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Enhanced Durability: Robust blade geometry maintains airflow stability under varying combustion assembly pressures
and a pipe stop to prevent over-threading
also identified by the 42AF35AF part number
Electrical Reliability: High-performance SPST contacts provide consistent electrical continuity for the control board signal
Lochinvar & A.O. Smith 100166325 Pump 322838-753 Enhanced Durability: Robust blade geometryThe Lochinvar & A. O. Smith 100166325 Pump Less Volute is a heavy duty centrifugal circulator pump component engineered for high efficiency commercial water heating systems. This replacement pump motor and impeller assembly is designed for rapid integration into existing volutes, minimizing downtime during critical hydronic repairs. Built with a high torque motor and precision balanced impeller, it maintains optimal flow rates in Lochinvar Knight and