| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a water temperature control device for suppressing that a sensible temperature increases or decreases against user's will because of not being able to cope with an environmental temperature.SOLUTION: A water temperature control device comprises a hot and cold water mixing valve for adjusting hot and cold water to a predetermined temperature to discharge, and a control unit for controlling operation of the hot and cold water mixing valve. The device comprises an environmental temperature detection unit for detecting a temperature of water flowing into the hot and cold water mixing valve, a peripheral temperature of the hot and cold water mixing valve, or a temperature of an outside air. The control unit controls the hot and cold water mixing valve so that an average value of the temperature of the hot and cold water to be discharged is lower than a preset temperature, and the temperature of the hot and cold water to be discharged is changed between a predetermined upper limit temperature and lower limit temperature to be determined on the basis of the preset temperature. Even when the preset temperature is the same, when the environmental temperature detected by the environmental temperature detection unit is low, the lower limit temperature and the average value are determined to be higher than those when the environmental temperature is high.</p> |
