Samsung AE120JXEDEH Installation Manual page 28

Refrigerant piping work
Selecting the insulator of the refrigerant pipe
f According to pipes size, insulate pipes on gas and liquid side by selecting appropriate insulations.
f Standard condition is under a temperature of 30 °C and a humidity of 85 %. If the units are installed in extreme weather
conditions, select the insulator by table below.
Pipe type Pipe diameter (mm)
ø6.35~ø19.05
Liquid
ø12.70~ø19.05
ø6.35
ø9.52
Gas ø12.70
ø15.88
ø19.05
• Install the insulation not to be get wider and use the adhesives on the connection part of it to prevent moisture
entering.
CAUTION
• 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.
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
Thickness of insulator
Normal
(Under 30 °C, 85 %)
EPDM, NBR
9
13
13
19
Unit
g/cm
%
g/cm
kcal/m·h·˚C
ng/(m ·s·Pa)
{g/(m ·24h)}
mg/L
%
ENGLISH-28
High humidity
(Over 30 °C, 85 %)
9
13
19
25
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
Remarks
The material shall has
heat resistant over
120 °C
Remarks
KSM 3014-01
KSL 9016-95
KSM 3808-03
KSA 1013-01
KSF 3200-02
ISO 4589-2-96