Barco DP90 - Manuals

2. Servicing the liquid cooling circuit 2.1 Preparation for cooling liquid replacement What has to be done 1. Switch off the projector. 2. Remove the lamp unit to access the cooling liquid in- and outlet. 3. If excluding the light processor is required while handling the cooling circuit procedures, ...

2. Servicing the liquid cooling circuit OUT Image 2-3Drain complete circuit 2. Close the valve. 3. Fill the syringe with air. Press in the valve of the male fitting when extracting air. Image 2-4 4. Couple the air filled syringe to the inlet of the cooling circuit and force air into the circuit via ...

2. Servicing the liquid cooling circuit 2.3 Filling the liquid cooling circuit This procedure can only be used to fill an empty (drained) cooling circuit. Necessary tools • 60 cm of plastic tube with male valved fitting. • 60 cm of plastic tube with female valved fitting. • Syringe connected with sh...

2. Servicing the liquid cooling circuit 2.4 Refreshing the liquid cooling circuit Over time the cooling liquid may show deterioration and hence less effective cooling characteristics. To main-tain sound cooling properties, we advise ANNUAL replacement of the cooling liquid. Necessary tools • 2 x 60 ...

2. Servicing the liquid cooling circuit OUT IN Image 2-10Refresh cooling circuit 5. Switch on the projector. After projector boot-up procedure, the internal pump will automatically start sucking-up the fresh liquid Note: Make sure that the end of the plastic tube remains immersed in the bottle with ...

2. Servicing the liquid cooling circuit 7. Uncouple the two plastic tubes. Note: Make sure that both ends of the plastic tubes in the bottle remains immersed until the plastic tubes are uncouple fromthe liquid cooling circuit. Tip: Sometimes a little cooling liquid will be spilled. Wrap a small clot...

2. Servicing the liquid cooling circuit a b c d e f M F Image 2-13 2. Couple the syringe to the inlet of the cooling circuit and press the cooling liquid inside the circuit until the manometer indicates 1 bar pressure. Ensure that no air bubbles are injected into the circuit. Caution: Maximum 1 bar ...

2. Servicing the liquid cooling circuit Check within 24 hours whether the pressure has stabilized close to 1 bar. If not, search for leakage. 2.7 Calibrating the liquid cooling circuit To check if the pressure vessel is correctly calibrated you may connect the syringe with the cooling circuitand mea...