Heat pump-warm water supply and floor heating device

Comprising: a compressor, a hot water supply heat exchanger, hot water supply pressure reducing device, an evaporator formed of hot-water supply heat source circuit; said compressor by the floor heating heat exchanger, floor heating a pressure reducing unit, the evaporator constituting a floor heating with a heat source circuit: floor heating heating floor heating circuit with a circulating heat medium between the heat exchanger and the load floor; hot-water supply heat source circuit and the heating floor a switching unit switches between a cooling medium flow passage of the heat source circuit; and operation control means; the operation control means, according to the heat exchanger returns the floor heating return temperature and the heat medium flows into the floor heating medium in heat exchanger return temperature difference between the setting value, the setting from the forward temperature of the heat medium of the heat load floor heating heat exchanger is supplied to the floor heating target value, controlling the rotational speed of the compressor, so that the temperature of the heat medium becomes Flights destined for the target temperature.