Carrier LA22RA575 Blower Wheel

The Carrier LA22RA575 Blower Wheel is a precision-engineered centrifugal fan component designed for high-static pressure applications in Carrier, Bryant, and Payne air handlers and furnaces. This 13x11x1/2 blower wheel (often referenced by nominal dimensions of 13x7x7 in specific housing configurations) features a double inlet forward-curved design to maximize CFM output while maintaining structural integrity during high-RPM operation. Fabricated from heavy-gauge galvanized steel with a concave hub and ccw rotation (lead end), this wheel ensures balanced airflow and reduced vibration across the motor shaft. Technicians should verify the bore size and blade pitch to ensure proper static pressure performance and motor load compatibility. This OEM replacement part is critical for restoring system efficiency and preventing premature motor failure caused by unbalanced or fouled impellers. For professional contractors, this direct drive blower wheel provides the exact tolerances required for critical HVACR ventilation and heat exchange cycles.

Key Benefits

• OEM Precision: Correct 13-inch diameter and 11-inch width ensures perfect clearance within the blower housing.
• Galvanized Construction: Resists corrosion and mechanical deformation under continuous thermal cycling.
• Dynamic Balancing: Factory-retained clips minimize harmonic vibration, protecting the blower motor bearings.
• Optimized Airflow: Forward-curved fins provide consistent static pressure across various ductwork configurations.

Common Questions

What causes this blower wheel to fail?
Accumulated debris or moisture often leads to corrosion and imbalance. If the wheel is out of round, it will create excessive noise and eventually damage the motor shaft and mounts.

Which way should the blades face?
The LA22RA575 is a Counter-Clockwise (CCW) rotation wheel when viewed from the lead/hub end. Installing a wheel with the incorrect rotation will severely diminish airflow and trip high-limit switches.

How do I ensure a secure fit on the motor shaft?
Always clean the motor shaft with an emery cloth and ensure the set screw is seated firmly on the flat portion of the shaft to prevent slipping or "wobble" during high-speed operation.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.