Heat pump water heater and heat pump water heater control method

摘要

PROBLEM TO BE SOLVED: To improve boiling efficiency while suppressing a concern about noise of a user or the like during boiling operation. A heat pump hot water supply device 1 includes an air heat exchanger that exchanges heat between air and a refrigerant, and has a heat pump circuit that heats water with the refrigerant and a blower 8 that blows air to the air heat exchanger. The heat pump unit 2, the noise determination unit 51 for determining whether or not noise is generated due to a meteorological phenomenon during the boiling operation, and the noise determination unit 51 have determined that no noise is generated. In this case, the rotation speed of the blower 8 during the boiling operation is controlled to the first rotation speed, and when the noise determination unit 51 determines that noise is generated, the rotation speed of the blower 8 is changed to the first rotation speed. A blower control unit 54 that controls a second rotation speed higher than the number is provided. [Selection diagram] Fig. 2