This is topic NEC NC2000C fans and filters in forum Digital Cinema Forum at Film-Tech Forum ARCHIVE.


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Posted by Gunnar Asgeirsson (Member # 3882) on 12-26-2015, 07:59 PM:
 
Hello guys,
Now it was popping up for the first time in our NEC NC2000C projector that it need to be replaced the Power On and AC On fans since they have now reach the 20.000 hour limit.

It shows now there warnings
220 : AC On Fan Exchange Time
221 : Power On Fan Exchange Time

And i went on google and found out on a more than one place that this fans can easily reach the 100.000 hours without any problem and i have seen suggestions that the time should just be reset without replacing theme.
Before i trust google i thought it might be good idea to ask here if you guys has any experience on this fan times.

And another thing about the air filters, i usually replace them each time i replace the lamp (every 1500 hours)
But the local store in my country that sells this parts from nec sell it on very expensive price (more expensive than buying the actual lamp bulb from osram)
Are these air filters really more expensive than the lamp bulb itself?
Could you guys tell me here where you buy your airfilters and what the price are
We ofcaurse use the orginal filter from nec, have sombody here been using any imitations?
 

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Posted by Justin Hamaker (Member # 2165) on 12-26-2015, 10:22 PM:
 
If you go into the DCC, you can reset the hours on these fans at the bottom of the Lamp>Setup tab. My understanding is the rated life is 3-4 times longer than the programmed life in the projector.

What kind of filter are you using for these? There is a paper filter available which is much less expensive than the filters which come stock in the projector. NEC NC2000C Filters
 

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Posted by Steve Guttag (Member # 268) on 12-27-2015, 07:03 AM:
 
The MTF on the AC ON fan is 80,000 hours. However, at that time, you do have a significant number of failures, as per the manufacturer. My thinking is that NEC is being very conservative in their efforts to have one change the parts prior to failure since failure means show cancellation. I'd think 40,000-60,000 is a more realistic recommended replacement time until proven otherwise. I'd definitely have a spare or spares on site by the time you reach 20,000 hours though.

As for the filters, NEC's filters are a bit pricey though they are better than the aftermarket alternatives I've seen. In the USA, both Strong and MIT have low-cost alternatives that have also evolved. NEC's filters have a metallic webbing on the outside of their filters to electrostatically filter as well...I have not seen that on the aftermarkets. I've also seen various fitting issues (too loose/too tight) on the aftermarkets.
 

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Posted by Gunnar Asgeirsson (Member # 3882) on 12-27-2015, 11:22 AM:
 
Justin Hamaker:
We have always been using the orginal filters from nec. But they are really expensive so i was wondering if we can get away with using some aftermarket if that does the same.

This is what we are using now (the two product there with the nec logo)
http://www.theatricalbulbsupply.com/categories/projector-parts-accessories/projector-filters/filters-for-nec-projectors.html
 

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Posted by Leo Enticknap (Member # 534) on 12-27-2015, 12:35 PM:
 

quote: Steve Guttag

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My thinking is that NEC is being very conservative in their efforts to have one change the parts prior to failure since failure means show cancellation. I'd think 40,000-60,000 is a more realistic recommended replacement time until proven otherwise.

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