Samsung AM***FNHDCH, Руководство по установке, Страница: 12 / 38

11
ENGLISH
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 90° Rough Burr
Pipe
cutter
Pipe
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
York
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
Pipe
Flare
5. Check if you flared the pipe correctly. There are some examples of incorrectly flared pipes below.
Uneven
Thickness
Cracked Damaged
Surface
Inclined Correct
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
90° ±2°
45° ±2°
R 0.4~0.8
(0.016~0.032)
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
19.05 3/4 100~120 73.8~88.5 23.6~24.0 0.93~0.94
• In case of needing brazing, you must work with Nitrogen gas blowing.
CAUTION
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