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The Lennox 12U80 is a genuine OEM Interlink scroll compressor (model ABA042MAA) rated at 44,200 BTUH, built for 380V (max), three-phase power at 22–60 Hz using R-410A refrigerant. Engineered for commercial and export Lennox condensing units, this compressor circulates high-pressure R-410A to drive the cooling cycle, delivering efficient, low-vibration performance across a wide frequency range for variable-drive and multi-region applications.
Common failure symptoms: A failing 12U80 typically shows as a running unit that no longer cools, hard starting or humming without turning over, tripped three-phase protection, abnormal amp draw across the legs, and loud mechanical noise. Thermal-overload shutdowns, oil seepage around the shell, and scorched terminals point to internal wear or an electrical short.
Why OEM matters: The factory 12U80 is matched precisely to your Lennox system's capacity, three-phase electrical requirements, and R-410A oil charge. Substituting a non-OEM compressor risks phase mismatches, reduced capacity, voided warranties, and early failure. Install the genuine part for guaranteed compatibility and rated commercial performance. In stock and ships same day before 3PM CST.