Lennox 89M90 Run Capacitor
Professional-grade Lennox 89M90 Run Capacitor designed for high-performance HVAC motor and compressor operation in Lennox, Armstrong, and Ducane equipment. This 70/10 MFD 370V dual run capacitor features a dual-rated design, providing the exact capacitance required for both the high-torque compressor circuit (70 microfarads) and the condenser fan motor (10 microfarads). Constructed with high-grade metalized polypropylene film and a round oil-filled aluminum can, this component is engineered to dissipate heat effectively while maintaining stable electrical characteristics under typical residential and light commercial loads.
As a direct OEM replacement for Lennox part number 100335-22 and 89M9001, this unit ensures seamless physical and electrical compatibility during field service. The 370 VAC dual run capacitor includes standard 1/4-inch quick-disconnect terminals with clear markings for Common, Hermetic (Herm), and Fan connections to prevent wiring errors. Built to meet UL 810 safety standards and EIA-456-A performance criteria, it incorporates an internal pressure-sensitive interrupter (PSI) to safely disconnect the capacitor in the event of an internal failure, protecting the expensive compressor and fan motor from potential damage.
Key Benefits:
- OEM Compatibility: Exact replacement for Lennox 89M90, 89M9001, and Allied/Armstrong 100335-22.
- Dual-Function Design: Integrates 70/10 microfarad ratings in a single round housing to save space in the electrical cabinet.
- Technical Reliability: Non-PCB oil-filled construction and 10,000 AFC protection for increased field life.
- Standardized Terminals: 1/4-inch male quick-connect tabs designed for standard contractor wiring harnesses.
- Temperature Resilient: Rated for operation up to 185°F (85°C) to handle high-ambient rooftop or closet installations.
Common Questions:
Can I use a 440V rated capacitor to replace this 370V 89M90?
Yes, a capacitor with a higher voltage rating (440V) can safely replace a 370V unit as long as the 70/10 MFD capacitance ratings match and the physical dimensions fit the mounting strap.
Does this capacitor identify as "failed" if it is not bulging?
While physical swelling or leaking is a common sign of failure, a 70/10 MFD capacitor can be electrically "open" or significantly out of the +/- 5% tolerance range without external deformation. Always verify with a multimeter set to the capacitance (MFD) setting.
Is the 89M90 compatible with Ducane or Concord units?
Yes, since Lennox is the parent company for Ducane, Allied Air, and Concord, this dual run capacitor is the specified replacement for those brands' units requiring a 70+10 MFD 370V round configuration.
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.
Lennox 89M90 Run Capacitor
Professional-grade Lennox 89M90 Run Capacitor designed for high-performance HVAC motor and compressor operation in Lennox, Armstrong, and Ducane equipment. This 70/10 MFD 370V dual run capacitor features a dual-rated design, providing the exact capacitance required for both the high-torque compressor circuit (70 microfarads) and the condenser fan motor (10 microfarads). Constructed with high-grade metalized polypropylene film and a round oil-filled aluminum can, this component is engineered to dissipate heat effectively while maintaining stable electrical characteristics under typical residential and light commercial loads.
As a direct OEM replacement for Lennox part number 100335-22 and 89M9001, this unit ensures seamless physical and electrical compatibility during field service. The 370 VAC dual run capacitor includes standard 1/4-inch quick-disconnect terminals with clear markings for Common, Hermetic (Herm), and Fan connections to prevent wiring errors. Built to meet UL 810 safety standards and EIA-456-A performance criteria, it incorporates an internal pressure-sensitive interrupter (PSI) to safely disconnect the capacitor in the event of an internal failure, protecting the expensive compressor and fan motor from potential damage.
Key Benefits:
- OEM Compatibility: Exact replacement for Lennox 89M90, 89M9001, and Allied/Armstrong 100335-22.
- Dual-Function Design: Integrates 70/10 microfarad ratings in a single round housing to save space in the electrical cabinet.
- Technical Reliability: Non-PCB oil-filled construction and 10,000 AFC protection for increased field life.
- Standardized Terminals: 1/4-inch male quick-connect tabs designed for standard contractor wiring harnesses.
- Temperature Resilient: Rated for operation up to 185°F (85°C) to handle high-ambient rooftop or closet installations.
Common Questions:
Can I use a 440V rated capacitor to replace this 370V 89M90?
Yes, a capacitor with a higher voltage rating (440V) can safely replace a 370V unit as long as the 70/10 MFD capacitance ratings match and the physical dimensions fit the mounting strap.
Does this capacitor identify as "failed" if it is not bulging?
While physical swelling or leaking is a common sign of failure, a 70/10 MFD capacitor can be electrically "open" or significantly out of the +/- 5% tolerance range without external deformation. Always verify with a multimeter set to the capacitance (MFD) setting.
Is the 89M90 compatible with Ducane or Concord units?
Yes, since Lennox is the parent company for Ducane, Allied Air, and Concord, this dual run capacitor is the specified replacement for those brands' units requiring a 70+10 MFD 370V round configuration.
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
Professional-grade Lennox 89M90 Run Capacitor designed for high-performance HVAC motor and compressor operation in Lennox, Armstrong, and Ducane equipment. This 70/10 MFD 370V dual run capacitor features a dual-rated design, providing the exact capacitance required for both the high-torque compressor circuit (70 microfarads) and the condenser fan motor (10 microfarads). Constructed with high-grade metalized polypropylene film and a round oil-filled aluminum can, this component is engineered to dissipate heat effectively while maintaining stable electrical characteristics under typical residential and light commercial loads.
As a direct OEM replacement for Lennox part number 100335-22 and 89M9001, this unit ensures seamless physical and electrical compatibility during field service. The 370 VAC dual run capacitor includes standard 1/4-inch quick-disconnect terminals with clear markings for Common, Hermetic (Herm), and Fan connections to prevent wiring errors. Built to meet UL 810 safety standards and EIA-456-A performance criteria, it incorporates an internal pressure-sensitive interrupter (PSI) to safely disconnect the capacitor in the event of an internal failure, protecting the expensive compressor and fan motor from potential damage.
Key Benefits:
- OEM Compatibility: Exact replacement for Lennox 89M90, 89M9001, and Allied/Armstrong 100335-22.
- Dual-Function Design: Integrates 70/10 microfarad ratings in a single round housing to save space in the electrical cabinet.
- Technical Reliability: Non-PCB oil-filled construction and 10,000 AFC protection for increased field life.
- Standardized Terminals: 1/4-inch male quick-connect tabs designed for standard contractor wiring harnesses.
- Temperature Resilient: Rated for operation up to 185°F (85°C) to handle high-ambient rooftop or closet installations.
Common Questions:
Can I use a 440V rated capacitor to replace this 370V 89M90?
Yes, a capacitor with a higher voltage rating (440V) can safely replace a 370V unit as long as the 70/10 MFD capacitance ratings match and the physical dimensions fit the mounting strap.
Does this capacitor identify as "failed" if it is not bulging?
While physical swelling or leaking is a common sign of failure, a 70/10 MFD capacitor can be electrically "open" or significantly out of the +/- 5% tolerance range without external deformation. Always verify with a multimeter set to the capacitance (MFD) setting.
Is the 89M90 compatible with Ducane or Concord units?
Yes, since Lennox is the parent company for Ducane, Allied Air, and Concord, this dual run capacitor is the specified replacement for those brands' units requiring a 70+10 MFD 370V round configuration.
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.
