Cutting Or Extending The Pipe - Samsung NS026NHXEA Installation Manual

I A
NSTALLING THE IR CONDTIONER

Cutting or Extending the Pipe

Pipe cutter
Pipe
Pipe Flare
Flare nut
Indoor outlet pipe Connecting pipe
12
E-
1
Make sure that you have all the required tools (pipe cutter, reamer, flaring tool
and pipe holder).
2 If you want to shorten the pipe, cut it using a pipe cutter, ensuring that the cut
edge remains at 90° with the side of the pipe (see below examples of correct
and incorrect cut edges).
Oblique
3 To prevent a gas leak, remove all burrs at the cut edge of the pipe using a reamer.
CAUTION Face the pipe down while removing the burrs to make sure
that burrs do not get in to the pipe.
4
Put a flare nut slightly into the pipe and modify the flare.
Outer Diameter (D)
ø6.35 mm
ø9.52 mm
ø12.70 mm
ø15.88 mm
ø19.05 mm
ø22.23 mm
5 Check if you flared the pipe correctly (see examples of incorrectly flared pipes
below).
Correct
Inclined
6 Align the pipes to connect them easily. Tighten the flare nuts first with your
hands, and then with a torque wrench, applying the following torque:
Outer Diameter
ø6.35 mm
ø9.52 mm
ø12.70 mm
ø15.88 mm
ø19.05 mm
ø22.23 mm
Note Excessive torque can be cause of gas leakage.
In case brazing the pipe, the nitrogen gas must be blown into the pipe
(50 Pa). The joint must be accessible and serviceable.
CAUTION
Tighten the flare nut with torque wrench according to specified method.
If the flare nut is over-tightened, the flare may break and cause refrigerant
gas leakage.
Rough
Depth (A)
Thickness
0.8mm 1.3 mm
0.8mm 1.8 mm
0.8mm 2.0 mm
1.0mm 2.2 mm
1.0mm 2.2 mm
1.0mm 2.2 mm
Damaged
Cracked
Surface
Thickness Torque (kgf•cm)
0.8mm 140~170
0.8mm 250~280
0.8mm 380~420
1.0mm 440~480
1.0mm 990~1210
1.0mm 990~1210
Burr
Uneven
Thickness