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  1. #1
    Join Date
    Jun 2006
    Posts
    24
    Hi,

    We just replaced our coil (American Standard 3 ton, model number: 2TXCB036AC3HCAA) because it leaks freon. A month later, the compressor won't start and the technician said we need a new condensor(he did tried the hard start). They quoted a Rheem (3 ton 13 sheer) for us. He also said it's high efficient.

    Since we can't replace the new coil, my question is, if the coil is not energy efficient (which I'm not sure), with this energy efficient condensor, do we still reach the purpose of "efficient AC"?

    What kind of match of the inside and outside units we should look for?

    Also, is the AC efficiency related to furnace efficiency?

    Another question, is "American Standard" a Trane?

    Thank you very much for any help!

  2. #2
    Join Date
    Mar 2005
    Location
    burlington county n.j.
    Posts
    9,764
    Originally posted by soldier4
    Hi,



    What kind of match of the inside and outside units we should look for?

    Also, is the AC efficiency related to furnace efficiency?

    Another question, is "American Standard" a Trane?

    #1 an ARI rated match, won't get that with A S coil and Rheem unit.

    #2 v drive blowers can raise efficiency.

    #3 related

  3. #3
    Join Date
    Jun 2006
    Posts
    24
    Thanks!

    But what should match this American Standard coil? It's a 3 ton (and TXV).

  4. #4
    Join Date
    Aug 2006
    Location
    High Point, NC
    Posts
    155
    American Standard or Trane dealer should be able to tell. Have you had Manual J done to verify the size is correct. Have system size verified by Manual J. The outside unit proposed is a good outside unit. The indoor coil is a good indoor coil. THEY ARE NOT A GOOD MATCH! Did you have a Trane or American Standard unit when the coil was replaced?
    I would call another contractor and see if they do a load calculation. If necessary, I would forget the indoor coil. get a recommendation from a contractor in your area that is more concerned about doing the job right vs. selling you a mismatched piece of equipment to reuse your coil. Probably not what you want to hear, but the quality contractor would rather not do the job than do the job mismatched.

  5. #5
    Join Date
    May 2000
    Location
    Indianapolis, IN, USA
    Posts
    34,600
    The new coil has a non-bleed TXV on it. The outdoor unit would need a full blown hard start kit on it, not just a super boost. Did they do this when they installed the new coil?

    Anyway, the right way is to install a new Trane or A-S outdoor unit to match that coil. Between the 2 brands, the builder "B" models are identical, the XR13 and Allegiance 13 are mechanically the same with different cabinets. As you have been told, a Rheem outdoors isn't matched to the new coil.

  6. #6
    Join Date
    Jun 2006
    Posts
    24
    The newly replaced coil is American Standard.

    Also, is replacing the Goodman compressor another choice if the budge is an issue for us now?

  7. #7
    Join Date
    May 2000
    Location
    Indianapolis, IN, USA
    Posts
    34,600
    They are absolutely sure it is locked up? A simple superboost won't always start a recip against a TXV. They need to install a full start cap/relay combo for the old unit to work with the new coil.

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