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Bard 800-0439BX is an OEM heating distributor assembly supplied boxed, used in Bard wall mounted HVAC equipment to split and route refrigerant evenly through the indoor coil circuit during heating operation. A properly matched distributor helps maintain consistent coil feeding across multiple circuits, which supports stable capacity, correct superheat control, and reliable defrost and heat performance on compatible Bard systems. Because distributor configurations vary by model and tonnage, confirm part number fit to your unit model and serial before ordering to ensure the connections and circuit layout match your original component.
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.