OEM Lennox Scroll Compressor 83,000 BTUH 200/230V 3-Phase — 79M90

The genuine OEM Lennox 79M90 is a Copeland ZP83KCE-TF5-830 scroll compressor rated at 83,000 BTUH (approximately 7 tons) for 200/230V, 3-phase, R-410A systems. This high-capacity compressor is the primary workhorse of your Lennox condensing unit, compressing refrigerant vapor and driving the heat-transfer cycle that cools your building. Its rugged scroll design offers high efficiency and dependable performance under demanding commercial and large-residential loads.

Common failure symptoms: Signs that the 79M90 needs replacement include an outdoor unit that buzzes or clicks without starting, frequent breaker trips, insufficient or no cooling, overheating and short-cycling on the internal overload, or loud grinding and knocking sounds. Open windings, a grounded motor, or a locked rotor confirm the compressor is done.

Why OEM matters: At 7 tons, correct displacement and oil charge are critical — the factory-specified 79M90 guarantees the capacity, refrigerant flow, and electrical match your Lennox system was engineered for. Aftermarket substitutes can undercut performance, strain other components, and void your warranty. Always verify against the unit data plate, evacuate the system thoroughly, install a new filter drier, and recharge to Lennox specifications for a lasting repair.