Lennox 25G52 Motor

The Lennox 25G52 Motor is a high-performance OEM blower motor designed for critical air handling applications in residential and light commercial systems. Engineered as a 1/3 HP PSC motor, this direct-drive component operates at a nominal 1075 RPM across 4 speeds, allowing for precise airflow calibration to meet specific system static pressure requirements. Integrated into a 48Y frame, the 25G52 features an all-angle sleeve bearing system and is thermally protected to prevent winding failure during high-demand cycles. Operating on 208-230V single-phase power, this unit is a primary Lennox replacement motor for units like the CB18 and GCS10 series. The motor utilizes a 5 MFD at 370 VAC capacitor (not included) and is configured for counter-clockwise lead end (CCWLE) rotation. For contractors, this kit often includes a torsion flex motor mount adapter and spacers to ensure a drop-in fit, maintaining factory-certified airflow tolerances and reducing mechanical vibration within the blower housing.

• Multi-Speed Versatility: The 4-speed tap configuration provides technicians with the flexibility to optimize CFM for both cooling and heating modes.
• OEM Precision Fit: As a genuine Lennox 25G52 replacement, it eliminates the mounting and shaft alignment issues common with generic HVAC blower motors.
• Robust Protection: Internal thermal overload protection and Class B insulation ensure the motor handles high ambient temperatures in the blower compartment.
• Broad Compatibility: Directly replaces legacy part numbers 67F0701, 99C03, and 14F59, ensuring seamless integration with existing Lennox air handlers.

What capacitor is required for the Lennox 25G52?
This 1/3 HP blower motor requires a 5 MFD / 370V run capacitor for proper torque and phase displacement. Always verify the capacitor rating before energizing the 208-230V motor to prevent premature winding failure.

Can this motor replace a reversible rotation model?
The Lennox 25G52 is dedicated to CCWLE rotation (Counter-Clockwise Lead End). Technicians should verify the rotation of the existing blower wheel; using a motor with incorrect rotation will lead to zero static pressure and system overheating.

Does the kit include the motor mount?
Yes, the 25G52 motor kit typically includes a torsion flex bracket adapter and spacers to ensure compatibility with various Lennox and Armstrong blower assemblies using a 48-frame diameter.

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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.