Reznor 174993 Motor

The Reznor 174993 Motor is a heavy-duty, industrial-grade 1HP replacement motor engineered for high-demand HVAC blower assembly applications. Built for reliability in commercial heating environments, this 1725 RPM blower motor features a dual-voltage design, capable of operating on both 115V and 230V single-phase power configurations. This versatility makes it an essential stock item for contractors servicing various Reznor unit heaters and ventilation systems. The 1HP rating ensures sufficient torque for consistent airflow across the heat exchanger, preventing high-limit trips and ensuring optimal thermal transfer. Designed to withstand the rigors of continuous operation, this single-phase 1725 RPM motor provides a direct-fit solution for maintaining the structural integrity and performance standards of OEM equipment. Whether you are performing a routine furnace motor replacement or troubleshooting a seized blower, the 1725 RPM 1HP 115/230V motor delivers the mechanical precision required for professional HVACR maintenance.

• Dual-Voltage Versatility: Field-selectable 115/230V wiring allows for seamless integration into diverse electrical systems.
• Optimized RPM Profile: A fixed speed of 1725 RPM provides the stable static pressure necessary for industrial air handlers.
• Contractor-Grade Durability: Robust 1HP output provides high starting torque to handle heavy blower wheels and belt-drive setups.
• OEM Compatibility: Specifically engineered as a direct cross-reference for Reznor part number 174993, ensuring proper mounting and shaft alignment.

What causes a blower motor to hum but not start?
This is often caused by a failed start capacitor or seized bearings within the 174993 motor. If the shaft does not spin freely by hand, the motor likely requires replacement due to internal mechanical failure.

Can I use this motor on a 208V system?
Yes, the 230V rating typically handles 208-230V applications, provided the amperage draw remains within the nameplate's Full Load Amps (FLA) limits. Always verify current draw after installation.

How do I change the rotation of this motor?
Rotation is usually reversible by swapping the internal lead wires (T1-T4 or similar) as indicated on the wiring diagram located on the motor housing.

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.