duct with out gaps. Next, make sure that the (4)
four pre-punched holes in the bottom
mounting block and the (4) holes drilled in step
2A align perfectly. Insert a 3/16” stainless steel
pop rivet into each of the (4) four holes and
rivet into place with the pop rivet gun.
E.
Apply a duct sealant around the entire outer
edge of the bottom mounting block and on
each of the (4) rivets (Fig. 5s). The installation of
the bottom mounting block is complete.
F.
Insert bag/gasket assembly over bolt holes
making sure dual polybags protrude through 2
inch hole in bottom mounting block.
Stainless Steel and Galvanized Ductwork Model Installation and Maintenance Manual – 37
Fig. 4s
Fig. 5s
