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  1. #1
    Join Date
    Sep 2012
    Posts
    11

    Confused I am too fussy? Ordered a 4 ton replacement. Dealer installed 3.79 BTUs instead

    I selected a Trane contractor to replace two units in my home ( one 4 ton and the other is a 2 ton). The dealer installed a 4 ton condensing unit outside 4ttb4049E (4ton) with a GAM5...32 (3.5 ton) air handler inside.

    It does get the 16 seer rating but only has 45,500 BTU which is 3.79 tons and not the full 4 (48,000 BTUs) that I ordered from the dealer. It's only been one day and it seems to cool the house fine so far but I am feeling like I didn't get what I paid for. I wonder if I am going to have problems down the road. Does having a smaller air handler inside cause the compressor to work harder and cause an eventual failure from wear and tear?

    The dealer is offering me $ off my invoice because he does want to remove the 3.5 and give me the 4 ton I ordered and paid for. Is $ the "real" difference between the 3.5 vs the 4 ton air handler? or are they still scamming me?

    The second unit (the 2 ton) is up in the air. I may find another contractor for that one since I am feeling like these guys aren't very trustworthy. If I would not have checked the model numbers online, I probably still would not have known they slipped in a smaller air handler.

    What should I do? I just want a peace of mind in the long run.
    Last edited by beenthere; 09-17-2012 at 07:01 AM. Reason: removed price question

  2. #2
    Join Date
    Jun 2011
    Location
    Seattle WA
    Posts
    1,225
    I wouldn't sweat it. We're only talking about a 1,000 BTU difference between the two units. And it is a certified AHRI match. Also, it has a slightly better SEER rating as well. Maybe the contractor picked the AHRI match up with the highest SEER rating. Thats what I would do if the homes sizing calc could do without the extra 1k BTU and slightly less airflow. The airflow could also be a reason why he went with that air handler. I always make sure that the duct is capable of the full 4 tons of air, if its a bit shy the 3.5 is a perfect solution. Here is the AHRI reference # for both the GAM542 and the GAM548 to compare:

    GAM542
    4150838
    http://www.ahridirectory.org/ahridir...ultSearch.aspx

    GAM548
    4150839
    http://www.ahridirectory.org/ahridir...ultSearch.aspx

    Honestly, he should have been able to tell you what I'm telling you though... Who knows what the motive was but all I'm sayin' is that you have an engineered match and its unlikely that you are going to see any kind of problem in my opinion.
    America; first we fight for our freedom,
    then we make laws to take it away.

    -Alfred E Newman

  3. #3
    Join Date
    Feb 2007
    Posts
    190
    Wheather you are picky or not would be determined by what your load calc says. From the Pictures I am guessing that you wont be able to get that from this contractor. I dont know when this was installed but as of March 15, 2012 a load calculation is required to change a system in Florida

  4. #4
    Join Date
    Sep 2012
    Posts
    11
    Thanks Liberty! I should just take the $ huh? Would have been less confusing if they would have been upfront or offered me some type of explanation. They seemed more like they knew they were "busted" and offered a settlement.

    aside from that....the air handler blows louder than my old cluncker. I expected less noise from a Trane. Is there anything that I can do to make it quieter? Can I change the bi fold shuttered door to a solid door? does it needs the ventilation from the shutter door? Can I have someone build more installation at the bottom of the stand its sitting on?

    the air handler closet is location right in the hallway near all 3 bedrooms
    Last edited by beenthere; 09-17-2012 at 07:02 AM. Reason: price

  5. #5
    Join Date
    Sep 2012
    Posts
    11
    Liberty,

    Actually, its like 3000 btu difference. a 4 ton is 48000 and the unit they installed in 45,500. which means it is 3000. Is 3k btu enough to make a stink over dollars and sense wise.

