Early fire detection
In the initial development phase of a fire, the temperature increases only very slightly over a long period of time. The volume of smoke that develops and spreads, however, is very large. As long as the temperature of the smoke near a fire damper remains below 72 °C, the fire damper will stay open.
To prevent smoke from spreading in buildings through the air conditioning system, it is extremely important that the smoke is detected at an early stage. Smoke detectors that operate on the principle of light scattering detect the smoke regardless of its temperature so that the fire dampers can be closed before the release temperature is reached.
