23
EN
G
LIS
H
Unit : inch(mm)
Pipe
Pipe size
Insulation type (Heating/Cooling)
Remarks
Standard [83°F(30°C), 85%] High humidity [83°F(30°C), over 85%]
EPDM, NBR
Liquid pipe
Ø1/4"(6.35)~Ø3/8"(9.52)
3/8"(9)t
Internal
temperature
is higher than
248°F(120°C)
Ø1/2"(12.70)~Ø2"(50.80)
1/2"(13)t
Gas pipe
Ø1/4"(6.35)
1/2"(13)t
3/4"(19)t
Ø3/8"(9.52)~Ø1"(25.40)
3/4"(19)t
1.0"(25)t
Ø1"1/8(28.58)~Ø1"3/4(44.45)
1" 1/4 (32)t
Ø2"(50.80)
1.0"(25)t
1"1/2 (38)t
X
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.
Refrigerant pipe before EEV kit and MCU or without EEV kit and MCU
X
f
You can contact the gas side and liquid side pipes but the pipes should not be
pressed.
X
f
When contacting the gas side and liquid side pipe, use 1 grade thicker
insulation.
Gas pipe
Liquid
pipe
Insulation
Insulation
Refrigerant pipe after EEV kit and MCU
X
f
Install the gas side and liquid side pipes, leave 0.4inch(10mm) of space.
X
f
When contacting the gas side and liquid side pipe, use 1 grade thicker
insulation.
Gas pipe
0.4inch(10mm)
Liquid pipe
0.4inch(10mm)
0.4inch(10mm)
• Install the insulation not to get wider and use the
adhesives on the connection part of it to prevent
moisture from entering.
• Wind the refrigerant pipe with insulation tape if it is
exposed to outside sunlight.
• Install the refrigerant pipe respecting that the insulation
does not get thinner on the bent part or hanger of pipe.
• Add the additional insulation if the insulation plate gets
thinner.
CAUTION
Additional
insulation
Hanger
Refrigerant pipe
insulation
a×3
a
Big Duct_IBIM_E_33766-3.indd 23
2012-01-13 오후 9:40:29