HEAT PUMP TYPE HOT WATER SUPPLY APPARATUS

摘要

PROBLEM TO BE SOLVED: To provide a heat pump type hot water supply apparatus capable of surely boiling up even when the heating capacity of a heat pump unit cannot be sufficiently exhibited.

SOLUTION: A control section 30 controls a first boiling-up three-way valve 25 and a second boiling-up three-way valve 26 based on a target boiling-up temperature and a return temperature detected by a temperature sensor T10 in boiling-up operation by the heat pump unit 1 and a heater 23. When the return temperature detected by the temperature sensor T10 is lower than a preset temperature during boiling-up operation using both of the heat pump unit 1 and the heater 23, the control section 30 stops the heat pump unit 1 and carries out boiling-up by the heater 23.

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