Cutting/Flaring The Pipes - Samsung AC030JXADCH Installation Manual

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 .
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 .
5 . Check that the flaring is correct, referring to the illustrations below for examples of incorrect flaring .
6 . Align the pipes and tighten the flare nuts first manually and then with a torque wrench, applying the following torque .
Flare nut
Valve
Wrench(inch) lbf·ft Wrench(inch) lbf·ft Wrench(inch) lbf·ft Wrench(inch) lbf·ft Wrench(inch) lbf·ft
1/4" 0 . 6 7
3/8" 0 . 8 7
1/2" 1 . 0 2
5/8" 1 . 1 4
3/4" 1 . 4 2
• If the pipes require brazing ensure that OFN(Oxygen Free Nitrogen) is flowing through the system .
• Nitrogen blowing pressure range is 0 . 0 2 ~ 0 . 0 5 MPa .
CAUTION
22
4way Outdoor_북미향_IM_EN_DB68-05152A-00_CS6.indd 22
Oblique Rough
Outer Diameter (D) Depth (A)
ø6 . 3 5 mm(1/4") 0 . 0 51inch
ø9 . 5 2 mm(3/8") 0 . 0 71inch
ø12 . 7 0 mm(1/2") 0 . 0 79inch
ø15 . 8 8 mm(5/8") 0 . 0 87inch
ø19 . 0 5 mm(3/4") 0 . 0 87inch
Correct Inclined
Valve cap Pressure port cap
13 . 3 0 . 9 1
14 . 8
31 0 . 9 1
40 . 6 1 . 1 4
48 1 . 1 4 29 . 5
73 . 8 1 . 5
Burr
Damaged Cracked
Surface
Valve needle
11 . 8 ~
0 . 7 1 Allen(Hex . ) 0 . 2
13 . 9
Uneven
Thickness
Pressure port
6 . 6
- 0 . 2 5
9 . 6
2015-01-05 오후 5:00:44