Patent ID: 7640763
Filing Date: 2010-01-05
Classification: F24D,F24F,F25B

Abstract:
1. A hot water supply system which, in addition to being capable of operation to supply hot water to a utilization side, is also capable of operation to supply to a heat utilization unit ( 45 ) a heating medium as a heating fluid having an intermediate temperature lower than the temperature of the hot water, the hot water supply system comprising: (i) a heating medium passageway ( (ii) a first refrigerant circuit ( (iii) a second refrigerant circuit ( wherein the second refrigerant circuit ( 60 ) comprises an evaporator which causes the second refrigerant to exchange heat with the heating medium in the heating medium passageway ( 40 ) and which constitutes a heat pump using the heating medium in the heating medium passageway ( 40 ) as a heat source.