Cutting/Extending The Piping - Samsung AS07A5(A6)MA Owner's Instructions & Installation Manual

I I U
NSTALLING THE NDOOR NIT

Cutting/Extending the Piping

36
E-
Five metres(16ft 5in) of piping is supplied with the air
conditioner(Optional). This length can if necessary be:
Extended to a maximum of "L" m/ft.
Shortened as required
If more than 5m(16ft 5in) of piping is required:
The assembly cable must also be extended
Refrigerant must be added to the circuit by an
approved installer; otherwise, the indoor unit may
freeze
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 to
ensure 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 correctly
and incorrectly.
O
90
O
3 To prevent any gas from leaking out, remove all burrs at the cut end of the
pipe, using a reamer.
4 Slide a flare nut on to the pipe and modify the flare.
Pipe
Liquid refrigerant
Gas refrigerant
Gas refrigerant
Gas refrigerant
5 Check that the flaring is correct, referring to the illustrations below for
examples of incorrect flaring.
Inclined Damaged Surface
6 Align the pipes to be connected and tighten the flare nuts first manually
and then with a wrench, applying the following torque.
Pipe
Liquid refrigerant
Gas refrigerant
Gas refrigerant
Gas refrigerant
7 For further details on how to connect up to the outdoor unit and purge the
circuit, refer to page 41.
Oblique Rough
x x
Outer Diameter (D)
6.35 mm(1/4˝)
9.52 mm(3/8˝)
12.70 mm(1/2˝)
15.88 mm(5/8˝)
Cracked
Outer Diameter
6.35 mm(1/4˝) 160kg•cm(11.6ft•lb )
9.52 mm(3/8˝) 300kg•cm(21.8ft•lb )
12.70 mm(1/2˝) 500kg•cm(36.4ft•lb )
15.88 mm(5/8˝) 700kg•cm(50.6ft•lb )
Burr
x
Depth (A)
1.3 mm(1/16˝)
1.8 mm(1/16˝)
2.0 mm(1/16˝)
2.2 mm(1/8˝)
Uneven Thickness
Torque