초록 ▼

A method and apparatus for controlling the temperature of a space. The actual heat load for a space under the conditions prevailing at a time is determined based upon information available to a temperature sensor. The average heating/cooling percentage rate for relatively short duty cycles is adjust

A method and apparatus for controlling the temperature of a space. The actual heat load for a space under the conditions prevailing at a time is determined based upon information available to a temperature sensor. The average heating/cooling percentage rate for relatively short duty cycles is adjusted based on this information whereby the actual heating/cooling load during this duty cycle interval may be approximately matched. The percentage rate may be overridden in the event an abnormal temperature situation exists. The method and apparatus of this invention has particular application when utilized with radiant heaters.

대표청구항 ▼

Apparatus for controlling the temperature of a space; said apparatus comprising: a periodically operated unit capable of modifying the temperature of a space: a normal temperature sensor capable of sensing the temperature of said space and of providing either a normal unit start signal when the temp

Apparatus for controlling the temperature of a space; said apparatus comprising: a periodically operated unit capable of modifying the temperature of a space: a normal temperature sensor capable of sensing the temperature of said space and of providing either a normal unit start signal when the temperature of the space attains a designated normal start set point for the unit or a unit stop signal when the temperature of the space attains a designated stop set point for the unit; and control means operationally interconnected with said unit and said normal temperature sensor and capable during operation of the control means of establishing “on”and “off”base time periods and a plurality of unit duty cycles of varying percentages of unit operational time commencing an “on”operational mode when said control means receives a normal unit start signal, the unit being caused to operate at one of said plurality of unit duty cycles during an “on”operational mode, the initial “on”operational mode after startup being at an initial duty cycle of 100%, and also commencing and “off”operational mode when said control means receives a unit stop signal, the unit being caused to not operate during an “off”operational mode, comparing the duration of “on”and “off”operational modes with the “on”and “off”base time periods, respectively and varying the unit duty cycle by reducing the percentage of unit operational time if the duration of the “off”operational mode exceeds the “off”base time period and increasing the percentage of unit operational time if the duration of the “on”operational mode exceeds the “on”base time period.