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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 and humidity of 85% is the standard condition.
If installing in a high humidity condition, use one grade thicker insulator by referring to the table below.
If installing in an unfavorable conditions, use thicker one.
• Insulator's heat-resistance temperature should be more than 120°C.
Pipe
Liquid pipe
Gas pipe
• 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.
DVM S NASA_Global 4-WC_사우디향_IM_EN_04191A.indd 17
Insulation Type (Heating/Cooling)
Standard
Pipe size
[30°C, 85%]
Ø6.35 ~ Ø9.52
Ø12.7 ~ Ø50.80
13t
Ø6.35
13t
Ø9.52~Ø25.40
19t
Ø28.58~Ø44.45
Ø50.80
25t
High humidity
[30°C, over 85%]
EPDM, NBR
9t
19t
25t
32t
38t
Remarks
Internal temperature is
higher than 120°C
17
2013-11-05 오전 11:30:25
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