Carrier LA22ZA120 Blower Wheel

The Carrier LA22ZA120 Blower Wheel is a high-performance OEM centrifugal blower wheel engineered for precise airflow in residential and light-commercial HVAC systems. This 11 inch x 11 inch blower wheel (nominal) features a 1/2 inch bore with a set screw hub for secure mounting to the motor shaft. Constructed from durable galvanized steel, it utilizes 53 concave, forward-curved blades to maximize static pressure and efficiency. Designed as a direct-fit component for select Carrier, Bryant, and Payne air handlers and furnaces—including the 310AAV060155AAJA—the LA22ZA120 ensures a balanced rotation to reduce vibration and operational noise. When replacing a worn or out-of-balance furnace blower wheel, this genuine Carrier blower wheel restores factory-spec airflow, preventing motor strain and short-cycling. Always verify clockwise (CW) rotation and bore size before completing your repair to ensure compatibility with your existing blower assembly and scroll housing.

Key Benefits

• Direct OEM Replacement: Ensures a perfect fit and factory-standard performance in compatible Carrier HVAC systems.
• Precision Balance: The 11x11 blower wheel is engineered to minimize vibration, extending the service life of the blower motor and housing.
• Optimized Airflow: Centrifugal design with forward-curved blades provides consistent static pressure for efficient climate control.
• Rugged Construction: Fabricated from corrosion-resistant steel to withstand high-demand heating and cooling cycles.

Common Questions

What are the signs that my blower wheel needs replacement?
Loud vibrating noises, rattling, or reduced airflow from vents often indicate an imbalanced or damaged blower wheel squirrel cage. Physical inspection may reveal bent fins or debris buildup that compromises efficiency.

Is the LA22ZA120 compatible with my furnace?
This part is a 1/2 inch bore blower wheel designed for specific Carrier, Bryant, and Payne models. Check your unit’s parts list for the LA22ZA120 or cross-reference the dimensions (nominally 11" x 11") and rotation before installation.

How do I ensure a secure installation?
Clean the motor shaft of rust and debris before mounting. Align the hub set screw with the flat portion of the motor shaft and tighten to manufacturer torque specs to prevent slipping and ensure proper clearance within the scroll.

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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.