Samsung PC4SUSMB - Performing Leak Test & Insulation

AA
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 ttings.
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(0.51") 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.

X Insulate the gas side and liquid side pipe referring to the thickness
according to the pipe size.
X
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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.
X*OTVMBUPSTIFBUSFTJTUBODFUFNQFSBUVSFTIPVMECFNPSFUIBO¡$
¡' .
t *GUIFQJQFTSFRVJSFCSB[JOHFOTVSFUIBU0'/0YZHFO'SFF/JUSPHFOJTøPXJOHUISPVHIUIFTZTUFN
Leak test
Insulation
/PHBQ
/#35PSUIJDLFS
Insulation cover pipe
Indoor unit
Be sure to overlap
the insulation
Insulation pipe
t .VTUöUUJHIUMZBHBJOTU
body without any gap.
t "MXBZTNBLFUIFTFBNPGQJQFTGBDFVQXBSET
t "MMSFGSJHFSBOUDPOOFDUJPONVTUCFBDDFTTJCMFJOPSEFSUPQFSNJU
either unit maintenance or removing it completely.
t 5IFJOTVMBUJPOIBTUPCFQSPEVDFEJOGVMMDPNQMJBODFPG&VSPQFBO
 SFHVMBUJPOSFH&&$&6UIBU  
requires the use of sheaths insulation form without using CFC and
HCFC gases for health and the environment.
Pipe
Pipe size
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Remarks
(FOFSBM
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High humidity
<¡$¡'PWFS>
&1%./#3
mm inch mm inch mm inch
Liquid
pipe
_ _ 9
3/8 9 3/8
Heating resisting temper
BUVSFPWFS¡$¡'
_ _ 13 1/2 13 1/2
(BT
pipe
 1/4 13 1/2 19 3/4
_ _ 19 3/4  1
_ _ 19 3/4 32 1 1/4
 2  1 38 1 1/2