Rheem-Ruud 51-100999-02 Condenser Motor

This genuine Rheem-Ruud 51-100999-02 condenser fan motor is a purpose-built OEM replacement motor designed for direct-drive applications in residential and light commercial condensing units. As an HVAC professional, you know that maintaining exact specifications is critical for airflow balance and head pressure control. This 1/10 HP condenser motor operates at a precise 825 RPM speed, specifically engineered to work with 208-230V single-phase systems. Built with a robust 48 Nema frame size and a totally enclosed enclosure, it provides superior protection against the environmental debris and moisture commonly encountered in outdoor settings.

The Rheem 51-100999-02 features a 1/2" x 2 15/16" keyed shaft and utilizes a permanent split capacitor (PSC) design, necessitating a 3 MFD/370V run capacitor for optimal torque and startup efficiency. With CCW rotation (lead end) and a versatile shell-band or end-boss mount, this unit ensures seamless mechanical fitment into the original motor bracketry. Replacing a failed HVAC condenser motor with an OEM-spec 51-100999-02 maintains the system's factory performance curves and heat rejection capabilities without the compatibility risks of a universal shaded-pole alternative.

• OEM Precision: Direct factory replacement for Rheem-Ruud 51-100999-02, ensuring zero-modification installation.
• Enhanced Durability: Features a totally enclosed enclosure to shield internal components from rain, dust, and outdoor contaminants.
• Optimized Performance: Specifically calibrated at 825 RPM to match factory airflow requirements for proper refrigerant cooling.
• Efficient Operation: Drawing only 0.75 Amps at 230V, this PSC motor provides reliable service while managing operating costs.

What rotation is required for this motor?
This motor is fixed at Counter-Clockwise (CCW) rotation when viewed from the lead end. Always verify your fan blade pitch before installation to ensure proper upward airflow through the condenser coil.

Does this motor require a specific capacitor?
Yes, for maximum motor life and starting torque, we recommend using a 3 microfarad, 370V run capacitor. Reusing an old capacitor can lead to premature failure of the new windings.

Can I use this in place of a 1075 RPM motor?
No. Using an 825 RPM motor in a system designed for 1075 RPM will result in insufficient airflow, high head pressures, and potential compressor damage. Always match the RPM rating and frame size exactly.

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.