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 ...

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 ...

Photoelectric smoke detectors have a small light inside. ... If you let the smoke and humidity out through the fan's duct, it'll be less likely to set off your smoke alarm.

With InnovairFlex™ duct smoke detectors, one unit can accommodate multiple installation footprints to overcome mounting constraints — a first for duct smoke detectors. The InnovairFlex ...

The InnovairFlex™ duct smoke detector accessories expand the versatility and usability of the detectors into a wide range of applications. This increased product flexibility enables distributors to ...

Optica’s new Duct Smoke Detector design is built to address the moisture and dust challenges found in the HVAC environment, and provide best-in-class detection that customers can trust. Optica Duct ...

In addition, duct smoke detectors trigger so many nuisance alarms they are often disconnected from the fire alarm panel, leaving correctional officers to act as “fire watch. ” In an ...

Kidde Commercial, an industry renowned company in fire and life safety for over a century, announces the launch of the Optica Duct Smoke Detector, which features a revolutionary new design, ...