GIA giatsu PREMIUM R32 Manuel De L'utilisateur Et D'installation page 51

Installation Instructions
CAUTION!
● Prior to the installation, please make a good preparation for all piping (refrigerant pipe,
drain pipe) and wring (wires of the wired controller, wires between the indoor and outdoor
unit) of the indoor unit to make the further installation much easy.
● If there is an opening in the ceiling, it is better to reinforce it to keep it flat and prevent it
vibrating. Consult the user and builder for more details.
● If the strength of the ceiling is not strong enough, abeam made of angle iron can be used
and then fix the unit on it.
● If the indoor unit is not installed in the air conditioning area, please use sponge around the
unit to prevent condensing. The thickness of the sponge depends on the actual installation
environment.
Installation of the Connection Pipe
a. 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.9).
b. Bending Pipes
1. The pipes are shaped by your hands. Be careful not to collapse them.
Extend the pipe by unwinding it
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Fig.9
Fig.10