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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:
N Extended up to 15 (20) meters
N Shortened as required
☛
If you need a pipe longer than 5 meters :
N You must extend the assembly cable.
N 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.
O
90
O
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)
6.35 mm
12.70 mm
15.88 mm
5
Check if you flared the pipe correctly. There are some examples of
incorrectly flared pipes below.
x
x
Inclined
Damaged Surface
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
6.35 mm
12.70 mm
15.88 mm
7
For further details on how to connect to the outdoor unit and purge the
air, refer to page 12.
Oblique
Rough
x
x
Depth (A)
1.3 mm
2.0 mm
2.2 mm
x
Cracked
Torque (kgf•cm)
140~170
380~420
440~480
Burr
x
x
Uneven Thickness
I
A
NSTALLING THE
IR CONDITIONER
11
E-
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