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Working conditions
Dampers are designed for smoke exhaust piping systems with underpressure max. 1500 Pa or
overpressure max. 500 Pa.
Dampers are designed for maximum air velocity 12 m/s.
Dampers are installed with the horizontal or vertical axis of the blades.
Dampers are intended for installation on air ducts and in/onto the walls where in the case of wall installation,
this wall with damper does not have fire resistance and therefore does not separate two fire compartments.
Dampers are suitable for systems without abrasive, chemical and adhesive particles.
Dampers are designed for macroclimatic areas with mild climate according to EN 60 721-3-3.
Temperature in the place of installation is permitted to range from -20°C to +50°C.
Design with actuating mechanism
Belimo actuators are used for dampers, series BEN, BEE, BE for 230V AC resp. 24 V AC/DC.
After connection to the power supply voltage, the actuator moves the damper blade to the "OPEN" position
or "CLOSED" (according to the corresponding connection, see wiring diagram). If the power supply is
interrupted, the actuator stops at the current position. The signalling of the "OPEN" and "CLOSED" damper
blade positions is ensured by two built-in fixed “potential-free” end- limit switches.
The actuator for operating the damper blade is mounted in an insulated cover/box. It is accessible after
removing the cover lid. The electrical connection of the actuator is made with a non-flammable cable (or a
cable located in the adjoining cable duct), which passes through an opening made in the wall of the insulated
cover/box when installing the damper or when connecting the actuator power cable. The cable entry must
meet a minimum fire resistance of 30 minutes.
Belimo modulating actuators, BEN (BEE)-SR series for 24V AC/DC are specially designed for remote control
of fire dampers. The position of the damper blade is adjustable by means of control voltage 0 (2)...10V DC.
The signalling of the "OPEN" and "CLOSED" damper blade positions is ensured by two built-in fixed
“potential-free” limit switches.
The actuator for operating the damper blade is mounted in an insulated cover/box. It is accessible after
removing the cover lid. The electrical connection of the actuator is made with non-flammable cables (or
cables located in the adjoining cable duct), which pass through an opening made in the wall of the insulated
cover when installing the damper or when connecting the power cables of the actuator. The cable entry must
meet a minimum fire resistance of 30 minutes.
Summary of Contents for SEDS-L
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