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Bard part number 5651-245 is an OEM electronic expansion valve (E2V24) used in Bard wall mounted HVAC equipment to meter refrigerant flow into the coil and help the control system maintain proper superheat across changing loads. When an EEV sticks, leaks internally, or fails electrically, you can see poor capacity, unstable suction pressures, nuisance safeties, or icing, so replacing it with the correct Bard specified valve is critical for reliable operation and proper refrigerant control. As with any refrigerant circuit service, verify the exact unit model and the required EEV controller compatibility, and have installation performed by a qualified technician following Bard service procedures for evacuation and recharging.