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  1. Replies
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    Thank you. Yes, that does help out a lot. I was...

    Thank you. Yes, that does help out a lot. I was getting confused from what I was being told. During my apprenticeship, I was taught by an ex supermarket refrigeration guy. He seemed very...
  2. Replies
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    16,861

    I'm going to go back and take another look at it...

    I'm going to go back and take another look at it sometime in the next week or so. He put a window unit in the room this past weekend, and the refrigerator cycled on and off and held temp. If there is...
  3. Replies
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    16,861

    Why would someone over charge a restriction to a...

    Why would someone over charge a restriction to a point that the suction pressure is too high? The flashing can be heard now. I actually heard it. When I sprayed the water on the condenser, it went...
  4. Replies
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    16,861

    I guess one thing I could do is check the...

    I guess one thing I could do is check the pressure early in the morning when ambient is 75 degrees. I was trying to achieve this by spraying water on the coil, but I don't know how accurate this...
  5. Replies
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    16,861

    Thanks for the help. I'm having trouble wrapping...

    Thanks for the help. I'm having trouble wrapping my head around what you are saying. It goes against a lot of things I was taught in school and learned in the field. If i t is overcharged, there...
  6. Replies
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    I did notice that it cycled on within a few...

    I did notice that it cycled on within a few minutes of cycling off, so I should add a delay on break timer. It is located in a very hot area, so heat gain will cause the thermostat cycle off time to...
  7. Replies
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    16,861

    Thanks for the help guys. Here are the reasons...

    Thanks for the help guys.

    Here are the reasons I do not think it is a restriction:

    -Hot liquid line. 25 degrees over ambient
    -High suction pressure

    If it was a restriction, there should be...
  8. Replies
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    16,861

    I looked at the unit yesterday: 94 ambient 33...

    I looked at the unit yesterday:

    94 ambient
    33 psig suction (R134a)
    liquid line temp 114 to 122
    Temp difference through condenser 20 degrees
    Compressor running right at RLA

    The unit seemed...
  9. Why has there been a recent obsession with heat loads (manual J)?

    I noticed there has been a recent trend to blame equipment selection and sizing as the root to a lot of issues. If you go back 5 to 8 years ago, people were not so quick to blame the equipment or not...
  10. Replies
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    16,861

    Thanks for all the help. I called my friend to...

    Thanks for all the help. I called my friend to get the model number, but half of it is not legible. Since the design temp of this box is at a lower temperature 35 to 40, should I bring the box...
  11. Replies
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    16,861

    reach in R134a cooler

    A friend of mine has a reach in to keep flowers. The setpoint of the cooler is 47 degrees. It will maintain this temperature for a few days and then it will not drop below 70 degrees. It uses a cap...
  12. I just never heard of a companies not offering...

    I just never heard of a companies not offering any type of labor warranty. I wasn't sure if Trane authorized dealers were required by Trane to provide labor warranties in order to be a dealer...
  13. I remember hearing that the XL line came with a...

    I remember hearing that the XL line came with a two year labor warranty, but I wasn't sure if that applied to new construction or not. Is this something Trane requires to sell the Xl line or for only...
  14. Does Trane or other manufacturers require labor warranties?

    Usually, a one year labor warranty is provided for new construction. Can authorized Trane dealers not provide labor warranties with new installs (new homes)? I know builders and contractors are...
  15. Replies
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    2,596

    Dash, What area do you service (counties)?

    Dash,

    What area do you service (counties)?
  16. Replies
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    2,596

    Dash, Is hanging the air handler in an attic...

    Dash,

    Is hanging the air handler in an attic new code (2007 Mechanical codes)? My brother just had his house built, and the air handlers were set on the trusses. I don't see a problem with it, as...
  17. Replies
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    917

    I just scrapped one. They gave me about $55. This...

    I just scrapped one. They gave me about $55. This was for all the copper and refrigeration coils. It takes about 15 minutes to break the unit down. I just used a reciprocating saw to separate the...
  18. Replies
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    876

    Some are factory charged to 15 feet, but they...

    Some are factory charged to 15 feet, but they weigh in charge on the nameplate accounts for 25 ft. Also, the weigh in charge accounts for a matched coil. Even with a mismatched coil that requires...
  19. Replies
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    876

    I have to disagree. The charge shouldn't be that...

    I have to disagree. The charge shouldn't be that far off from the name plate. I have never had to add 3 to 5 lbs above the weigh in charge to a residential unit to get it charged properly. There is...
  20. Replies
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    876

    It will give a ball park figure. If the nameplate...

    It will give a ball park figure. If the nameplate says 12 to 14 lbs on it, he can drop the whole issue. If it says 5lbs, then he can raise some issues. He's not asking for the exact weigh in charge.
  21. Replies
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    876

    Check the manufacturer label on the outdoor unit,...

    Check the manufacturer label on the outdoor unit, if it is still legible. It might have the refrigerant charge on it.
  22. What happened to new equipment change out prices?

    Why are the prices so low? The profit margins seem to have decreased substantially over the last 4 or 5 years. I remember when the price of a change out was at least double the equipment and supply...
  23. Replies
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    1,968

    I'm not referring to systems that need "frequent...

    I'm not referring to systems that need "frequent topping off." If a tech has to come back in a relatively short period of time, he needs to try and locate the leak. Every case or situation isn't...
  24. Replies
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    1,968

    One more thing, the tech is not ripping a...

