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The Bard 800-0422BX Distributor Assembly (boxed) is an OEM refrigerant distribution component used in select Bard wall mounted HVAC units to meter and split refrigerant evenly into multiple evaporator circuits after the expansion device, helping maintain stable superheat and consistent coil performance. If you are chasing symptoms like uneven coil frosting, poor capacity, or erratic TXV behavior, replacing a damaged or restricted distributor can restore proper refrigerant feed and protect the evaporator from circuit starvation. As a genuine Bard factory part, 800-0422BX is built for correct fit and dependable sealing, but you should confirm the unit model and tubing connection style before ordering since distributors are application specific.
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.