Hydrolevel 550SV Fuel Smart Hydrostat Temperature Limit steam The Carrier HH19ZA940 is a

The Carrier HH19ZA940 is a high-performance auto limit switch that serves as a critical component in HVAC systems

This product is designed to improve air return efficiency in residential HVAC systems by providing a well-insulated and durable channel for air circulation

Collection: Snap Disc Fan and Limit Controls

This gas valve is suitable for both natural and LP gas

Reliable operation in harsh industrial environments

Hydrolevel 550SV Fuel Smart Hydrostat Temperature Limit steam The Carrier HH19ZA940 is aProduct Description The Hydrolevel 550SV Fuel Smart Hydrostat Temperature Limit is designed for use in heating and cooling systems. It offers low water cut off functionality paired with temperature regulation. This unit includes a manual reset feature, test button, and light. It comes equipped with a short EL1214 Sv probe and replaces the OEM 170Mcsv 45 551. Low water cut off functionality Temperature regulation Manual reset feature Product Highlights