R410A 60Hz EER 2.36 Series Service Manual
5.Insulation Work
5.1 Insulaon material and thickness
5.1.1. Insulation material
Insulation material should adopt the material which is able to endure the pipe’s temperature: no less than
70
in the high-pressure side, no less than 120 in the low-pressure side(For the cooling type machine,
no requirements at the low-pressure side.)
Example: Heat pump type----Heat-resistant Polyethylene foam (withstand above 120 )
Cooling only type----Polyethylene foam (withstand above 100
)
5.1.2. Thickness choice for insulation material
Insulation material thickness is as follows:
Inner diameter 20— 32
5.2 Refrigerant pipe insulaon
5.2.1. Work Procedure
Before laying the pipes, the non-jointing parts and non-connection parts should be heat insulated.
When the gas proof test is eligible, the jointing area, expanding area and the flange area should be
heat insulated
5.2.2. Insulation for non-jointing parts and non-connection parts
wrong right
Gas pipe and liquid pipe should
Insulate the gas pipe
(cooling only)
Insulate the gas pipe and
liquid pipe
For construction convenience, before laying pipes, use insulation material to insulate the pipes to be deal
with, at the same time, at two ends of the pipe, remain some length not to be insulated, in order to be
welded and check the leakage after laying the pipes.
5.2.3. Insulate for the jointing area, expanding area and the flange area
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