| 摘要 |
The invention relates to a control for an installation (1) for heating water which comprises both heat and electrical power installations (3,4) and classical boilers (2). The installation comprises operation determining means which are adapted for setting the heating devices into operation, such that the realized power is smaller than or equal to the desired power and for only setting the heating device of the second type (3,4) into operation, when the desired power is greater than a factor times the nominal power of the device of the second type. Such a known device results in a good control of the operation of the water heating units, although practical experience has shown that the water heating devices of the second type (3,4) which are adapted for generating mechanical power simultaneously with heating of the water, also known as heat and electrical power installations, are switched on and off frequently. <IMAGE> |
