Nordyne 669566R 3-Ton Thermal Expansion Valve R410A Externally Equalized

Nordyne 669566R 3-ton external equalization thermal expansion valve (TXV) for R410A refrigerant. It is an important component to air conditioning and heat pump system, especially Nordyne units, which regulate the flow of refrigerant into the evaporator coil. It works by sensing the evaporator outlet temperature and pressure and adjusting the refrigerant flow to maintain the better superheat. The external equalization improves accuracy by taking into account pressure drops in the evaporator. This TXV ensures correct refrigerant flow to maximize cooling performance and protect the compressor for the system’s longevity.