Hired-Hand External Damper Fans - Manual (Page 7)

Part No. 4801-5402 Rev. 2/09 Mega-Flow External Damper Fans & Cone Page 7 of 13
Arrange panels for assembly
with pilot hole on each panel
facing upward.
Slot for mounting top of
cone to fan housing Joints
Install #14 x 1/2" sm
screw
Install #14 x 1/2" sm
screw
Pilot hole
at top
outside of
cone
Pilot hole faces upward
Pull
flanges
together to
align
mounting
holes
Mounting
Hole for
Wire Guard
9. Arrange panels contacting as shown in Figure 4. NOTE: The pilot hole pointing upward. Refer to Figure 4
Inset B.
10. For each panel, slide panels together. See Figure 4 Inset A.
11. Align holes of flanges. See Figure 4 Inset A. Install sheet metal screws as shown in Insets B and C.
12.
To complete the last flange connection, roll the
cone panels so the small end is on the floor. See
Figure 5. IMPORTANT! The four pilot holes
should be at the top end on the outside of the
cone.
Figure 4: Assembly & Installation of Cone
Mounting Holes for
Damper Ring
Figure 4: Inset A
Figure 4: Inset C
Figure 4:
Inset B
Figure 5: Assembled Cone