The Carrier HC39SB231 is a direct drive blower motor specifically designed for residential and light commercial HVAC air handlers and furnaces. As a PSC (Permanent Split Capacitor) motor, it operates on a 208/230V single-phase circuit, providing 1/4 HP at a rated speed of 1075 RPM. This multi-speed HVAC motor features three distinct speed taps, allowing technicians to fine-tune airflow for optimal static pressure and system efficiency. Built on a NEMA 48 frame with a 5.6-inch diameter, it utilizes a 1/2 inch x 3 inch shaft and a clockwise (CW) rotation, making it a drop-in OEM replacement motor for various Carrier, Bryant, and Payne units, including models 40AQ, 40AS, and 48AQ. The motor requires a 7.5 MFD / 370V capacitor for proper startup and utilizes sleeve bearings for quiet, continuous-duty operation in demanding environments.

• Multi-Speed Versatility: Three-speed taps provide precise control over CFM to meet specific system requirements.
• OEM Compatibility: Engineered as a direct fit for 48-frame blower assemblies, reducing installation time for technicians.
• Quiet Operation: Internal sleeve bearings minimize vibration and acoustic noise during long run cycles.
• Permanent Split Capacitor Design: Reliable 1075 RPM motor performance with a low 3.2 Full Load Amperage (FLA) draw.

What capacitor is required for the HC39SB231?
This motor requires a 7.5 MFD / 370V run capacitor for proper initiation and torque. Using an underrated capacitor may cause overheating or failure.

Can I use this motor to replace a single-speed model?
Yes, provided the 1/4 HP blower motor specs (RPM, voltage, frame size, and rotation) match. The extra speed taps can be capped if not utilized by the control board.

Is the rotation reversible on this motor?
No, this specific model is fixed for Clockwise (CW) rotation. Ensure your existing blower wheel and housing configuration matches this lead-end rotation before installation.

Item is Non Cancelable / Non Returnable

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.