Cutting/Flaring The Pipe - Samsung RHF100KHEA User & Installation Manual

Cutting/flaring the pipe

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, take care not to allow burrs to enter the pipe and clean the flare.
4. Carry out flaring work using flaring as shown below.
Flaring tool
Clutch type
Outer diameter (mm)
ø6.35 mm
ø9.52 mm
ø12.70 mm
ø15.88 mm
5. Check if you flared the pipe correctly (see examples of incorrectly flared pipes below).
Correct
6. Align the pipes and tighten the flare nuts first manually and then with a torque wrench, applying the following torque.
Indoor outlet pipe
• Purge pipe work with oxygen free nitrogen while brazing.
RHF050KHEA_IB,IM_E_32885-3.indd 33
Rough Burr
A
Die
Wing nut type
Copper pipe
Flare tool for
R410A clutch type
0~0.5
0~0.5
0~0.5
0~0.5
Damaged
Inclined
Surface
Outer diameter
Flare nut
(mm)
ø6.35 mm
ø9.52 mm
ø12.70mm
Connecting pipe
ø15.88 mm
Pipe
cutter
Pipe
York
Die
Copper
Flare nut
pipe
Pipe
A(mm)
Conventional flare tool
Clutch type Wing nut type
0~0.5 1.5~2.0
0~0.5 1.5~2.0
0~0.5 1.5~2.0
0~0.5 1.5~2.0
Uneven
Cracked
Thickness
Connection Flare dimen-
Torque(kgf•cm) sion (mm)
145~175 8.70~9.10
333~407 12.80~13.20
505~615 16.20~16.60
630~769 19.30~19.70
Flare
Flare shape
(mm)
R 0.4~0.8
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2011-10-12 오후 5:30:33