| 摘要 |
PROBLEM TO BE SOLVED: To provide a water supply warming system that successively changes a hot water tapping amount from a heat pump on the basis of a water level in a water supply tank, and follows use load of hot water in the water supply tank quickly and can manufacture hot water.SOLUTION: A heat pump 4 can change its output. To a water supply tank 3, water can be supplied by a water supply passage 8 through a condenser 13 of the heat pump 4, and water can be supplied by a make-up water passage 9 without passing through the condenser 13. The output of the heat pump 4 is controlled so as to keep a water level in the water supply tank 3 to a setting water level. A water supply pump 10 is subjected to inverter control so as to keep a detection temperature of a hot water tapping temperature sensor 22 to a setting temperature during water supply to the water supply tank 3 through the water supply passage 8, and thereby a water flow amount is adjusted. |
