Always reference the wiring diagram on your specific Reznor unit to ensure proper lead connection and rotation direction

the handle position is fixed to ensure consistent operation according to its design certification

maintaining the original unit's safety certification

This OEM replacement part serves as the communication hub for the economizer system

Is this kit intended for foot-mount or flange-mount setups

Utica-Dunkirk 550003077 Conversion Kit 321702-401 Always reference the wiring diagramThe Utica Dunkirk 550003077 Kit is a field proven HW to HL conversion kit designed to transition specific hydronic boiler systems from Honeywell to Hydrolevel control platforms. As a boiler control upgrade, this kit is essential for technicians managing Utica boiler parts and Dunkirk heating systems where reliable high limit protection and circulation management are required. This gas boiler conversion kit ensures seamless communication between the