System Sensor BEAMHKR Beam Detector Heater Kit with Reflector
Overview
The BEAMHKR is a heater kit with reflector assembly designed to support System Sensor BEAM1224 series projected beam smoke detectors in cold environments. The reflector component is essential for single-ended reflected-beam operation—it returns the transmitted signal back to the detector unit, allowing smoke detection across large open areas (16 ft. to 328 ft. spans) where traditional spot-type detectors are impractical. The heater kit maintains detector responsiveness in sub-freezing conditions, extending operational temperature range downward from the detector's standard –22°F to 131°F baseline. This accessory is necessary for installations in unheated warehouses, loading docks, parking structures, and other harsh-environment spaces where ambient temperature regularly drops below freezing and would otherwise degrade optical alignment or sensor response.
Compatibility
The BEAMHKR kit is designed for use with the System Sensor BEAM1224 series four-wire projected beam smoke detector. The BEAM1224 is UL-listed (Standard 268) and compatible with any UL-listed fire alarm control panel providing 15–32 VDC power. The BEAMHKR operates at 32VDC, matching the upper end of the BEAM1224's power range, ensuring proper heater operation without straining panel capacity. Verify that your fire alarm control panel or power supply explicitly supports the BEAM1224 series and can deliver the combined current draw of the detector and heater kit; panel documentation will confirm maximum device ratings.
Installation Notes
Mount the reflector at the far end of the detection path, aligned with the BEAM1224 transmitter/receiver unit using the detector's integral optical sight and signal-strength meter. The heater kit wiring integrates with the four-wire BEAM1224 circuit; follow the BEAM1224 installation manual for wiring schematics and terminal assignments. The reflector must be positioned perpendicular to the beam path to maximize signal return. In high-dust or high-air-movement environments, clean the reflector optics quarterly to prevent signal degradation that could trigger false alarms or mask genuine smoke.
