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TF6751_D
Aereco S.A.
3.5.
Case of ducts grouped under 2 fans
For all grouped duct configurations, an adaptation plenum is necessary.
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The plenum, even if made in a single piece, must provide 2 distinct volumes, perfectly sealed from one
another.
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For each of the 2 units, the plenum must provide a circular outlet Ø350 mm centered as closely as
possible on the grouped duct.
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The plenum must ensure a height of air of at least 180 mm between the end of the stack and the
outlet sections Ø350 mm.
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The fans must be centered on the outlets Ø350 mm.
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Each 350 mm outlet must be at least 1,000 mm from the other and at least 500 mm from the bulkhead
separating the volumes.
The plenum must provide 2 virtual platforms measuring at least 800 x 600 mm each (see example below).
Example of grouping of 8 individual ducts:
