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  1. #14
    Join Date
    Dec 2007
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    Ohio
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    Quote Originally Posted by trent81 View Post
    I would have a leak test done the company i work for also waves the leak test fee if u bought a new system from us. I would want to know wher the leak is 90% of the time the leak is in the indoor coil. as for equipment, 13 seer or higher and make sure if u do go with a whole new 13 seer system that they add a txv valve not a fixed orfice. running a fixed orfice will only get u about 11 seer on a 13 seer system.

    A fully matched 13 seer system, even with a fixed orifice, will indeed give you a 13 seer rating. My equipment will actually reach over 14 seer without the addition of a TVX.

    That being said, a TXV is a good thing, add in a variable speed motor and we are now starting to get comfy!
    I need a new signature.....

  2. #15
    Join Date
    Jan 2004
    Location
    Lancaster PA
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    67,770
    Quote Originally Posted by trent81 View Post
    , 13 seer or higher and make sure if u do go with a whole new 13 seer system that they add a txv valve not a fixed orfice. running a fixed orfice will only get u about 11 seer on a 13 seer system.
    And what proof of this do you have. or are you just stating an unfounded opinion.
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  3. #16
    Join Date
    Jun 2003
    Location
    Hell Hole Swamp
    Posts
    4,180
    Goodman gets 13 seer with fixed metering, even with 410a

  4. #17
    Join Date
    Jan 2004
    Location
    Lancaster PA
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    67,770
    Quote Originally Posted by Swampfox View Post
    Goodman gets 13 seer with fixed metering, even with 410a
    A couple brands do. Or they wouldn't have ARI ratings of 13SEER.

    And I just don't recall any brand getting a boost of 2 SEER just for adding a TXV.
    But, I'm old and senile, so I may have just forgot.
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  5. #18
    Join Date
    Dec 2007
    Location
    Ohio
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    2,875
    Quote Originally Posted by Swampfox View Post
    Goodman gets 13 seer with fixed metering, even with 410a
    Goodman actually can get 14 seer without a TXV!!
    I need a new signature.....

  6. #19
    Join Date
    Dec 2007
    Location
    Ohio
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    2,875
    Quote Originally Posted by trent81 View Post
    running a fixed orfice will only get u about 11 seer on a 13 seer system.

    I want proof of this statement.....and not just because some dude in a pickup truck with a magnetic HVAC sign said so!
    I need a new signature.....

  7. #20
    Join Date
    Jan 2004
    Location
    Lancaster PA
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    67,770
    Quote Originally Posted by I_bend_metal View Post
    I want proof of this statement.....and not just because some dude in a pickup truck with a magnetic HVAC sign said so!
    What if its a van with a magnetic sign. LOL
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  8. #21
    Join Date
    Dec 2007
    Location
    Ohio
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    2,875
    Quote Originally Posted by beenthere View Post
    What if its a van with a magnetic sign. LOL
    Better be a bigger freaking sign in that case!
    I need a new signature.....

  9. #22
    Join Date
    Mar 2008
    Location
    Houston, Texas
    Posts
    352
    Quote Originally Posted by I_bend_metal View Post
    Goodman actually can get 14 seer without a TXV!!
    Many things can be done on paper that don't exist in the really real world. IMHO this is one of the few ways Goodman can degrade itself. Do they even have anything on paper for their reasoning behind sticking with the piston?

    The only reason I can think of is if you have an evaporator that failed on a 30 year old "beer can cold" compressor. If you correct the charge...it will die.


    "If you build it they will come"
    Last edited by Skip 2 my lou; 06-20-2008 at 07:56 PM. Reason: mangled hooks for fingers.

  10. #23
    Join Date
    Jan 2004
    Location
    Lancaster PA
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    67,770
    I don't recall ARI having Goodman rerate any or those units.
    Some other manufacturers had to rerate some of their units.
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  11. #24
    Thanks again for all the feedback. The contractor is going to come out and perform a leak check on the existing system. If I buy anything new, they'll waive the cost.

    With that in mind, I had a follow on question. They're quotting me Lennox units for the total replacement option. Can anyone give me an opinion of these models...

    13ACX-048-230 and CH33-48C

    XC13-048-230 and CH33-50/50C

    They're both 13 SEER. The first one has a five year parts and one year labor warranty while the second up the compressor warranty to ten years. The second system is supposed to be quieter as well but that's not really a big deal to me. As expected, the second one is more money.

    Any feedback on these systems?

    Thanks!

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