An AAON V23590 Thermal Expanion Valve/TXV meters refrigerant flow in response to load conditions, supporting consistent cooling performance when the HVAC unit is in operation.
The thermal expanion valve/txv regulates refrigerant flow into the evaporator so the HVAC system can maintain proper pressure, temperature and cooling performance during operation. Its precise internal design matters because accurate metering supports efficiency, protects the compressor from improper refrigerant conditions and keeps the heating and cooling unit operating reliably.
The thermal expanion valve/txv may be failing if the HVAC system shows poor cooling, inconsistent coil performance, pressure fluctuations or reduced efficiency during operation. Physical signs can include frost buildup, icing near the evaporator, unusual temperature swings or moisture-related issues around the refrigeration circuit that might point to improper refrigerant control.
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