Lennox system
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Thread: Lennox system

  1. #1
    Join Date
    Dec 2007
    Location
    Cedar Grove, Wi-Sheboygan
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    1,582

    Lennox system

    I just returned from my anunts home down in OK, last week and the last time I was there I found several code violation and basically saved my Anunt & uncles lives, this time around I was there and the filter needed to be replaces as I noticed the airhandler running more than normal and working harder than it needed to so I checked the filter and sure enough it was way past due, what a difference that made. Now after changing the filter I also noticed the airhandler is quite loud even in low fire and low fan speed operation, the airhandler sit up on a box in a closet and the box (return air) is about 3' sq and 3' high which is directly opposite the intake grille on the other side of the wall and all supply air is ducted in the ceiling but the unit is just way nosiy IMO. Would the use of turning vanes help there situation or would they need to have some work done in the return box which the bottom of the airhandler sits directly on the top of this box ? Suggestions ? The stat is one of those lennox type, and I believe there system is one of the top of the line airhandlers/HP's.

  2. #2
    Join Date
    Sep 2002
    Location
    Northeast Ohio
    Posts
    4,841
    Turning veins might actually exaserbate the problem
    A good HVAC tech knows how, an educated HVAC tech knows why!

    DEM


  3. #3
    Join Date
    Dec 2007
    Location
    Cedar Grove, Wi-Sheboygan
    Posts
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    I never checked to see just what size system they have but am guessing it's probably a 4 ton system, would it be possibly the blower setting on the airhandler is set too high for the size duct work and tonnage they have ?

  4. #4
    Join Date
    Mar 2005
    Location
    burlington county n.j.
    Posts
    9,675
    could be blower speed to high, could be return grills to small, could be return box to crappy, could just be return grill so close to blower.

    maybe turning vanes will help, maybe they won't. maybe insulating the return box would help, maybe it wouldn't...................


    you have been around long enough to know internet diagnoses suck.......

  5. #5
    Join Date
    Jan 2004
    Location
    Lancaster PA
    Posts
    67,584
    Quiet Vanes might help.
    Contractor locator map

    How-to-apply-for-Professional

    How many times must one fix something before it is fixed?

  6. #6
    Join Date
    Sep 2006
    Posts
    10
    run away

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