The Utica-Dunkirk 550001873 Blower Wheel is a precision-engineered centrifugal fan component designed for high-static pressure applications within ECR International heating and cooling systems

reducing the risk of internal component overheating during installation

A mid-point ground transformer balances the electrical stress across the secondary windings

verify your specific section assembly via the manufacturer’s parts catalog

technically designated as the SORIT-15 0/100

Belimo IND-AFB Position Indicator 322055-301 The Utica-Dunkirk 550001873 Blower WheelThe Belimo IND AFB Position Indicator is a critical mechanical accessory designed for field installation on AFB and NFB series spring return actuators. Engineered for damper position verification, this indicator provides a clear, high visibility visual reference of the actual shaft position, ensuring precise HVAC system monitoring and easier troubleshooting during routine maintenance. It is specifically compatible with the Belimo AFB24 MFT and NFB24