With a ±1% FS accuracy rating

this switch provides reliable circuit interruption to prevent damage to the primary heat exchanger and ensure combustion safety

this switch integrates seamlessly into the water circuit of specific Raypak Digital Atmospheric and Low NOx pool heaters

Key Benefits 1-1/4" NPT high-flow capacity designed for large commercial Raypak heating units

including the 4007

Lochinvar & A.O. Smith 100276822 Cutoff 319852-301 With a ±1% FS accuracyThe Lochinvar & A. O. Smith 100276822 Cutoff is a critical safety component designed for high efficiency hydronic systems, including the Lochinvar FT series and AQUAS Low NOx pool heaters. This low water cutoff utilizes a sophisticated electronic probe to monitor boiler water levels in real time, providing an essential defense against dry firing. Operating on a 24V circuit, the 100276822 features a dual auto manual reset configuration, allowing