| 摘要 |
The invention relates to a boiler control unit ( 20 ) for controlling a burner ( 2 ) in a heating boiler ( 1 ) controlled by a thermal relay ( 6 ). The control unit ( 20 ) includes a delayed cycle controller ( 21 ) which overrides the thermal relay ( 6 ) control and thus delays the activating of the boiler. The delay is dynamically alterable by the controller, based on changes in the temperature of the boiler outlet temperature.
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