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Bard 8402-229BX is an OEM boxed limit control labeled L210-8.0, used to help protect Bard wall-mount HVAC equipment from overheating by opening its safety circuit at a set temperature and allowing the system to shut down until conditions return to normal. Limit controls like this are commonly used in the electric heat and airflow safety chain where dependable temperature sensing is critical to prevent nuisance trips and component damage. Replace a faulty or out-of-calibration limit control to restore proper safety operation and keep your Bard unit running to factory specifications. Confirm the correct temperature rating, reset type, and mounting style against your Bard parts list for your exact model and serial number before ordering.
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.