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Bard part 8402-060 is an OEM limit control set up for a 175F open and 105F close temperature action, helping protect the unit by interrupting the heating circuit if temperatures rise beyond the designed limit and allowing operation to resume after the temperature drops. This safety control is commonly used in Bard wall-mounted HVAC equipment that includes electric heat, and it is a dependable replacement when a unit is tripping on high temperature, short cycling on heat, or showing signs of a weak or out-of-calibration limit. Match the temperature ratings and installation style to your unit’s parts list to confirm proper fit and safe operation.