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The genuine OEM Lennox 97J51 is a Copeland CRHL-100K-0 compressor rated at 120,000 BTUH (10 ton), 460V, R-22 refrigerant, 3-phase. As the primary component of your Lennox commercial condensing unit, it pressurizes and circulates refrigerant to drive the entire cooling cycle. Built to Lennox factory specifications, this high-capacity compressor restores full rated tonnage and efficiency to large-scale systems.
Common failure symptoms include the unit not cooling, the compressor humming without starting, repeated breaker trips, loud knocking, rattling, or grinding noises, short-cycling, and excessive amp draw. Failures on high-tonnage compressors often follow electrical faults, contactor or capacitor issues, refrigerant flooding, or long-term mechanical wear.
Why OEM matters: The genuine Lennox 97J51 guarantees the correct 10-ton displacement, 460V 3-phase electrical rating, and R-22 refrigerant compatibility for your equipment. Aftermarket substitutes can cause capacity mismatches, oil incompatibility, premature failure, and voided warranty coverage. Installation, brazing, and refrigerant recovery should be performed by a licensed HVAC technician. In stock and ships same day when ordered before the daily cutoff.