| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a hot water supply system and its operation mode diagnosis method capable of selecting the optimum operation mode and presenting the same to a user on the basis of use actual performance. <P>SOLUTION: This hot water supply system has a control part 35 for controlling the operation of the hot water supply system on the basis of the operation mode selected from the plurality of operation modes. The control part 35 has an operation standard calculating means 353 calculating operation standard for deciding an additional boiling condition of hot water on the basis of hot water supply quantity and a temperature of supplied hot water within a prescribed time, a use actual performance calculating means 354 calculating the use actual performance indicating the use actual performance of the hot water supply system, and a recommended mode selecting means 355 having a plurality of first applicable conditions decided on the operation standard, the use actual performance or the selected operation mode, and selecting the recommended operation mode corresponding to the satisfied first applicable condition among the plurality of first applicable conditions, and the selected recommended operation mode is displayed on an operation display part 37. <P>COPYRIGHT: (C)2008,JPO&INPIT |
