| 摘要 |
<p>1. A process of controlling the flow or return temperature or a temperature derived therefrom of a heating fluid which circulates in a heating system, wherein a controller (14) provided with an outdoor temperature sensor (23, 69) generates a control signal for a final control element, which is included in the heating system and controls one of said temperatures in such a manner that a change of the respective temperature of the heating fluid is effected in dependence on the outdoor temperatur when the latter is in a first range and said change is effected in dependence on a continuous functional relationship between the outdoor temperature and the respective temperature of the heating fluid, which relationship is determined by the controller, said final control element holds the respective temperature at a constant minimum value when the outdoor temperature is in a second range, which is above and adjoins the first range, and said minimum value corresponds to the lowermost value of said temperature which is determined by said relationship in the first range, characterized in that the respective temperature of the heating fluid is lowered by the control signal to a constant low value, which is below the minimum value and below the values determined by said relationship, when the outdoor temperature is in a third range, which is above and the second range.</p> |
