| 摘要 |
A heat pump system includes a refrigerant circuit, an inlet temperature sensor measuring a heat exchanger inlet temperature of an aqueous medium in a usage-side heat exchanger of the refrigerant circuit, an outlet temperature sensor measuring a heat exchanger outlet temperature of the aqueous medium in the usage-side heat exchanger, a variable-capacity circulating pump circulating the aqueous medium inside a hot-water circuit of a loop, and a controller. The controller controls refrigerant-side circulation rate in the refrigerant circuit to bring a temperature of the aqueous medium at the outlet of the usage-side heat exchanger to a targeted first target temperature, and operating capacity of the circulating pump to bring a medium temperature differential of the aqueous medium between the outlet and the inlet of the usage-side heat exchanger to a targeted second target temperature differential. |
