Samsung DVM S AM MXVAFC Series Installation Manual page 48

Refrigerant pipe installation
Cutting or flaring the pipes
1. Make sure that you prepared the required tools.
Pipe cutter, Deburring tool, flaring tool and pipe holder, etc.
2. If you want to shorten the pipe, cut it with a pipe cutter ensuring that the cut edge remains at 90° with the side of the
pipe.
Refer to below illustrations for correct and incorrect examples of cut edges.
3. To prevent a gas leak, remove all burrs at the cut edge of the pipe using a Deburring tool.
4. Carry out flaring work using flaring tool as shown below.
[Flaring tools]
Clutch type
48
Oblique
90°
Wing nut type
Pipe diameter
[D, mm (inch)]
ø6.35(ø1/4)
ø9.52(ø3/8)
ø12.70(ø1/2)
ø15.88(ø5/8)
Rough
Flaring bar
Pipe
Depth of flaring part [A, mm (inch)]
Using flaring tool for
R-410A
0~0.5(0~0.02) 1.0~1.5(0.04~0.06)
0~0.5(0~0.02) 1.0~1.5(0.04~0.06)
0~0.5(0~0.02) 1.0~1.5(0.04~0.06)
0~0.5(0~0.02) 1.0~1.5(0.04~0.06)
Burr
A
Yoke
Pipe
Flare nut
Using conventional flaring tool
Clutch type Wing nut type
1.5~2.0(0.06~0.08)
1.5~2.0(0.06~0.08)
1.5~2.0(0.06~0.08)
1.5~2.0(0.06~0.08)
Flaring bar