Ventilation; Air Filter; Liquid Cooler; Maintenance And Cleaning - Christie Roadie HD+35K User Manual

4.2.1 Ventilation

Vents and louvers in the projector covers provide ventilation, both for intake and exhaust. Never block or cover
these openings. Do not install the projector near a radiator or heat register, or within an enclosure.

4.2.2 Air Filter

It is recommended that you replace the air filter (located on the lamp side of the projection head) whenever you
replace the lamp, or sooner, in dusty or dirty environments. A clogged filter reduces airflow, and can lead to
overheating and failure of the projector. Check monthly. Refer to
for instructions.

4.2.3 Liquid Cooler

The liquid cooler system circulates liquid to and from the DMDs in the projection head, reducing their
operating temperature to an acceptable level. Periodically check the coolant level visible by opening the Igniter
compartment door. The reservoir is approximately ½ full.
NOTE:
A failure of the liquid cooling system will trigger an over-temperature alarm condition, clearly indicated
with status displays/lights at the rear of the projector.
Filling the Cooler
Fill approximately 1/2 full. Fill with Christie's 50/50 mix of distilled water and ethylene glycol. Top up as
necessary, making sure not to over fill.
IMPORTANT!
4.3

Maintenance and Cleaning

To help ensure optimized performance and reliability, check electrical, optical and other components regularly
as described below.

4.3.1 Electrical

Do the following every 60 days or 500 hours of projector use (always disconnecting both the projection head
and ballast from AC first):
• Check the contact surfaces of positive (anode) and cathode (negative) connections for cleanliness. Clean
electrical contact surfaces as necessary to prevent contact resistance from scorching connectors.
• Verify that all electrical and lamp connections are tight.

4.3.2 Optical

Unnecessary cleaning of optics can be more harmful than helpful, increasing the risk of degrading delicate
coatings and surfaces. In this projector, check only the lens and lamp reflector. Maintenance of other optical
components requires a Christie accredited service technician . Check these components periodically in a clean,
dust-free environment using a high-intensity light source or flashlight. Clean them only when dust, dirt, oil or
other marks are obvious. Never touch an optical surface with your bare hand-always wear latex lab gloves.
Roadie HD+35K User Manual
020-100340-02 Rev. 1 (01-2010)
Whenever coolant has been added or replaced, check for a possible airlock at the next
projector power-up.
Shock Hazard. Disconnect projection head and ballast from AC at BOTH wall breakers.
Section 4: Maintenance
Section 4.4.2 Filter Replacement Procedure
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