In what way can a TXV equalize?

A thermal expansion valve (TXV) can equalize internally by managing the refrigerant flow and pressure within the system. The purpose of a TXV is to control the amount of refrigerant that enters the evaporator coil based on thermal load, which is achieved through a pressure-sensing mechanism that regulates the valve's opening and closing.

When the pressures within the TXV equalize internally, it allows for a more efficient operation of the HVAC system by ensuring that the refrigerant expands properly and absorbs the necessary heat from the surrounding environment. This internal equalization process helps to prevent issues such as flooding or starvation of the evaporator coil, thereby optimizing the cooling process and energy efficiency.

While external equalization methods can be utilized in some systems, the primary function of a TXV is tied to its internal mechanism, which is designed to provide accurate control under varying load conditions. Hence, internal equalization is a critical and defining characteristic of TXVs.