Samsung 018 Series User & Installation Manual page 38

Performing leak test & insulation
5. Select the insulation of the refrigerant pipe.
f Insulate the gas side and liquid side pipe. Thickness is selected according to pipe size. X
f Indoor temperature of 30 °C (86 °F) and humidity of 85% is the standard condition. If installing in a high humidity X
condition, increase insulation by one size by referring to the table below. If installing in unfavorable conditions, use
the thicker size noted.
f Insulator's heat-resistance temperature should be more than 120 °C (248 °F). X
Pipe
mm
6.35 ~ 9.52
Liquid pipe
12.7 ~ 50.80
6.35
9.52 ~ 25.40
Gas pipe
28.58 ~ 44.45
50.80
f When installing insulation in places and conditions below, use the same insulation that is used for high humidity X
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.
- When the pipe is installed in high humidity areas due to lack of a ventilation system.
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Pipe size
[30 °C(86 °F), 85 %]
inch mm
1/4~3/8
1/2~2
1/4
3/8~1
1 1/8~1 3/4
2
Insulation Type (Heating/Cooling)
General
[30 °C(86 °F), over 85 %]
EPDM, NBR
inch
9 3/8
13 1/2
13 1/2
19 3/4
19 3/4
25 1
High humidity
mm inch
9 3/8
13 1/2
19 3/4
25 1
32 1 1/4
38 1 1/2
Remarks
Heating resisting
temperature over
120°C(248°F)