The main differences are: different heat exchange sources, different working principles, and different installations and uses, as follows:
The source of heat exchange is gas, and it is equipped with a dedicated electric fan, so it is called “air cooling”.
The source of heat exchange is water, equipped with a special cooling tower, so it is called “water cooling”.
The air-cooled machine is directly circulated mechanically by air, and the machine’s condensing coil directly expels the heat and cools it by atmospheric air.
The cooling tower and water pump are used to extract hot water for heat dissipation, so that the refrigeration process can be circulated.
It can be moved without other assistance.
The external water tower and pool are required for use.