A Heliotherm heat pump is a sensible system to heat a building in winter. Moreover, Heliotherm heat pumps can also provide pleasant cool room temperatures during the summer.
Two possibilities can be considered:
Active cooling (process reversed)
Passive cooling (direct cooling)
In the active cooling process, the refrigeration circuit in the heat pump is fully reversed. The building becomes an energy source - ground, water or outside air instead of the heating system. The heat pump draws the energy from the building and delivers it to the environment.
In passive cooling, the liquid energy source is directed to an external heat exchanger. The heat pump controls the hydraulics so that the heating water flows through the external heat exchanger. The heating water is cooled down by the ground water or brine. The heat pump does not have to work actively; therefore, lowest electric costs maintain the building cool in hot summer days.