Trane MOT12767 PSC Motor

The Trane MOT12767 PSC Motor is a high-performance direct drive blower motor engineered for heavy-duty HVAC service. This 1/2 HP 115V permanent split capacitor (PSC) motor operates at a nominal 1375 RPM, delivering the high-static pressure capability required for Trane and American Standard furnace cabinets. Built on a standard 48 frame, it features multi-speed taps (typically 4-speed) for precise airflow tuning across heating and cooling stages. As a direct replacement for MOT3019 and X70670720020, the MOT12767 ensures a drop-in physical fit, utilizing a 1/2" diameter shaft at 2.5" length. For optimal performance and to maintain motor service life, technicians should verify the run capacitor is rated for 15 MFD at 370V. The motor's open air over (OAO) design relies on house airflow for cooling, making it essential to clear any obstructions in the blower wheel or housing during installation.

Key Benefits

• Broad Compatibility: Direct OEM replacement for MOT3019, MOT03019, and MOT12767 across various Trane XE70 and XL80 furnace models.
• Optimized Performance: Sustains a high-torque 1375 RPM output, ensuring consistent CFM delivery through pleated high-MERV filtration systems.
• Efficient Duty Cycle: Rated for continuous operation with automatic thermal overload protection to prevent winding failure during high-demand cycles.
• Standardized Mounting: The NEMA 48 frame allows for standard belly band or cradle mounting, reducing installation time in the field.

Common Questions

What is the proper rotation for the MOT12767?
This motor is typically oriented for clockwise rotation (CW) when viewed from the shaft end. Always verify the lead configuration against the wiring diagram on the motor shell to ensure proper blower wheel direction.

Can I use a different capacitor than the 15 MFD / 370V recommended?
It is critical to use the specified 15 microfarad capacitor. Using an undersized or oversized capacitor will cause excessive heat in the windings and lead to premature motor failure.

Why is my motor getting hot and shutting off on thermal overload?
This usually indicates high static pressure from a restricted filter or a failing run capacitor. Check for 115V at the speed tap and ensure the blower wheel spins freely without bearing drag.

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.