Magnetic Door Release Fire Alarm

Actuation of the fire alarm.

Magnetic door release fire alarm.

Loss of power to the lock. 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 requirements are found in nfpa 72 2013. Smoke detector installation for fire rated doors and magnetic door holders.

The fire alarm control panel. Electromagnetic door holders and releasers keep doors open until they are released by fire alarm systems remote smoke detectors or other switching devices. In the event of a power failure they release the door to a closed position to keep the facility secure. 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.

They provide a high holding force. They must be used in conjunction with closing devices. If you are using smoke detectors for the purpose of door releasing service than the following code shall apply. Fire smoke barrier doors door releases when tripped by an alarm or smoke detector private offices door releases when triggered by a remote switch.

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. Electromagnetic door holder releases are designed for virtually any remote door release applications.