| 摘要 |
Provided is a method of controlling the temperature of hot water in a hot water supply system. The flow rate of water flowing into the hot water supply system is measured. Water is preheated/circulated through an internal circulation path connecting a first diverging point, a second diverging point, and a heat exchanger, after a controller stops the combustion of a heating device when the measured flow rate is an operation flow rate of the water supply system or less. The temperature of the water circulating is measured. Predetermined temperature is settled above user set-temperature as preheating circulation-off temperature and predetermined temperature is settled below the set temperature as preheating circulation-on temperature, and operation of the heating device is started when the temperature is the preheating circulation-on temperature or less, and the operation of the heating device is stopped when the measured temperature is the preheating circulation-off temperature or more. |
