Isotherm SP units use seawater for cooling. Heat exchange takes place in a water-cooled condenser, which supports efficient system operation. The seawater-cooled Isotherm SP unit operates at very high efficiency. No fans or pumps are needed to remove heat from the condenser, so the system’s energy consumption stays low and it runs very quietly.
The Isotherm SP unit uses the movements of the hull to conduct heat downwards, where the heat is removed through a special sink drain fitting. The flow in the drain pipe is completely free. Water moving around the boat causes a continuous change in the water level in the pipe, so water is constantly moving in and out.
The special hull fitting system includes a free-flow spiral heat exchanger that cools the heated refrigerant. This results in an efficient cooling system. The system is located far from the boat’s centre of gravity, so even a small movement of the hull or a sailboat’s mast triggers a pumping effect. The movement creates a continuous flow of warm water out and cold water in, which also prevents clogging.
Technical data:
Maximum refrigerator volume: 150 l
Maximum freezer volume: 50 l
Weight: 18 kg
Compressor type (Secop): BD50F










