg kg
Connection wire
Over 20cm
Adhesive tape
Gas pipe
Heat insulator