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Series
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In series configurations, the airflow that moves through one airmover is routed through a second airmover. The total flow rate through each airmover is the same but the second airmover “boosts” the pressure. Serial configurations are commonly used with one fantray mounted in the inlet to a system and a second fantray is mounted in the exhaust.
Series systems can also be configured to include multiple airmovers in the same package.
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As the system pressure increases, a series configuration is more desirable. When a series approach is used for redundancy there is an advantage that no backflow moves through the failed airmover, however this
advantage is partially offset by the increased pressure drop caused by moving air through the failed unit.
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