E-11
ENGLISH
A 5-meter pipe is supplied with the air conditioner. (Optional)
The length of the pipe can be:
◆ Extended up to 15 (20) meters
◆ Shortened as required
☛ If you need a pipe longer than 5 meters:
◆ You must extend the assembly cable.
◆ You must add refrigerant to the pipes;
otherwise, the indoor unit may freeze.
1 Make sure that you prepared the required tools. (pipe cutter, reamer,
flaring tool and pipe holder)
2 If you want to shorten the pipe, cut it using a pipe cutter ensuring that
the cut edge remains at 90° with the side of the pipe. There are some
examples of correctly and incorrectly cut edges below.
3 To prevent a gas leak, remove all burrs at the cut edge of the pipe
using a reamer.
4 Put a flare nut slightly into the pipe and modify the flare.
Outer Diameter (D) Depth (A)
6.35 mm 1.3 mm
12.70 mm 2.0 mm
15.88 mm 2.2 mm
5 Check if you flared the pipe correctly. There are some examples of
incorrectly flared pipes below.
Inclined Damaged Surface Cracked Uneven Thickness
6 Align the pipes to connect them easily. Tighten the flare nuts first with
your hands, and then with a torque wrench applying the following torque.
Outer Diameter Torque (kgf•cm)
6.35 mm 140~170
12.70 mm 380~420
15.88 mm 440~480
7 For further details on how to connect to the outdoor unit and purge the
air, refer to page 12.
Cutting or Extending the Pipe
xx x x
Oblique Rough Burr
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