The projector can be installed facing any direction, as shown below. However, projection upward or downward may shorten the useful life of the lamp.
We won’t recommend you to install the projector for upward or downward projection by yourself. It’s better to request installation by a qualified
technician.

Install Facing in the Correct Direction

  1. The upward and downard projection’s inclination of the projector should be no more than 10° from the vertical axis.
  2. If installing the projector on the floor or hanging from the ceiling, the left/right inclination of the projector should be no more than 10°.

Read more:

How to Use Lens Ring on Cannon LX-MU500Z Projector
Cannon LX-MU500Z Projector Remote Control Not Working Solution
Common Projection Audio Input Interfaces