Cutting/Extending The Piping - Samsung AD18A1C09 Owner's Instructions & Installation Manual

Cutting/Extending the Piping

Five metres of piping is supplied with the air conditioner(Optional).
This length can if necessary be:
Extended to a maximum of ten metres
Shortened as required
If more than five metres 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.
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
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
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") 1.3 mm (5/100")
9.52 mm (3/8") 1.8 mm (7/100")
12.70 mm (1/2") 2.0 mm (8/100")
Cracked Uneven Thickness
Outer Diameter Torque (kg•cm)
6.35 mm (1/4") 160 (11 ft•lb)
9.52 mm (3/8") 300 (21 ft•lb)
12.70 mm (1/2") 500 (36 ft•lb)
Burr
x
Depth (A)
3
5
3
4
2
5
I I U
NSTALLING THE NDOOR NIT
35
E-