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  1. No, it cannot be done.

    No, it cannot be done.
  2. Replies
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    Have you changed the thermostat

    Have you changed the thermostat
  3. Replies
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    2,485

    Jesus was perfect too (according to who...

    Jesus was perfect too (according to who believes). But he got criticized all the time. So don't ask. Enjoy it if you think it is best for you.
  4. Od temp has nothing to do with your issue....

    Od temp has nothing to do with your issue. Service call
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    1,136

    Must use OEM motor. Don't ask me why. Otherwise,...

    Must use OEM motor. Don't ask me why. Otherwise, you will keep replacing it yearly.
  6. That is a 5 tons blower. It is capable of moving...

    That is a 5 tons blower. It is capable of moving more than 2000 cfm. Make sure you ask the contractor to configure it to run less than 1400 cfm in your case (I like 1250 max on your case even though...
  7. By the way, according to Lennox, use approach...

    By the way, according to Lennox, use approach when ambient is warm above 65 degrees; use sub cool during cool weather belie 65 degrees AND also artificially raise the head pressure above 105...
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    1,246

    I thought NO DIY site

    I thought NO DIY site
  9. You are correct. Today Lennox systems, you will...

    You are correct. Today Lennox systems, you will see that they don't have much of an subcool. Sometimes, it will surprise you.
    But, think about it a little bit. These system run at lower saturated...
  10. You don't need to have llsv on your setup. In...

    You don't need to have llsv on your setup. In facts, it is not good to gave them since it create more issues than help.

    Run the system at lower cfm than 400 since you bring in OSA.

    Try not yo...
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    If you open the wall up, have same contractor out...

    If you open the wall up, have same contractor out to fix the kink cause it is not good to have it.
    $$$ is between you and your contractor.
  12. With my experience dealing with these trane...

    With my experience dealing with these trane climatuff, you MUST use trane start components. I don't know why but other start kit won't work well with it.
    2nd run your system in a/c mode normally for...
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    90% of the time, it is the duct works in the...

    90% of the time, it is the duct works in the attic not properly sealed. Especially, when it is 130 degrees up there. I am sure the installers want to get the heck out of there QUICK.
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    Small panel next to the LEDs located on the short...

    Small panel next to the LEDs located on the short side where the water manifolds/pipes connections are.
  15. Replies
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    1,612

    And the oil keeps disappear? Or the level is...

    And the oil keeps disappear? Or the level is still 1/2 way like you added and it still tripping?
  16. If it served you well for 20 years, then why...

    If it served you well for 20 years, then why change something different?

    Upgrade to higher SEER if you can afford.
    Stay with the technologies.
    Last, stay with Lennox.
  17. Replies
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    Your problem is at outdoor. Trane normally uses...

    Your problem is at outdoor.
    Trane normally uses x-valve on both inside and outside next to the txv. Hopefully you did not remove the old x-valve when you changed the old txv.

    By the way one-way...
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    It depends on the leakage rate VS the vacuum pump...

    It depends on the leakage rate VS the vacuum pump CFM rate.

    That's why we MUST turn the pump off when it reaches the (magic number or I call it BS number) and wait for 15 to 20 minutes. If the...
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    You diagnosed correctly.

    You diagnosed correctly.
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    789

    I think you meant start winding like those old...

    I think you meant start winding like those old Trane did in the early 80's.
  21. All old version ECM (motor with 16 pins) have a...

    All old version ECM (motor with 16 pins) have a PWM on pin 10 like you said. BUT, today ECM motor no longer use PWM. They are communicating with 1 and 0.

    You may wanna scratch your idea with ECM....
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    Large is good. Just look out for 2 things: 1-...

    Large is good. Just look out for 2 things:
    1- noise since the hole is larger for the blower noise to travel (especially if you have gas heater in the closet).
    2- if you use 1" filter, the filter...
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    Low DT = make sure heat strips not running

    Low DT = make sure heat strips not running
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    If there is no piston, do you think the OP would...

    If there is no piston, do you think the OP would have such data?

    Think dude!

    That why i said "huh"

    Think man! Think!
  25. Replies
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    2,107

    The OP said "8 DT on indoor coil". If it is lack...

    The OP said "8 DT on indoor coil". If it is lack of air flow, then we should have high DT. Common guys.




    Oh yeah baby! Adding more freon will solve all problems relating to A/C.


    To the...
  26. Replies
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    Huh! That is the best...

    Huh!





    That is the best question/advice so far.
  27. Replies
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    Is that the TXV that has a nut fitting on the TXV...

