RDT-43-0921
39
®
NORD
fire
|
FDMA-PM
Images are for illustrative purposes
We reserve the right to make changes
The leaf of the damper is made from a single piece of homogeneous material Promatect-MST,
thickness 40 mm.
Plastic, rubber and silicon components, sealants, foaming bands, glass-ceramic seals, hous-
ings, brass bearings of the leaf, servo drives, and end switches are identical for all material
variants of the dampers.
The thermal link is identical for all material variants of the dampers. Upon specification by
customer, the thermal link may be made from A4 stainless steel. The solder is standard,
corresponding to the initialisation temperature.
The temperature-dependent initiator of the servo drive (sensor) is modified for stainless-steel
variants of the dampers; the standard galvanised screws are replaced with stainless-steel M4
screws of corresponding class the counterpart has stainless-steel riveting M4 nuts.
Some fasteners and components are available in one class of stainless steel; the type will be
used in all stainless-steel variants.
The leaf in the variants for chemical environments (Class A4) is always treated with a coating of
chemically resistant Promat SR.
Any other requirements for the design shall be considered atypical and shall be addressed on an
individual basis.
11. Inspection, testing
11.1 The appliance is constructed and preset by the manufacturer, its operation is dependent on
proper installation and adjustment.
12. Logistics terms
12.1 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 transporta-
tion, the damper blade must be in the "CLOSED" position.
12.2 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.
13. Assembly
13.1 All effective safety standards and directives must be observed during fire damper assembly.
13.2 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.
IX. Inspection, testing
IX. Transportation and storage, warranty
IX. Assembly, attendance, maintenance and revisions
