F - Mech Eng,Light,Heat,Weapons – 24 – H
Patent
F - Mech Eng,Light,Heat,Weapons
24
H
F24H 9/20 (2006.01) F23N 5/24 (2006.01)
Patent
CA 2140981
A forced air furnace control system for preventing the buildup of dangerous concentrations of CO gas within a building airspace. A CO sensor is mounted in the air exit plenum of the furnace and connected in a circuit which produces an output signal when the concentration of CO gas in the plenum reaches a predetermined unsafe level. A disable control signal is then triggered through the circuit for switching the furnace to its nonoperating mode. A latch circuit is provided for latching the furnace control in the nonoperating mode independent of the disable control signal. A reset circuit is provided to manually override operation of the latch circuit and re-enable the furnace control for switching to the operating mode.
Hilt Fay E. J.
Locke James W.e.
Hilt Fay E. J.
Locke James W.e.
Smart & Biggar
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