Trane WHL1999 Blower Wheel

When you are handling a blower assembly repair on package units like the TCD, YCH, or WCH series, the Trane WHL1999 blower wheel serves as a direct OEM replacement part to restore factory-spec airflow and static pressure. This centrifugal fan wheel features a 12.78-inch diameter and a 9.5-inch width, engineered specifically for counter-clockwise (CCW) rotation. The 1/2-inch bore is outfitted with a standard set screw mounting system, ensuring a secure fit on the motor shaft to prevent vibration or slippage during high-torque startups. Constructing your repair with genuine Trane parts ensures the HVAC blower assembly maintains its original balancing, which is critical for protecting the motor bearings and maximizing the energy efficiency of the air handler. Whether you are troubleshooting industrial HVAC systems or commercial rooftop units, utilizing the WHL01999 (the updated part number) ensures seamless compatibility and performance without the need for field modifications.

• Precise Airflow Dynamics: The 12.78 x 9.5 dimensions are optimized for specific Trane and American Standard air handlers to maintain design CFM.
• Heavy-Duty Construction: Built to withstand commercial static pressures and temperature fluctuations within the centrifugal blower housing.
• Direct Fit Bore: The 1/2-inch bore size matches standard OEM motor shafts for a rapid swap-out during emergency HVAC repairs.
• Operational Stability: Factory-balanced design reduces mechanical stress on the blower motor and prevents cabinet resonance.

What is the correct rotation for the WHL1999?
This wheel is designed for counter-clockwise (CCW) rotation when viewed from the hub/set-screw side. Installing a CCW blower wheel in a clockwise application will lead to significantly reduced airflow and potential motor overheating.

Which models is this blower wheel compatible with?
The Trane WHL1999 is commonly found in 4-ton and 5-ton commercial units, including the TCD048, YCH060, and WCH048 series. Always verify the model and serial number on the unit nameplate to ensure the 12.78-inch diameter fits your specific HVAC system.

Does this part include the mounting hardware?
The wheel typically comes with the necessary set screw already installed in the hub for securing it to the 1/2-inch motor shaft.

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.