25
ENGLISH
5
Select the insulator of the refrigerant pipe.
X Insulate the gas side and liquid side pipe referring to the thickness according to the pipe size.
X Indoor temperature of 30°C(86°F) and humidity of 85% is the standard condition.
If install 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.
X Insulator’s heat-resistance temperature should be more than 120°C(248°F).
X 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.
Refrigerant pipe before EEV kit and MCU or without EEV kit and MCU
X You can contact the gas side and liquid side pipes but the
pipes should not be pressed.
X
When contacting the gas side and gas side pipe, use 1 grade
thicker insulator.
Refrigerant pipe after EEV kit
and MCU
X
Install the gas side and liquid side pipes, leave 10mm of space.
X
When contacting the gas side and liquid side pipe, use 1 grade
thicker insulator.
Gas pipe
Liquid pipe
Insulation
Insulation
Pipe
Pipe size
Insulation Type (Heating/Cooling)
Remarks
General
[30°C(86°F), 85%]
High humidity
[30°C(86°F), over 85%]
EPDM,NBR
mm inch mm inch mm inch
Liquid
pipe
6.35 ~ 9.52 1/4~3/8 9 3/8 9 3/8
Heating resisting
temperature over
120°C(248°F)
12.7 ~ 50.80 1/2~2 13 1/2 13 1/2
Gas
pipe
6.35 1/4 13 1/2 19 3/4
9.52 ~ 25.40 3/8~1 19 3/4 25 1
28.58 ~ 44.45 1 1/8~1 3/4 19 3/4 32 1 1/4
50.80 2 25 1 38 1 1/2
Gas pipe Liquid pipe
0.39"(10mm)
0.39"(10mm) 0.39"(10mm)
All refrigerant connection must be accessible, in order
to permit either unit maintenance or removing it
completely.
Caution
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