| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a combination faucet capable of improving a temporal large change of a discharged water temperature in the midst of changing its flow rate when changing a discharged water flow rate without changing the discharged water temperature before and after changing the flow rate. <P>SOLUTION: The combination faucet 10 includes a water temperature sensor 30, a water flowmeter 28 and a water side flow adjustment valve 26 provided on a water supply path 18, and a hot water sensor 42, a hot water flowmeter 40 and a hot water side flow adjustment valve 38 provided on a hot water supply path 20. When changing the discharged water flow rate without changing the discharged water temperature, a change in flow rate from an initial total flow rate of hot water before changing the flow rate to a final total flow rate after changing the flow rate is divided into a plurality of stages and flow rate changing is sequentially executed by setting a target total flow rate per stage, a target water quantity and a target hot water quantity are calculated from the target total flow rate in stage-based flow rate changing, a time that flow rates detected by the water flowmeter and the hot water flowmeter reach calculated flow rates is set as a target flow rate reach time, and then the flow rates are changed until reaching the final total flow rate by being shifted to the next stage flow rate changing and then performing similar flow rate changing at respective stages. <P>COPYRIGHT: (C)2013,JPO&INPIT |
