发明名称 Hot water apparatus and failure notification method for hot water apparatus
摘要 An indirect-heating hot water apparatus is designed to correctly detect clogging in a secondary water circuit at low costs. A hot water apparatus is provided with: a primary water circuit in which water heated by absorbing heat from a refrigerant at a heat exchanger circulates; a secondary water circuit connected to the primary water circuit via a heat exchanger, in which water circulates; and a tank connected to the secondary water circuit, in which the water circulating in the secondary water circuit is stored. The hot water apparatus detects the temperature of the water circulating in the primary water circuit and the temperature of the water stored in the tank. When the temperature of the water circulating in the primary water circuit is at or above a first threshold and the temperature of the water stored in the tank is at or below a second threshold, the hot water apparatus issues a notification indicating that the secondary water circuit is clogged.
申请公布号 US9625165(B2) 申请公布日期 2017.04.18
申请号 US201514662278 申请日期 2015.03.19
申请人 Mitsubishi Electric Corporation 发明人 Minamisako Hirokazu;Takeyama Kei
分类号 F22B37/42;F24H9/20;F24D19/10;F24D19/00;F24H4/04;F24H1/20;G08B21/18 主分类号 F22B37/42
代理机构 Posz Law Group, PLC 代理人 Posz Law Group, PLC
主权项 1. A hot water apparatus comprising: a fluid circuit in which a fluid heated by a heat source circulates: a water circuit, connected to the fluid circuit via a heat exchanger, in which water circulates; a tank, connected to the water circuit, in which the water absorbing heat from the fluid at the heat exchanger is stored; a fluid temperature detector that detects a fluid temperature of the fluid circulating in the fluid circuit; a tank temperature detector that detects a tank temperature of the water stored in the tank; and a controller, the controller is configured to: determine whether clogging exists by determining both of: (i) whether the fluid temperature detected by the fluid temperature detector is at or above a first threshold, and (ii) whether the tank temperature detected by the tank temperature detector is at or below a second threshold,when both of: (i) the fluid temperature detected by the fluid temperature detector is determined to be at or above the first threshold, and (ii) the tank temperature detected by the tank temperature detector is determined to be at or below the second threshold: issue, to a user, a notification indicating that the water circuit is clogged, andwhen at least one of (i) the fluid temperature detected by the fluid temperature detector is determined to not be at or above the first threshold, and (ii) the tank temperature detected by the tank temperature detector is determined to not be at or below the second threshold: do not issue, to the user, the notification indicating that the water circuit is clogged.
地址 Tokyo JP