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  1. Replies
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    Normally each at .03

    Normally each at .03
  2. Replies
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    358

    Don't forget your supply and return registers and...

    Don't forget your supply and return registers and grills, strip heaters, and anything else that will cause a pressure drop.
  3. Replies
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    291

    X2. Well said

    X2. Well said
  4. Replies
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    358

    We have installed a lot of XV20i's and XV18 its...

    We have installed a lot of XV20i's and XV18 its little brother and they have operated flawlessly. The dealer that says they are troublesome does not have a clue. Yes they are both probably more...
  5. Replies
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    291

    If your talking about a RAFG that 1,000 sq inches...

    If your talking about a RAFG that 1,000 sq inches would be a correct minimum number
  6. Yup I agree. Hank Rutkowski the author of many...

    Yup I agree. Hank Rutkowski the author of many of the ACCA Manuals ( J,D,S,T,RS P and a lot more) says it his way. For radiant heat to occur, the surface of the skin must "see" the radiating...
  7. The first chapter, first page of Manual "RS"...

    The first chapter, first page of Manual "RS" (Comfort , Air Quality, and Efficiency by Design) does a great job of answering your question. But in essence states That when occupant comfort is...
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    We sell lots and lots of Trane multi stage...

    We sell lots and lots of Trane multi stage equipment and I cant say I have EVER had a customer tell me they regretted the upgrade.
  9. The author of Manual J ( Hank Rutkowski)...

    The author of Manual J ( Hank Rutkowski) recommends that you use average on envelope leakage unless you have done a blowerdoor to show a tighter structure number.
  10. Replies
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    2,829

    Well the idea is that the air that is being...

    Well the idea is that the air that is being removed from the attic is being replaced threw your gable vents and that is partially true. But what is also true is air is being removed from your home...
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    Who convinced you to add an attic fan. It is most...

    Who convinced you to add an attic fan. It is most likely doing much more harm than good. And yes as others have already said it is not undersized.
  12. And you think Trane is not involved in the sticky...

    And you think Trane is not involved in the sticky TXV issue? For that matter so is Amana, Goodman and there parent company Daikin along with Carrier and all its divisions..
  13. Replies
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    289

    Amit Gupta ( Aeroseals CEO) and a group of...

    Amit Gupta ( Aeroseals CEO) and a group of investors purchased Aeroseal from Carrier a few years back. Mr. Gupta held various positions with Carrier Corporation in Indianapolis and with TATA Motors...
  14. Replies
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    You have the type of system that you would be...

    You have the type of system that you would be well advised to set it and forget it. Your using your controller like its a light switch controlling a light and its not.
    Find a temperature that your...
  15. Replies
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    Amit Gupta and Brendan Reid will make I good team...

    Amit Gupta and Brendan Reid will make I good team and I believe this will to a big benefit to both organizations
  16. Replies
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    647

    What speed does your 950 controller say the...

    What speed does your 950 controller say the compressor is running at when you think it is struggling to maintain your comfort? What temp is it set at and what temp is it running at?
  17. Replies
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    633

    X2 If its a Copeland scroll it fits the frozen...

    X2 If its a Copeland scroll it fits the frozen coil syndrome. It will usually show up after a few weeks of operation. Not saying your system is wired correctly, it sounds like it is not. But that's...
  18. Replies
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    LOL Trane produced there first inverter system...

    LOL Trane produced there first inverter system in 1987 the XV1500.There still are many operating in my area where 120* days are common.
  19. Thread: XL20i noise

    by jimj
    Replies
    40
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    2,496

    Zone one is right at 100% and is less than 1/2...

    Zone one is right at 100% and is less than 1/2 degree from thermostat setting. Zone 2 is at 29% and .3 degrees from set point. Yes your TESP is .31 which is nothing even close to its capability.
  20. Replies
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    I would have them do the install correctly, and...

    I would have them do the install correctly, and that starts with a manual J for system sizing, manual S for unit selection! And then manual D for your duct system sizing and complete a duct leakage...
  21. Replies
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    301

    Dirty air filters = less airflow= colder SADB...

    Dirty air filters = less airflow= colder SADB temp. Read PHM's post again, there's your answer!
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    3,051

    X2

    X2
  23. Replies
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    3,051

    Ed did they teach you about super heat and sub...

    Ed did they teach you about super heat and sub cooling at tech school?
  24. Replies
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    1,333

    Yes I have one, for the price its really a pretty...

    Yes I have one, for the price its really a pretty cool tool. Is it as good as my TSI Fluke? No, but sure is a lot less expensive. Its a great tool for me to have in my pocket when doing estimates and...
  25. Replies
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    There's more to maintaining comfort in a room...

