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2.7.3 Liquid Cooling (Radiator) Air Filter
Check: Monthly
Located on the left/front side of the projector the air filter for the liquid cooling system, should be inspected
routinely and replaced if it appears greyish in color. Refer to
instructions.
2.7.4 Liquid Cooling System
Check: Every 6 months
The liquid cooling system circulates liquid to and from the DMD heatsinks in the D4K35 reducing the DMD
operating temperature to an acceptable level. Check the coolant level every six months, by removing the top
projector lid. Make sure the level of coolant remains above the minimum level indicator. If the liquid cooling
system should fail, an over-temperature alarm window will display. If an over-temperature state remains for
more than one minute, the lamp will turn OFF.
2.7.5 Filling the Coolant Reservoir
glycol. Use caution when handling. DO NOT ingest. Wash hands after servicing the coolant
reservoir.
projector. Using unapproved coolant can result in projector damage and will also void
projector warranty.
Top up the coolant with the Christie approved coolant JEFFCOOL E105. Use the refill bottle (with the nozzle)
provided in the Liquid Coolant Fill Service Kit (P/N: 003-001837-xx). When refilling, use caution not to spill
or drip on or near the electronics. Do not allow the level of coolant to fall below the Minimum Fill Line.
NOTE: After filling the reservoir, check the coolant hoses for kinks which may restrict fluid flow. DO NOT
OVERFILL.
In the event coolant drips on any electronics or other nearby components, blot the
affected area using a dust-free optical grade tissue. It is recommended you blot a few times,
discard the tissue and use a new tissue to blot the area again. Keep repeating this cycle until
the coolant is cleaned up. Then lightly moisten a new tissue with de-ionized water and blot
the area again. Use a dry tissue to dry the area off. Repeatedly using clean tissue and blotting
the area should successfully remove coolant spills.
D4K35 Service Manual
020-100817-01 Rev. 1 (04-2012)
HAZARDOUS SUBSTANCE! The coolant used in this product contains ethylene
DO NOT use coolants other than that specified by Christie with your
Section 2: Service Guidelines
5.5.2 Radiator Air Filter, on page 5-11
for
2-5
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