Potter Electric CF-135W Fixed Temp Heat Detector 135F

Product Description

The POTTER ELECTRIC SIGNAL CO. US CF-135W is a fixed temperature heat detector designed for fire detection applications in commercial and residential buildings. It activates when ambient temperature reaches 135 degrees F, triggering the alarm circuit without relying on smoke or combustion byproducts. The CF-135W is a ceiling-mount thermal detector sold individually and is typically installed by licensed fire alarm technicians or electricians working under local fire code requirements. It suits applications where smoke detectors are not appropriate, such as kitchens, garages, and utility spaces.

Fixed temperature heat detectors like the CF-135W are commonly deployed in areas with high ambient dust, steam, or fumes that would cause nuisance trips in photoelectric or ionization smoke detectors. Typical installations include commercial kitchens, boiler rooms, attached garages, and laundry areas. The unit mounts to a standard electrical box and connects to a conventional or addressable fire alarm control panel depending on system design.

Key Features

• Fixed temperature activation threshold of 135 degrees F for reliable heat-based detection
• Suitable for environments where smoke detection is impractical due to dust, steam, or fumes
• Sold as a single unit for individual zone or replacement installations
• Thermal detection method eliminates false alarms caused by airborne particles
• Compact design for standard ceiling box mounting

Compatibility

Designed as an OEM-style replacement or new-installation thermal detector for conventional fire alarm systems requiring a fixed temperature heat detector at the 135 degrees F rating.

Installation Notes

Installation must be performed by a qualified fire alarm technician or licensed electrician in accordance with NFPA 72 and applicable local fire codes. De-energize the fire alarm control panel circuit before wiring the detector to avoid false activations or equipment damage. Verify the panel zone is compatible with the detector type before installation. Follow the manufacturer data sheet for wiring termination and end-of-line resistor requirements.