Cutting Or Flaring The Pipes - Samsung KXWD Series Installation Manual

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.
90°
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
Pipe diameter
[D, mm (inch)]
12.70 (1/2)
15.88 (5/8)
5. Check that you flared the pipe correctly.
Refer to below illustrations for correct and incorrect examples of flared pipe.
Correct Inclined
If foreign matters or burrs are not removed after cutting pipe, refrigerant gas may leak.
If foreign matters enter inside the pipe, important interior parts of the unit may get damaged or product
CAUTION
efficiency will be reduced. So, the direction of pipe should be downward during pipe cutting or flaring.
Oblique
Flaring bar
Wing nut type
Using flaring tool for
R-410A
6.35 (1/4) 0 ~ 0.5 (0 ~ 0.02)
9.52 (3/8) 0 ~ 0.5 (0 ~ 0.02)
0 ~ 0.5 (0 ~ 0.02)
0 ~ 0.5 (0 ~ 0.02)
Damaged Surface
ENGLISH-38
Rough Burr
A
Flare nut
Pipe
Depth of flaring part [A, mm (inch)]
Using conventional flaring tool
Clutch type
1.0 ~ 1.5 (0.04 ~ 0.06)
1.0 ~ 1.5 (0.04 ~ 0.06)
1.0 ~ 1.5 (0.04 ~ 0.06)
1.0 ~ 1.5 (0.04 ~ 0.06)
Cracked Uneven Thickness
Yoke
Flaring bar
Pipe
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)