Fasco A171 Blower Motor 322838-754 single-groove BK90H Sheave engineered for

single-groove BK90H Sheave engineered for precision power transmission in commercial air handlers and ventilation systems

Both models share the same technical specifications

Use the 1/8" NPT taps located on either side of the valve body to dial in the minimum firing rate while the solenoid is de-energized

this high-grade industrial tubing is critical for the accurate transmission of air pressure signals between the draft inducer motor and the pressure switch assembly

Professional technicians should always inspect the fan blade for balance issues and replace the capacitor during motor swaps to prevent premature winding failure and ensure the steady 0

Fasco A171 Blower Motor 322838-754 single-groove BK90H Sheave engineered forThe Fasco A171 Blower Motor is a high performance centrifugal blower assembly designed specifically for demanding HVAC applications, including use as a Lennox 7021 9450 replacement motor. Running on a standard 115V 60Hz single phase power supply, this PSC (Permanent Split Capacitor) motor operates at a dedicated 3000 RPM single speed, delivering approximately 110 CFM of airflow. The unit features Class B insulation and is thermally protected to handle