condenser approach is heat transfer the water to gas of condenser efficiency is good less then below (2 F) the system is working good.

The condenser fan moves air across the hot condenser coil. This transfers heat from the hot refrigerant to the cooler ambient air. A fan is not required, but the heat transfer surface would have to be multiple times larger to cause the needed amount of heat transfer.

tube fouling, clogged tube, air leak affects heat transfer.

There is only one condenser. That would be an air condenser.

heat losses in condenser in percentage