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  1. I set the settings to a 3 ton with normal air...

    I set the settings to a 3 ton with normal air flow setting and 180 second run when the AC kicks off. I live in ft. Lauderdale. With my old settings at 2.5 ton and low air flow without the additional...
  2. I thought it was a 3 ton. Not sure why they had...

    I thought it was a 3 ton. Not sure why they had the dip switch in the AH set for 2.5 ton, or if it even makes a difference? I changed it to the 3 ton setting, maybe it will make a difference?
  3. 484511

    484511
  4. My AH dip switch settings are for a 2.5 ton, but...

    My AH dip switch settings are for a 2.5 ton, but I think it's a 3 ton
  5. Can someone tell me what tonnage my unit is?

    I have a Trane XR13
    Model 4TTR3036A1000AA
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    Never ran it without filters. I had to have a...

    Never ran it without filters. I had to have a coil cleaned many moons ago and don't want that again.

    It does run non stop during the day. My main problem is if the door is opened a few times, the...
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    398641 398651 The ceiling return is 18X18...

    398641

    398651

    The ceiling return is 18X18 but is reduced before entering the AH. The AC contractor suggested I have a 20X20 installed to help( the second pic). That's what they call a 20X20...
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    Why would that guy say smaller ducts would be...

    Why would that guy say smaller ducts would be better for me? I would think the solution would be to rebuild the plenum so I can add one or two additional supplies and increase the return so that its...
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    My humidity is less than 50, normally 45-47. My...

    My humidity is less than 50, normally 45-47. My AC runs 13 + hours a day. We keep the tstat on 76 and during the hottest times it is a couple degrees hotter and doesn't reach the set temp until the...
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    This is my problem. I get different opinions with...

    This is my problem. I get different opinions with different AC contractors. This last guy insisted 6" supplies with one direction vents would,cool quicker. I also wanted to add a vent or two,to the...
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    So, this guy is wrong? I told him I couldn't...

    So, this guy is wrong? I told him I couldn't understand why a 6" supply would be better than my 8" supplies, but he insisted it would cool the house better? And advise?
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    Need some more advise. The original contractor...

    Need some more advise.

    The original contractor won't return my calls, so I had another company come out and gave me another estimate, but his solutions were vastly different. He said my existing...
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    My wife called today and they just do commercial...

    My wife called today and they just do commercial properties.
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    No. I've had bad luck with precious contractors...

    No. I've had bad luck with precious contractors leading up to this point. I had one tell me I just needed a bigger return, which I paid for only to be in the exact situation ( this was the contractor...
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    I'm having trouble contacting the contractor who...

    I'm having trouble contacting the contractor who said I needed new duct work. Does anybody know any reputable contractors in the Ft Lauderdale area? I really need to get this done. Now that is
    Ts in...
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    Anybody know of any reputable contractors in the...

    Anybody know of any reputable contractors in the Ft Lauderdale area?
  17. Replies
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    Not sure what a heat load is, just that they...

    Not sure what a heat load is, just that they mentioned it. By the way, this is the first company to tell me they would get a permit, so I would think they are going to do it right. All my supply...
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    I think the hallway one will be used, but the one...

    I think the hallway one will be used, but the one in the ceiling will be removed.
  19. Replies
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    Thanks- 387501

    Thanks-

    387501
  20. Replies
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    My attic has probable 4 feet at the highest part,...

    My attic has probable 4 feet at the highest part, so there's got to be at least 4 feet from the top of AH to work with. They are going to remove the return in the ceiling to access to attic and...
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    Thanks for the info. The AC guy I was talking to...

    Thanks for the info. The AC guy I was talking to said they would eliminate the return in the ceiling and use that to access the attic. My house is a small 1200 SF and the attic space is 4' at most...
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    I don't have easy access to my attic without...

    I don't have easy access to my attic without moving a stackable washer/dryer. I've been told all my vents hook up to the plenum and that there is no room on the plenum to add additional vents. The...
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    1 more 387281

    1 more
    387281
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    More 387261 387271

    More
    387261
    387271
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    Ok, thanks-387231387241387251

    Ok, thanks-387231387241387251
  26. Replies
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    How will I know what are properly sized ducts and...

    How will I know what are properly sized ducts and installation are? I'm not a expert and am trusting the contractor. He mentioned getting a permit, so I assumed it would be correct because of that....
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    Right on all except I have two returns, one in...

    Right on all except I have two returns, one in the ceiling and one in hallway at entrance to both rooms. He said something about eliminating ceiling return because the 18" reduces to roughly half...
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    Sorry, my bad. Thanks for the responses. I knew...

