The Hays Cleveland R-09500-B0 Draft Regulator provides sequencing or non-sequencing draft control for positive pressure or balanced draft applications. It is the simplest method to obtain the advantages of draft control: reduce smoke, conserve fuel, and comply with local air pollution ordinances. The Draft Regulator design incorporates in a single compact unit a draft sensor, controller and drive motor to position the damper. On sequencing models, a switch is provided to signal the burner management system. Several standard thrust/stroke time ranges are available. A hand wheel for manual operation is available as an option. Please see also Hays Cleveland Standard Linkage.