  6. #6
    Join Date
    Aug 2004
    Location
    North Richland Hills, Texas
    Posts
    14,914
    Quote Originally Posted by sam324 View Post
    Liberty,

    Actually, its like 3000 btu difference. a 4 ton is 48000 and the unit they installed in 45,500. which means it is 3000. Is 3k btu enough to make a stink over dollars and sense wise.
    There are no matchups with any air handler with that outdoor unit that result in 48000 btuh of total capacity. The only 48k+ btuh system matches are with a furnace and coil inside.
    This is actually quite common.

    Quote Originally Posted by sam324 View Post
    aside from that....the air handler blows louder than my old cluncker. I expected less noise from a Trane. Is there anything that I can do to make it quieter? Can I change the bi fold shuttered door to a solid door? does it needs the ventilation from the shutter door? Can I have someone build more installation at the bottom of the stand its sitting on?
    Can you post pictures of the setup?
    Having a unit on a stand, with an open return, is somewhat less than ideal for sound attenuation...
    There is a sound deadening kit listed for those air handlers, but I'm not sure what is in it.

    In my area we don't have units on stands in a closet, so we haven't had the kind of noise complaints I've seen from people that have an open return with the unit on a stand.
    If more government is the answer, then it's a really stupid question.

  7. #7
    Join Date
    Sep 2012
    Posts
    11
    Quote Originally Posted by mark beiser View Post
    There are no matchups with any air handler with that outdoor unit that result in 48000 btuh of total capacity. The only 48k+ btuh system matches are with a furnace and coil inside.
    This is actually quite common.



    Can you post pictures of the setup?
    Having a unit on a stand, with an open return, is somewhat less than ideal for sound attenuation...
    There is a sound deadening kit listed for those air handlers, but I'm not sure what is in it.

    In my area we don't have units on stands in a closet, so we haven't had the kind of noise complaints I've seen from people that have an open return with the unit on a stand.

    Thanks for the reply.

    Here are the pics of the Air handler on the stand. Thank you. I will try looking into finding out about sound deadening kit. We live in Miami and its been set up that way forever.




    Attached Images Attached Images   

  8. #8
    Join Date
    Jan 2004
    Location
    Lancaster PA
    Posts
    66,789
    If the 3.5 is louder then what you have, think how much louder the 4 ton would be.

    The 3.5 may remove more moisture from the air then the 4 would. So you may actually be better off with the 3.5 then you would have been with the 4.




    PS: Neither prices or price questions are allowed here.
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  9. #9
    Join Date
    Jul 2006
    Location
    Virginia
    Posts
    4,512
    Im curios as to why you have straight cooling and did not opt or a heat pump
    We really need change now

  10. #10
    Join Date
    Sep 2012
    Posts
    11
    We live in Miami in sub tropic heat. I don't know of anyone here that owns a heat pump. It's never winter here. I think what is common here is called heat strips. I haven't used my heater in years.

  11. #11
    Join Date
    Sep 2012
    Posts
    11
    Error
    Last edited by sam324; 09-17-2012 at 01:50 PM. Reason: Error

  12. #12
    Join Date
    Aug 2004
    Location
    North Richland Hills, Texas
    Posts
    14,914
    Wow, that is a terrible "stand", hard to believe it passed a code inspection...
    There isn't even an emergency drain pan, and part of the suction line is exposed where it enters the air handler.
    It may be a trick of the camera, but it looks like a red LED is flashing an error code.
    In normal operation, with no errors, there should be no red lights flashing, just blue and green.

    AS/Trane makes an adjustable metal return stand, BAYPLENM120.
    It looks like there is plenty of room in the closet for some baffles to block sound, without restricting airflow. The Hyperion air handlers have the blower in the bottom, so don't have anything blocking the air noise from the blower like a regular air handler does.
    If more government is the answer, then it's a really stupid question.

  13. #13
    Join Date
    Jun 2007
    Location
    Round Rock
    Posts
    3,405
    That's not a stand, that's a sawhorse. That's a joke. He couldn't even spring for a piece of plywood. Is that the way the other one was as well?
    I like DIY'ers. They pay better to fix.

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