| 摘要 |
PURPOSE:To operate each of heat-collecting circuits at maximum heat-collecting efficiency by a method wherein the position of a temperature-difference signal for controlling a heat collection pump is changed over simultaneously with changing over the heat-collecting circuit. CONSTITUTION:A heat-transmitting medium is circulated sequentially through a heat collector 1, a bypass pipe 8 for cooling and heating, a heat-collection three-way valve 3 for cooling and heating, a bypass pipe 9 for hot water supply and a three-way valve 7 for hot water supply, constituting a rapid heating circuit. When the temperature of the medium is low and the amount of the solar radiation available is small, i.e. in the morning, the temperature is raised rapidly by the rapid heating circuit without accumulating heat in a heat accumulator 2 for air conditioning or in a heat accumulator 5 for hot water supply. When the temperature of the medium has reached a temperature sufficiently high to operate an air conditioner 13, a comparator is operated by the change in the resistance of a thermistor of a temperature detector 10, a current is passed through a relay coil to open a relay contact, thereby stopping the supply of current to a solenoid coil. |
