Utica-Dunkirk 550002858 Aquastat Refrigerant Always match the temperature range

Always match the temperature range and reset type to the original technical specifications in the heater manual

Technicians typically observe weak or intermittent sparking across the electrode tips

Optimized Flow: Reduces mechanical resistance within the valve chamber

With an adjustable differential of 6 to 24 degrees

Debris Management: Robust 40-micron filtration ensures that even microscopic particulates are trapped before entering precision metering devices

Utica-Dunkirk 550002858 Aquastat Refrigerant Always match the temperature rangeThe Utica Dunkirk 550002858 Aquastat is a heavy duty SPST immersion aquastat designed for accurate limit or regulation control of water temperatures in hydronic heating systems. Specifically engineered for Utica and Dunkirk boiler systems, this OEM component operates across a 110F to 200F range to maintain optimal thermal stability. As a 240007710 retrofit kit equivalent, it is the primary replacement for obsolete 146 62 025 and L7148F1042 controls.