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    • 4. 发明授权
    • HOT WATER APPARATUS AND FAILURE NOTIFICATION METHOD FOR HOT WATER APPARATUS
    • HEISSWASSERVORRICHTUNG在FEHLERBENACHRICHTIGUNGSVERFAHRENFÜRDIE HEISSWASSERVORRICHTUNG
    • EP2966367B1
    • 2017-03-29
    • EP15163562.0
    • 2015-04-14
    • Mitsubishi Electric Corporation
    • Minamisako, HirokazuTakeyama, Kei
    • F24D19/00F24D19/10F24H4/04F24H9/20
    • F24D19/1051F24D19/0092F24D19/1039F24D19/1066F24H1/208F24H4/04F24H9/2007G08B21/182
    • An indirect-heating hot water apparatus is designed to correctly detect clogging in a secondary water circuit at low costs. A hot water apparatus 100 is provided with: a primary water circuit 27 in which water heated by absorbing heat from a refrigerant at a heat exchanger 21 circulates; a secondary water circuit 28 connected to the primary water circuit 27 via a heat exchanger 23, in which water circulates; and a tank 26 connected to the secondary water circuit 28, in which the water circulating in the secondary water circuit 28 is stored. The hot water apparatus 100 detects the temperature of the water circulating in the primary water circuit 27 and the temperature of the water stored in the tank 26. When the temperature of the water circulating in the primary water circuit 27 is at or above a first threshold and the temperature of the water stored in the tank 26 is at or below a second threshold, the hot water apparatus 100 issues a notification indicating that the secondary water circuit 28 is clogged.
    • 间接加热热水装置被设计成以低成本正确检测二次水回路中的堵塞。 热水装置100具备:初级水回路27,通过从热交换器21的制冷剂吸收热而加热的水循环; 经由热交换器23连接到主水回路27的二次水回路28,水循环; 以及连接到二次水回路28的罐26,其中存储在二次水回路28中循环的水。 热水装置100检测在一次水回路27中循环的水的温度和储存在罐26中的水的温度。当在一次水循环27中循环的水的温度等于或高于第一阈值 并且储存在罐26中的水的温度处于或低于第二阈值时,热水装置100发出指示二次水回路28堵塞的通知。