1. Grille Tab Option for Fire Smoke and A GREENHECK Combination Fire Smoke Dampers DFD amp FD Series dae Instructi for Single Sid FSD Series Nstallation Instructions tor single side SMD series Retaining Angle Supplement Part 462099 for additional details Application The grille option for Fire Combination Fire Smoke and Smoke Dampers provides mounting tabs on the sleeve to ease installation of grilles in the field The tabs are made out of 20 gauge 1mm galvanized steel 3 4 inch x 2 in long 19mm x 51mm with 149 in 3 8mm diameter hole for fastening of grille The flanges are concealed when the grille is installed The grille option is limited to 48 in x 48 in 1219mm x 1219mm 3 4 in HEIGHT 1 2 HEIGHT i BOTTOM TOP ma WIDTH Curtain style FD DFD series HEIGHT i J 1 2 HEIGHT BOTTOM WIDTH Multi blade DFD series FSD series amp SMD series A i Copyright 2008 Greenheck Fan Corporation Grille option for Fire Combination Fire Smoke Smoke Dampers Rev 3 July 2008 P O Box 410 Schofield WI 54476 0410 715 359 6171 greenheck com