An AAON G005590 Thermal Expanion Valve/TXV meters refrigerant in response to load conditions to maintain steady cooling performance within the unit.
The thermal expanion valve/txv regulates refrigerant flow into the evaporator so the HVAC system can maintain proper superheat and efficient temperature control. Its 3/8" x 7/8" ODF connections and 30" capillary are important because they support correct installation, responsive sensing and stable performance in heating and cooling equipment.
The thermal expanion valve/txv may need replacement if the heating and cooling unit shows poor temperature regulation, reduced cooling capacity, coil icing or abnormal suction and superheat readings. Physical signs can include refrigerant leaks or corrosion around the valve and fittings and you might notice environmental signs such as frost buildup, unusual operating conditions or inconsistent performance during changing load conditions.
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