Optimized Airflow Management: Provides precise timing for fan motor activation and shut-off cycles to maintain indoor comfort

extending the longevity of the burner assembly

including the MP909 and MP913 series

The unit is equipped with automatic ball checks that conform to ASME requirements

and ambient air monitoring

Armstrong Fluid Technology 110108MF-397 Bearing Assembly 322057-301 Optimized Airflow Management: Provides preciseThe Armstrong Fluid Technology 110108MF 397 Bearing Assembly is a high performance, all in one replacement kit designed specifically for Series S and H in line circulators. As a critical evolution in HVAC pump repair parts, this maintenance free bearing assembly (SBA) eliminates the need for manual oiling or periodic greasing, significantly reducing operational downtime. This genuine OEM pump replacement kit includes a 4. 5 inch centrifugal impeller,