Cutting/Flaring The Pipes - Samsung AC***MXSCCC Installation Manual

Cutting/Flaring the pipes

1. Make sure that you have the required tools available. (pipe cutter, reamer, flaring tool and pipe holder)
2. If you wish to shorten the pipes, cut it with a pipe cutter, taking care to ensure that the cut edge remains at a 90° angle
with the side of the pipe. Refer to the illustrations below for examples of edges cut correctly and incorrectly.
3. To prevent any gas from leaking out, remove all burrs at the cut edge of the pipe, using a reamer.
4. Slide a flare nut on to the pipe and modify the flare.
5. Check that the flaring is correct, referring to the illustrations below for examples of incorrect flaring.
Outer diameter [D,mm(inch)]
Ø 6.35(1/4")
Ø 9.52(3/8")
Ø 12.70(1/2")
Ø 15.88(5/8")
Ø 19.05(3/4")
If the pipes require brazing ensure that OFN(Oxygen Free Nitrogen) is flowing through the system.
Nitrogen blowing pressure range is 0.02 ~ 0.05 MPa.
CAUTION
Oblique
Outer Diameter (D)
ø6.35 mm(1/4")
ø9.52 mm(3/8")
ø12.70 mm(1/2")
ø15.88 mm(5/8")
ø19.05 mm(3/4")
Correct
14~18(10.3~13.3)
34~42(25.1~31.0)
49~61(36.1~45.0)
68~82(50.1~60.5)
100~120(73.8~88.5)
English-22
Rough Burr
Depth (A)
0.051 inch
0.071 inch
0.079 inch
0.087 inch
0.087 inch
Inclined Damaged
Surface
Flare dimension [L,mm(inch)]
8.7~9.1(0.34~0.36)
12.8~13.2(0.50~0.52)
16.2~16.6(0.64~0.65)
19.3~19.7(0.76~0.78)
23.6~24.0(0.93~0.94)
Cracked Uneven
Thickness
Flare shape (mm)
R 0.4~0.8