Carrier HD46AR251 Blower Motor

The Carrier HD46AR251 Blower Motor is a high-performance ECM X13 motor designed for direct-drive heating and cooling applications. Operating at 3/4 HP, this electronically commutated motor delivers a maximum airflow of 1750 CFM and runs at a nominal 1050 RPM. Built for efficiency, it features a single-phase design, 208-230V compatibility, and a 48-frame housing. The counter-clockwise (CCW) rotation and 1/2-inch shaft diameter make it a standard OEM replacement motor for Carrier, Bryant, and Payne air handlers, specifically model FB4CNF060T00ACAA. As a technician, you know the Genteq X13 platform provides constant torque, maintaining consistent airflow even as static pressure increases. This HD46AR251 motor replaces older part numbers including HD46AQ260, HD46AQ265, and HD46AQ270. For a long-lasting installation, ensure the squirrel cage is centered and the belly band mounting does not obstruct the electrical ports. Always verify that 24V signals are reaching the appropriate speed taps before condemning the internal ECM module.

• Constant Torque Technology: The ECM X13 motor automatically adjusts out-put to maintain the 1750 CFM rating across varying duct conditions.
• OEM Compatibility: Pre-programmed for Carrier FB4CNF060T00ACAA units to ensure immediate "plug and play" functionality without field programming.
• High-Efficiency Performance: Consumes significantly less power than standard PSC motors, reducing overall system operating costs for the homeowner.
• Durable Construction: Features high-grade ball bearings and a NEMA 48 frame for reliable vertical shaft-down or horizontal operation.

Is the HD46AR251 interchangeable with a standard PSC motor? No, this is an electronically commutated motor which requires specific high-voltage and low-voltage control signals. Switching to a PSC would require significant wiring and control board modifications.

Which tap should I use for cooling? While programming varies by model, typically the high-speed tap (often Tap 5 or 4) is utilized for cooling to achieve the full 1750 CFM capacity.

Does this motor include the control module? Yes, this is the complete blower motor assembly, including the pre-programmed X13 module attached to the motor rear.

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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.