The component of a refrigeration system which changes a high pressure vapor to a high pressure liquid is the:

Refrigeration system works by using the process to transport heat from one place to another. There are six main components of refrigeration system: Thermostatic Expansion Valve, Evaporator, Capacity Control System, Compressor, Condenser and Receiver. Every component have its own function to do.

Condenser is the component of a refrigeration system which changes a high pressure vapor to a high pressure liquid.