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3 . To prevent a gas leak, remove all burrs at the cut edge of the pipe with a reamer .
• Face the pipe down while removing the burrs to make sure that
burrs do not get in to the pipe .
CAUTION
4 . Put a flare nut slightly into the pipe and modify the flare .
Pipe
Flare
5 . Check that you flared the pipe correctly .
- Below figures shows some examples of incorrectly flared pipes .
Correct
6 . Align the pipes to connect them easily . Tighten the flare nuts first with your hands, and then with a torque wrench,
applying the following torque:
Apply frozen oil
Indoor outlet pipe
• Excessive torque can be cause of gas leakage .
NOTE
• You must purge with oxygen free nitrogen while brazing .
CAUTION
Outer diameter
90°± 2°
R 0 .4
~0 . 8
Damaged
Inclined
surface
Flare nut
Connecting pipe
ENGLISH-27
Depth [A (mm)]
[D(mm)]
ø 6 . 3 5
ø 9 . 5 2
ø 12 . 7 0
ø 15 . 8 8
ø19 . 0 5
Cracked
thickness
Outer diameter [mm(inch)]
ø 6 . 3 5 (1/4")
ø 9 . 5 2 (3/8")
ø 12 . 7 0 (1/2")
ø 15 . 8 8 (5/8")
ø19 . 0 5 (3/4")
Pipe
Pipe cutter
Flaring Size [B (mm)]
1 . 3
8 . 7 ~9 . 1
1 . 8
12 . 8 ~13 . 2
2 . 0
16 . 2 ~16 . 6
2 . 2
19 . 3 ~19 . 7
2 . 2
23 . 6 ~24 . 0
Uneven
Torque (N•m)
14~18
34~42
49~61
68~82
100~120
Burr
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