| 摘要 |
In a central heating installation with a heat pump 1, boiler 2, radiator heating system and main circulator 8, the return temperature of hot water is detected at 11, and it is sent to a minicomputer 15 which also receives the ambient temperature 12 and the outside temperature 14, 15, keeps a proportionality between the hot water return temperature, detector 11, and the difference between the ambient temperature, detector 12, and the outside temperature, detector 14, that is to say a linear relationship whose slope can be altered at 15 in the event that the heat is insufficient or too much as detected by 12. The boiler 2, normally short-circuited by 34, is put into service when the pump proves to be insufficient at the end of a defined time. <IMAGE> |
