| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a cogeneration system, inexpensively and simply preventing freeze of a water passage. <P>SOLUTION: This cogeneration system 1 includes: a power supply apparatus 11; a hot water supply unit 20; an outside air temperature sensor 90 for obtaining outside air temperature information showing the outside air temperature; an operation control device 80 (an outside air temperature determining part 84) for determining whether or not the outside air temperature is a predetermined temperature or lower based on the outside air temperature information; and an operation control device 80 (an instruction output part 87) for controlling the operation of the power supply apparatus 11 and the hot water supply unit 20, wherein when the outside air temperature reaches a predetermined temperature or lower, the power supply apparatus 11 and the hot water supply unit 20 are put in the operating state to prevent freeze of the water passage. <P>COPYRIGHT: (C)2009,JPO&INPIT |
