HEAT PUMP HOT WATER SUPPLY DEVICE AND CONTROL METHOD OF HEAT PUMP HOT WATER SUPPLY DEVICE

• Main Authors: TAKETSURU TATSUYA, OGAKI YASUYOSHI, KAZAMA SHIRO, TAKEUCHI NORITO, WATANABE YUKA
• Format: Patent
• Language: English; Japanese
• Published: 10.08.2021
• Subjects: BLASTING; FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEATGENERATING MEANS, IN GENERAL; HEATING; LIGHTING; MECHANICAL ENGINEERING; RANGES; VENTILATING; WEAPONS

To improve boiling-up efficiency while suppressing concern about noise of a user and the like in a boiling-up operation.SOLUTION: A heat pump hot water supply device 1 includes: a heat pump unit 2 having a heat pump circuit including an air heat exchanger exchanging heat between air and a refrigerant, and heating water by the refrigerant, and a blower 8 for blowing the air to the air heat exchanger; a noise determination portion 51 for determining whether a situation of generation of noise by weather phenomenon at a time when the boiling-up operation is performed, exists or not; and a blower control portion 54 for controlling a rotating speed of the blower 8 in the boiling-up operation to a first rotating speed when the situation free from the generation of noise is determined by the noise determination portion 51, and controlling the rotating speed of the blower 8 to a second rotating speed higher than the first rotating speed when the situation of the generation of noise is determined by the noise determination portion 51.SELECTED DRAWING: Figure 2 【課題】沸き上げ運転時の使用者等の騒音の懸念を抑えつつ沸き上げ効率を高める。【解決手段】ヒートポンプ給湯装置１は、空気と冷媒との熱交換を行う空気熱交換器を含み、冷媒によって水を加熱するヒートポンプ回路と、空気熱交換器に空気を送風する送風機８とを有するヒートポンプユニット２と、沸き上げ運転を行う時間に気象現象による騒音が発生する状況であるか否かを判定する騒音判定部５１と、騒音判定部５１によって騒音が発生する状況ではないと判定された場合に、沸き上げ運転時の送風機８の回転数を第１回転数に制御し、騒音判定部５１によって騒音が発生する状況であると判定された場合に、送風機８の回転数を第１回転数よりも高い第２回転数に制御する送風機制御部５４と、を備える。【選択図】図２