Nfpa 72 Duct Detector Test Switch

While i am a licensed master hvac contractor i am not a code official but here is my answer.

Nfpa 72 duct detector test switch.

Yes and no it is part of the fire alarm system. 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. 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. See nfpa 72 table 6 6 1.

Next let s discuss testing duct smoke detectors. 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. Duct detectors smoke detection nfpa 90a code requirements i ve had this question asked of me several times. 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.

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. 1 1 2 the provisions of this chapter apply throughout the code unless otherwise. Manual fire alarm boxes ion detectors photo detectors duct detectors heat detectors waterflow switches supervisory switches other specify. Nfpa 72 was a little vague on this until the 2010 edition.

27 fire alarm system testing 14 4 testing 14 4 1 2 reacceptance testing changes to site specific software require. Nfpa 720 standard for the installation of carbon monoxide co detection and warning equipment 2012 edition. Alarm verification feature is disabled enabled. But not sure what you mean by fire alarm device.

Nfpa 101 life safety code 2012 edition.