13
Installation Pr
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English
Step 9 Insulating the refrigerant pipes
Once you have checked that there are no leaks in the system, you
can insulate the piping and hose.
1
To avoid condensation problems, place Acrylonitrile Butadien
Rubber separately around each refrigerant pipe.
No gap
NBR
NOTE
• Always make the seam of pipes face upwards.
2
Wind insulating tape around the pipes and drain hose avoiding
compressing the insulation too much.
Insulation cover pipe
Insulation pipe
Be sure to overlap the insulation.
Indoor unit
CAUTION
• Be sure to wrap insulation tightly without any gaps.
3
Finish wrapping insulating tape around the rest of the pipes
leading to the outdoor unit.
4
The pipes and electrical cables connecting the indoor unit with
the outdoor unit must be fixed to the wall with suitable ducts.
CAUTION
• Make sure that all refrigerant connection must be accessible
for easy maintenance and detachment.
• Install the insulation not to get wider and use the adhesives
on the connection part of it to prevent moisture from
entering.
• Wind the refrigerant pipe with insulation tape if it is exposed
to outside sunlight.
• Install the refrigerant pipe respecting that the insulation does
not get thinner on the bent part or hanger of pipe.
• Add the additional insulation if the insulation plate gets
thinner.
Additional insulation
Hanger
Refrigerant
pipe insulation
a x 3
a
5
Select the insulation of the refrigerant pipe.
• Insulate the gas side and liquid side pipe, noting the
insulation thickness that must differ according to the pipe
size.
• Standard: Less than an indoor temperature of 86°F (30°C),
with humidity at 85%. If installing in a high humidity
environment, use one grade thicker insulator by referring to
the table below. If installing in an unfavourable environment,
use thicker one.
• The heat-resistance temperature of the insulator must be
more than 248°F (120°C).
Summary of Contents for AJ BNHDCH Series
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