responding to 2-10VDC speed signals for dynamic airflow management

Using an incorrect voltage source or an AC supply without a proper controller will damage the internal electronics

it may have weakened over time and should be replaced to ensure system reliability

ensuring the positive expulsion of flue gases

Constructed with corrosion-resistant carbon steel

Hydrolevel 550SVR Low Water Cut-Off THPU32HP7Y responding to 2-10VDC speed signalsThe Hydrolevel 550SVR Low Water Cut Off is a professional grade safety control designed to prevent dry firing in 120Vac gas or oil fired boilers. This Safgard 550SVR LWCO features a 30 second delay to filter out nuisance shutdowns from temporary water surges, ensuring the burner circuit only locks out during sustained low water events. As a secondary control for steam boilers or a primary limit for hot water systems, it meets ASME CSD 1 requirements