Lennox 14B91 Motor
The Lennox 14B91 is a high-performance direct drive blower motor engineered for reliability in 208-230V single-phase HVAC systems. Rated at 3/4 HP with a nominal speed of 1075 RPM, this permanent split capacitor (PSC) motor features a dual-speed configuration, allowing for precise airflow adjustments in residential and light commercial air handlers. It operates at 60Hz and typically requires a 10 MFD 370V run capacitor (sold separately). This Sleeve Bearing motor is designed for continuous duty applications where thermal overload protection is critical. When replacing an OEM Lennox furnace motor, the 14B91 ensures proper static pressure performance and efficient heat exchange. Contractors frequently utilize this 48-frame motor as an HVAC blower motor replacement due to its standard reversible rotation and resilient mounting compatibility. Its robust construction minimizes vibration and extends the operational lifespan of the blower assembly in demanding environments.
Key Benefits
- Dual-Speed Versatility: The 2-speed blower motor design facilitates optimized CFM delivery for both heating and cooling cycles.
- OEM Compatibility: Exact electrical and mechanical drop-in for Lennox 14B91 part numbers, ensuring zero-modification installs.
- Thermal Protection: Internal automatic reset overload protection prevents motor burnout during high-static conditions or restricted airflow.
- Standard 48-Frame: Features a 5.6-inch diameter housing that fits common mounting brackets and belly bands.
Common Questions
What is the frame size of the Lennox 14B91?
This is a standard NEMA 48-frame motor with a 1/2-inch diameter shaft, compatible with most OEM blower wheels and mounting kits.
Does this motor require a specific capacitor?
Yes, consistently check the nameplate; it typically requires a 10 MFD / 370V run capacitor to ensure proper startup torque and efficiency.
Can this replace a single-speed motor?
While it can be wired for a single high-speed application, its primary function is as a multi-speed fan motor to provide balanced air distribution in multi-stage systems.
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.
Original: $459.42
-65%$459.42
$160.80Lennox 14B91 Motor
The Lennox 14B91 is a high-performance direct drive blower motor engineered for reliability in 208-230V single-phase HVAC systems. Rated at 3/4 HP with a nominal speed of 1075 RPM, this permanent split capacitor (PSC) motor features a dual-speed configuration, allowing for precise airflow adjustments in residential and light commercial air handlers. It operates at 60Hz and typically requires a 10 MFD 370V run capacitor (sold separately). This Sleeve Bearing motor is designed for continuous duty applications where thermal overload protection is critical. When replacing an OEM Lennox furnace motor, the 14B91 ensures proper static pressure performance and efficient heat exchange. Contractors frequently utilize this 48-frame motor as an HVAC blower motor replacement due to its standard reversible rotation and resilient mounting compatibility. Its robust construction minimizes vibration and extends the operational lifespan of the blower assembly in demanding environments.
Key Benefits
- Dual-Speed Versatility: The 2-speed blower motor design facilitates optimized CFM delivery for both heating and cooling cycles.
- OEM Compatibility: Exact electrical and mechanical drop-in for Lennox 14B91 part numbers, ensuring zero-modification installs.
- Thermal Protection: Internal automatic reset overload protection prevents motor burnout during high-static conditions or restricted airflow.
- Standard 48-Frame: Features a 5.6-inch diameter housing that fits common mounting brackets and belly bands.
Common Questions
What is the frame size of the Lennox 14B91?
This is a standard NEMA 48-frame motor with a 1/2-inch diameter shaft, compatible with most OEM blower wheels and mounting kits.
Does this motor require a specific capacitor?
Yes, consistently check the nameplate; it typically requires a 10 MFD / 370V run capacitor to ensure proper startup torque and efficiency.
Can this replace a single-speed motor?
While it can be wired for a single high-speed application, its primary function is as a multi-speed fan motor to provide balanced air distribution in multi-stage systems.
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.
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
The Lennox 14B91 is a high-performance direct drive blower motor engineered for reliability in 208-230V single-phase HVAC systems. Rated at 3/4 HP with a nominal speed of 1075 RPM, this permanent split capacitor (PSC) motor features a dual-speed configuration, allowing for precise airflow adjustments in residential and light commercial air handlers. It operates at 60Hz and typically requires a 10 MFD 370V run capacitor (sold separately). This Sleeve Bearing motor is designed for continuous duty applications where thermal overload protection is critical. When replacing an OEM Lennox furnace motor, the 14B91 ensures proper static pressure performance and efficient heat exchange. Contractors frequently utilize this 48-frame motor as an HVAC blower motor replacement due to its standard reversible rotation and resilient mounting compatibility. Its robust construction minimizes vibration and extends the operational lifespan of the blower assembly in demanding environments.
Key Benefits
- Dual-Speed Versatility: The 2-speed blower motor design facilitates optimized CFM delivery for both heating and cooling cycles.
- OEM Compatibility: Exact electrical and mechanical drop-in for Lennox 14B91 part numbers, ensuring zero-modification installs.
- Thermal Protection: Internal automatic reset overload protection prevents motor burnout during high-static conditions or restricted airflow.
- Standard 48-Frame: Features a 5.6-inch diameter housing that fits common mounting brackets and belly bands.
Common Questions
What is the frame size of the Lennox 14B91?
This is a standard NEMA 48-frame motor with a 1/2-inch diameter shaft, compatible with most OEM blower wheels and mounting kits.
Does this motor require a specific capacitor?
Yes, consistently check the nameplate; it typically requires a 10 MFD / 370V run capacitor to ensure proper startup torque and efficiency.
Can this replace a single-speed motor?
While it can be wired for a single high-speed application, its primary function is as a multi-speed fan motor to provide balanced air distribution in multi-stage systems.
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.
