Insulating The Refrigerant Pipe; Brazing The Pipe - Samsung AEX060EDEHA Installation Manual

Refrigerant piping work

Insulating the refrigerant pipe

f You must check if there is a gas leak before completing all the installation process.
f Use EPDM insulation which meets the following condition.
Item
Density
Dimension change route by heat
Water absorption rate
Thermal conductivity
Moisture transpiration factor
Moisture transpiration grade
Formaldehyde dispersion
Oxygen rate
Insulating the refrigerant pipe
f Be sure to insulate the refrigerant pipe, joints and connections with class 'o' material.
f If you insulate the pipes, the condensed water does not fall from the pipes and the capacity of the Air to Water
Heat Pump is improved.
f Check if there are any insulation cracks on the bent pipe.
Insulation
Gas side pipe
Liquid side pipe

Brazing the Pipe

f Make sure that there is no moisture inside the pipe.
f Make sure that there are no foreign materials and impurities in the pipe.
Replacement of Nitrogen gas
1. Use oxygen free nitrogen gas when brazing the pipes as shown in the picture.
2. If you do not use Nitrogen gas when brazing the pipes, oxidation may form in the pipe. It can cause the
damage of the compressor and valves.
3. Adjust the flow rate of the replacement with a pressure regulator to maintain 0.05m
4. Perform brazing of the service valve after protecting the valve.
Brazing part
Nitrogen gas
Pressure regulator
Taping
20
g/cm²
g/cm²
kcal/m·h·˚C
ng/(m²·s·Pa)
{g/(m²·24h)}
mg/L
Clamp
Indoor unit
1/4" copper pipe
Valve stem
Unit Standard
0.048~0.096
% -5 or less
0.005 or less
0.032 or less
15 or less
15 or less
% 25 or less
Insulation
Indoor unit
Install the insulation
to be overlapped
Remarks
KSM 3014-01
KSL 9016-95
KSM 3808-03
KSA 1013-01
- KSF 3200-02
ISO 4589-2-96
Overlapped
/h or more.
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