Vutec PROJECTOR SCISSOR LIFT - Installation Instructions - Manual (Page 4)

Steps for a Standard Installation:
1 - Determine Projector Location
Location of the ceiling opening will depend on the projector being used.
Projectors equipped with a zoom lens can focus the intended image size through a
range of distances of several feet in variation. For this reason the exact distance,
projector to screen surface, need only be held within the particular focus range specified
by the projector manufacturer for the intended screen size.
For projectors with a fixed focal length lens, the exact distance, projector lens to screen
surface, becomes much more critical. The projector will have a fairly short range of fine
focus adjustment, and the final installation must end up with the projector located within
this range. It is important to know what this range is, so that you will have a feel for what
the critical projector location actually is.
Once the exact location of the ceiling opening is established, ensure that there is
sufficient headroom above the opening to receive the projector lift. See (Fig. 9) for
measurements.
Inspect the existing structure above this spot to see if any modifications are required for
adequate support of the complete system. If a support framework needs to be built,
observe the physical arrangement of the projector lift, and be sure to leave satisfactory
access for inspection, maintenance and electrical hookup.
2- Installing the Projector lift.
Mount the projector lift with ¼” threaded rods or wood screws (not provided) depending
on the specific installation to the structure. Make sure the lift is mounted level and free
from rotating and moving parts. It is recommended that the supporting structure be able
to carry at least four times the total weight of the unit, including projector weight. (See
Fig. 1).
It is important to remember that this will be a continuous dead weight for the life of the
installation. The solidness, or rigidity, of the support structure needs to be sufficient to
support this load without a slow movement, or relaxation, over time.