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Filter Control - Traditional Solution

Application Description | New standard | Energy Savings
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Traditionally, no control is utilized in true CAV systems. Once the system is balanced, no air flow capacity modulation is possible for the system or the fan. When the filters are new, the resistance of the filter is very low. This actually causes air to flow in excess of design conditions increasing energy consumption and decreasing the life of the filters. As the filters become clogged, the resistance increases to the filterís maximum rating level, then they are replaced. A differential pressure sensor is commonly utilized to monitor the filters and identify when the filters should be changed.


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