Gas furnace control system

Details Gas furnace control system Gas furnace control system

1988-02-16

1988-12-06

Wayner, William E.

Combustion

Timer, programmer, retarder or condition responsive control

By combustion or combustion zone sensor

110162, 126116A, 236 9R, F24H 300

Patent

active

047893303

ABSTRACT:
The control system of an induced draft furnace includes a provision for turning on the inducer motor when a flame is sensed outside of the normal sequence of a heating operation. In particular, if the thermostat is in the off position when a flame is sensed, the inducer motor is turned on to ensure that sufficient combustion air is provided to the burner so as to forestall the occurrence of flame roll outs in the event that the gas valve is stuck in a closed position.

REFERENCES:
patent: 2352143 (1944-06-01), Wills
patent: 3765820 (1973-10-01), Ito et al.
patent: 4403942 (1983-09-01), Copenhaver
patent: 4688547 (1987-08-01), Ballard et al.

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