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Fire dampers are shutters in ducts of air-conditioning devices that prevent spreading the fire and
combustion products from one fire segment to the other one by means of closing the duct in the
points of fire separating constructions.
Damper blade automatically closes air duct using an actuating mechanism back spring. The back
spring of the actuating mechanism is started when the thermoelectrical starting mechanism BAT
is activated, when a reset button on BAT is pushed or when a power supply of the actuating
mechanism is stopped.
The damper is sealed with a silicon packing against smoke penetration after closing the blade. At
the same time, the damper blade is bed in a material which enlarges its capacity and air proofs
the air duct.
Dampers have one inspection hole, since the shutting device and the inspection hole can be set
into the most advantageous position (with respect to the operation and manipulation with the
control device).
Damper characteristics
• CE certified acc. to EN 15650
• Tested in accordance with EN 1366-2
• Classified acc. to EN 13501-3+A1
• Fire resistance EIS 60
• External Casing leakage class C, Internal leakage class 1 acc. to EN 1751
• Cycling test in class C 10000 acc. to EN 15650
• Corrosion resistant acc. to EN 15650
• Certificate of constancy of performance No. 1391-CPR-0090/2014
• Declaration of Performance No. CDM/FDMC/001/13
• Hygienic assessment of fire dampers - Report No. 1.6/13/16/1
Working conditions
Right damper function is secured under the following conditions:
a) Maximum air circulation speed: 12 m.s
Maximum pressure difference: 1200 Pa
b) Dampers could be displaced into position “CLOSED” only in case that ventilator, or Air
Handling Unit is switched off. The goal is the securing of proper closing and safe
function of Fire Damper in case of Fire.
c) The air circulation in the whole damper section must be secured as steady on whole
surface.
Summary of Contents for FDMC Series
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