2 3 general description.
Duct smoke detector installation.
5 4 secure the duct detector to the duct use two rectangular configuration or three square configuration of the pro vided sheet metal screws to screw the duct detector to the duct.
This photoelectronic detector mounts externally to the duct with intake and exhaust sampling tubes penetrating into the duct.
E pdd duct smoke detector installation sheet operation the duct smoke detector s primary purpose is to provide early warning of an impending fire and shut down the hvac unit in order to prevent smoke from circulating throughout the building.
Nor should it serve as an early warning detection system.
Installation of duct detectors can be on or within a commercial packaged rooftop heating and air conditioning system fire smoke damp ers and economizers.
2 4 contents of duct smoke detector kit.
6 sampling tube installation ing out of the duct select a shorter tube using 6 1 sampling tube selection.
With power source de energized and the smoke detector not installed wire all connections per engineering drawings.
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Energize the duct detector.
With all wiring in place install the detector head.
This detector is recommended for ducts 6 inches and wider with duct velocities within the 500 fpm to 4000 fpm range.
Installation and maintenance instructions.
1 2 exploded view of duct smoke detector components.
Nfpa 90a 2012 a 6 4 makes this pretty clear by stating.
We will show you how to wire a system sensor duct smoke detector to a carrier bryant or icp furnace and then configure it s communicating infinity evoluti.
The installation of smoke detectors and other related requirements is intended to prevent the distribution of smoke through the supply air duct system and preferably to exhaust a significant quantity of smoke to the outside.
Duct detectors smoke detection installation furthermore intentions for using duct smoke detectors should not be a substitute for area smoke detectors.
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The duct smoke detector is designed for use in duct.
Do not overtighten the screws.