Nordyne 621939 Evaporator Motor

The Nordyne 621939 Evaporator Motor is a heavy-duty, 1/3 HP blower motor engineered for precision airflow in residential and light commercial HVAC applications. This 208-230V 2-speed motor operates at 900 RPM and is a direct 621939R replacement motor, ensuring a drop-in fit for Q3 series single package heat pumps and various air handlers. Built within a standard 48-frame housing, it features a 3.76-inch shaft and requires a 10 uF 370V capacitor for optimal startup and run performance. As a veteran-grade OEM Nordyne part, it provides the torque necessary to maintain static pressure across evaporator coils, preventing freeze-ups and ensuring consistent heat exchange. The CCWLE rotation and dual-speed capability allow contractors to fine-tune CFM delivery based on the specific load requirements of the system, making it an essential component for high-efficiency maintenance and repairs.

• Direct OEM Compatibility: Specifically designed to replace Nordyne, Intertherm, and Miller part numbers 621939 and 621939R without mounting modifications.
• Dual-Speed Versatility: The 2-speed configuration allows for optimized airflow regulation, improving seasonal energy efficiency and indoor comfort.
• Contractor-Grade Durability: Features a high-torque 1/3 HP design capable of reliable operation in high-demand evaporator environments.
• Simplified Installation: Standard 48-frame dimensions and a 1/2-inch diameter shaft ensure compatibility with existing blower wheels and housing brackets.

• What are the electrical requirements for this motor? This motor operates on a 208-230V, 60Hz power supply and pulls approximately 2.4 to 4.8 Amps depending on the load.
• Does this motor include the run capacitor? This is the motor only; a 10 MFD 370 Volt capacitor must be sourced separately for proper operation.
• Which rotation direction does this motor support? This unit is built for Counter-Clockwise Lead End (CCWLE) rotation, typical for standard Nordyne air handlers.

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.