Air cooling

Using air that is blown into the condenser by a fan is the traditional way of removing heat. It is important that the compressor compartment is properly ventilated, allowing air to enter at the bottom and hot air to exit at the top.

Seawater cooling

Use surrounding water to increase cooling efficiency, with integral seawater pumps to circulate cooling water through the compressor cooling section of the refrigerator.
Seawater cooled units are extremely efficient and offer better cooling capacity.