10
Performing leak test & insulation
5
Select the insulation of the refrigerant pipe.
f
Insulate the gas side and liquid side pipe referring to the thickness according to the pipe size.
f
Indoor temperature of
30°C(86°F)
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.
f
Insulator’s heat-resistance temperature should be more than 120 °C(248 °F).
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 ~ 19.05
1/2~3/4
13
1/2
13
1/2
Gas
pipe
6.35
1/4
13
1/2
19
3/4
9.52
3/8
19
3/4
25
1
12.7
1/2
19
3/4
25
1
15.88
5/8
19
3/4
25
1
19.05
3/4
19
3/4
25
1
f
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.
t
Install the insulation not to get wider and use the adhesives on the connection part of it to prevent moisture from
entering.
t
Wind the refrigerant pipe with insulation tape if it is exposed to outside sunlight.
t
Install the refrigerant pipe respecting that the insulation does not get thinner on the bent part or hanger of pipe.
t
Add the additional insulation if the insulation plate gets thinner.
Additional insulation
Hanger
Insulated refrigerant pipe
a
×
3
a
CAUTION
Summary of Contents for AM036JNCDCH
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Page 32: ...This product is RoHS compliant DB68 05464A 00 EN ES FR PT ...
