Mandik FDMB Installation Instructions Manual page 22

7. The fire damper can be integrated into a solid or gypsum wall construction or into solid ceiling construc-
tion. Damper blade has to be inside of construction (labelled with min. or max. BUILD IN EDGE on the
damper body). The fire damper can also be integrated outside the wall construction. Duct and the damper
part between the wall construction and the damper blade (labelled with min. or max. BUILD IN EDGE on
the protective covering) must be protected with fire-fighting insulation.
Built-in edge minimal
Built-in edge maximal
Built-in edge
Maximal
8. All fire dampers has to be closed during installation process. The damper body should not be deformed
in the course of bricking in. Once the damper is built in, its blade should not grind on the damper body
during opening or closing.
9. To provide needed access space to the control device, all other objects must be situated at least 350 mm
from the control parts of the damper. Inspection hole must be accessible.
Placement of the openings in the wall
10. Damper blade overlaps.
Overlaps of square dampers
Built-in edge
Minimal
Built-in edge minimal
Built-in edge maximal
min. 200
min. 75
Built-in edge minimal
Built-in edge maximal
Built-in edge
Maximal
min. 200
Overlaps of round dampers
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Built-in edge
Minimal
Built-in edge minimal
Built-in edge maximal
min. 75