Samsung AE022MNJDEH, Руководство по установке

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11
Ins
tallation Pr
oc
edur
e
English
Inclined Damaged
Surface
Cracked Uneven
Thickness
6 Align the pipes and tighten the flare nuts first
manually and then with a torque wrench, applying
the following torque.
R 0.4~0.8
90°±2°
45
°±2°
L
D
Outer
diameter (D,
mm)
Connection Torque
Flare dimension
(L, mm)
kgf•cm N•m
6.35 140~180 14~18 8.70~9.10
9.52 350~430 34~42 12.80~13.20
2.70 500~620 49~61 16.20~16.60
15.88 690~830 68~82 19.30~19.70
CAUTION
In case of needing brazing, you must work with nitrogen
gas blowing.
Step 7 Performing the gas leak test
To identify potential gas leaks on the indoor unit, inspect
the connection area of each refrigerant pipe using a leak
detector for R-410A.
Before recreating the vacuum and recirculating the
refrigerant gas, pressurize the whole system with
nitrogen (using a cylinder with a pressure reducer) at a
pressure above 4 MPa in order to immediately detect
leaks on the refrigerant fittings.
Made vacuum for 15 minutes and pressurizing system
with nitrogen.
CAUTION
• If the pipes require brazing ensure that OFN (Oxygen
Free Nitrogen) is flowing through the system.
Step 8 Insulating the refrigerant
pipes
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 Acrylonitrile
Butadien Rubber separately around each refrigerant pipe.
No gap
NBR
NOTE
• Always make the seam of pipes face upwards.
CAUTION
• 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.
2
Wind insulating tape around the pipes and drain hose
avoiding compressing the insulation too much.