Hydrolevel 550SVR Low Water Cut-Off 320720-756 Precise Flame Detection: Optimizes the

Precise Flame Detection: Optimizes the flame rectification circuit to ensure the control board receives a clear microamp signal

features a fixed temperature range of 150-190F with an automatic reset function

you can use the terminals that close on a temperature rise to activate exhaust fans or cooling equipment when the setpoint is exceeded

while the 1/4-inch quick-connect terminals facilitate a secure electrical interface during installation

Hydrolevel 550SVR Low Water Cut-Off 320720-756 Precise Flame Detection: Optimizes theThe 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