You are correct in your basic understanding of the process. There is,
however, one additional thing that you may not be aware of and that is the
phase change that the refrigerant undergoes as it moves through the system.
The compressor compresses the refrigerant vapor (which heats it) and sends
it to the condenser where it is cooled and changed to liquid (like steam
changing to liguid water). The pressurized liquid refrigerant is expanded
to a lower pressure and vaporized in the evaporator where it “soaks up” the
heat from the car interior, thereby keepin you cool and comfortable. Thank
goodness for Dr. Carrier’s invention. He helped make our lives more pleasant.
Everett Turner 90 VDP