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
x
x
x
x
Oblique
Rough
Burr
90
O
O
x
x
x
I
NSTALLING THE
A
IR CONDITIONER
AQT18WJWB IM_E_20227 10/25/04 1:34 PM Page 11
