System Sensor 5621 Detector This component is specifically calibrated

This component is specifically calibrated for compatible Armstrong

contractors ensure exact physical fit and electrical calibration

Always refer to the flow switch manual's "Paddle Sizing Chart" to match the paddle length to your specific GPM requirement

The Maxitrol RV48-1/2 Regulator is a professional-grade appliance gas regulator engineered for precision in residential and commercial gas-fired equipment

This component is rated for a maximum of 30 Amps

System Sensor 5621 Detector This component is specifically calibratedThe System Sensor 5621 is a commercial grade dual circuit mechanical heat detector designed for high reliability fire detection in environments where traditional smoke sensors are prone to nuisance alarms. This 135F fixed temperature and rate of rise heat detector utilizes two independent circuits to trigger both local alarm systems and auxiliary devices like fans or door closers. The Rate of Rise (ROR) element responds to temperature increases