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16-
24” Joist Spacing
1.
If the joist spacing is 16 to 24 inches bend down the 8 positioning tabs as shown in Figure 2a. Then unfold the
suspension bracket as shown in figure 2b.
2.
Secure one side of the suspension bracket assembly to one joist by drilling in the two (2) ST4x20 screws attached to
the assembly as shown in Figure 3. Then adjust the length of the suspension bracket assembly to fit the spacing
between joists and drill in the other two (2) tapping screws attached to the assembly.
3.
Remove the tape from the damper and place the duct adaptor on the bracket assembly as shown in Figure 4. Install
it by using two (2) ST4x30 screws as shown.
