DEVICE FOR ADJUSTING THE ON AND OFF PERIODS OF A BURNER OF A HOT WATER HEATING SYSTEM

摘要

THE INVENTION PROVIDES A DEVICE FOR ADJUSTING THE ON AND OFF PERIODS OF A BURNER 6. THE LATTER HEATS A SMALL HEAT EXCHANGER 5 OF A HOT WATER HEATING SYSTEM COMPRISING SEVERAL RADIATORS. THE HEAT EXCHANGER 5 IS IN SERIES WITH A CIRCULATION PUMP AND MOUNTED IN PARALLEL WITH AN OVERLOAD LINE. A TEMPERATURE DETECTOR MEASURES THE TEMPERATURE T OF THE WATER COMING FROM THE HEAT EXCHANGER 5. THE DIFFERENCE BETWEEN A REFERENCE TEMPERATURE T AND THE TEMPERATURE T MEASURED BY THE TEMPERATURE SENSOR 12 IS APPLIED TO AN INTEGRATER 17. A SWITCH A HYSTERESIS 18 CAUSES STARTING OF THE BURNER 6 WHEN THE INTEGRATION VALUE V REACHES ONE OF THE LIMIT VALUES OF THE SWITCH AT HYSTERESIS, AND THE BURNER SHUTDOWN WHEN THE INTEGRATION VALUE REACHES THE OTHER LIMIT VALUE. THUS, WE OBTAIN RELATIVELY LONG TIMES BETWEEN THE SUCCESSIVE STARTING OF THE BURNER.