How do I verify the 80W51 is functioning

mandating a manual inspection to ensure system integrity

ensuring the economizer damper blade moves seamlessly from fully open to fully closed

Does this kit include the shaft and seals

Lennox 78F91 Motor 321702-401 How do I verify theThe Lennox 78F91 is a direct drive, multi speed blower motor engineered for consistent performance in residential and light commercial air handlers and furnaces. Operating at 208 230V 1 phase power, this 1 2 HP motor delivers a rated speed of 1075 RPM. As a 3 speed HVAC motor, it allows for precise airflow adjustment to meet specific static pressure requirements, ensuring optimal heat exchange across the evaporator or heat exchanger. This motor