Recalibrating The Filter System; Figure 5-2 Replacing The Hepa Filter - High End Systems DL.1 User Manual

8. A dirty prefitler can cause an early Service Filter warning. If the prefilter looks
dirty, clean it with water. Thoroughly dry the prefilter before proceeding.
9. If the HEPA filter is discolored with partculates, replace it only with the part listed
in "Optional Accessories" on page 1-2.
Reassemble the fixture:
10. Reinstall the HEPA Filter with the
rubber gasket down as shown in
Figure 5-2.
11. Reattach the filter bracket with the two
philips pan screws.
12. Replace the prefilter over the bracket
on velcro tabs.
13. Replace the top cover, fastening it with
the two quarter-turn screws.
14. Carefully replace the rear bezel,
making sure to place (but do not force)
the gasket (shown in Figure 5-6 on
page 5-8) against the lamp cover located on the projector back of the projector.
15. Relatch the rear bezel assembly (see Figure 5-1).

Recalibrating the Filter System:

Before recalibrating, ensure that:
• The fixture is attached to a DMX controller
• The fixture is cooled to room temperature
To calibrate the fixture after installing a new air filter or new CPU board:
1. After the fixture is cooled, apply power and then, while the fixture is homing
perform the following menu configuration procedure.
2. Press the Menu button to unlock the menu system or to move back up the system
to the top level menus.
3. Using the left and right arrows on the Navigation button, scroll through the top
level to SET PARAMETERS MENU and press the Enter button to select.
4. Using the left and right arrows on the Navigation button, scroll to NEW AIR FILTER.
5. Use the up and down arrows on the Navigation button to scroll to YES and press
the Enter button to select.
6. After a 20 second pause, you will hear the fans ramp up to high speed as the
recalibration sequence begins and then ramp down.
Note: If you turn off the power before you hear the fans engage, the filters will not
be calibrated.
DL.1 User Manual

Figure 5-2 Replacing the HEPA filter

General Maintenance and Troubleshooting
Place HEPA filter
with gasket
against plenum
5
5-3