Cutting/Extending The Piping; Connecting The Cables To The Outdoor Unit - Samsung RJ040F2HX Series Installation Manual

A C utting/extending the piping
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 piping, cut it using a pipe cutter, taking care toensure that the cut edge remains at a 90° angle with the side of
the pipe,and referring to the illustrations below for examples of edges cut correctlyand incorrectly.
3. To prevent any gas from leaking out, remove all burrs at the cut end of thepipe, 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 to be connected and tighten the flare nuts first manually andthen with a torque wrench, applying the following torque.
Outer Diameter (D)
ø6.35 mm(1/4")
ø9.52 mm(3/8")
ø12.70 mm(1/2")
ø15.88 mm(5/8")
7. For further details on how to connect up to the outdoor unit and purge the circuit, refer to page 19.
In case welding the pipe, the gas nitrogen must be blown into the parts.

Connecting the cables to the outdoor unit

12
Oblique
Outer Diameter (D)
ø6.35 mm(1/4")
ø9.52 mm(3/8")
ø12.70 mm(1/2")
ø15.88 mm(5/8")
Correct Inclined Damaged
Surface
Thickness Torque (kgf·cm)
0.8mm 140~170
0.8mm 250~280
0.8mm 380~420
0.8mm 440~480
Rough Burr
Thickness Depth (A)
0.8mm 1.3 mm
0.8mm 1.8 mm
0.8mm 2.0 mm
0.8mm 2.2 mm
Cracked Uneven
Thickness