Cutting/Flaring The Pipes - Samsung AVXC1 Series Installation Manual

Cutting/Flaring the Pipes

16
E-
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
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
Outer diameter
(mm)
R410A clutch type
6.35
9.52
12.70
15.88
5 Check if you flared the pipe correctly. There are some examples of
incorrectly flared pipes below.
Inclined Damaged Surface
6
Align the pipes and tighten the flare nuts first manually and then with a torque
wrench, applying the following torque.
Outer diameter Connection
(mm) Torque(kgf•cm)
6.35 145~175
9.52 333~407
12.70 505~615
15.88 630~769
CAUTION
When it needs to be brazed, you must work with Nitrogen gas blowing.
Rough
A
Die
Copper pipe
A(mm)
Conventional flare tool
Flare tool for
Clutch type
0~0.5 1.0~1.5
0~0.5 1.0~1.5
0~0.5 1.0~1.5
0~0.5 1.0~1.5
Cracked
Flare dimension
(mm)
8.70~9.10
12.80~13.20
16.20~16.60
19.30~19.70
Burr
York
Die
Copper pipe
Flare nut
Wing nut type
1.5~2.0
1.5~2.0
1.5~2.0
1.5~2.0
Uneven Thickness
Flare shape
(mm)
R 0.4~0.8