    Sorry, my bad. Thanks for the responses. I knew I'd get unbiased suggestions because no one here is trying to get the job. I thought duct was duct even if mine is over 15 years old. I'm really hoping...
  29. Replies
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    Well, it seems my wallet will be $ lighter. It...

    Well, it seems my wallet will be $ lighter. It seems that a new duct system will cool more efficiently than what my system is doing now. I know neighbors with bigger homes who keep them cooler with...
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    There is no room on the plenum to add additional...

    There is no room on the plenum to add additional lines. The AC handler is in a bedroom closet, so the two bedrooms on either side seem about 5-10 degrees colder than the rest of the house. I wanted...
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    BTW it's 2.5 ton

    BTW it's 2.5 ton
  32. Replies
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    Advise needed please, sorry its long

    I had a variable speed Trane installed about 5 years ago and it seems to struggle during the hot summer time in Ft Lauderdale. I've had various techs out who can't really explain why. First one told...
  33. Thread: Nest tstat

    by johnml
    Replies
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    960

    Nest tstat

    I'm interested in the Nest thermostat. I've read they aren't compatible with variable speed air handlers. My current tstat, a Lux has just 4 wires (R-Y-G-W)
    I don't understand why the Nest won't...
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    Well, I had another tech come out tonight. He...

    Well, I had another tech come out tonight. He said I need a return put in. My existing returns are a 18 inch that reduces to the size of a large shoebox as it enters the AH and a 12X12 inch at the...
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    Help - Need Advise in Ft Lauderdale area

    I had a Trane 14 seer with a variable speed A/H installed two years ago. Well I just had my annual tune up. It turns out my coil was dirty (after two years ? ) I thought I needed some extra ducts...
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    The company that installed the AC and who is...

    The company that installed the AC and who is scheduled to come next week for a "tune up" and look at my duct work is ACCA certified and didnt know what a static pressure test is.
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    Thats the problem. I called a few AC companies...

    Thats the problem. I called a few AC companies and they dont know what a static pressure test is (I sure as hell dont). How can I find one that I can trust to be competent about the duct work ? I...
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    I'm having a tune up next Friday, so some of...

    I'm having a tune up next Friday, so some of those questions will be answered. The outside unit and the inside unit were replaced together. The only thing they didnt touch was the existing duct work...
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    my system is a 3 ton trane with a variable speed...

    my system is a 3 ton trane with a variable speed a/h
    The original intake was a 18 inch, but narrowed down before entering the a/h.
    They did install a 12 inch to add more air intake.
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    My wife called the company that installed the air...

    My wife called the company that installed the air conditioner and the service guy she talked to didnt even know what a static pressure test is ? Can anyone recommend a honest AC person/company in the...
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    From what Ive been getting on the web is some...

    From what Ive been getting on the web is some companies will do a tune up for XX and some companies do it for XXX. I dont mind paying more if it better. I dont know what the difference is if any in...
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    My bad - was hoping to get a idea of what it...

    My bad - was hoping to get a idea of what it should/would cost me. Any recommendations ?
  43. Replies
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    Adding a Duct and Tune up

    I got a new Trane 3 ton with a variable speed air handler installed last year. How do I know if the existing duct work is adequate for the new system ? I would have thought the new system would have...
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    Poll: Thanks for the info, I dont have a humidity...

    Thanks for the info,
    I dont have a humidity problem (that I know of) I usually run my AC 10 months out of the year and the heater maybe a total of 20-30 hours a year at most. It's humid down here,...
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    Poll: Here in South Florida I have never seen a filter...

    Here in South Florida I have never seen a filter that is thicker than a inch. I wouldnt even know where to get a thicker one. I usually get mine at Lowes or Home Depot.
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    Poll: Thanks - I intended no disrespect. It seems the...

    Thanks - I intended no disrespect. It seems the majority of the people I know dont call a AC company until somthing is wrong.

    Would it benifit me to get a different TSTAT ? One that controls...
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    Poll: My intent was to get honest advise like I had...

    My intent was to get honest advise like I had done before on this site. I never mentioned crooks and theives and scams - is that what you think ? not me. (guilty consceince) Man, I really opened a...
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    Poll: I'm guessing by your sour response your the type...

    I'm guessing by your sour response your the type of tech that was on Dateline. All im asking is whether or not to have it done. I dont need someone to agree with me. The reason I post on this site is...
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    Poll: My only reasoning for posting this question was :...

    My only reasoning for posting this question was : The company that replaced my old AC 10 years ago called and told me they changed companies and told me I was due for a tune up. They told me they...
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    Poll: I understand your reasoning, But, don't I pretty...

    I understand your reasoning, But, don't I pretty much do what a tune up is already ? I change the filters like clock work, keep the drain line clear and have pretty good tstat. Whats in a cleaning ?...
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