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2. Wind insulating tape around the pipes and drain hose avoiding to
compress the insulation too much.
3. Finish wrapping insulating tape around the rest of the pipes leading to
the outdoor unit.
4. The pipes and electrical cables connecting the indoor unit with the
outdoor unit must be fixed to the wall with suitable ducts.
• All refrigerant connection must be accessible, in order to
permit either unit maintenance or removing it completely.
CAUTION
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 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.
• 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.
Insulation Type (Heating/Cooling)
Pipe size
[30°C, 85%]
Ø6.35 ~ Ø9.52
Ø12.7 ~ Ø50.80
Ø6.35
Ø9.52~Ø25.40
Ø28.58~Ø44.45
Ø50.80
Standard
High humidity
[30°C, over 85%]
EPDM, NBR
9t
13t
13t
19t
25t
Insulation cover pipe
Insulation pipe
Indoor unit
Be sure to overlap
the insulation
• Must fit tightly against
body without any gap.
CAUTION
Remarks
9t
13t
19t
Internal temperature is
higher than 120°C
25t
32t
38t
25
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