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Topic: NEC NC2000C fans and filters
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Steve Guttag
We forgot the crackers Gromit!!!
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Posts: 12814
From: Annapolis, MD
Registered: Dec 1999
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posted 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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