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  1. #27
    Join Date
    Nov 2000
    Location
    Eastern PA
    Posts
    68,933
    I'm sorry you didn't understand my posts correcting you duct dr. I am also sorry that you just want to argue to the point of again posting wrong information. If all you want to do is to pass on innacurate information that "you heard", then I will continue to correct you.

    Here is your current correction;

    There is no such thing as a 3 ton coil so it is innacurate to state that "a 3 ton coil is a 3 ton coil and they are all the same size." That is just wrong.

    The higher the efficiency, the larger the outdoor coil must be. The larger the outdoor coil must be, the larger the indoor coil must be to accomodate the amount of additional refrigerant in the system.

    However; by installing a TXV we can reduce the physical capacity of an indoor coil because we have a variable metering device that will contiue to regulate the system superheat despite the smaller coil capacity.

    This is exactly what we strive to do to increase dehumidification in humid areas. Also, it is a good practice to use TXV metering for a system that is going to operate in cooling at lower outdoor temperatures and/or low loads.

    A TXV also allows the efficiency rating to increase without making the coil larger to match the higher efficiency outdoor units. You can add additional SEER points by either adding a TXV or by increasing the size of the coil. This is where the cost factor of TXVs actually saving money on the cost of building coils comes in to play.
    Government is a disease...
    ...masquerading as its own cure…
    Ecclesiastes 10:2 NIV


  2. #28
    Join Date
    Feb 2005
    Location
    Alabama
    Posts
    534


    [Edited by duct dr on 03-17-2006 at 12:02 AM]
    "If you can't fix it, don't break it."

  3. #29
    Join Date
    Apr 2004
    Posts
    7,680
    The OP was asking about a heat pump, no TXV will fix a charge imbalance issue.

  4. #30
    Join Date
    Feb 2005
    Location
    Alabama
    Posts
    534
    There is no such thing as a 3 ton coil so it is innacurate to state that "a 3 ton coil is a 3 ton coil and they are all the same size." That is just wrong.




    Then what is a CK5AXA036, what is a 561CJX036, what is a CE3AXA036, what is a FC4CNF036. Answer, a 3 ton coil, a 3 ton condensor, another 3 ton coil, and a 3 ton airhandler. Yet you say there is no such thing. And yes, a CK5AXA036 coil with a #68 piston is the same size as a CK5AXA036 coil with a TXV.


    Ah just forget it man, it's pointless. I'm outta here. Later!
    "If you can't fix it, don't break it."

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