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  1. "Is there a system available (even a custom) that...

    "Is there a system available (even a custom) that will draw in the outside air if the outside temperature (at night) is low enough. This would save us an incredible amount of money?"

    I think you...
  2. in a word.... NO, but with a explanation. ...

    in a word.... NO, but with a explanation.

    First off the neighbor did not see any decrease in energy used over the last year.

    The windows that were installed were indeed dual pane low e, vinyl...
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    that explains it!!! thank you!!!

    that explains it!!! thank you!!!
  4. Replies
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    827

    if your living in scottsdale, you can afford high...

    if your living in scottsdale, you can afford high energy bills!!! (that was a "phoenix suburb" joke folks!!)

    I do see that rheem makes a 17 seer package unit. But to tell you the truth, its all...
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    1,891

    what is the difference between the SMAN3 and the...

    what is the difference between the SMAN3 and the SMAN2??? I read the manual online and I dont see a difference???
  6. I have not had the aeroseal done at my house, but...

    I have not had the aeroseal done at my house, but my neighbor did. We both have the very same house, built a the same time. I suspect that like everything else in the hvac industry, the installer is...
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    622

    yellow pages, google etc. find a sheet metal shop...

    yellow pages, google etc. find a sheet metal shop local to you. explain what your doing and have them make it up. I had a similar problem and had the local sheet metal shop bend up an extension...
  8. Dont know what to tell you. Static pressure went...

    Dont know what to tell you. Static pressure went down, CFM delivered via the supply ducts when up. This along with a raft of other changes lowered my bills by 25 percent. It may not be for everyone,...
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    I would suggest the you take a look at the...

    I would suggest the you take a look at the manufactures site and find someone listed there in your area to come and take a look.

    if the pro's say its installed wrong, I would contact the...
  10. "Something else to remember is that by going...

    "Something else to remember is that by going downshot, the static pressure will run higher on some units. At least with an elbow, the air can come straight out the back of the unit and make a gradual...
  11. Replies
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    3,577

    well, to tell the truth, there are really only...

    well, to tell the truth, there are really only four features that I use...

    1. the programing/setback
    2. the ability to change the temp set point from a computer or ipod, due to the fact my...
  12. Replies
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    3,577

    The files is a csv comma delimited file that will...

    The files is a csv comma delimited file that will log as long as you want it to.

    Here are the headers for the data collected.

    Entry Time
    Unit name
    UUID
    Log Version
    Latitude (from zip...
  13. Replies
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    3,577

    google setyourthermostatforwindows and it should...

    google setyourthermostatforwindows and it should show up.

    here is the direct url
    http://www.setyourthermostat.com/
  14. Replies
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    3,577

    I fully understand that there are some really...

    I fully understand that there are some really great thermostats on the market. I have no doubt that there are some that are much better. The OP asked if there anybody had experiance with the 3m...
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    3,577

    myself and 4 others (friends and family) have...

    myself and 4 others (friends and family) have this thermostat.The OEM software is junk, but there is another company making aftermarket software. The after market software is spectacular.

    Not...
  16. Replies
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    2,548

    what design temp to use.

    When a company does a manual j (heat load) what do they use for design temps. For instance, Phoenix AZ, normal summer has highs of 115 to 118, but I have seen 122. Most folks here keep the tstat at...
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    2,574

    hhhmmmm,,, old system worked fine for 2 years....

    hhhmmmm,,, old system worked fine for 2 years. New system does not. BAD INSTALL??????? I would suggest that you have someone (another contractor or the registrar of contractors) check it out. I would...
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    1,574

    All right, I hope this makes everyone laugh like...

    All right, I hope this makes everyone laugh like it does me.

    Many many years ago, I had a house with an evap cooler only. The cooler was old old old and on its last legs. As a young man, I spent...
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    2,286

    If I understand delta T correctly, its is also...

    If I understand delta T correctly, its is also governed by air flow over the coil / static pressure. Is this correct??? example 200 cfm will have a much higher delta t then say 1000 cfm flowing over...
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    I have my grandfathers turbo torch that he used...

    I have my grandfathers turbo torch that he used in the 1970's. I seldom use it. Of course I dont do ac installs!!! I also have oxy act for big copper plumbing repairs or brazing steel or fabrication....
  21. my non professional answers... 1. I would say...

    my non professional answers...
    1. I would say that the amount of dirt and the type of dirt, after 40 days is not typical. I would look at the ducts from the return register to the filter for...
  22. Thread: Energy Audit

    by rbelisle1
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    745

    I am not an expert!! let me say that first!! ...

    I am not an expert!! let me say that first!!

    As with any measurement, there are lots of variables. First is the ability of the person conducting the testing. Second is the calibration of the...
  23. Thread: Energy Audit

    by rbelisle1
    Replies
    9
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    745

    I have had a couple of neighbors that have paid...

    I have had a couple of neighbors that have paid to have this done. The cost was subsidized by the local utility company. All three had "serious" issues found. All three of the companies offered to...
  24. Replies
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    I was taught (35 years ago) that you put a...

    I was taught (35 years ago) that you put a minimum of 3 screws up to 12 inch ducts. And 5 screws in ducts 14 inches and above.... that was a rule of thumb back then....
    I know I would not want my...
  25. Replies
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    1,363

    as a homeowner, 1. be curtious. 2. be...

    as a homeowner,

    1. be curtious.
    2. be professional
    3. have a clean well orgainized truck, tool bag and apperance (I know that its hard to do).
    4. try to explain every problem. I dont work...
  26. Replies
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    8,013

    Let me break this down and try to answer these...

