Magnetic Door Release Fire Alarm

One of the earliest methods to release a held open fire rated door was a heat release built as part of the pivot joint on the arm of the door closer photo 1.

Magnetic door release fire alarm.

Panic hardware touch sense bar or latch set with an integral switch which has an obvious method of operation under all lighting conditions and can be operated with one hand. In the event of a power failure they release the door to a closed position to keep the facility secure. Actuation of the fire alarm. They provide a high holding force.

Fire smoke barrier doors door releases when tripped by an alarm or smoke detector private offices door releases when triggered by a remote switch. Fire door retainers also called fire door holders allow occupants to hold fire doors open in a legal and safe manner removing the temptation of wedging the doors open. These devices hold the doors open in the day to day running of the building but will release the fire doors if there is a fire allowing the fire door closers to do their job. The dorgards are great by the way but if the spec is magnetic door retainers they may want them as opposed to dorgards but if its high end property which a flat worth 3 5 mill is id expect a proper fire alarm in tbh a 2 zone panel is cheap enough and will give you the felxibility you need and give you extra income on repairs and servicing.

They must be used in conjunction with closing devices. Electromagnetic door holder releases are designed for virtually any remote door release applications. The fire alarm control panel. These requirements are found in nfpa 72 2013.

If you are using smoke detectors for the purpose of door releasing service than the following code shall apply. Smoke detector installation for fire rated doors and magnetic door holders.