Lennox 99W98 Run Capacitor

The Lennox 99W98 Run Capacitor is a high-performance 30/10 MFD 440V dual run capacitor engineered for demanding residential and light commercial HVAC applications. As an essential component for motor phase-shifting, this HVAC dual capacitor provides the necessary reactive power to both the compressor and the condenser fan motor simultaneously. Built to withstand high-stress electrical environments, it features a 440 VAC rating, making it a robust upgrade or standard replacement for 370V systems, ensuring superior dielectric strength and thermal stability during peak load cycles. For technicians troubleshooting hard-starting compressors or inefficient fan speeds, the Lennox 99W98 offers precise capacitance tolerances to maintain correct motor torque and prevent winding overheating.

Key Benefits:

• Dual-purpose design: Consolidates both 30 microfarad and 10 microfarad circuits into a single round metal canister to save space and simplify wiring.
• Optimized for Lennox systems: Serves as a direct OEM-spec Lennox replacement part for ensuring factory-standard motor efficiency and power factor correction.
• Extended component life: Helps reduce high amperage draws during startup, protecting expensive compressor windings from premature insulation breakdown.
• Universal 440V compatibility: Rated for 440 volts, providing a higher safety margin for voltage fluctuations compared to standard 370V capacitors.
• Non-PCB construction: Utilizes modern, environmentally safe oil to maintain stable capacitance across a wide operating temperature range.

Common Questions:

• Can this capacitor be used in a 370V system? Yes, the Lennox 99W98 is rated for 440V, allowing it to safely replace a 370V capacitor of the same MFD; however, a 370V capacitor cannot replace a 440V unit.
• How do I identify the terminals for installation? The capacitor features standard markings: 'Herm' for the compressor lead, 'Fan' for the condenser fan motor, and 'C' for the common line.
• What are the symptoms of a failing 99W98 capacitor? Common field indicators include a humming compressor that fails to start, a fan motor that requires a manual push to turn, or physical signs such as a bulged top or oil leakage.

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.