2
TPM 092/13
Fig. 1 Fire damper FDMD, design .01 - damper with inner
mechanical control
Fig. 3 Fire damper FDMD, design .01v2 - damper with
outer mechanical control and mechanical control
cover
Fig. 4 Fire damper FDMD, design with actuating
mechanism
II. GENERAL INFORMATION
1. Description
Fig. 2 Fire damper FDMD, design .01v1 -
damper with
outer
mechanical control
1.1.
Fire dampers are shutters in duct systems 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 air
duct in the points of fire separating constructions.
Dampers blade automatically closes air duct using a shutting spring or an actuating mechanism
back spring. The back spring of the actuating mechanism is started when the thermoelectrical
starting mechanism BAE 72B-S is activated, when a reset button on BAE 72B-S 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 bedded 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).
