Samsung Duct Type Series Installation Manual page 13

5. Select the insulation of the refrigerant pipe.
Insulate the gas side and liquid side pipe referring to the thickness according to the pipe size.
Indoor temperature of 30 °C(86 ˚F) and humidity of 85 % is the standard condition. If the pipe is installed in a high
humidity condition, use one grade thicker insulation by referring to the table below.
If installing in an unfavorable conditions,use thicker one.
Insulation's heat-resistance temperature should be more than 120 °C(248 ˚F).
Outer diameter
Pipe
mm
6.35~9.52
Liquid
pipe
12.7~50.80
6.35
9.52~25.4
Gas
pipe
28.58~44.45
50.8
When installing insulation in places and conditions below, use the same insulation that is used for high humidity
conditions.
<Geological condition>
- High humidity places such as shoreline, hot spring, near lake or river, and ridge (when the part of the building is
covered by earth and sand.)
<Operation purpose condition>
- Restaurant ceiling, sauna, swimming pool etc.
<Building construction condition>
- The ceiling frequently exposed to moisture and cooling is not covered.
e.g. The pipe installed at a corridor of a dormitory and studio or near an exit that opens and closes frequently.
- The place where the pipe is installed is highly humid due to the lack of ventilation system.
Insulation Type (Cooling, Heating)
General
[30 °C(86 °F), 85 %]
inch mm inch
1/4~3/8 9
1/2~2 13
1/4 13
3/8~1 19
1 1/8~1 3/4 19
2 25
High humidity
[30 °C(86 °F), over 85 %]
EPDM, NBR
mm
3/8 9
1/2 13
1/2 19
3/4 25
3/4 32 1 1/4
1 38 1 1/2
Remarks
inch
3/8
1/2
3/4
Heating resisting temperature
over 120 °C(248 °F)
1
13