The Amana-Goodman 0151R00209S Thermal Expansion Valve (TXV) is a refrigerant metering component designed for use in compatible Amana and Goodman air conditioning systems and heat pumps. It regulates the flow of refrigerant into the evaporator coil by adjusting the opening based on refrigerant temperature and pressure. This process helps maintain proper superheat and supports efficient... https://www.partshnc.com/0151r00209s-amana-goodman-thermal-expansion-valvetxv