Patent ID: 8033128

Claim:
Heat pump assembly for seasonal balancing of temperatures in buildings, comprising: a heat pump ( 1 ) having a cold side and a warm side, respectively; and heat exchangers ( 2 , 3 ) connected to said cold and said warm side, respectively, wherein one of the heat exchangers ( 3 ) is connected to a heating/cooling element ( 4 ), and wherein the other heat exchanger ( 2 ) is connected to a heat/cold buffer ( 6 ), arranged to receive and emit, respectively, thermal energy from and to the ground or from sea water, wherein a valve assembly ( 7 ) is arranged in the heat pump ( 1 ) to connect the warm or cold side of the heat pump ( 1 ) to the heating/cooling element ( 4 ), whereby the heating/cooling element ( 4 ) heat or cool, wherein the heat pump ( 1 ) is of the type liquid-liquid, and wherein said heat pump comprises three closed loops for liquid, the three closed loops including i) a first loop connected to the heat/cold buffer and the first heat exchanger, ii) a second loop arranged in the heat pump, connected to both heat exchangers, and iii) a third loop connected to the second heat exchanger and to the heating/cooling element, during operation, thermal energy is transferred, via the heat pump, i) in a first configuration, from the liquid in the first loop to the liquid in the third loop and ii) in a second configuration, from the liquid in the third loop to the liquid in the first loop.