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  1. #27
    Join Date
    Jul 2004
    Location
    Massachusetts
    Posts
    6,837
    I haven't found ANY media filter that can catch small particles that is anything but a big flat board across the return. Static pressure's right off the chart and I don't care what their claim is. The machine tells the tale. If you want clean air without high static (assuming the ducts are properly sized) then spring for a good electronic air cleaner. The false savings with the media filters is revealed in the electrical consumption. A VS motor will hog a huge wattage when things are restricted. Much more than a standard motor that just loads down and draws less. If you want the true savings of a VS motor, it is mandatory that the ESP is low. Period.
    If YOU want change, YOU have to first change.

    If you are waiting for the 'other guy' to change first, just remember, you're the 'other guy's' other guy. To continue to expect real change when you keep acting the same way as always, is folly. Won't happen. Real change will only happen when a majority of the people change the way they vote!

  2. #28
    Join Date
    Jul 2008
    Posts
    551
    Quote Originally Posted by skippedover View Post
    I haven't found ANY media filter that can catch small particles that is anything but a big flat board across the return. Static pressure's right off the chart and I don't care what their claim is. The machine tells the tale. If you want clean air without high static (assuming the ducts are properly sized) then spring for a good electronic air cleaner. The false savings with the media filters is revealed in the electrical consumption. A VS motor will hog a huge wattage when things are restricted. Much more than a standard motor that just loads down and draws less. If you want the true savings of a VS motor, it is mandatory that the ESP is low. Period.
    I think you misinterpreted some details. I don't need clean air. I just need air w/out pollen. Simple Merv4+ filters are enough to calm my allergies. These types of filters don't have huge pressure drops unless they are really poorly made.

  3. #29
    Join Date
    Jan 2009
    Location
    Keokuk, IA
    Posts
    5,520
    I have trouble believing a 5" MERV 9 or 11 media filter with its deep pleats has a huge level of restriction. I don't think it's neesesary to have the electronic wizzardy to charge the dust particles to help them cling to the filter to achieve MERV 13. But I don't see a significant difference and most EAC's are not cheap... often a 10-20% price bump to some full systems. The moeny would eb better spent optimizing air duct design or aggressive measures to seal more leaks. But that's just my opinion.

  4. #30
    Join Date
    Apr 2008
    Location
    Princeton, NJ
    Posts
    581
    Quote Originally Posted by badtlc View Post
    I forgot to ask and I cannot find the literature on the web. Does your XV95 have a 1/2HP, 3/4HP or 1HP ECM motor? Mine is a 3/4HP and I'm afraid yours is not which ruins any solid comparison.
    Mine is 3/4 HP also.

    Key1
    In the land of the blind.....the man with one eye is king....

  5. #31
    Join Date
    Aug 2002
    Location
    Office and warehouse in both Crystal River & New Port Richey ,FL
    Posts
    18,836
    Lots of opinions on filter and pressure drops here.



    Most would be enlightened by reading the tutorial that was posted.

  6. #32
    Join Date
    Jul 2008
    Posts
    551
    OK, so i'm currently getting a huge pressure drop across my 16x25x1 filters. They aren't bad new, but the restriction doubles within 14 days. My contractor wants me to try one of these:
    http://www.amana-hac.com/Portals/1/pdf/SS-A1EAC.pdf

    I'm more interested in one of these:
    http://www.amana-hac.com/Portals/1/pdf/SS-ARAM.pdf

    I don't need anything more than MERV 6 (to filter pollen). My main concern is dropping PD as much as possible. Anyone have in experience with both of these?

  7. #33
    Join Date
    Sep 2006
    Location
    Leavenworth KS
    Posts
    309
    We use your choice as our standard filter.
    Mike

  8. #34
    Join Date
    Jul 2008
    Posts
    551
    Quote Originally Posted by mgould2 View Post
    We use your choice as our standard filter.
    Have you measured total ESP or the PD across the filter with one of those?\

    Thanks.

  9. #35
    Join Date
    Sep 2006
    Location
    Leavenworth KS
    Posts
    309
    Yes we do on most every install. The PD is quit low a compared smaller 1 and 2 inch thick filters. We use two on five ton units. I have personally seen .03 on a 2 ton 40,000 unit. Try that with a 14x20x1 pleated filter.
    Mike

  10. #36
    Join Date
    Jul 2008
    Posts
    551
    Quote Originally Posted by mgould2 View Post
    Yes we do on most every install. The PD is quit low a compared smaller 1 and 2 inch thick filters. We use two on five ton units. I have personally seen .03 on a 2 ton 40,000 unit. Try that with a 14x20x1 pleated filter.
    I believe you. I finally found specs for the Carrier version of this product and the Trion Air Bear. Both list the PD for these filter units at .1" or lower at 1200 CFMs!! That is a tremendous drop from any 16x25x1 filter I can put in that will filter simple dust and pollen.

    Thanks for your help.

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