| 摘要 |
PROBLEM TO BE SOLVED: To provide a heat-pump-type warm-water heater capable of improving heat pump efficiency with a simple mechanism by controlling the temperature of warm water circulating through warm water piping connecting a heat exchanger with a load in accordance with the outdoor air temperature. SOLUTION: A heat-pump-type warm-water heating system, in which a heat- pump-type outdoor unit 1 is connected to a heat exchanger 3 by way of refrigerant piping 2 and the heat exchanger 3 is connected to a load 5 by way of warm- water piping 6, comprises thermistors 7 and 8 for detecting the temperatures of the outdoor air and warm water circulating through the warm-water piping, respectively, to control the compressor of the outdoor unit 1 such that the temperature of the warm water becomes low when the outdoor air temperature is high while the temperature of the warm water becomes high when the outdoor air temperature is low. |
