Automatic Fire Door Release

When detection occurs the result is the mechanical or electromagnetic release of the door s.

Automatic fire door release.

Fire door release devices in case of an emergency it s critical to have equipment you can count on. Or the actuation of an alarm by a manual fire alarm call. Liftmaster s fire door release devices provide the ultimate reliability exactly when it s needed. The automatic releasing mechanism or medium is activated by the operation of approved smoke detectors.

All automatic door releases should be triggered by each or any of the following. The detection of smoke by an automatic detection. For use with motorized doors incorporating a reversing electric safety edge. Doors are automatic and self closing through an isolating governing release system rated 4 3 1 1 2 3 4 or oversized certificate.

Upon release of the hold open mechanism the leaf becomes self closing. No matter what the automatic means of smoke fire detection you use the release of one or more smoke doors is usually accomplished through an electromechanical device that holds the doors open until smoke is detected. The release device is designed so that the leaf instantly releases manually and upon release becomes self closing or.