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The genuine OEM Lennox 67W84 is an Interlink ABA051WAA scroll compressor rated at 51,500 BTUH, engineered for 460V three-phase systems running R-410A refrigerant. As the primary component of your Lennox commercial condensing unit, this compressor pressurizes and moves refrigerant through the circuit to drive high-capacity cooling, with the smooth, energy-efficient performance that makes scroll compressors ideal for demanding light-commercial applications.
Common failure symptoms: Look for a unit that runs but delivers no cooling, tripped breakers or blown fuses, loud humming, grinding, or vibration, locked-rotor and phase-loss faults, and repeated cutouts on internal overload from overheating. Windings shorted to ground or an open circuit at the terminals confirm the compressor has failed.
Why OEM matters: The 67W84 is built to Lennox's exact 460V three-phase electrical, displacement, and R-410A specifications. Installing a factory-matched compressor ensures correct phase rotation, protects rated capacity and efficiency, and preserves your equipment warranty. Aftermarket substitutes risk voltage and capacity mismatches that shorten service life. Verify proper phasing, evacuate the system, fit a new filter drier, and charge to spec.