GIA giatsu PREMIUM R32 Manuel De L'utilisateur Et D'installation page 40

Installation of the Unit
Installation of the Connection Pipe
1. Flare Processing
(1). Cut the connection pipe with the pipe cutter and remove the burrs.
(2). Hold the pipe downward to prevent cuttings from entering the pipe.
(3). Remove the flare nuts at the stop valve of the outdoor unit and inside the accessory bag
of the indoor unit, then insert them to the connection pipe, after that, flare the connection
pipe with a flaring tool.
(4). Check if the flare part is spread evenly and there are no cracks (see Fig.4).
2. Bending Pipes
(1). The pipes are shaped by your hands. Be careful not to collapse them.
(2). Do not bend the pipes in an angle more than 90°.
(3). When pipes are repeatedly bent or stretched, the material will harden, making it difficult
to bend or stretch them any more. Do not bend or stretch the pipes more than three
times.
(4). When bending the pipe, do not bend it as is.
The pipe will be collapsed. In this case, cut the
heat insulating pipe with a sharp cutter as shown
in Fig.6, and bend it after exposing the pipe.
After bending the pipe as you want, be sure to
put the heat insulating pipe back on the pipe, and
secure it with tape.
CAUTION!
● To prevent breaking of the pipe, avoid sharp bends. Bend the pipe with a radius of
curvature of 150 mm or over.
● If the pipe is bent repeatedly at the same place, it will break.
Extend the pipe by unwinding it
12
Fig.5
Heat insulating pipe
Pipe
Cutter
Cutt line
Fig.4
Fig.6