초록 ▼

A direct ignition gas burner control system includes an igniter, two serially-arranged gas valves for controlling the flow of gas to the burner, and a microcomputer and related circuitry for controlling energizing of the igniter and valves. The microcomputer and its related circuitry provide for num

A direct ignition gas burner control system includes an igniter, two serially-arranged gas valves for controlling the flow of gas to the burner, and a microcomputer and related circuitry for controlling energizing of the igniter and valves. The microcomputer and its related circuitry provide for numerous options in system functions and for numerous checks on the integrity of the system components.

대표청구항 ▼

In a gas burner control system, a burner; two electrically operated valves connected fluidically in series with said burner, each of said valves having a controlling electrical winding; an electrical resistance igniter for igniting said burner; means for effecting energizing of said igniter; means f

In a gas burner control system, a burner; two electrically operated valves connected fluidically in series with said burner, each of said valves having a controlling electrical winding; an electrical resistance igniter for igniting said burner; means for effecting energizing of said igniter; means for monitoring the level of energizing of said igniter and for varying an igniter warm-up time period in response to said monitoring; and means for effecting sequential opening of said valves and for effecting a reverse order of said sequential opening on alternate burner cycles so as to determine if none, one, or both of said electrical windings are open, shorted, or energized.