Description
The ClimateMaster 33B0002N04 Thermal Expansion Valve is a refrigerant metering part used in cooling systems to regulate the flow of liquid refrigerant into the evaporator coil. It adjusts refrigerant delivery based on load conditions and superheat feedback, helping maintain stable evaporation and preventing liquid refrigerant from returning to the compressor. Installed between the liquid line and evaporator assembly in compatible heat pump and air conditioning units, it supports balanced pressure control, efficient heat transfer, and consistent temperature performance in residential and light commercial applications.
