Cutting Or Extending The Pipe - Samsung AS09USeries User & Installation Manual

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
•
Shortened 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
• Excessive torque can be cause of gas leakage.
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)
1.3 mm
1.8 mm
2.0 mm
2.2 mm
Damaged Cracked
Surface
Torque (kgf•cm)
140~170
250~280
380~420
440~480
nut with torque wrench according to
Burr
Pipe
Pipe
Uneven
Thickness
Indoor outlet pipe
method.
Pipe cutter
Flare
Flare nut
Connecting pipe