How do I verify if this blower wheel fits my specific furnace model

000 BTU/HR

Technicians should use a digital multimeter in series with the sense wire to measure the DC microamp (µA) signal while the burner is active

Can I use an auto-reset switch instead of this manual reset version

Calibrated for 150°F cut-out

Lennox 98M19 Fan Blade Els PW 17895 How do I verify ifAs a veteran HVAC technician, I know that maintaining precise airflow is non negotiable for system longevity. The Lennox 98M19 Fan Blade is a genuine OEM condenser fan blade replacement engineered for high static pressure environments. This 18 inch 4 blade fan features a 27 degree pitch and is balanced to eliminate the vibration issues that commonly lead to premature motor bearing failure. Designed for CCW rotation (counter clockwise facing