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Bard 905-0292 is an OEM Heating Expansion Valve Assembly used in Bard wall mounted HVAC equipment to meter refrigerant flow for proper heating operation and stable system performance. When an expansion valve sticks, leaks, or loses its charge, heating capacity and coil temperature control can suffer, so replacing it with the correct Bard valve assembly helps restore designed operation and protects the compressor from improper refrigerant feed. Because expansion valves are application specific by capacity and refrigerant, confirm compatibility by matching the unit model and serial number and referencing the Bard service literature before ordering.