Proxima ASA 4100/4200 - Manual (Page 15)

2-4 Chapter Two
Projector Cooling and Airflow
Locate the air intake grills on the front and rear of the projector, and the air
exhaust grill on the top cover.
CAUTION! Never operate the projector if these grills are clogged or
obstructed, or if the electric fans are not running.
PROXIMA
Figure 2-5 Allow for proper air flow