Amana-Goodman 0151R00174 Thermal Expansion Valve R-410A

The Amana-Goodman 0151R00174 Thermal Expansion Valve is an essential component of air conditioning and refrigeration systems with R-410A coolant. This type of valve allows management of the flow of liquid refrigerant to the evaporator. It operates by detecting temperature and pressure inside the evaporator cavity and controlling the flow of the refrigerant as a result. when the temperature increases, the valve opens fully allowing high flow rates to cool the system and when the temperature is low the valve closes fully to prevent over-cooling of the HVAC system or equipment.