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Damper bodies are supplied in the standard design made of galvanized plate without any other
surface finish.
Damper blades are made of fire resistant asbestos free boards made of mineral fibres.
Damper controls are made of galvanized materials with no other surface finish.
Springs are galvanized.
Thermal protective fuses are made of sheet brass, thickness = 0.5 mm.
Fasteners is galvanized.
According to the customer's requirements, damper body, control, springs and jointing material
can be made of stainless material.
The appliance is constructed and and preset by the manufacturer, its operation is dependent on
proper installation and adjustment.
Dampers are transported by box freight vehicles without direct weather impact, there must not
occur any sharp shocks and ambient temperature must not 40 °C. Dampers must be
protected against mechanic damages when transported and manipulated. During transportation,
the damper blade must be in the "CLOSED" position.
Dampers are stored indoor in environment without any aggressive vapours, gases or dust. Indoor
temperature must be in the range from -30 °C to +40 °C and maximum relative humidity 95 %
(avoid condensation on the damper body). Dampers must be protected against mechanic
damages when transported and manipulated.
Assembly, maintenance and damper function check can be done only by qualified and trained
person, i.e. “AUTHORIZED PERSON” according to the manufacturer documentation. All works
done on the fire dampers must be done according international and local norms and laws.
All effective safety standards and directives must be observed during fire damper assembly.
Flange and screw joints must be conductively connected to protect against dangerous contact. 2
galvanized fan shape pads that are placed under the head of one screw and a fastened nut are
used for conductive connection.
To ensure reliable fire damper function it is necessary to avoid blocking the closing mechanism
and contact surfaces with collected dust, fibre and sticky materials and solvents.
Summary of Contents for FDMA
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