Duct smoke detector maintenance requirements are not included in the NFPA standard that covers HVAC systems (NFPA 90A or 90B); however, the International Code Council’s 2015 Mechanical Code does state ...

This article originally appeared in the July 2013 issue of SD&I magazine. Q. If I supervise the duct detector by connecting it to the fire alarm system and it is powered from the FACP, does the HVAC ...

The TDD (true duct smoke detector) is able to detect smoke early on in a ventilation duct without giving false alarms. It checks for optical obscuration. The sensing part of the detector covers as ...

The MSR-100 Series accessories - strobe modules, cover plates, and decals - work with the manufacturer's duct smoke detectors to indicate problems, perform tests, and alert users to alarm conditions.