Samsung AC FB4DEH Series - Checking before use; Maintaining your air conditioner; Tips on using air conditioner

10
Cutting/Flaring the pipes
1. Make sure that you have the required tools available. (pipe cutter, reamer, aring 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 are nut on to the pipe and modify the are.
5. Check that the aring is correct, referring to the illustrations below for examples of incorrect aring.
6. Align the pipes and tighten the are nuts rst manually and then with a torque wrench, applying the following torque.
t *GUIFQJQFTSFRVJSFCSB[JOHFOTVSFUIBU0'/0YZHFO'SFF/JUSPHFOJTøPXJOHUISPVHIUIFTZTUFN
t /JUSPHFOCMPXJOHQSFTTVSFSBOHFJT_.1B
Oblique Rough
Burr
Pipe
cutter
Pipe
Outer Diameter (D) Depth (A)
ø6.35 mm 1.3 mm
ø9.52 mm 1.8 mm
NN 2.0 mm
ø15.88 mm 2.2 mm
ø19.05 mm 2.2 mm
Pipe
Flare
6OFWFO
Thickness
CrackedDamaged
Surface
InclinedCorrect
7BMWF
Flare nut 7BMWFDBQ Pressure port cap 7BMWFOFFEMF Pressure port
8SFODINN /tN 8SFODINN /tN 8SFODINN /tN 8SFODINN /tN 8SFODINN /tN
1/4"  18 23 20 18 16~18 "MMFOIFY 9  0.34
3/8" 22 42 23 20 18 16~18 "MMFOIFY 9  0.34
1/2" 26 55 29 40 18 16~18 "MMFOIFY 13  0.34
5/8" 29 65 29 40 18 16~18 "MMFOIFY 13  0.34
3/4" 36 100 38 40 18 16~18 "MMFOIFY 13  0.34