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a/c

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The install manuals I've seen for an air handler with the blower after the coil show BOTH drain connections (each side of coil) used via condensate traps leading to an air gap into the main drain. Unless going into a floor drain, a 3" bell coupling to your main drain size (1 1/2" minimimum and trapped of course) works wonderfully.

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  • william_5
    william_5 Member Posts: 62
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    a/c

    Running my a/c i found water dropletts on the out side of the airhandler. opening it up i also found condenstation dripping from the fan houseing. The drip tube is not blocked and the pan does not have a leak ????
    thanks William
  • Unknown
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    well,,,

    One thing you can say is the temp of the metal is lower than the dewpoint of the air it is in contact with. The question is why? Does the a/h pull the air through the coil or push it through. I'm guessing pull.
  • william_5
    william_5 Member Posts: 62
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    yes it pulls air
  • Empire_2
    Empire_2 Member Posts: 2,343
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    Air temp?

    Do you know what the supply and return air temps are? Also, some equipment used to have a plate to not only deflect the air pattern a little, but also acted as a drip catcher if you will so it would go back into the pan. There are a lot of things that can make you scratch your head, but there has to be a reason. There should be a condensate trap on that puppy. When you open the door to look, the pan would drain and you would not see the excess water in the pan... Just a thought.

    Mike T.
  • Unknown
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    Maybe,,,

    just maybe, you need freon. Sounds like the coils is not getting cold enough to remove moisture from the air passing through it. Actually several things could cause this. I'd say unless you're an A/C tech yourself you probably want to get one to check the whole system out.
  • Mike T., Swampeast MO
    Mike T., Swampeast MO Member Posts: 6,928
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    First thing I'd do is install/make a condensate trap right after the air handler. You can use plain PVC 90s to make the trap. I like to use 1" PVC and the approx. 2" trap depth you get with a street 90 into a regular 90 is all you need.

    Prime the trap, and the problem may well disappear. Without the trap, air handlers with the fan after the coil can literally suck the condensate out of the drain line and a trap is the only sure way I know to stop it.
  • Techman
    Techman Member Posts: 2,144
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    CONDENSATION

    A couple of simple things to check for ,a very dirty air filter,a very dirty evapcoil,or dirty evap fan wheel,or evap motor running on too low of a speed,or as suggested an inproper drain trap.the trap should 90* down 4" then back up 2" and then possibly have a T open to the air and then drain to where it goes away. LET US KNOW WHAT YOU FIND!!
  • Mike
    Mike Member Posts: 94
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    A/C condensation

    Check your air flow. May be to much, pulling the water droplets off the coil. Also, if you have a multi-position coil, see if have or need a coil baffle. Alot of times there not installed. Who reads the installation manuals?
  • rucomfy
    rucomfy Member Posts: 43
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    Where ....

    > Running my a/c i found water dropletts on the out

    > side of the airhandler. opening it up i also

    > found condenstation dripping from the fan

    > houseing. The drip tube is not blocked and the

    > pan does not have a leak ???? thanks William



  • rucomfy
    rucomfy Member Posts: 43
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    Where ....

    is this air handler located.. conditioned or unconditioned space?? Thanks.
  • william_5
    william_5 Member Posts: 62
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    Thanks all. As all ways like heating units there is a lot of things two check out. A/C is not new to me. The co. I worked for did heating and very little a/c. I will let you know what i find i know for a fact there is no trap. Air temps i doint have yet. Filters clean house temp set at 78-79 unit cycles on and off unit is a traine sr 13 air handler in garage, temp in garage is about 93 cleaned out side unit only found 2 snakes
    * info front cover of air handler does not fit tight. when the fan goes on could it be sucking warm moist air in mixing with the coller air and then condencing???
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