System and method for replacing air filters
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United States of America Patent
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Mar 6, 2018
Issued Date -
N/A
app pub date -
Oct 6, 2015
filing date -
Oct 6, 2015
priority date (Note) -
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Abstract
A system comprising a sensor coupled to a filter having a filter type. The sensor measures pressure drop across the filter and communicates with the controller. An air handler pushes air through the filter and communicates with a controller. The controller comprises an interface connection, a memory, and a microprocessor. The interface connection receives the air flow rate of the air handler and the pressure drop across the filter. The memory stores the relationship between pressure drop and air flow rate for a filter of the same filter type when the filter is clean and when the filter is exhausted. The memory also stores the relationship between pressure drop and the life of a filter of the filter type. The processor determines the remaining life of the filter using the received and stored information. The display receives information from the controller and displays the information.
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