Airwell AW-DDV009/007-N11 Betriebs Und Installationsanleitung Seite 12

Installation Procedures
Installation of air-inlet grille
The angle of air-inlet grille should be
parallel with that of air inlet direction,
otherwise it will cause more noise. As
shown in the figure on the right.
Installation of Duct Pipe of Indoor Units:
1.Installation of the air blowing pipe:
With a square blast pipe, the bore shouldn't be less than
the sizes of air outlet pipe.
2.Installation of the air return pipe: Connect one side of
the air return pipes to the air return port of the indoor
units with rivets, with the other side connected to air
return shutter, as shown in Fig. 1.
3. Heat Preservation of Blast Pipes: Heat preservation
lays should be provided for air blowing
& return pipes. Paste glue nails on
the blast pipes and attach thermo
wool,which covered by a layer of silver
paper, fix it with glue nail cover, and
then seal the joint with silver paper.
Selection of fan outlet (when a high-performance filter is used)
The fan has red and white terminals. Its air outlet is set to the standard before delivery. If a high-
performance filter or other optional
devices is used to increase static pressure, it is required to change the connection of connector
on the side of control enclosure as
shown in the following.
Static pressure range Unit: Pa
Correct
Air in
9
Wrong
Air in