Lennox 89W77 Blower Motor
The Lennox 89W77 Blower Motor (part number 104849-05) is a high-duty, direct-drive motor specifically engineered for critical application in industrial and commercial HVAC systems. Operating at 240V with a 1/3 HP rating, this 825 RPM motor provides the precise torque and static pressure performance required for consistent airflow in air handlers and light-duty packaged units. Built as a Permanently Split Capacitor (PSC) motor, it features a 1.9 Amp draw and a single-speed design that ensures electrical efficiency while maintaining OEM Lennox specifications. The motor is housed in a rugged cast-iron frame with a steel shaft and permanently lubricated ball bearings, eliminating standard maintenance requirements and ensuring reliable performance in horizontal belly-band mounting configurations.
Key Benefits- Direct OEM Replacement: Matches exact Lennox 89W77 physical and electrical profiles for immediate drop-in installation without field modifications.
- High-Torque PSC Design: The 1/3 HP 825 RPM motor provides stable RPM under load, preserving system SEER ratings and airflow balance.
- Industrial Build Quality: Features a 5.7-inch diameter motor body and a 1/2 x 4-inch shaft for compatibility with standard blower wheels and 15 MFD 370 VAC capacitors.
- Zero Maintenance Bearings: Sealed ball bearings allow for continuous-duty operation without the need for periodic re-oiling.
Is the 89W77 motor compatible with multi-speed systems?
No, this is a single-speed 825 RPM HVAC motor. It is designed for systems that pull a dedicated 1.9 Amp load at a constant speed to maintain calibrated CFM.
What capacitor is required for the Lennox 104849-05?
This motor requires a 15 MFD / 370 VAC run capacitor. Using an incorrectly rated capacitor will result in excessive heat and premature winding failure.
Can this motor be mounted in any orientation?
This specific model is optimized for horizontal mounting using a standard belly-band bracket; ensure the lead wires are positioned with a drip loop to prevent moisture ingress.
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: $275.06
-65%$275.06
$96.27Lennox 89W77 Blower Motor
The Lennox 89W77 Blower Motor (part number 104849-05) is a high-duty, direct-drive motor specifically engineered for critical application in industrial and commercial HVAC systems. Operating at 240V with a 1/3 HP rating, this 825 RPM motor provides the precise torque and static pressure performance required for consistent airflow in air handlers and light-duty packaged units. Built as a Permanently Split Capacitor (PSC) motor, it features a 1.9 Amp draw and a single-speed design that ensures electrical efficiency while maintaining OEM Lennox specifications. The motor is housed in a rugged cast-iron frame with a steel shaft and permanently lubricated ball bearings, eliminating standard maintenance requirements and ensuring reliable performance in horizontal belly-band mounting configurations.
Key Benefits- Direct OEM Replacement: Matches exact Lennox 89W77 physical and electrical profiles for immediate drop-in installation without field modifications.
- High-Torque PSC Design: The 1/3 HP 825 RPM motor provides stable RPM under load, preserving system SEER ratings and airflow balance.
- Industrial Build Quality: Features a 5.7-inch diameter motor body and a 1/2 x 4-inch shaft for compatibility with standard blower wheels and 15 MFD 370 VAC capacitors.
- Zero Maintenance Bearings: Sealed ball bearings allow for continuous-duty operation without the need for periodic re-oiling.
Is the 89W77 motor compatible with multi-speed systems?
No, this is a single-speed 825 RPM HVAC motor. It is designed for systems that pull a dedicated 1.9 Amp load at a constant speed to maintain calibrated CFM.
What capacitor is required for the Lennox 104849-05?
This motor requires a 15 MFD / 370 VAC run capacitor. Using an incorrectly rated capacitor will result in excessive heat and premature winding failure.
Can this motor be mounted in any orientation?
This specific model is optimized for horizontal mounting using a standard belly-band bracket; ensure the lead wires are positioned with a drip loop to prevent moisture ingress.
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.
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Product Information
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Description
The Lennox 89W77 Blower Motor (part number 104849-05) is a high-duty, direct-drive motor specifically engineered for critical application in industrial and commercial HVAC systems. Operating at 240V with a 1/3 HP rating, this 825 RPM motor provides the precise torque and static pressure performance required for consistent airflow in air handlers and light-duty packaged units. Built as a Permanently Split Capacitor (PSC) motor, it features a 1.9 Amp draw and a single-speed design that ensures electrical efficiency while maintaining OEM Lennox specifications. The motor is housed in a rugged cast-iron frame with a steel shaft and permanently lubricated ball bearings, eliminating standard maintenance requirements and ensuring reliable performance in horizontal belly-band mounting configurations.
Key Benefits- Direct OEM Replacement: Matches exact Lennox 89W77 physical and electrical profiles for immediate drop-in installation without field modifications.
- High-Torque PSC Design: The 1/3 HP 825 RPM motor provides stable RPM under load, preserving system SEER ratings and airflow balance.
- Industrial Build Quality: Features a 5.7-inch diameter motor body and a 1/2 x 4-inch shaft for compatibility with standard blower wheels and 15 MFD 370 VAC capacitors.
- Zero Maintenance Bearings: Sealed ball bearings allow for continuous-duty operation without the need for periodic re-oiling.
Is the 89W77 motor compatible with multi-speed systems?
No, this is a single-speed 825 RPM HVAC motor. It is designed for systems that pull a dedicated 1.9 Amp load at a constant speed to maintain calibrated CFM.
What capacitor is required for the Lennox 104849-05?
This motor requires a 15 MFD / 370 VAC run capacitor. Using an incorrectly rated capacitor will result in excessive heat and premature winding failure.
Can this motor be mounted in any orientation?
This specific model is optimized for horizontal mounting using a standard belly-band bracket; ensure the lead wires are positioned with a drip loop to prevent moisture ingress.
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.
