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Author Topic: Christie CP2220 red/green blemishes Carsten Kurz Film God Posts: 4340 From: Cologne, NRW, Germany Registered: Aug 2009 posted 12-15-2016 06:16 AM                     The idea itself is not so bad, as long as you don't have greasy air. It won't keep as clean as it would be after a real cleaning, but it helps to avoid dust buildup over a longer time. If you have greasy air, it's worse. The Sony 51x use the same approach, but they really should have designed better filters for these entries. It seems Sony designed these to be used within the rooms these projector were actually built in... - Carsten  |  IP: Logged Marco Giustini Film God Posts: 2713 From: Reading, UK Registered: Nov 2007 posted 12-15-2016 09:15 AM                     Carsten There is now a retrofit kit for the 51x series which basically brings R320's filters to the 51x series. It seems very interesting to me. That said, I like the sealed engine but if that is not possible, then I like Sony's approach where you can clean everything in 45 minutes.  |  IP: Logged Sascha F. Roll Expert Film Handler Posts: 140 From: Berlin, Berlin / Germany Registered: Sep 2015 posted 12-15-2016 09:28 AM                     Marco, it's not only very interesting but also VERY expensive (AFAIR 1500 € net) for what it is... Could not convince one customer so far.  |  IP: Logged Mark Gulbrandsen Resident Trollmaster Posts: 16657 From: Music City Registered: Jun 99 posted 12-15-2016 07:10 PM                     quote: Carsten Kurz The idea itself is not so bad, as long as you don't have greasy air. And where in the world is the air not so nasty any more? Some of the places I service which supposedly have such clean air like Jackson, Hole, Wyoming and Ketchum, Idaho actually have the dirtiest air filters out of all the sites I go to. Even Mike Blakesley's theater which has coal trains running back and forth in front of it all day doesn't get as dirty. Mark  |  IP: Logged Marco Giustini Film God Posts: 2713 From: Reading, UK Registered: Nov 2007 posted 12-16-2016 05:54 AM                     Based on my experience I feel that the best solution it's to exhaust the air in the room itself and install air conditioners - more than just one unit if course. That way the air is being reused and dust never gets in. If you cannot afford a proper filtration, that IMHO is the best solution. Just make sure you have two independent AC units.  |  IP: Logged Steve Guttag We forgot the crackers Gromit!!! Posts: 12814 From: Annapolis, MD Registered: Dec 1999 posted 12-16-2016 07:52 AM                     quote: Mark Gulbrandsen And where in the world is the air not so nasty any more? I've found it! We service a museum in Virginia that due to the artifacts, they have VERY clean air. In their 3D theatre, I pulled out filters with over 3000 hours on them since I was last there, they looked pretty much new. In fact, no dust anywhere in site in or on top of anything. Clearly, not a commercial cinema!  |  IP: Logged Marco Giustini Film God Posts: 2713 From: Reading, UK Registered: Nov 2007 posted 12-16-2016 09:48 AM                     cool! I am not an HVAC engineer but it shouldn't be a huge investment to install a fan that brings air in and put a pollen filter on its way. It was critical with 35mm, with Digital your projector will thank you in the long term.  |  IP: Logged Mark Gulbrandsen Resident Trollmaster Posts: 16657 From: Music City Registered: Jun 99 posted 12-16-2016 02:31 PM                     Steve, I wish all theaters had air systems like that one! Filter companies wold go out of business... Processing/preservation labs almost always have well filtered air sources too... Mark  |  IP: Logged George Germisashvili Film Handler Posts: 16 From: Republic of Georgia Registered: Oct 2011 posted 12-17-2016 10:47 PM                     And what regarding the level of cooling liquid in tank of cp2220 ? Did you add cooling liquid anytime ?  |  IP: Logged Marco Giustini Film God Posts: 2713 From: Reading, UK Registered: Nov 2007 posted 12-18-2016 01:40 AM                     If needed, but there should be no need. If level is low you probably have a leak. After a few years a little top up is OK  |  IP: Logged Mark Gulbrandsen Resident Trollmaster Posts: 16657 From: Music City Registered: Jun 99 posted 01-27-2017 12:52 PM                     That's not what they told us at training way back in 2005! They claimed that the LAD does help cool the DMD's a bit. And how could it not unless your booth air going in is really hot. Mark  |  IP: Logged

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