Manual

Ibis 3 Owners Guide Revision V6 Page 10 of 19
Attach plenum assembly cont.
 Raise the plenum assembly towards the roof top
installation.
 Engage a M4 x 25 metal thread into one of the 4
holes in the corner of the filter recess.
 Raise the plenum and engage the screw into its
mating hole on the diagonal arm of the brace.
Figure 12
 Repeat for 3 other threads.
 Tighten screws until the plenum has been pulled
up to the ceiling.
Figure 12 - Connect plenum cover to brace arms with 4
M4 x 20 metal threads
In some installations the ceiling may be uneven
and one or more sides of the plenum will require
additional fixtures. Figure 13
IF REQUIRED …..
 Screw in #8 x ½” countersunk wood screws
provided.
 Tighten until gap is gone.
 Install cover caps.
Figure 13 - Extra screws to close gap around plenum
8. Install return air filter
 Locate the return air filter. (Item #5).
 Align the tabs on one side of the filter body
with matching slots in the plenum. Insert the
filter into the recess in the plenum. Figure 14
 Push the filter upwards until both catches
engage and hold the filter in place. Figure 15
Figure 14 - Insert filter tabs into slots
Figure 15 - Push upwards
1. To remove the filter Figure 16:
1. Push both tabs inwards
2. Swing down
Figure 16 - Remove filter from plenum
INSTALLATION IS NOW
COMPLETE – PROCEED TO
COMMISSIONING
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