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The Bard 535-397BX is an OEM right side copper chase assembly used in Bard wall mount air conditioner cabinet designs to protect and route refrigerant copper tubing where it passes through the unit structure. This internal sheet metal component helps keep the line set organized and shielded from abrasion and vibration, supporting long term reliability and cleaner service access during maintenance or repairs. When replacing the copper chase, confirm right hand orientation and match the part number to your unit’s parts list to ensure proper fit on the intended Bard chassis.
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.