Lennox 89M92 Capacitor

The Lennox 89M92 is a high-duty dual run capacitor engineered for demanding HVACR applications, specifically designed to support both compressor and fan motor circuits simultaneously. Rated at 80+10 MFD with a 370V tolerance, this round-case component serves as a direct OEM replacement part for Lennox, Armstrong, and Ducane units. As a veteran-grade HVAC replacement capacitor, it ensures proper phase shift and starting torque for high-tonnage 5-ton air conditioners and heat pumps, including popular series like the 13ACD, XC13, and XP16.

Constructed with a non-PCB, oil-filled design and a robust metal canister, the 89M92 round run capacitor is built to withstand significant thermal stress and electrical vibration. Its 80/10 uF capacitance allows it to replace legacy Lennox part numbers such as 89M9201 and 100335-26. For technicians managing service calls, maintaining correct microfarad ratings and a 370VAC threshold is critical for protecting the winding integrity of expensive condenser fan motors and compressors. This part features standard 1/4-inch male quick-connect terminals for seamless integration into existing wiring harnesses.

• Dual-Circuit Functionality: Integrated 80 MFD and 10 MFD sections provide precise power storage for both the compressor and the condenser fan motor.
• OEM Compatibility: Specifically engineered as a drop-in replacement for Lennox 89M9201, 49K5201, and 100335-26.
• High Temperature Resistance: Advanced internal construction designed for continuous duty in high-ambient outdoor environments.
• Reliable Motor Performance: Restores factory-spec starting torque and improves overall electrical efficiency of the condensing unit.

Can a 440V capacitor be used to replace this 370V model?
Yes, technicians often use 440V capacitors as a heavy-duty upgrade for 370V applications, as the voltage rating indicates the maximum stress the component can handle without failure.

Why is the 80+10 MFD rating significant for 5-ton units?
Large 5-ton residential systems typically require higher capacitance to overcome the inertia of high-mass compressors during the start cycle and to maintain efficient running current.

What are the signs of a failing 89M92 capacitor?
Common diagnostic indicators include a "swollen" or bulged top, an audible humming from the compressor without startup, or the fan motor failing to reach its rated RPM.

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.