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The Bard 917-0220BX is an OEM evaporator coil assembly, boxed for service replacement, used in Bard wall mounted air conditioner applications to restore proper cooling, humidity removal, and refrigerant heat transfer when the original coil is leaking, restricted, or physically damaged. This coil includes the distributor assembly for correct refrigerant metering across the coil circuits, helping the system pull down temperature evenly and protect the compressor from poor superheat control caused by mismatched components. If you are replacing this part, confirm your unit model and serial range, and follow standard best practices like evacuating properly, weighing in the correct charge, and verifying airflow and superheat after startup for a reliable repair.
Bard uses suffixes like "BX" to manage parts internally. These do not change the physical form or function of the part.
A part number ending in "BX" simply means it is packaged in a box for shipping, rather than for internal assembly use.
Example: 8406-142BX is physically identical to 8406-142.