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Bard 5204-001BX is an OEM subcooling heat exchanger used in select Bard wall-mount air conditioner models to improve refrigerant system stability by increasing liquid-line subcooling before the metering device. This component is part of the sealed refrigeration circuit and is designed to match Bard performance and fit requirements, making it a dependable choice when addressing poor cooling, erratic pressures, or damage found during service. Because refrigerant recovery, brazing, evacuation, and proper charging are required, confirm compatibility by unit model and serial number before ordering and have installation performed by a qualified HVAC technician.
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.