Gas furnace with variable speed draft inducer

Gas furnace with variable speed draft inducer

A method of controlling a variable speed draft inducer motor and fan in a gas furnace. The method comprises the steps of: detecting a first fault driving the motor to a maximum operating range; detecting a second fault forcing the motor to operate towards a minimum operating range; and generating a...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: HUGGHINS G. JEFFREY, HELT ROBERT W, HOLMES LEONARD W, VERSHAW JAMES T, STORM TIMOTHY W
Format: Patent
Sprache:eng
Schlagworte:
BLASTING
COMBUSTION APPARATUS
COMBUSTION PROCESSES
HEATING
LIGHTING
MECHANICAL ENGINEERING
REGULATING OR CONTROLLING COMBUSTION
WEAPONS
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Beschreibung
Zusammenfassung:A method of controlling a variable speed draft inducer motor and fan in a gas furnace. The method comprises the steps of: detecting a first fault driving the motor to a maximum operating range; detecting a second fault forcing the motor to operate towards a minimum operating range; and generating a fault signal if both faults are detected substantially simultaneously.