A device for controlling a damper(10) for ventilation comprises first, second, third, and fourth limiter switches(17,18,19,20), a cutoff plate(5), an arc ground protrusion(16a), and a multi-step switch. The first and the second limiter switches are fixed to a circuit board(11) to ...
() also comprises a temperature sensor () for measuring the air temperature value (T), a gas sensor () for measuring the content (G) of fumes in the air, and a switch module (), which interrupts the power supply depending on the air temperature value (T) and the content (G) of ...
(safe position), the limit switch indicates this position. If the damper blade is closed (failsafe), the limit switch sends an impulse to the monitoring system. This system triggers an alarm and/or stops/starts fans, depending on the designed system. The limit switch has no influence on ...