Provides automatic, non-recycling control of an intermittent ignition oil burner system. Controls oil burner, oil valve (if desired) and the ignition transformer in response to a call for heat. Solid state flame sensing circuit. LED on terminal strip indicates system lockout. Enclosed safety switch with external reset button. Manual trip lever opens safety switch for system maintenance. Mounts on standard 4 In. x 4 In. junction box. C554A cadmium sulfide flame detector and 24V thermostat required.