Samsung AM***FN*D series User Manual page 26

Caution
All refrigerant connection must be accessible, in order
to permit either unit maintenance or removing it
completely.
5 Select the insulator 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(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.
Insulator's heat-resistance temperature should be more than 120°C(248°F).
Pipe
mm
6.35 ~ 9.52
Liquid
pipe
12.7 ~ 50.80
6.35
9.52 ~ 25.40
Gas
pipe
28.58 ~ 44.45 1 1/8~1 3/4
50.80
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
You can contact the gas side and liquid side pipes but the
pipes should not be pressed.
When contacting the gas side and gas side pipe, use 1 grade
thicker insulator.
Refrigerant pipe after EEV kit and MCU
Install the gas side and liquid side pipes, leave 10mm of space.
When contacting the gas side and liquid side pipe, use 1 grade
thicker insulator.
Insulation Type (Heating/Cooling)
Pipe size
[30°C(86°F), 85%]
inch mm
1/4~3/8 9
1/2~2 13
1/4 13
3/8~1 19
19
2 25
General High humidity
[30°C(86°F), over 85%]
EPDM, NBR
inch mm
3/8 9
1/2 13
1/2 19
3/4 25
3/4 32
1 38
Remarks
inch
3/8
1/2
Heating resisting
3/4
temperature over
1
120°C(248°F)
1 1/4
1 1/2
Insulation
Insulation
Liquid pipe
Gas pipe
0.39"(10mm)
0.39"(10mm) 0.39"(10mm)
Gas pipe Liquid pipe
25