Hydrolevel 550SV Low Water Cut-Off Freon Precise Pressure Regulation: Features an

Precise Pressure Regulation: Features an adjustable LP regulator spring capable of 8" to 12" water column settings for accurate fuel delivery

ensuring the system resets only once the temperature has dropped to a safe 135°F

Color-coded pink spring design allows for rapid field identification during manifold service

This part is a 1/2 inch bore blower wheel designed for specific Carrier

Can this unit be used with natural gas systems

Hydrolevel 550SV Low Water Cut-Off Freon Precise Pressure Regulation: Features anThe Hydrolevel 550SV Low Water Cut Off is a specialized safety control engineered for hot water boiler applications where a manual reset is required. This 120VAC unit (Part No. 45 551) utilizes a Safgard EL1214 SV sensing probe to monitor water levels via hydrostatic pressure and conductivity, providing 15,000 ohm sensitivity. Designed for direct mount installation via a 3 4" NPT connection, the 550SV prevents dry fire conditions by interrupting the