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Refrigerant pipe installation
Selecting the insulation of refrigerant pipe
X
X
Insulate the gas pipe and liquid pipe by referring to the thickness of insulator for each pipe size .
X
X
The standard condition is 30°C(86°F), with humidity less than 85% . In the conditions of high humidity, use one grade
thicker .
Pipe
Pipe size [mm (inch)]
Insulation(Cooling, Heating)
Remarks
Standard
[30°C (86°F),
Below 85%]
High humidity
[30 °C (86°F),
85% or more]
EPDM, NBR
Liquid pipe
Ø6 .35 ~ Ø9 .52 (1/4 ~ 3/8)
9t
Heat resisting
temperature is more
than 120°C (248°F)
Ø12 .70 ~ Ø50 .80 (1/2 ~ 2)
13t
Gas pipe
Ø6 .35 (1/4)
13t
19t
Ø9 .52 (3/8)
19t
25t
Ø12 .70 (1/2)
Ø15 .88 (5/8)
Ø19 .05 (3/4)
Ø22 .23 (7/8)
Insulating refrigerant pipe
X
X
You must insulate refrigerant pipe, Y-joint, header joint, and pipe connection area .
X
X
If you insulate the pipes, the condensed water does not fall from the pipes .
X
X
Check if there are any insulation cracks on the bent pipe .
Insulation
Install the insulation to be
overlapped
Fix securely without any gap .
Indoor unit
Insulation
Gas side pipe
Liquid side pipe
Indoor
unit
Clamp
Pipe insulation
Pipe insulation after insulating EEV kit
• The insulation of the gas and liquid pipes can be in
contact with each other but they should not press
excessively against each other .
• When contacting the gas side and liquid side pipe, use
thicker insulation .
• When installing the gas side and liquid side pipes, leave
10mm (3/8 inch) of space .
• When contacting the gas side and liquid side pipe, use
thicker insulation .
Insulation
Gas pipe
Liquid pipe
Insulation
Gas pipe
10mm (3/8”)
Liquid pipe
10mm (3/8”)
10mm (3/8”)
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2013-03-04 오후 4:28:24
