Five metres of piping is supplied with the air conditioner(Optional).
This length can if necessary be:
◆
Extended to a maximum of 10(15) 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.
Oblique
Rough
Burr
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
Outer Diameter (D)
Depth (A)
Liquid refrigerant
6.35 mm
1.3 mm
Gas refrigerant
9.52 mm
1.8 mm
Gas refrigerant
12.70 mm
2.0 mm
5
Check that the flaring is correct, referring to the illustrations below for
examples of incorrect flaring.
Inclined
Damaged Surface
Cracked
Uneven Thickness
6
Align the pipes to be connected and tighten the flare nuts first manually
and then with a wrench, applying the following torque.
Pipe
Outer Diameter
Torque (kg•cm)
Liquid refrigerant
6.35 mm
160
Gas refrigerant
9.52 mm
300
Gas refrigerant
12.70 mm
500
7
For further details on how to connect up to the outdoor unit and purge the
circuit, refer to page 15.
Cutting/Extending the Piping
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11
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ENGLISH
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Summary of Contents for 12A1VB
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