| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a hot water storage type hot water supply system capable of restraining a large change in hot water temperature when the hot water preset temperature is a hot water upper limit temperature. <P>SOLUTION: This hot water storage type hot water supply system includes: a hot water storing tank; a mixing unit for mixing hot water from the hot water storing tank with city water to perform temperature control; a heat source unit for heating the hot water from the mixing unit when necessary; a hot water supply temperature setting means for obtaining a hot water supply preset temperature; an ignition detecting means for detecting whether or not the heat source unit is ignited; and a controller. The controller causes the mixing unit to first perform temperature control at a first target mixing temperature lower than the hot water supply preset temperature when the temperature of hot water in the hot water storing tank is below the reference temperature based on the hot water supply preset temperature in the case that the hot water supply preset temperature is the hot water supply upper limit temperature, and then ignite the heat source unit, and causes the mixing unit to perform temperature control at a second target mixing temperature lower than the first target mixing temperature after ignition of the heat source unit is detected. <P>COPYRIGHT: (C)2008,JPO&INPIT</p> |
