Nfpa 72 Duct Detector Test Switch

Duct detectors smoke detection nfpa 90a code requirements i ve had this question asked of me several times.

Nfpa 72 duct detector test switch.

Nfpa 720 standard for the installation of carbon monoxide co detection and warning equipment 2012 edition. Nfpa 654 standard for the prevention of fire and dust explo sionsfromthemanufacturing processing andhandlingofcombus tible particulate solids 2006 edition. Manual fire alarm boxes ion detectors photo detectors duct detectors heat detectors waterflow switches supervisory switches other specify. Basically a duct detector is a system smoke detector that performs a specific function so you need to test the duct detector as you would any other system smoke detector as well as test to ensure smoke can get to the detector.

27 fire alarm system testing 14 4 testing 14 4 1 2 reacceptance testing changes to site specific software require. Nfpa 72 was a little vague on this until the 2010 edition. Alarm verification feature is disabled enabled. But not sure what you mean by fire alarm device.

Yes and no it is part of the fire alarm system. Yes if the duct detector cannot be reset at the facp or annunciator then a separate test reset station will need to be installed for resetting the duct detector per nfpa 72 section 23 8 5 4 6 4. 100 test of all functions known to be affected by the change additionally 10 of initiating devices that are not directly affected by the change up to 50 devices shall be tested to verify correct system operation. Nfpa 101 life safety code 2012 edition.

1 1 1 nfpa 72 covers the application installation location performance inspection testing and maintenance of fire alarm systems supervising station alarm systems public emergency alarm reporting systems fire warning equipment and emergency communications systems ecs and their components. See nfpa 72 table 6 6 1. Next let s discuss testing duct smoke detectors. 17 4 7 where smoke detectors are installed in concealed locations more than 10 ft 3 0 m above the finished floor or in arrangements where the detector s alarm or supervisory indicator is not visible to responding personnel the detectors shall be provided with remote alarm or supervisory.

Nfpa 72 2013 17 7 4 3 and section 907 3 1 of the 2015 edition of the international fire code states detectors that are installed in the air duct system shall not be used as a substitute for open air protection.