GIA giatsu PREMIUM R32 Manuel De L'utilisateur Et D'installation page 52

Installation Instructions
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.11, 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.
c. Connecting the Pipe at the Indoor Unit Side
Detach the caps and plugs from the pipes.
CAUTION!
● Be sure to apply the pipe against the port on the indoor unit correctly. If the centering is
improper, the flare nut cannot be tightened smoothly. If the flare nut is forced to turn, the
threads will be damaged.
● Do not remove the flare nut until the connection pipe is to be connected so as to prevent
dust and impurities from coming into the pipe system.
Centering the pipe against port on the indoor unit, turn the flare nut with your hand.
CAUTION!
Hold the torque wrench at its grip, keeping it in the right angle with the pipe as shown in Fig. 12,
in order to tighten the flare nut correctly.
Holding spanner
Torque wrench
Fig.12
16
Heat insulating pipe
Pipe
Cutter
Cutt line
Fig.11