ENGLISH
21
Cutting/Flaring the pipes
1 . Make sure that you have the required tools available . (pipe cutter, reamer, flaring tool and pipe holder)
2 . If you wish to shorten the pipes, cut it with a pipe cutter, taking care to ensure that the cut edge remains at a 90° angle
with the side of the pipe . Refer to the illustrations below for examples of edges cut correctly and incorrectly .
Oblique
Rough
Burr
3 . To prevent any gas from leaking out, remove all burrs at the cut edge of the pipe, using a reamer .
4 . Slide a flare nut on to the pipe and modify the flare .
Outer Diameter (D)
Depth (A)
ø6 .35 mm(1/4")
0 .051 inch
ø9 .52 mm(3/8")
0 .071 inch
ø12 .70 mm(1/2")
0 .079 inch
ø15 .88 mm(5/8")
0 .087 inch
ø19 .05 mm(3/4")
0 .087 inch
5 . Check that the flaring is correct, referring to the illustrations below for examples of incorrect flaring .
Uneven
Thickness
Cracked
Damaged
Surface
Inclined
Correct
6 . Align the pipes and tighten the flare nuts first manually and then with a torque wrench, applying the following torque .
Valve
Flare nut
Valve cap
Pressure port cap
Valve needle
Pressure port
Wrench(inch) lbf·ft Wrench(inch) lbf·ft Wrench(inch) lbf·ft Wrench(inch) lbf·ft Wrench(inch) lbf·ft
1/4"
0 .67
13 .3
0 .91
14 .8
0 .71
11 .8~
13 .9
Allen(Hex .)0 .2
6 .6
-
0 .25
3/8"
0 .87
31
0 .91
1/2"
1 .02
40 .6
1 .14
29 .5
9 .6
5/8"
1 .14
48
1 .14
3/4"
1 .42
73 .8
1 .5
• If the pipes require brazing ensure that OFN(Oxygen Free Nitrogen) is flowing through the system .
• Nitrogen blowing pressure range is 0 .02 ~ 0 .05 MPa .
CAUTION
4way Outdoor_북미향_IM_EN_05138A-00.indd 21
2014-12-08 오후 3:12:47
