it effectively compensates for pressure drops across the evaporator

these flanges typically come with one set screw positioned over the keyway to lock the hub securely to the shaft

The York S1-026-19654-705 Blower Wheel is a high-performance centrifugal fan component engineered for precise airflow management in residential and commercial furnace replacement and air handling applications

Technical specifications confirm it replaces legacy part numbers 9000876

Fail-Safe Protection: The spring return mechanism ensures the valve consistently returns to the normally closed position during power failures

Carrier 323745-412 Fan Guard 322027-701 it effectively compensates for pressureThe Carrier 323745 412 Fan Guard is a genuine OEM replacement part designed for high performance condenser units and air handlers. Engineered to replace the legacy 323745 401, this heavy duty HVAC fan grille provides a critical safety barrier and structural protection for the condenser fan motor and blades. Constructed from high tensile steel with a corrosion resistant powder coated finish, it is built to withstand the rigorous outdoor environments