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Cutting or extending the pipe
A 5-meter pipe is supplied with the air conditioner (optional).
The length of the pipe can be:
•
Extended up to : See table page 24
•
Shorten up to : See table page 24
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 have the required tools (pipe cutter, reamer, aring 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 (see 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 are nut slightly into the pipe and modify the are.
Outer Diameter (D)
ø6.35 mm
ø9.52 mm
ø12.70 mm
ø15.88 mm
5
Check if you ared the pipe correctly (see examples of incorrectly ared pipes
below).
Inclined
6
Align the pipes to connect them easily. Tighten the are nuts rst with your
hands, and then with a torque wrench, applying the following torque:
Outer
Diameter
ø6.35 mm
ø9.52 mm
ø12.70 mm
ø15.88 mm
7
For further details on how to connect to the outdoor unit and purge the air,
refer to page 35.
•
Tighten the
30
Oblique
Rough
Depth (A)
Flaring Size (B)
1.3 mm
8.7 - 9.1 mm
1.8 mm
12.8 - 13.2 mm
2.0 mm
16.2 - 16.6 mm
2.2 mm
19.3 - 19.7 mm
Damaged
Cracked
Surface
Torque (kgf•cm)
N•m
(kgf•cm)
14 ~ 18
140 ~ 180
34 ~ 42
350 ~ 430
49 ~ 61
500 ~ 620
68 ~ 82
690 ~ 830
nut with torque wrench according to
Burr
Pipe
Pipe
Flare
Uneven
Thickness
Indoor outlet pipe
• Excessive torque can be cause of gas leakage.
method.
Pipe cutter
90°± 2°
B
R 0.4~0.8
Flare nut
Connecting pipe
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