14
PNEG-1756
18" and 24" Panel Pit Fan (78° and 90°)
4. Installation
1. Construct a 24" x 32" opening in either the pump-out lid, the horizontal opening or the opening in the
12° sloped top. (Pump-out lid dimensions are the same for 18" and 24" Panel Pit Fans.)
2. If the pump-out lid is concrete, a frame can be constructed around the opening.
3. Caulk around the base of the pit transition flange and secure to the frame, if needed.
