Cutting/Flaring The Pipes - Samsung AM***HNEPCH 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.
90°
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
Oblique
A
Die
Copper pipe
Outer Diameter
R-410A Flare tool for
[D (mm)]
clutch type
6.35 0~0.5
9.52 0~0.5
12.70 0~0.5
15.88 0~0.5
Damaged Cracked
Surface
Torque
Outer diameter
(mm)
kgf•cm
6.35 140~180
9.52 350~430
12.70 500~620
15.88 690~830
ENGLISH-16
Rough
Yoke
Die
Copper pipe
Flare nut
A(mm)
Conventional flare tool
Clutch type
1.0~1.5
1.0~1.5
1.0~1.5
1.0~1.5
Uneven
Thickness
Flare dimension
(mm)
N•m
14~18 8.70~9.10
34~42 12.80~13.20
49~61 16.20~16.60
68~82 19.30~19.70
Burr
Wing nut type
1.5~2.0
1.5~2.0
1.5~2.0
1.5~2.0
Flare shape
R 0.4~0.8