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  1. #1
    Michael Vasquez's Avatar
    Michael Vasquez Guest

    Default Indoor and outdoor coils different manufacturer's

    I am looking for some information on if the outdoor condenser and the indoor air handler should be the same manufacturer on a new construction home?

    Also, I have come across some units installed in new construction without a filter/dryer on the liquid line. Is this acceptable?

    Thank You

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  2. #2
    Join Date
    Mar 2007
    Location
    Plano, Texas
    Posts
    4,170

    Default Re: Indoor and outdoor coils different manufacturer's

    The indoor coil needs to be matched, the AHU brand does not matter except for the appropriate CFM and physical size.
    IF you have a factory charged line set, the lack of a dryer may not be significant, but if you see field assembled joints a dryer is required.

    Last edited by Jim Luttrall; 03-20-2009 at 07:06 PM.
    Jim Luttrall
    www.MrInspector.net
    Plano, Texas

  3. #3
    Michael Vasquez's Avatar
    Michael Vasquez Guest

    Default Re: Indoor and outdoor coils different manufacturer's

    Thanks Jim, that helps.


  4. #4
    Richard Stanley's Avatar
    Richard Stanley Guest

    Default Re: Indoor and outdoor coils different manufacturer's

    More often than not, you will find the AHU 1 size larger than the condenser unit and usually this is acceptable. For specifics, consult the manufacturer. ie; up to 3.5 ton - AHUs may be .5 ton larger. 4 ton - 5 ton ahu ok.


  5. #5
    Join Date
    Dec 2008
    Location
    Colorado
    Posts
    17

    Default Re: Indoor and outdoor coils different manufacturer's

    When units are installed after the original furnace instalation it is not uncommon to find a different evaporator manufature then the condensing unit, most often the installer tryes to find a coil that will match up with supply plenumn and the furnace opening. As stated the BTUH capacity which determines the CFM is the most important match up.


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