Cutting/Flaring The Pipes - Samsung AM JNESCH Series Installation Manual

Cutting/Flaring the pipes

1. Make sure that you prepare the required tools (pipe cutter, reamer, flaring tool and pipe holder).
2. If you want to change the length of pipe, cut it using a pipe cutter ensuring that the cut edge remains at a right angle
with the side of the pipe. There are some examples of correctly and incorrectly cut edges below.
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
5. Check if you flared the pipe correctly. There are some examples of incorrectly flared pipes below.
Correct Inclined
6. Align the pipes and tighten the flare nuts first manually and then with a torque wrench, applying the following torque.
In case of needing brazing, you must work with Nitrogen gas blowing.
CAUTION
90° Oblique
Die
Copper pipe
Outer Diameter
R-410A Flare tool for
(D)
mm inch
6.35 1/4
9.52 3/8
12.70 1/2
15.88 5/8
Damaged Cracked
Surface
Outer diameter Torque
mm inch
6.35 1/4 140~180 14~18 10.3~13.3 8.70~9.10
9.52 3/8 350~430 34~42 25.1~31.0 12.80~13.20 0.50~0.52
12.70 1/2 500~620 49~61 36.1~45.0 16.20~16.60 0.64~0.65
15.88 5/8 690~830 68~82 50.2~60.5 19.30~19.70 0.76~0.78
ENGLISH-15
Rough
A
Copper pipe
Flare nut
clutch type Clutch type
mm inch mm
0~0.5 0~0.02 1.0~1.5
0~0.5 0~0.02 1.0~1.5
0~0.5 0~0.02 1.0~1.5
0~0.5 0~0.02 1.0~1.5
Uneven
Thickness
Flare dimension
Ibf·ft mm
Burr
Yoke
Die
A
Conventional flare tool
Wing nut type
inch mm
0.04~0.06 1.5~2.0
0.04~0.06 1.5~2.0
0.04~0.06 1.5~2.0
0.04~0.06 1.5~2.0
Flare shape
inch
0.34~0.36
R 0.4~0.8
(0.016"~0.032")
inch
0.06~0.08
0.06~0.08
0.06~0.08
0.06~0.08