Environmental Installations
Saving Energy for your future


Air/water heat pumps utilise the heat energy of the outside air.

The heat pumps are designed for outside placement and transform an existing radiator system into an excellent, complete heating system.

Function of the cooling circuit

The collector liquid (cooling medium) is pumped up from the borehole in tubing and passed to the heat pump.

Another fluid circulates in the heat pump in a closed system with the most important characteristic of having a low boiling point. This fluid is called a refrigerant. When the refrigerant reaches the evaporator, which has received energy from the borehole, the refrigerant evaporates.

The vapour is fed to a compressor where it is compressed. This results in a high increase in temperature.

The warm refrigerant is fed to the condenser, which is positioned in the boiler water. Here the refrigerant gives off its energy to the boiler water, so that its temperature drops and the refrigerant changes state from gas to liquid. The refrigerant then goes via filters to an expansion valve, where the pressure and temperature are further reduced.


The refrigerant has now completed its circuit and is once more fed into the evaporator where it is evaporated yet again due to the effect of the energy that the collector has carried from the energy source.


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