| 摘要 |
<p>PURPOSE:To distribute an average electric load to reduce heat dissipating loss by a method wherein the operating times of heating bodies for a plurality of hot-water reserving type water heater are controlled concentrically by a central control unit. CONSTITUTION:A plurality of hot-water reserving type electric water heaters 1, 2 are provided with feed water temperature sensors 3, 3', feed water temperature signals are sent to the receiver 11 of a central control unit 9 by transmitters 10, 10', necessary amount of heat to raise the temperature to the set value of hot-water temperature is operated by an operator 6, necessary times for conducting respective electric water heaters are operated by the operator 7, a timer control unit 8 controls the timer apparatuses 5, 5' of respective electric water heaters 1, 2 through the transmitter 12 and receivers 13, 13' to distribute the necessary conducting times so as to distribute the average electric load to each electric water heaters and, thus, the conductions of the heating bodies are controlled.</p> |
