U.S. Motors 3312 – EZ-FIT Direct Drive Blower and Condenser Fan Motor, 3/4 HP, 115V, 1075 RPM
The U.S. Motors 3312 EZ-FIT motor is a multi-speed, direct-drive blower and condenser fan motor engineered for replacement and OEM applications in residential and light commercial HVAC systems. Rated at 3/4 horsepower, this 115V motor operates at 1075 RPM and offers four discrete speed taps for broad compatibility.
Key Performance Features
Multi-Speed Configuration: 4-speed settings support a range of airflow requirements across blower and condenser applications
Direct Drive Design: Eliminates belt maintenance and improves efficiency in fan and blower assemblies
Voltage Rating: Operates at 115 volts, 60 Hz, single-phase power supply
Heavy-Duty Construction: Built with a durable frame and long-life sleeve or ball bearings depending on model specification
Versatile Mounting: Includes resilient base and mounting holes suitable for various OEM and retrofit positions
Technical Specifications
Horsepower: 3/4 HP
Rotation: Reversible (CW/CCW)
RPM: 1075
Voltage: 115V
Frequency: 60 Hz
Number of Speeds: 4
Mounting Type: Belly band or resilient ring (model dependent)
Motor Type: PSC (Permanent Split Capacitor)
Shaft Diameter: Typically 1/2" (verify with model)
Installation Considerations
The 3312 model is designed for direct replacement in systems requiring a 3/4 HP, 1075 RPM motor. Confirm compatibility with blower housing, fan blade, and capacitor specifications before installation. Field wiring should comply with all applicable local and NEC electrical codes.
Installation by a licensed HVAC professional is recommended to ensure correct motor alignment, capacitor matching, and airflow performance. This unit is not intended for use with variable speed systems or ECM controls.