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US 7,351,274 B2Granted
Air filtration system control
AssigneeAmerican Standard International Inc.
InventorsRobert W. Helt, Stephen J. Vendt, Roger L. Boydstun, J. Mark Hagan
Life of this patent
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AssigneeAmerican Standard International Inc.
InventorsRobert W. Helt, Stephen J. Vendt, Roger L. Boydstun, J. Mark Hagan
Estimating the term…
An intense field dielectric air filtration system associated with an air conditioning unit includes a microprocessor based control system which may be connected to the thermostat of the air conditioning unit to energize the air filtration system in response to a call for heat or cooling signal at the thermostat or startup of the fan motor for the air conditioning unit. The control system includes a power supply for the air filtration system together with voltage and current monitoring circuits for detecting a fault condition. Filtration system on/off and timing function reset switches are connected to the microprocessor and visual displays, including a multicolored LED bargraph display, are controlled by the microprocessor to indicate voltage potential applied to the air filtration system, a fault condition or a test mode.
In an air filtration system for an air conditioning unit, said filtration system including at least one filter unit mounted on support structure and including an array of passages through which an air flowstream may pass relatively free and through a high voltage electric field for collecting particles on said filter unit from said air flowstream, and an electric field charging unit mounted on said support structure upstream from said filter unit with respect to the direction of airflow through said filtration system, a control system for said filtration system including:
In an air filtration system for an air conditioning unit, said filtration system including at least one filter unit mounted on support structure and including an array of passages through which an air flowstream may pass relatively free and through a high voltage electric field for collecting particles on said filter unit from said air flowstream, an electric field charging unit mounted on said support structure upstream from said filter unit with respect to the direction of airflow through said filtration system and a control system for said filtration system including a power supply adapted to be operably connected to said field charging unit and said filter unit, a signal input circuit connected to a controller associated with said air conditioning unit, and a microprocessor operably connected to said power supply and said signal input circuit for controlling application of a high voltage potential to at least one of said field charging unit and said filter unit, the method including the step of:
In an air filtration system for an air conditioning unit, said filtration system including at least one filter unit mounted on support structure and including an array of passages through which an air flowstream may pass relatively free and through a high voltage electric field for collecting particles on said filter unit from said air flowstream, and an electric field charging unit mounted on said support structure upstream from said filter unit with respect to the direction of airflow through said filtration system, a control system for said filtration system including:
In an air filtration system for an air conditioning unit, said filtration system including at least one filter unit mounted on support structure and including an array of passages through which an air flowstream may pass relatively free and through a high voltage electric field for collecting particles on said filter unit from said air flowstream, and an electric field charging unit mounted on said support structure upstream from said filter unit with respect to the direction of airflow through said filtration system, a control system for said filtration system including:
Dependencies are inferred from the claim text.