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ENGLISH
Cutting or flaring the pipes
1. Make sure that you prepared the required tools.
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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.
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Refer to below illustrations for correct and incorrect examples of cut edges.
90°
Oblique
Rough
Burr
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.
A
Flaring bar
Pipe
Yoke
Flaring bar
Pipe
Flare nut
Clutch type
Wing nut type
[Flaring tools]
Pipe diameter
[D (mm)]
Depth of flaring part [A (mm)]
Using flaring tool for
R-410A
Using conventional flaring tool
Clutch type
Wing nut type
Ø 6.35
0~0.5
1.0~1.5
1.5~2.0
Ø 9.52
0~0.5
1.0~1.5
1.5~2.0
Ø 12.70
0~0.5
1.0~1.5
1.5~2.0
Ø 15.88
0~0.5
1.0~1.5
1.5~2.0
5. Check that you flared the pipe correctly.
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Refer to below illustrations for correct and incorrect examples of flared pipe.
Uneven Thickness
Cracked
Damaged Surface
Inclined
Correct
• 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
efficiency will be reduced. So, the direction of pipe should be downward during pipe cutting or flaring.
CAUTION
Summary of Contents for DVM S AM080FXVAGH
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