Manual selection, installation and maintenance
51
Roof-top units -
RTE series
-
max mm 25
A
max 7°
min 2.5 A
Aeraulic connections
For the installation of the ducts we
recommend to:
- provide for adequate brackets to sup-
port the ducts so that their weight does
not fall on the unit;
- connect the supply and return vents to
the ducts with an antivibration canvas.
This canvas will be connected to the
unit by screwing it to the flange or to the
damper if present. In case the flange or
the damper are not present, teh antivi-
bration canvas will have to be screwed
to the frame of the unit;
- provide for an earth cable to act as a
bridge on the antivibration canvas, in
order to grant equal electrical capacity
between the duct and the unit;
- provide, before curves, forks etc., for
the supply duct to have a straight chan-
nel of at least 2.5 times the shorter side
of the duct, in order to avoid performan-
ce falls of the fan;
- avoid that the ducts have inclinations
of sections superior to 7°C.
