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The POTTER ELECTRIC SIGNAL CO. US PL-1430050 is a duct smoke detector designed to sense smoke within HVAC ductwork and trigger a system response before smoke spreads through a building. Duct detectors are a critical component of fire and life safety systems, mounted directly into supply or return air ducts to monitor airflow for combustion byproducts. This unit is listed under the SM-501-P product line and is intended for installation by licensed fire alarm technicians or qualified HVAC professionals working on commercial or light commercial air handling systems.
Duct smoke detectors of this type are used in commercial HVAC applications where building codes require detection within air distribution systems. They are typically installed in air handling units, rooftop units, and large-scale duct systems to shut down fans or activate fire dampers upon detection. This part falls under the Fire Power Accessories category and is sold as a single unit.
Designed as an OEM-style replacement duct smoke detector for commercial HVAC fire alarm system applications. No specific compatible model numbers or system families were provided in the available product data.
Installation should be performed by a licensed fire alarm technician in accordance with NFPA 72 and local fire codes. Power down and lock out the affected air handling unit and fire alarm control panel circuit before beginning installation. Follow the manufacturer product manual for sampling tube insertion depth and airflow orientation. Do not restore power until all wiring connections have been verified and the detector has been tested per the applicable inspection and testing standard.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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