ensure there is approximately 3 inches (76 mm) of vertical clearance above the existing pneumatic actuator cover to provide room for the new linkage and electronic drive

This set serves as the official replacement for 218-929

Optimal airflow efficiency provided by a 24-inch diameter and 3-blade configuration to maximize heat rejection

Professional Quality: OEM-grade gasket ensures compatibility and long-term reliability for contractor-level installations

Lochinvar & A.O. Smith 100208251 Transformer Freon ensure there is approximately 3The Lochinvar & A. O. Smith 100208251 Transformer is a critical OEM replacement part designed for high efficiency hydronic systems. This 75VA control transformer steps down 120V primary power to a stable 24V secondary output, providing the necessary low voltage power supply for integrated boiler control boards and secondary circuits. As a direct equivalent to TRF2005 and TRF2005K, this component ensures seamless HVAC voltage conversion and system