Sterling HVAC 11J31R01871 Motor

The Sterling HVAC 11J31R01871 Motor is a precision-engineered 115v 1/20hp 1000rpm TE fan motor, purpose-built for high-demand unit heater parts applications. This totally enclosed (TE) assembly provides critical protection for internal windings against dust, debris, and moisture, ensuring continuous operation in challenging mechanical environments. Designed as a direct OEM replacement motor, this single-speed unit features a robust 5-inch diameter frame and utilizes a shaded pole design for reliable starting torque and consistent performance. Contractors often utilize the 11J31R01871 for the Sterling QV series (sizes 30, 45, 60, and 75), where maintaining specific static pressure and airflow across the heat exchanger is vital for system efficiency. The motor's 1000 RPM rating is calibrated to match factory fan blade pitches, preventing motor overload and optimizing thermal transfer. When replacing aged motors, verify the 3/8-inch shaft diameter to ensure compatibility with existing blower wheels.

• Totally Enclosed Design: Protects internal components from airborne contaminants and harsh environmental conditions found in commercial garages and warehouses.
• Optimized Performance: Operates at a precise 1000 RPM to maintain the designed CFM requirements for Sterling unit heaters.
• Direct Fit Compatibility: Specifically engineered for the Sterling HVAC 11J31R01871 specification, facilitating rapid field installation without mounting modifications.
• Durable Construction: Features a rolled steel frame and high-quality bearings to withstand the thermal cycling typical of gas-fired heating equipment.

Is the 11J31R01871 compatible with all Sterling QV units?
This motor is specifically designed for QV Series sizes 30 through 75. For units manufactured before June 2006, technical data suggests verifying the shaft diameter as manufacturing specifications for fan hubs transitioned during that period.

Can this motor be used in an open-drip proof (ODP) application?
While it can replace an ODP motor if dimensions match, its totally enclosed rating is an upgrade, offering superior protection in environments with high particulate counts where ODP motors typically fail.

What is the rotation direction for this part?
The 11J31R01871 is engineered for clockwise (CW) rotation when viewing the shaft end, ensuring correct airflow direction in standard Sterling blower configurations.

This item is not eligible for free shipping.

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.