Haier AD482MPERA - Page 228

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L1: Liquid pipe with the total length of 22.22;
L2: Liquid pipe with the total length of 19.05;
L3: Liquid pipe with the total length of 15.88;
L4: Liquid pipe with the total length of 12.7;
L5: Liquid pipe with the total length of 9.52;
L6: Liquid pipe with the total length of 6.35;
Total refrigerant charging volume on site during installation=W2+W3
W: Total refrigerant charging volume on site for maintenance.
Note
:
• To prevent the oil going into the pipe, please use the special tool for R-410A, especially for gauge manifold and
charging hose.
• Mark the refrigerant type in different colours on the tank. R-410A is pink.
• Do not use the charging cylinder, because the R-410A 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.
Fix the refrigerant pipe
In operation, the pipe will vibrate and expand or shrink. If it isn't xed, the refrigerant will focus on one part, which
will cause the pipe broken.
To prevent the central stress, x the pipe for every 2-3m.
Heat insulation
Gas pipe and liquid pipe should be heat insulated separately. Liquid pipe shall be
heat insulated all the time and the only exception is when the customer is totally sure
the unit will only deliver COOLING.
The material for gas pipe should endure the high temperature over 120°C,
which for liquid pipe should be over 70°C.
The material thickness should be over 10mm. When ambient temp. is 30, and the
relative humidity is over 80%, the material thickness should be over 20mm.
The material should cling the pipe adhesively without gap, then be wrapped
with adhesive tape. The connection wire cannot be put together with the
heat insulation material and should be away from each other at
least 20cm.
Refrigerant record form
Model
W1:
Refrigerant
charging
volume to
outdoor unit in
factory
W2:
Refrigerant
charging
volume to
outdoor unit
on site
W3: Refrigerant charging volume to liquid
pipe based on different piping length
calculation
Total
refrigerant
charging
volume on
site during
installation
W: Total
refrigerant
charging
volume
on site for
maintenance
Liquid pipe
diameter
(mm)
Additional refrigerant amount
(kg)
AV08IMWEWA 6kg 0kg Ø6.35 0.022kg/m×__m=__kg
W2+W3=
___kg
W1+W2+
W3=___kg
AV10IMWEWA 6kg 1kg Ø9.52 0.054kg/m×__m=__kg
AV12IMWEWA 6kg 2kg Ø12.7 0.11kg/m×__m=__kg
Ø15.88 0.17kg/m×__m=__kg
Ø19.05 0.25kg/m×__m=__kg
Ø22.22 0.35kg/m×__m=__kg
W3=___kg