Door Holder With Smoke Detector

Holder release devices ansi bhma certified.

Door holder with smoke detector.

Smoke detector placement for fire rated doors and magnetic door holders there are a few things to keep in mind when installing smoke detectors for magnetic door holder releasing. For this information we must consult the standards found in nfpa 72 2013. The number of smoke detectors required and all of the spacing requirements found in sections 17 7 5 6 2 through 17 7 5 6. Fire smoke barrier doors door releases when tripped by an alarm or smoke detector private offices.

Where the release of the door takes place exclusively from the smoke detector using internal relay contacts a nationally recognized testing laboratory must have tested and listed the detector for releasing device service. 17 7 5 6 2 smoke detectors that are used exclusively for smoke door release service shall be located and spaced as required by 17 7 5 6. They provide a high holding force. The development of national fire protection association 101 life safety code and smoke detection technology required that smoke detectors release the door holders instead of fusible links.

Below we have broken down a few code sections from chapter 17 to help clear up any confusion. The 1800 series is an electromagnetically controlled door closer available with or without integral smoke detector power supply for use on fire and or smoke barrier doors. For example if the depth of wall section above the door is 24 in. They must be used in conjunction with closing devices.

Holder release device with integral door closer with or without smoke detector. In the event of a power failure they release the door to a closed position to keep the facility secure. Or less nfpa 72 requires one ceiling mounted detector on either side or one wall mounted detector on each side.