30
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.
Cutting or extending the pipe
A 5-meter pipe is supplied with the air conditioner(optional).
The length of the pipe canbe:
Extended up to : See table page 24
Shorten up to : See table page 24
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 ofthe pipe(see examples of correctly and
incorrectly cut edges below).
Oblique Rough Burr
3
To prevent a gasleak, remove all burrs at the cut edge of the pipe using a
reamer.
4
Put a arenutslightlyinto the pipeandmodify the are.
5
Checkif you ared the pipe correctly (see examples of incorrectly ared pipes
below).
Uneven
Thickness
CrackedDamaged
Surface
Inclined
6
Align the pipes to connect them easily. Tighten the arenuts rst with your
hands,and thenwith a torque wrench, applying the following torque:
7
For further details on how to connect to theoutdoorunit and purge theair,
refer to page 35.
Pipe cutter
Pipe
Indoor outlet pipe Connecting pipe
Flare nut
•
•
•
Tighten the
nut with torque wrench according to method.
• Excessive torque can be cause of gas leakage.
90°± 2°
45°± 2°
R 0.4~0.8
B
Flare
Pipe
Outer Diameter (D) Depth (A) Flaring Size (B)
ø6.35 mm 1.3 mm 8.7 - 9.1 mm
12.8 - 13.2 mm
16.2 - 16.6 mm
19.3 - 19.7 mm
ø9.52 mm 1.8 mm
ø12.70 mm 2.0 mm
ø15.88 mm 2.2 mm
Outer
Diameter
Torque (kgf•cm)
N•m (kgf•cm)
ø6.35 mm 14 ~ 18 140 ~ 180
ø9.52 mm 34 ~ 42 350 ~ 430
ø12.70 mm 49 ~ 61 500 ~ 620
ø15.88 mm 68 ~ 82 690 ~ 830
To Next Page
Loading...
