Hydrolevel 550SV M/R Low Water Cut-Off W/Manual Reset Test & Lite 120V

The Hydrolevel 550SV Low Water Cut-Off with Manual Reset 120V serves as a boiler protection system by measuring water levels to stop dry firing events. This operates with steam and hot water boilers to shut down burner when water levels reach dangerous low points thus protecting equipment from damage and overheating. A manual reset function built into this unit enables both safety control measures. The unit improves system reliability while decreasing maintenance expenses and extending boiler operational life to become a critical component for safe HVAC operation.