Nordyne 669845R Thermal Expansion Valve R-410A

The Nordyne 669845R Thermal Expansion Valve is an essential piece of equipment for R-410A heating, ventilating, and air conditioning (HVAC) systems. It regulates the flow of coolant into the evaporator in order to achieve optimal cooling. The valve modifies the rate of expansion in response to temperature differences between the compressor and evaporator coils. Such precision ensures effective operations by avoiding both undercooling and overcooling. Commonly used in heat pumps and air conditioners, its benefits include higher energy efficiency, uniformity of temperatures throughout the process as well as extended durability.