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| Round fire damper manual 02/2021
SOLID AIR ®
CLIMATE SOLUTIONS
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T +31 598 36 12 21
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www.solid-air.com
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The FDC25 / FDC40 fire damper is always tested in
standardized support frames (both in a rigid wall
and in a flexible wall) in accordance with EN 1366-2:
2015 table 3/4/5. The results obtained are valid for
all similar support frames which have a thickness
and / or density and / or fire resistance similar or
greater than the one on the test.
The duct connected to the fire damper must be sup-
ported or hung in such a way that the damper does
not carry its weight. The damper must not support
any part of the surrounding construction or wall
which could cause damage and consequent damper
failure. It is recommended to connect the damper to
a flexible connection on either end of the damper.
The damper driving mechanism can be placed
on either side of the wall, however it needs to be
placed so that it ensures an easy access during
inspection.
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Mounting is possible with the blade axis in
horizontal or in vertical position.
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The installation must comply with the tests
that were performed during certification.
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Avoid any obstruction of the moving blade by
the connected ducts.
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The class of air-tightness is maintained in
case the installation of the damper is made in
accordance with the technical manual.
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Operating temperature: 50 °C max.
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For indoor use only.
The gap in the installation opening between the fire
damper and the wall/ceiling can be increased by up
to 50 % of the gap area, or decreased to the smallest
dimension that is shown in the table:
Installation in both, vertical and horizontal axis
of rotation of the dampers blade is acceptable
(with the axis angle 0 - 360°).
The fire damper must
be installed into a fire
partition structure
in such a way that
the damper blade in
its closed position is
located inside this
structure (except for
installation with MF1
installation frame).
To help you find the suspension plane, a bendable
hinge is provided on the damper body and the red
tape is placed on the casing to mark the location
of the wall limit. This does not apply for Applique/
MF1/ MF2 kit installations.
Check the operation of the fire damper before
commencing the installation!
3. Installations
Wall limit
Damper size
Ø d (mm)
Opening size
Ø d + A (minimum)
100
Ø d +105 mm
125 - 160
Ø d + 95 mm
200 - 315
Ø d + 80 mm