Amana-Goodman 0151M00074 Chatleff Thermal Expansion Valve R410A 4-Ton

The Amana-Goodman 0151M00074 Chatleff Thermal Expansion Valve is an essential part of residential and light commercial air conditioning and heat pump systems. This valve exactly controls the flow of refrigerant into the evaporator coil. It is based on the temperature changes in the evaporator. When the refrigerant passes through the valve, its temperature and pressure are held constant to the optimum cooling or heating work. Air conditioners of all types use it, from split systems to packaged units. These heat pumps also need this valve to work properly.