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User Manual - Page 30

For AC180JNHFKH/SA. Also, The document are for others Samsung models: AC180JNHFKH

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30
A
The designs and shape are subject to
change according to the model.
Leak check
Performing leak test & insulation
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 xed to the wall with suitable ducts.
5 Select the insulation 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 and humidity of 85% is the stan dard 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.
Insulator’s heat-resistance temperature should be more than 120°C.
Leak test
Insulation
No gap
NBR(T13.0 or thicker)
Insulation cover pipe
Indoor unit
Be sure to overlap
the insulation
Insulation pipe
• Mustttightlyagainst
body without any gap.
• Alwaysmaketheseamofpipesfaceupwards.
• Allrefrigerantconnectionmustbeaccessible,inordertopermit
either unit maintenance or removing it completely.
• TheinsulationhastobeproducedinfullcomplianceofEuropean
regulation reg. EEC / EU 2037/ 2000 that
requires the use of sheaths insulation form without using CFC and
HCFC gases for health and the environment.
◆
LEAK TEST WITH NITROGEN (before opening valves)
In order to detect basic refrigerant leaks, before recreating the vacuum and
recirculating the R-410A, it’s responsable of installer to pressurize the whole
system with nitrogen (using a cylinder with pressure reducer)
at a pressure above 30 bar (gauge).
◆
LEAK TEST WITH R-410A (after opening valves)
Before opening valves, discharge all the nitrogen into the system and create
vacuum. After opening valves check leaks using a leak detector for refrigerant
R-410A.
• Dischargeallthenitrogentocreateavacuumandchargethesystem.
G_4
NS

HHXEG
AC

JNHFKH
CAUTION
CAUTION
CAUTION
CAUTION
NOTE
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