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Bard part number 5651-014BX is an OEM hot gas bypass valve supplied boxed for service replacement on compatible Bard wall mounted and packaged HVAC equipment. This valve helps stabilize suction pressure and maintain proper evaporator conditions during low load operation by bypassing a controlled amount of discharge gas, which can reduce nuisance freeze ups and improve comfort when the system is cycling lightly. Because correct valve selection depends on the specific unit model, refrigerant circuit, and control strategy, confirm the exact match to your Bard model and serial before ordering so the replacement fits and performs as intended.
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.