Samsung AM007FN1DCH Series, Руководство по установке, Страница: 13 / 34

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Cutting/Flaring the Pipes
1
Make sure that you prepared 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. There are some
examples of correctly and incorrectly cut edges below.
Oblique Rough Burr
3
To prevent a gas leak, remove all burrs at the cut edge of the pipe using
a reamer.
4
Carry out flaring work using flaring tool as shown below.
Flaring tool
Clutch type Wing nut type
A
Die
Copper pipe
Yoke
Die
Copper pipe
Flare nut
Pipe diameter
[D]
Depth of flaring part [A]
Using flaring tool
for R-410A
Using conventional flaring tool
Clutch type Wing nut type
mm inch mm inch mm inch mm inch
6.35 1/4 0~0.5 0~0.02 1.0~1.5 0.04~0.06 1.5~2.0 0.06~0.08
9.52 3/8 0~0.5 0~0.02 1.0~1.5 0.04~0.06 1.5~2.0 0.06~0.08
12.7 1/2 0~0.5 0~0.02 1.0~1.5 0.04~0.06 1.5~2.0 0.06~0.08
15.88 5/8 0~0.5 0~0.02 1.0~1.5 0.04~0.06 1.5~2.0 0.06~0.08
5
Check if you flared the pipe correctly. There are some examples of
incorrectly flared pipes below.
Inclined Correct Damaged Surface Cracked Uneven Thickness
6
Align the pipes and tighten the flare nuts first manually and then with a torque
wrench, applying the following torque.
Outer diameter Torque Flare dimension
Flare shape
mm(inch)
mm inch N•m lbf.ft mm inch
6.35 1/4 14~18 10.3~13.3 8.7~9.1 0.34~0.36
9.52 3/8 34~42 25.1~31.0 12.8~13.2 0.50~0.52
12.7 1/2 49~61 36.1~45.0 16.2~16.6 0.64~0.65
15.88 5/8 68~82 50.2~60.5 19.3~19.7 0.76~0.78
90
° ±
2°
45
° ±
2°
R 0.4~0.8
(0.016~0.032)
In case of needing brazing, you must work with Nitrogen gas blowing.
미주향_DVMS_1Way Cassette_IM_EN_03806A(1).indd 12 2013-03-06 오후 5:58:20