Insulation Work - Kaisai KOU-12HDN1 Service Manual

Insulation Work

5. Insulation Work
5.1 Insulation material and thickness
1). Insulation material
Insulation material should adopt the material which is able to endure the pipe's temperature: no less than 70
℃ in the low
less than 120 -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
2). Thickness choice for insulation material
Insulation material thickness is as follows:
Refrigerant pipe
Drainage pipe
5.2 Refrigerant pipe insulation
1). Work Procedure
① Before laying the pipes, the non -jointing parts and non-connection parts should be heat insulated.
② W hen the gas proof test is eligible, the jointing area, expanding area and the flange area should be heat insulated
2). Insulation for non-jointing parts and non-connection parts
wrong
Gas pipe and liquid pipe should
not be put together to insulate
132
℃)
Pipe diameter (mm)
Φ6.4—Φ25.4
Φ28.6—Φ38.1
Inner diameterΦ20—Φ32
Insulate the gas pipe
(cooling only)
MLCAC-UTSM-2010-10
℃)
Adiabatic material thickness
10mm
15mm
6mm
right
Insulate the gas pipe and
liquid pipe
℃ in the high
-pressure side, no
Installation