10/28
TF6751_D
Aereco S.A.
3.3.
Case of an individual duct
”
For a rectangular duct, the constraints are the following:
▪
The top platform must be rectangular and measure at
least 600 x 600 mm.
▪
The opening cross-section of the duct must not exceed
245 x 245 mm if it is desired to avoid reducing its cross-
section.
▪
The fan must be centered on the duct.
For a circular duct, the constraints are the following:
▪
The top platform must be rectangular and measure at
least 600 x 600 mm.
▪
The opening cross-section of the duct must not exceed
Ø350 mm if it is desired to avoid reducing its cross-section.
▪
The fan must be centered on the duct.
3.4.
Case of ducts grouped under a single fan
For all grouped duct configurations, an adaptation plenum is necessary. The plenum must:
▪
provide a top platform measuring at least 600 x 600 mm.
▪
provide a circular outlet Ø350 mm centered on the stack
▪
ensure a height of air of at least 180mm between the end of the stack and the outlet section Ø350 mm.
▪
The fan must be centered on the outlet section Ø350 mm.
Example of a typical stack of the collective and individual type:
