Inspect Ventilation; Fill The Coolant Reservoir; Inspect The Lamp - Christie CP4220 Setup Manual

6 Maintenance
This section provides information and procedures for performing projector maintenance. You should read
through this section in its entirety before performing maintenance activities. When you perform projector
maintenance, obey all warnings and precautions.
6.1

Inspect 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, heat register, or within an enclosure. To ensure
adequate airflow around the projector, keep a minimum clearance of 50cm (19.69") on the left, right, and rear
sides of the projector.
6.2

Fill the Coolant Reservoir

DANGER
glycol. Use caution when handling. DO NOT ingest.
WARNING
unapproved coolant can result in projector damage and voids the projector warranty.
The liquid cooler system sends and receives coolant from the digital micromirror device (DMD) heat sinks.
Check the coolant level every 6 months, by removing the top projector lid. The coolant level should always be
above the minimum level indicator. If the liquid cooling system fails, an over-temperature alarm window
appears in the Touch Pad Controller (TPC). The lamp turns off if the projector enters an over-temperature state
for longer than one minute.
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 let any of the coolant drip on or near the electronics. After filling the reservoir, check the coolant hoses for
kinks which may restrict fluid flow.
If coolant drips on electronics or other 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 removed. Then lightly moisten a new tissue with de-ionized water and
blot the area again. Use a dry tissue to dry the area.
6.3

Inspect the Lamp

DANGER
protective safety gear.
• Check the contact surfaces of the anode (positive) and the cathode (negative) connections for cleanliness.
• Clean electrical contact surfaces regularly to prevent contact resistance from scorching connectors. Use an
approved contact cleaner.
• Verify that all electrical and lamp connections are secure.
CP4220 Setup Guide
020-100692-02 Rev. 2 (05-2014)
HAZARDOUS SUBSTANCE! The coolant used in the projector contains ethylene
Only use coolant recommended by Christie in your projector. Using
Always disconnect the projector from AC power and wear authorized
6-1