Lennox 85L52 Blower Wheel

The Lennox 85L52 Blower Wheel is a high-performance centrifugal blower fan designed for heavy-duty HVAC applications requiring consistent air delivery. Engineered as a 15x15 double inlet blower wheel, this component features a 1-inch bore and is statically and dynamically balanced to minimize vibration and extend the service life of the blower motor. This unit is the direct OEM replacement for Lennox 66656, ensuring exact fitment and airflow performance in compatible air handlers and furnaces. Constructed with convex rims and individual blades mechanically locked to the hub, this forward-curved blower wheel maintains structural integrity under high RPMs and static pressure. For contractors performing a Lennox 85L52 replacement, this wheel provides the precise HVAC blower wheel dimensions required to restore factory-spec cubic feet per minute (CFM) output. Its galvanized steel construction offers superior corrosion resistance, essential for maintaining indoor air quality and system efficiency in demanding environments.

• Direct OEM Compatibility: Engineered as the specific Lennox replacement part for model 66656, ensuring seamless installation without field modifications.
• Precision Balancing: Factory-balanced to reduce harmonic noise and prevent premature bearing failure in the furnace blower motor.
• Durable Construction: Heavy-gauge galvanized steel blades provide long-term resistance to moisture and debris accumulation.
• Optimized Airflow: The 15-inch diameter and width are calibrated for high-volume air distribution across residential and commercial ductwork.

Is the Lennox 85L52 compatible with non-Lennox units?
While designed primarily for Lennox air handlers, this wheel may fit other brands if the 15"x15" dimensions and 1" bore diameter match the original specifications. Always verify the hub position and rotation direction before installation.

What are the symptoms of a failing blower wheel?
Common indicators include excessive vibration, "thumping" noises during the startup cycle, or a significant drop in CFM output despite the motor operating at full speed.

How do I ensure the set screw is properly secured?
The 1-inch bore hub requires the set screw to be torqued against the flat of the motor shaft to prevent slippage and hub damage during high-torque startup sequences.

This item is not eligible for free shipping.

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.