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  1. #1
    Join Date
    Jun 2004
    Posts
    29
    My filters have have an arrow on the side. Should those arrows point up or down when installing them in the Air Handler?

  2. #2
    Join Date
    Sep 2005
    Location
    NJ
    Posts
    416
    Arrows should point towards the unit

  3. #3
    Join Date
    Nov 2005
    Location
    Southeast Missouri
    Posts
    7
    Arrows should point to direction of air flow. If blower is blowing down (downflow), then arrows should point down. If blower is blowing up (upflow), then arrows should point up. If not certain, check your furnace or air handler and try to determine if the flow to your registers in your home comes from duct connected to the bottom or top of your unit. This would be the direction the arrows should point. Hope this helps--my first input on this site.

  4. #4
    Join Date
    Jun 2004
    Posts
    29
    So if the unit sucks the filter upwards when it cuts on; then the arrow should point up.

    If it was installed upside down would it cause the unit outside to ice up?

    [Edited by jaxbeach on 06-16-2006 at 11:15 PM]

  5. #5
    Join Date
    Mar 2005
    Location
    burlington county n.j.
    Posts
    9,748
    yes no

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