You can set up or install your projector in the
following ways:
Front

Rear

Front ceiling

Rear ceiling

Note: Be sure
to leave at least 20 inches (50 cm) of space in front of the air
exhaust and intake vents and, when setting up multiple projectors,
20 inches (50 cm) of space between the projectors.
You can mount the projector to the ceiling at any
horizontal or vertical angle.
If you project from the ceiling or from the rear,
select the correct Projection
setting and, if necessary, turn on the Inv Direction Button setting and adjust the
OSD Rotation setting.