Armstrong Furnace R45515-001 Fan Motor

The Armstrong Furnace R45515-001 Fan Motor is a precision-engineered PSC (Permanent Split Capacitor) replacement motor designed for high-static pressure furnace applications. Operating at 208-230V, 60Hz, and a synchronous speed of 1075 RPM, this single-phase motor provides stable torque and airflow for residential heating and cooling systems. As an OEM HVAC replacement motor, it ensures direct mechanical and electrical compatibility, eliminating the need for field modifications or bracket adjustments. The housing is designed for efficient heat dissipation to protect the internal windings during high-demand cycles. For contractors, this direct drive blower motor offers a reliable solution for restoring factory-standard air delivery and static pressure performance. Ensure the capacitor matches the specified microfarad rating on the nameplate to maintain optimal lead-lag efficiency and prevent premature winding failure. This motor is a critical component for maintaining the efficiency and operational longevity of compatible Armstrong Air and Allied Air equipment.

• OEM Fitment: Eliminates alignment issues and reduces installation time on Armstrong Furnace motor replacements.
• Balanced Rotor: Minimizes vibration and harmonic noise across the ductwork.
• Thermal Protection: Features internal automatic reset to prevent burnout during airflow restrictions.
• Multi-Speed Capability: Allows for precise CFM tuning based on system static pressure requirements.

What is the frame size and mounting of the R45515-001?
This motor typically utilizes a standard 48-frame diameter with belly-band or torsion flex mounting configurations common in HVAC blower motor assemblies.

Can I use a rescue motor instead of this OEM part?
While universal motors are available, the Armstrong R45515-001 ensures the exact RPM and torque curve required to meet the furnace’s original heating and cooling rise specifications.

Does this motor include a new run capacitor?
Standard replacement motors generally do not include the capacitor; it is recommended to replace the run capacitor whenever installing a new 1075 RPM fan motor to ensure proper phase shift.

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.