Grain Systems Bin Accessories PNEG-524 - Manual (Page 16)

5. Installation
16 PNEG-524 Roof Exhaust Fan
24" Roof Fan Mounting and Assembly of Fan, Adaptor and
Rainhood (Continued)
5. Mark a cutting line 3/4" inside the template. Then remove template. Drill through the mark, cutting a
hole in the roof sheet. (See Figure 5H.)
6. Pre-assemble the adaptor section parts of the roof fan. Loosely bolt the adaptor left side and
right side to adaptor top. On all components, bolts are to be installed with the head on the fan
housing exterior.
7. Caulk along the bolt hole line where the adaptor flange will mount to the roof sheet.
8. Bolt the adaptor section to the roof sheet along with the support angles (MIS-6703) (template) under
the roof sheet, (See Figure 5I) . Tighten the adaptor to the roof sheet with template bolts.
Figure 5H The Cutline for Roof Sheet Adaptor Figure 5I The 24" roof fan adaptor on roof sheet with
template bolting underneath.
9. Form a lip up around the inside of the adaptor opening by peening up the edge of the roof sheet
extending past the inner edge of the roof adaptor.
10. Loosely bolt the rainhood top plate, rainhood right side and rainhood left side together.
11. Bolt the fan housing to the adaptor. (See Figure 5J on Page 17.)