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2. Servicing the liquid cooling circuit
2. SERVICING THE LIQUID COOLING CIRCUIT
WARNING: All procedures in this chapter may only be performed by “qualified service technicians” .
Definition of “qualified service technicians” or ”qualified technicians”: Persons having appropriate technical
training and experience necessary to be aware of hazards to which they are exposed in performing a task and
of measures to minimize the danger to themselves or other persons.
All procedures in this chapter require the removal of the side cover of the projector. See user manual of the
projector for instructions on how to remove and install the side cover.
WARNING: All actions performed on the liquid cooling circuit should occur in ambient conditions (25°). The
projector should have sufficiently cooled down (minimum 2 hours).
WARNING: Do not change the air pressure of a calibrated liquid cooling circuit (see marking on pressure
vessel), unless stated explicitly in the servicing procedure.
Tools used in the liquid cooling servicing procedures
1L
ABCD E F G
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Image 2-1
A Syringe with plastic tube (60 cm) and male valved fitting.
B 60 cm plastic tube with male valved fitting.
C 60 cm plastic tube with female valved fitting.
D Female/female valved fitting adaptor.
E Bottle with 1 liter cooling liquid.
F Empty bottle with a volume of 1 liter.
G Air pump with Shrader type air hose f itting.
CAUTION: To avoid damage to the connector seal, always depress the connector tab of the female valved
fitting prior to inserting the male
valved fitting.
R59770032 COOLING LIQUID REFURBISHMENT 07/12/2006 7