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The Bard 8201-167BX is an OEM CRV control board supplied boxed for protected storage and shipping, and it is used in compatible Bard wall-mount HVAC units to coordinate key unit functions through low-voltage control logic. When a unit has intermittent operation, incorrect sequencing, or will not respond correctly to calls for heating or cooling, replacing the correct factory board is often the most reliable way to restore proper communication between inputs and outputs. For best results, verify compatibility by matching the full part number to your Bard model and serial information, and transfer wiring one connection at a time to avoid miswiring during 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.