Utica-Dunkirk 550000619 Blower Wheel Kit 318518-761 This usually indicates the switch

This usually indicates the switch has detected a vacuum higher than -1

For a permanent override

Engineered for high-recovery commercial and residential atmospheric vent units

This cartridge is designed for use with Sporlan’s Type Q conventional port and Type BQ balanced port valve bodies

this three-phase motor offers reliable rotation and high starting torque to handle high-static conditions without compromising the system's energy efficiency or operational noise levels

Utica-Dunkirk 550000619 Blower Wheel Kit 318518-761 This usually indicates the switchThe Utica Dunkirk 550000619 Blower Wheel Kit is an essential OEM replacement component designed for precision airflow management in high efficiency gas fired boilers. This double inlet centrifugal blower wheel is engineered to maintain the strict static pressure requirements necessary for consistent combustion air delivery and flue gas venting. Manufactured for durability, the 550000619 blower wheel features dynamically balanced blades to minimize