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Bard part number 8000-157 is an OEM Copeland scroll compressor (ZR46K3-TFD-230) used in select Bard wall-mounted package air conditioners to restore proper refrigerant compression and cooling capacity when the original compressor has failed or is mechanically worn. This compressor is built for 460V three-phase applications and is commonly associated with R-22 and R-407C systems, making it a practical choice for keeping legacy Bard equipment running without changing the unit. For a smooth installation and reliable operation, confirm the full Bard model and serial number, match the electrical rating, and follow standard best practices like replacing the filter drier, verifying oil and refrigerant compatibility, and performing proper evacuation and charging procedures.