Flue damper control system

Details Flue damper control system Flue damper control system

1979-09-28

1981-05-05

Wayner, William E.

Automatic temperature and humidity regulation

Miscellaneous

Burner controls with automatic cutoff

431 20, 126285B, 318471, 318160, 307252B, F23N 300, F23L 1100, G05D 2300

Patent

active

042653940

ABSTRACT:
In a flue damper control system, a thermistor 64 responsive to flue temperatures upstream of the damper 12 is incorporated in a trigger circuit for a triac 52 which controls energization and deenergization of the damper motor 17, the damper motor being fully energized only when the flue temperature is below a predetermined value and there is no demand for heat by the thermostat 36.

REFERENCES:
patent: 3743182 (1973-07-01), Harmon et al.
patent: 3829010 (1974-08-01), Jones
patent: 4017024 (1977-04-01), Grostick et al.
patent: 4046318 (1977-09-01), Ripley

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