Nordyne 664349R 3-Ton Thermal Expansion Valve R-410A EQ

The Nordyne's 664349R 3-Ton Thermal Expansion valve is an essential component of R-410A-powered air conditioning systems. It regulates the refrigerant that enters the evaporator coil, optimizing cooling capacity. This valve uses a pressure-sensitive bulb to measure both refrigerant temperature and pressure, thereby controlling flow. It is commonly found in residential and commercial HVAC systems, including heat pumps, packaged units, and split systems. The thermal expansion valve precisely regulates refrigerant flow to maximize efficiency during operation, minimize system overload, and increase energy efficiency.