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The POTTER ELECTRIC SIGNAL 302-epm-194 is a rate-compensated heat detector designed for reliable, temperature-based fire detection in commercial, industrial, and mechanical environments. It activates at a fixed threshold of 194 degrees F, making it well suited for spaces with elevated ambient temperatures where standard smoke detection is not appropriate. The rate-compensated sensing element responds quickly to rising heat conditions, including gradual temperature increases, helping to reduce both nuisance activations and delayed response. The detector is built to resist corrosion, moisture, and vibration for dependable performance in demanding locations.
This heat detector is intended for use in commercial and industrial fire alarm systems where high ambient temperatures or airborne contaminants would compromise smoke-based detection. Typical installations include mechanical rooms, boiler rooms, attics, kitchens, and manufacturing areas. It covers up to 1600 square feet in open ceiling applications, making it practical for large bays or open-plan commercial spaces. The unit mounts to standard electrical junction boxes, simplifying integration into new or existing fire alarm panel wiring.
Designed as an OEM-style replacement or new-installation heat detector for conventional and addressable fire alarm systems that support fixed-temperature rate-compensated initiating devices.
Heat detectors of this type are installed by licensed fire alarm technicians in accordance with NFPA 72 spacing and placement requirements. Shut down and lock out the fire alarm panel circuit before wiring the device. Follow the panel manufacturer wiring documentation for proper initiating device loop connections. Confirm ceiling height and obstructions against NFPA 72 spacing tables before finalizing detector placement to ensure the rated coverage area is valid for the specific installation geometry.
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