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The Lennox 49L29 is a genuine OEM Copeland ZR42K3E-TFD-830 scroll compressor rated at 34,900 BTUH, engineered for 50 Hz, 380/420V three-phase power with R-407C refrigerant. This compressor drives the refrigerant cycle in international and export-spec Lennox equipment, compressing low-pressure vapor into high-pressure gas so heat can be rejected at the condenser. The scroll mechanism delivers high efficiency, low vibration, and reliable three-phase performance in demanding commercial and light-commercial applications.
Common failure symptoms: Watch for a system that runs but no longer cools, tripped overloads or contactors, phase-related buzzing without startup, abnormal noise, excessive heat, or high amp draw. Loss of compression, shorted or open windings, and mechanical seizure are common causes of replacement in three-phase compressors.
Why OEM matters: The 49L29 is built to exact Lennox factory specifications for the R-407C refrigerant blend, 50 Hz operation, and three-phase electrical requirements — details that generic substitutes frequently get wrong. Installing the genuine OEM compressor guarantees rated capacity, correct oil charge, and long-term reliability while preserving equipment warranty coverage. Confirm voltage, phase, and refrigerant on your unit's data plate before ordering.