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General information
EQUIVALENT NUMBER
LENGTH LENGTH
DUCT PIECES
USED
EQUIVALENT

r*
5
* IMPORTANT: 



x =
 x  = 
  x  = 
  x  = 
  x  = 
  x  = 
  x  = 
  x  = 
S  
  x  = 
Total Du ctw ork = F t.
Maximum duct length:


Elbows, transions, wall and roof caps, etc., 



NOTE: 
should not exceed 140 equivalent feet.

NOTE: 
Also, make sure dampers swing freely and nothing is
blocking the ducts.
Exhaust connecon:

Do not use less than a 6"diameter
duct.
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