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Damper casing are supplied in the design made of galvanized sheet without any other surface
finishing.
Damper blades are made of fire resistant asbestos free boards made of mineral fibres.
Damper controls are made of stainless steel with no other surface finish.
Springs are made of stainless steel.
Thermal protective fuses are made of sheet brass, thickness = 0,5 mm.
Fasteners are galvanized.
According to the customer's requirements damper casing can be finished by color acc. RAL.
The appliance is constructed 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 -5 °C to +40 °C and maximum relative humidity 80 %.
Dampers must be protected against mechanic damages when transported and manipulated.
All effective safety standards and directives must be observed during fire damper assembly.
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.
Before entering the dampers into operation after their assembly and by sequential checks, the
following checks must be carried out.
Visual inspection of proper damper integration, inside damper area, damper blade, contact
surfaces and silicon sealing.
