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Bard 917-0311BX is an OEM coil assembly boxed for service replacement, used to restore proper heat transfer and refrigerant performance in compatible Bard wall-mount HVAC equipment. When a coil is leaking, restricted, or physically damaged, replacing it with the correct factory coil assembly helps bring capacity, efficiency, and reliability back to spec while maintaining the original fit and connection points expected in Bard packaged units. Because coil assemblies can vary by model and revision, confirm the exact part number against the unit data plate or the Bard parts list before ordering to ensure proper application and installation.
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.