page no. 19 of 36
Vision Maxi
User Instructions Doc Ref M609 issue 1.0 June 2021.
Positioning outside air dampers
Before proceeding with the installation of the external air
dampers, it is necessary to discern the one to be positioned
on the air intake from the one intended for the expulsion.
The dampers are identified with the labels:
IN:
air intake damper
OUT:
air delivery damper
Use only the dampers supplied with the unit.
1.
Paper template
2.
Air intake damper
3.
Air expulsion damper
IN
OUT
1
2
3
IN
OUT
A
Chain
B
Counterflange
C
Spring
D
External air damper
1
2
3
4
– fold the damper
– insert it in the duct until it comes out on the other side of
the wall
– hold the chains with the other hand so that the damper
does not fall
– open the damper outside of the hole
– rotate the damper so that the flaps are in vertical position
– insert the counterflange in the hole toward the interior of
the room
– rotate it so that the hooks are in vertical position
– pull the chains so that the springs are in tension
– hook the chains to the counterflange
– cut off the excess of chain
When painting the dampers, use water-based paints
suitable for plastic surfaces to avoid problems with the
move-ment of the flaps.
Do not use thick, sticky paints like enamels.
Fixing the bracket
The devices are provided with metallic support for mounting
on the wall.
1.
Spirit level
2.
Metal support
3.
Fixing screw
4.
Support wall
5.
Expansion plug
1
4
3
2
5
2
– use the paper template
– mark the positions of the fixing holes
– use a drill
– mark the position of the mounting holes
– fix the metallic support with the screws and the wall plugs
Place the metallic support on a level surface that is capable
of supporting its weight.
Check that the installation is horizontal using a water level.