    One more thing, the tech is not ripping a customer off by adding refrigerant and not finding a leak. The company isn't going to make any money by doing this. Most service managers do not like it when...
  25. Replies
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    The amount of refrigerant that needs to be added...

    The amount of refrigerant that needs to be added for a proper charge will be a determining factor on how to proceed. If only a marginal amount of refrigerant is added, a full blown leak detection may...
  26. Replies
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    How much refrigerant did you add 3 years ago? It...

    How much refrigerant did you add 3 years ago? It shouldn't have been anywhere near 3 lbs. Did you try to charge the unit when it was cold outside? A lot of techs overcharge new installs because of...
  27. Replies
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    1,968

    A heat pump runs in the heating and cooling...

    A heat pump runs in the heating and cooling cycles. It heats your house by reversing the refrigerant circuit. A straight cool condenser is just used for cooling cycles. It is usually paired with...
  28. Replies
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    His system is only around 10 years old. I think...

    His system is only around 10 years old. I think the tech is honest and isn't trying to sell him anything he doesn't need. In the real world, techs will not do a full blown leak search if the unit is...
  29. Replies
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    Should I go with an IAQ stat?

    This is for an upstairs unit that will be hardly used. No one is currently living up there. I was going to install an old Chronotherm iv or a Vision pro stat. The system is a Trane xr13 with variable...
  30. Replies
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    I have read that in order for the 10 year...

    I have read that in order for the 10 year warranty to transfer to the complete system (air handler as well). A Trane stat has to be installed. I am not sure how far they look into this. Other than...
  31. Replies
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    Is this a good matched system

    Trane XR 14 4TWR4036

    With

    Trane 4TEH3F42

    It will bring the numbers high enough to be eligible for the tax credit. The air handler just has a fixed ECM motor instead of a variable speed...
  32. Replies
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    785

    Vision Pro IAQ vs TCONT803

    What are the differences in these two stats? I see a lot of contractors are going with the IAQ stat. In order to get the 10 year extended parts warranty, don't you have to install the Trane stat as...
  33. Replies
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    bump anyone?

    bump
    anyone?
  34. Replies
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    SEER and EER on higher tonnage units

    Can someone explain to me why lower level product lines tend to outperform the high end lines on higher ton systems? It seems like the Carrier Performance 16 outperforms the infinity systems at...
  35. Replies
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    Differences in Trane product line

    What are the differences between the xr13, xr14, and xl15i?

    That pretty much seem the same as far as performance goes. I guess the XL series has a 12 year compressor warranty. Also, as far as...
  36. Are there matches not on AHRI that qualify for tax credit

    Are there some models not on the AHRI website that qualify for the tax credit? I'm particularly referring to Trane.
  37. Replies
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    459

    I'm looking for that as well. I was hoping the...

    I'm looking for that as well. I was hoping the coil plus pan is smaller than 22 1/2" tall.
  38. I'm looking for heat pumps. I was hoping they...

    I'm looking for heat pumps. I was hoping they would come out with a xl20i that would qualify.
  39. Replies
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    459

    Can someone help me out? I need this data...

    Can someone help me out? I need this data urgently. I would appreciate it greatly.
  40. Replies
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    459

    Coil size or part number

    Trane 4TEH3F42A1000A

    Can someone give me the dimensions of the coil in this unit? I'm particularly interested in the height of the coil (from the bottom of the drain pan to the top). Maybe, a link...
  41. Is Trane coming out with a 5ton that meets tax credit parameters?

    ^^^
  42. Replies
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    What are the differences between a XR 13 and...

    What are the differences between a XR 13 and XR14? Why would the XR13 perform better?
  43. Replies
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    1,064

    I know. I just can't hit those numbers in a...

    I know. I just can't hit those numbers in a confined space. I was have to use a 2/4TEE3F39* 39,000 58H 23.5W 21D

    I might be able to get it in, but the coil doesn't seem like it would be...
  44. Does anyone know the ratings for this system?

    Trane air handler:
    4TFB3F36A1D05A
    4TFB3F36A1D08A
    4TFB3F36A1D10A

    Matched with:

    XR 13 4twx3036a1
    XR 14 4twx4036a1
    XL 15i 4twx5036a1
  45. Replies
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    1,064

    Which system match is best (Trane)

    I live in Florida.

    Trane Systems:
    A/H OD unit cool cap EER SEER Heat cap HSPF
    XR13 4tee3f37b1 4twr3036a1 35600 12 14 ...
  46. How have you been able accommodate customers with...

    How have you been able accommodate customers with 3 ton units in attics that want 15 SEER? Most truss companies space 24 o.c. I guess if the house is conventionally framed; it wouldn't be an issue.
  47. Replies
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    Did you throw a level on the unit? If you look at...

    Did you throw a level on the unit? If you look at the water level in the pan, it looks like there is more water towards the rear of the unit. I had this same problem with an old Janitrol. In my...
  48. In order for it to pass code, all components have...

    In order for it to pass code, all components have to be able to be removed. This includes the evap coil and blower assembly. I usually just line up the middle of the air handler with a truss in order...
  49. Which air handler for this application

    What is the best Trane air handler for this application?
    3 ton heat pump
    The air handler sits in the attic. It sits between the trusses (24" o.c. 22 1/2" between them). I would prefer a TEE series...
  50. Difference between 4TEH and 4TEC air handler

    Are the Trane 4TEC air handlers supposed to be more compact? They seem to be the same size. I was hoping someone new the differences between the 4TEH and 4TEC air handlers.
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