Samsung ACN016NDEHA Installation Manual - page 10
10
Performing leak test & insulation
To identify potential gas leaks on the indoor unit, inspect the connection area
of each refrigerant pipe using a leak detector for R410A.
Before recreating the vacuum and recirculating the refrigerant gas, it is
advisable to pressurize the whole system with nitrogen (using a cylinder with
pressure reducer) at a pressure above 40 bar in order to immediately detect
leaks on the refrigerant fittings.
Made vacuum for 15 minutes and pressurising system with nitrogen.
Once you have checked that there are no leaks in the system, you can insulate the piping and hose.
1 To avoid condensation problems, place T13.0 or thicker Acrylonitrile Butadien
Rubber separately around each refrigerant pipe.
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.
5 Select the insulation of the refrigerant pipe.
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Insulate the gas side and liquid side pipe referring to the thickness
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dition.
If installing in a high humidity condition, use one grade thicker insulator by referring to the table below.
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Leak test
Insulation
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Indoor unit
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the insulation
Insulation pipe
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body without any gap.
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Pipe
Pipe size
Insulation Type (Heating/Cooling)
Remarks
Standard [30°C, less than 85%] High humidity [30°C, over 85%]
EPDM, NBR
Liquid
pipe
_
9t 9t
Internal temperature is
higher than 120°C
Ø12.7 ~ Ø19.05
13t
13t
(BT
pipe
13t 19t
Ø9.52
19t 25t
Ø12.70
Ø15.88
Ø19.05
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requires the use of sheaths insulation form without using CFC and
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