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The genuine OEM Lennox 11W93 is a Copeland CR24K7-PFV-830 reciprocating compressor rated at 24,400 BTUH, 208/230V, R-22, single-phase. This piston-driven compressor compresses refrigerant vapor to move heat out of the home and is the core component of your Lennox condensing unit. It is a direct factory replacement built to Lennox electrical and capacity specifications.
Common failure symptoms: A running fan with no cooling, hard starts that trip the breaker, loud knocking or valve chatter, excessive vibration, or a compressor that hums but won't start. Worn valves, failed windings, a seized crank, or a tripped internal overload are typical end-of-life signs on reciprocating compressors.
Why OEM matters: As a single-phase R-22 unit, the 11W93 needs the correct start components and oil charge to run reliably — a mismatched generic compressor can overload the start circuit and fail early. Because R-22 is phased out, the OEM 11W93 is the reliable way to keep an older single-phase Lennox system serviceable. Confirm voltage and phase, replace the filter drier, and verify charge and superheat after installation.