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The genuine OEM Lennox 28W86 is a Copeland ZP51K5E-TFD-830 scroll compressor rated at 51,500 BTUH for 460V three-phase R-410A applications. This compressor drives the refrigeration cycle in your Lennox commercial or high-capacity condensing unit, compressing R-410A refrigerant to reject heat and maintain reliable cooling. The scroll mechanism offers smooth operation, high volumetric efficiency, and long service life in demanding three-phase environments.
Common failure symptoms: Watch for a compressor that won't energize, repeated contactor chatter or breaker trips, loss of cooling capacity, excessive noise or vibration, or overheating and overload trips. Grounded windings, locked rotors, and worn scroll sets are typical reasons this component fails and needs replacement.
Why OEM matters: The Lennox 28W86 is matched to your system's voltage, phase, and capacity requirements. Using the authentic OEM compressor ensures proper oil type, correct amperage draw, and warranty compliance. Non-OEM parts risk mismatched performance and shortened equipment life, so the factory-specified part is the safest path back to rated efficiency.