    Is that the TXV that has a nut fitting on the TXV outlet, the external line has a 1/4" flare nut, BUT the liquid inlet end of the TXV is solder ????

    If it is then that is DUMBEST design I've seen....
  28. Ask your contractor to set the CFM for 600.

    Ask your contractor to set the CFM for 600.
  29. Replies
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    2,289

    Turn you ac on cool. Go outside for 30 minutes...

    Turn you ac on cool. Go outside for 30 minutes and close all doors. Crack Open you frnt door . If you feel strong cool air hitting your face while opening the door , you have bad installation of...
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    So your dewpoint in the crawl space is 69 to 70...

    So your dewpoint in the crawl space is 69 to 70 degrees. This means if any surface or object is cool at 70 degrees, you will see sweat.

    Bring a bottle of beer that is 69 degrees and put in this...
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    Wonder what is your temperature and your humidity...

    Wonder what is your temperature and your humidity level in the craw space.

    It is all about dewpoint.

    http://en.wikipedia.org/wiki/Dew_point
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    It is time you spend the money to pull that coil...

    It is time you spend the money to pull that coil outside to thoroughly clean it. Those type of coil design by carrier has a very strange path of air flow through it coil. You cannot shine the light...
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    This stat uses the outdoor unit's ambient sensor....

    This stat uses the outdoor unit's ambient sensor. Unless you don't have the communicated outdoor unit, then you can add it as an optional item.

    Maybe the updates are for daily improvement. You can...
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    Can you provide the model on the od unit? This...

    Can you provide the model on the od unit? This will help clear out lots of questions
  35. Option #2. Skip the 95% furnace cuz you will not...

    Option #2. Skip the 95% furnace cuz you will not get the money back since you couple them with a heatpump.
  36. Besides you are a cold nature person, you have...

    Besides you are a cold nature person, you have serious problem with humidity in your house.
    Please google search about humidity level and comfort to learn more. It will also help you reducing...
  37. Replies
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    I said "Replace the CR relays " not the CPCS board

    I said "Replace the CR relays " not the CPCS board
  38. Replies
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    Replace those 4 CHEAPO control relays...

    Replace those 4 CHEAPO control relays (CR-A1,CR-A2, CR-B1, and CR-B2) to these IDEC relays http://www.kele.com/relays-and-contactors/g2r-s,-ly,-mk-series.aspx

    Then your problems go away.
  39. I am sure you have a camera on you phone for...

    I am sure you have a camera on you phone for better explanation.
    Anyway, It is PROBABLE that the installer rotated the coil for LEFT HAND discharge and did not remember to rotate the drip shield...
  40. Not only the line set we need to extra freon, it...

    Not only the line set we need to extra freon, it is the indoor coil we must consider also. Read the manufacture recommendation.
  41. no

    no
  42. Simple: If those data are correct, then both...

    Simple: If those data are correct, then both systems are overcharged with freon. Please call them back to correct the system and reimburse the money they overcharged you when they did that. Weight...
  43. Option #1: Blank off ONE SIDE 6" inside or 2 side...

    Option #1: Blank off ONE SIDE 6" inside or 2 side of 3" each. This will leave you 24 x 30 and you can use this filter ...
  44. Coleman, luxair, York: aluminum condenser coil=...

    Coleman, luxair, York: aluminum condenser coil= 100% leaks
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    Inverted loop is intend for oil return,...

    Inverted loop is intend for oil return, regardless if the inside unit is horizontal or vertical.

    The main purpose is "once the oil has gotten out of the coil, we don't want it to drip back into...
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    First, I don't know how close you live near...

    First, I don't know how close you live near shoreline. If salt water is a factor then those high efficiency and 10 years warranty are kinda iffy.

    Second, you live in CT, where the cooling season...
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    You ground the shield wire at ONE and ONLY ONE...

    You ground the shield wire at ONE and ONLY ONE END. Make sure other exposed shield it tape up neatly and not to have it touch any ground. Some controller gives you a third terminal to connect your...
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    1) You need to have a dehumidifier installed to...

    1) You need to have a dehumidifier installed to treat the fresh that you bring in to help your daughter from allergies. If you don't, you will not be very comfortable since your humidity level will...
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    Would it be easier and better for your if ...

    Would it be easier and better for your if you ask them while they are in your house.
  50. We have to remember that "the systems is sized...

    We have to remember that "the systems is sized for the whole house at the 95 degrees temp outside + the humidity at that level" ,i.e. The unit is sized for the PEAK LOAD of the day.

    But, we know...
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