    There's more to maintaining comfort in a room than heating and cooling (meaning air flow). Has the insulation been looked at? Are there interior door closures at certain times of the day causing...
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    Believe me there is a lot more cost involved in...

    Believe me there is a lot more cost involved in what you got than the cost of the part. No that is a very fair price.
    You might also want to read the rules here! No pricing is allowed.
  27. Very ,very doubtful the city will have any...

    Very ,very doubtful the city will have any information that will help with your issue. But your local utility may very likely have a duct seal/test program that will help you. As said about a Duct...
  28. Thread: Goodman

    by jimj
    Replies
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    449

    Goodman and its parent company (Daikin) are the...

    Goodman and its parent company (Daikin) are the largest manufacturer of residential air conditioning in the world, so they must be doing something right.
  29. I think at the rate your going your going to be...

    I think at the rate your going your going to be changing a lot of parts. I'm guessing your Trane guy from the supplier is a parts guy and not a tech? A tech that knows what he is doing will find your...
  30. The XL19i was the top of the line Trane system...

    The XL19i was the top of the line Trane system when it was made and a little more sophisticated than its single stage brothers. You have a great unit, I really would advise you to fine a Trane dealer...
  31. Thread: c.f.m. per ton

    by jimj
    Replies
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    574

    Its really based on your SHR ( sensible heat...

    Its really based on your SHR ( sensible heat ratio). In Phoenix ( Arid climate) with a high SHR your 450 cfm per ton would be good, however in Miami ( Humid Climate) with a low SHR you would be...
  32. Thread: Made in USA

    by jimj
    Replies
    66
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    2,850

    Daikin ( parent company of Goodman) inverter mini...

    Daikin ( parent company of Goodman) inverter mini splits will begin production in the USA in the next couple of months.
  33. Replies
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    Yes based on outdoor unit tonnage,...

    Yes based on outdoor unit tonnage, but......................

    Truth be told it should be based on your SHR ( sensible heat ratio) from your Manual J, S and manufacturer extended ratings.
  34. Replies
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    First off anyone sizing by square footage, be it...

    First off anyone sizing by square footage, be it 400 or 600 should not be considered. You need someone that will do a manual J for your job for proper sizing and then match it to the manufactures...
  35. And some times if you do it just right you can...

    And some times if you do it just right you can even have a little fire to warm yourself. LOL
  36. The increase in AIR FLOW would increase your...

    The increase in AIR FLOW would increase your supply air temps at your supply register.



    You most likely are closer to your proper air temps now than before when moving only 1000 cfm on a 3 1/2...
  37. LOL :payattention:

    LOL :payattention:
  38. Replies
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    Jim will you be filling back orders first? Got...

    Jim will you be filling back orders first? Got notice of the simm card being shipped but nothing on my June order of the wireless probes.
  39. Replies
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    X2

    X2
  40. Replies
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    LOL Maybe only 1,000 or so!

    LOL Maybe only 1,000 or so!
  41. . Normal design is 75* but many people ( like...

    .

    Normal design is 75* but many people ( like you) like it cooler and having had that discussion with your contractor you should not feel bad for asking for your new system to have the ability do...
  42. Replies
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    Yes and Yes. I would advise having a Pro...

    Yes and Yes.




    I would advise having a Pro check the evap coil.
  43. Did the contractor ask about your temperature...

    Did the contractor ask about your temperature preference?
  44. Do you set your thermostat to 74* and not touch...

    Do you set your thermostat to 74* and not touch it and the temperature creeps up or do you set it up to a higher temperature during the day and set it down in the evening?
  45. If there is a mechanical problem up sizing the...

    If there is a mechanical problem up sizing the unit is not the answer. If everything is truly operating as it should than either a larger unit or improvements on the home to reduce heat gain is .
  46. Replies
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    I'm in Lake Havasu. I will tell you your present...

    I'm in Lake Havasu. I will tell you your present unit with the upgrades your making to the home will have no problem maintaining 74* or 75* at peak load of the day ( and may be oversized at that)....
  47. Replies
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    740

    What part of Arizona are you in?

    What part of Arizona are you in?
  48. Replies
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    1,839

    So we have an over sized unit on an undersized...

    So we have an over sized unit on an undersized duct system that will now have more duct leakage than ever before and is short cycling with reduced comfort! So there answer to reduce the load by...
  49. The reasons above are why you do a manual "J" and...

    The reasons above are why you do a manual "J" and then a manual "S" when replacing a system. I could care less about what size system was there or it's nominal tonnage, I care about the system we...
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    Go here and this might help. Hank is the author...

    Go here and this might help. Hank is the author of Manual J. http://www.buildingknowledge.com/wp-content/uploads/2014/02/ACCA_MJ8_Dos_Donts.pdf
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