    Let me break this down and try to answer these questions from my Homeowners perspective. I would like to point out that it is “very cool” in my book that you would take the time to ask the...
  27. Replies
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    8,013

    Good call on the question of combustibles back...

    Good call on the question of combustibles back drafting!!!!! The house has no natural gas and is all electric, so that is not a worry. we do have two fireplaces, but they do not get used much. It is...
  28. Replies
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    8,013

    The unit is a 5 ton rudd rjnla060. R22 package...

    The unit is a 5 ton rudd rjnla060. R22 package unit with an x-13 indoor blower motor. The duct work worked out to be sized for 4 tons. I had the unit replaced 4 years ago and went with a same size...
  29. Replies
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    8,013

    my concern after all the changes was that the...

    my concern after all the changes was that the original installers may have "adjusted" the charge due to the high static pressure etc... I didnt see them do it, but I was worried... I sure as heck...
  30. Replies
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    8,013

    yes two 18 inch return ducts. round steel into a...

    yes two 18 inch return ducts. round steel into a y, then into an adaptor for the underside of the package unit. The supply is 2 steel 16 inch ducts, one feeds the upper floor and one feeds the lower...
  31. Replies
    109
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    8,013

    18 inch round steel duct. Two elbows, a Y and...

    18 inch round steel duct.

    Two elbows, a Y and an adaptor for the 19 by 12 inch bottom of the package unit. all steel. Total run for each of the returns is about 10 feet.
  32. Replies
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    8,013

    I, as a middle class working stiff, would welcome...

    I, as a middle class working stiff, would welcome that type of service. Its educational also, which I, again, would welcome and would be willing to pay for.
  33. Replies
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    8,013

    18 inch steel for the dual 20 by 30 grills.

    18 inch steel for the dual 20 by 30 grills.
  34. Replies
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    Well, I was up there today (not ac related) and...

    Well, I was up there today (not ac related) and with 1900 sq inches of soffit, gable, ridge vent and a tile roof, it was only a couple of degrees hotter than ambient today... Plus, I have a package...
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    Sad to say but typical for az... I have had 5...

    Sad to say but typical for az... I have had 5 techs out... 5 strikeouts when asked to do a subcool or superheat and no way to measure the static pressure of the system. The only two things that I...
  36. Coolerado ....do a google search.. .the site...

    Coolerado ....do a google search.. .the site shows them running it on solar...
  37. Replies
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    1,363

    Have the condensate drain checked for proper...

    Have the condensate drain checked for proper installation or blockages... You can not believe how many that I see, as a layman just driving around, that are installed wrong. How do I know they are...
  38. Replies
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    2,489

    Jump ducts???? get your AC guy out and have him...

    Jump ducts????
    get your AC guy out and have him check it out. These guys can better tell you what to look at,, but I sure would want to know the static pressures and the cfm (checked with a vent...
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    well being a total geek, I have my magnehelic...

    well being a total geek, I have my magnehelic gauge setup on perm install. I also have intalled 3 way valves on each of the gauge sides. with the positive side open to the HVAC system and the...
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    amen... but you need to add one more thing,,,...

    amen... but you need to add one more thing,,, help for "them" within the guidelines of this site.
  41. Replies
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    1,734

    ooooooppppss that should have been a manual d...

    ooooooppppss that should have been a manual d (for the duct sizing),, not a manual J.... sorry... LOL
  42. Replies
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    if it was my system, I would have the ducts...

    if it was my system, I would have the ducts checked, by a professional, via a manual J calculation. I would also want to know what the total external static pressure is at low speed. With these two...
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    881

    x-13 motors are programed by the mfgr for the...

    x-13 motors are programed by the mfgr for the specific OEM maker of the system. Thus, there are many different ways the motors are programmed, thus the many model numbers. Also, I dont belive that...
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    3,748

    Almost totally off topic here... but its a safety...

    Almost totally off topic here... but its a safety issue...

    if the builder did not know this "shop" was really a garage, he or she may not have installed the correct type and thickness of drywall....
  45. Replies
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    5,416

    you couldnt pay me to keep flex.. the static...

    you couldnt pay me to keep flex.. the static pressure, at least with out system, droped from 1.25 to .55 when we got rid of the flex...

    we also got a new plenum in the deal. so that may have...
  46. Replies
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    5,416

    Its not my attic that has issues. I tore that...

    Its not my attic that has issues. I tore that flex duct out last year and replaced it with sheetmetal!!!! I also added a ridge vent, eve vents and gable vents. I am well over the minimum code (by (by...
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    details... the neighbors (3 of them) have now...

    details...

    the neighbors (3 of them) have now found leaks in the attic flex duct. 16 inch main trunk lines. If they were anything like mine, they were installed loose. Mine had a 19 foot run and...
  48. Replies
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    What is the life span of flex duct?

    Some of the neighbors are having problems with their flex duct breaking down. What is the life span of flex duct in a very hot attic in the desert southwest....
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    My grandfather taught me that the ac system is...

    My grandfather taught me that the ac system is not an air cleaner. You put in a filter the AC system to keep the equipment clean. He always said if you want a cleaner house, dust more often.

    I...
  50. Replies
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    "We have a commisioning report we do on every...

    "We have a commisioning report we do on every system"

    ok, well lets start with the commisioning report. I would love to see that list. From there a HO check list could be started. Please post the...
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