Fuel burner control device providing safely ignited burner

Claim 1

A fuel burner control device to sequence and monitor the operation of a fuel burner, said burner including a fuel valve means, said device, including: programmer means having sequencing means for controlling electric circuit means to a plurality of output terminal means; said programmer means further including flame responsive circuit means including input terminals adapted to be connected to a flame sensor; said programmer means including safety switch means which is responsive to said electric circuit means and said flame responsive circuit means to operate to safely terminate said fuel burner operation during predetermined portions of the operation of said programmer means; said programmer means upon initiation thereof completing a circuit to first output terminal means adpated to energize fuel pressure and combustion air means for said fuel burner while keeping said fuel valve means closed, and completing a circuit to second output terminal means which is adpated to energize ignition means to ignite fuel at said fuel burner in the event that fuel is inadvertently present after the initiation of operation; said electric circuit means deenergizing said second output terminal means to turn off said ignition means while said flame sensor monitors said fuel burner for a flame when none should be present, and wherein the presence of a flame would operate said safety switch means; and said electric circuit means again energizing said second output terminal means and further circuit means to said output terminal means to energize said ignition means to operate said fuel burner in a preselected burner sequence which includes said safety switch means operating when said flame sensor fails to detect a flame at said fuel burner when flame should be present.