Armstrong Furnace R47429-002 Motor

The Armstrong Furnace R47429-002 is a heavy-duty 1/4 HP condenser fan motor engineered for high-static pressure applications in residential and light commercial HVAC systems. Operating at 1075 RPM on a 208-230V single-phase power supply, this 48Y frame motor provides the torque necessary for efficient heat dissipation across the condenser coils. As a direct replacement for 46K88 and R47429-001, it allows for a seamless drop-in installation without the need for bracket modifications, maintaining the original factory airflow specifications. This US Motors K55HXKPR-9736 equivalent features a TEAO (Totally Enclosed Air Over) enclosure and permanent split capacitor design, ensuring the internal windings remain protected from environmental debris while maintaining thermal efficiency. The 1/2-inch diameter shaft and clockwise rotation (lead end) are standard for many Armstrong and Lennox-branded outdoor units. For optimal performance and to prevent premature winding failure, technicians should always pair this OEM replacement motor with a new 5 MFD / 370V capacitor during service.

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Key Benefits

• Universal Voltage Compatibility: Rated for both 208V and 230V systems, offering flexibility for different site electrical configurations.
• Drop-in Replacement: Specifically designed to replace Armstrong 46K88 and R47429-001, ensuring correct shaft length and mounting alignment.
• Optimized Cooling: The 1075 RPM speed is calibrated for condenser fan assemblies to maximize BTU transfer and system EER.
• Industrial Build: Features a 48Y frame and TEAO enclosure to withstand the harsh conditions of outdoor condensing units.

Common Questions

Does this motor include the capacitor?
No, the 5 MFD @ 370 VAC capacitor is sold separately. It is industry standard to replace the capacitor when installing a new 1/4 HP motor to ensure proper startup torque and longevity.

What is the rotation of the R47429-002?
This motor is Clockwise Lead End (CWLE). Always verify your fan blade pitch matches the rotation of the replacement condenser motor to avoid airflow reversal.

Can I use this to replace a different horsepower motor?
It is recommended to only use this as a direct 1/4 HP HVAC motor replacement. Using a motor with incorrect horsepower or RPM can lead to compressor overheating or fan blade imbalance.

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.