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  1. Replies
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    The thermometers I am using are certainly not...

    The thermometers I am using are certainly not accurate to anything like 1/10 degree. They are all digital and read temps to tenths. I have done a few more experiments using all three close to each...
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    Beenthere, thank you for the reply. You confirmed...

    Beenthere, thank you for the reply. You confirmed what I figured - the average temp at the tstat would have been very weird if they incorrectly wired the sensors in series.

    I have done a bit of...
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    Actually, the thermometer is a digital one from...

    Actually, the thermometer is a digital one from Harbor Freight & Tools. Second point which you probably missed is that the very expensive thermostat (Yes it was!) does NOT measure the temperature in...
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    We have had the two 20k remote temperature...

    We have had the two 20k remote temperature sensors installed for a cooling and big part of heating season. I was a bit disturbed when the installers didn't seem to know that these two sensors needed...
  5. Don't know who "vetted" me as a professional, but...

    Don't know who "vetted" me as a professional, but I am NOT one. Beenthere has been invaluable with the choice and diagnosis of this system since 20-08-09. Probably somebody used the number of posts...
  6. That was helpful. PS: It's not the tstat.

    That was helpful.

    PS: It's not the tstat.
  7. Further developments: The system is a 2-speed...

    Further developments: The system is a 2-speed compressor York Affinity YZH04811C dual fuel HP with a natural gas, variable speed YP8C10020MP11 NG furnace/air handler and a large matching 10-year...
  8. The now gone distributor originally specified the...

    The now gone distributor originally specified the coil AND Aspen certified both using the AHRI Certification# in order to satisfy the 2009 Federal Energy Tax Credit requirements. Who is responsible...
  9. York/Aspen Coil Failure from 2009 Install - HELP!

    I spent a lot of time on this forum back in 2009 while I tried to get a duel fuel HP system that would handle our large house AND meet the Federal Energy Tax Credit requirements. Finally found a York...
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    Thank you, Beenthere. I am running on light sleep...

    Thank you, Beenthere. I am running on light sleep so I can get testy at times, especially when I go down dumb paths. :cheers: :grin2:
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    Beenthere, I think this is getting through my...

    Beenthere, I think this is getting through my HVAC thick skull. I have been proceeding along assuming that you were recommending that a very specific 20,000 ohm electrical component was needed along...
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    Beenthere, I have read some technical...

    Beenthere, I have read some technical documentation in my day but I am totally confused by the cross statements between the Honeywell YTH9421C1002/U tsat and the C7189U1005 indoor sensor. The tsat...
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    Not a very productive response, Designer Dan. I...

    Not a very productive response, Designer Dan. I suppose that you are suggesting that I replace 70'+ of Southern exposure windows or maybe installing $1,000's of film on the windows that kill the...
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    Beenthere, this is hurting my brain, but I think...

    Beenthere, this is hurting my brain, but I think that I may have an alternative solution using 2 "sensor" locations. It also stays within the 1, 4 , 9, etc. indoor sensors that Honeywell requires.
    ...
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    Beenthere, I have been trying to get my HVAC pro,...

    Beenthere, I have been trying to get my HVAC pro, a Bryant guy all the way even down to the tsat, to research this before I order the indoor sensors but he won't put in any advanced effort. This is...
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    Beenthere, I have no idea what you are saying in...

    Beenthere, I have no idea what you are saying in the statement: "There is a way to use 2 sensors. instead of getting 4 10,000 ohm sensors. You get 2 20,000 ohm sensors." I see that the total...
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    My original HVAC guy is gone and I am working...

    My original HVAC guy is gone and I am working with the Bryant dealer that installed the original system in the house. The original system was a basic Bryant NG furnace/AC, not like the top-end York...
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    Thank you for more ideas. As it turns out the...

    Thank you for more ideas. As it turns out the tsat room is 3-4 degrees above most other rooms due to the sun load. I have heard of the 3M window film. A couple of things raise concerns about that...
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    Good to hear from you again, Beenthere, and to...

    Good to hear from you again, Beenthere, and to see that you are still dispensing such useful advice. Been a few years.
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    Had the York dual fuel HP with Honeywell IAQ...

    Had the York dual fuel HP with Honeywell IAQ thermostat installed in the summer of 2009.

    Both units work well and I have never seen a thermostat that maintains the temperature setting so...
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    AOP Residential .vs. Residential????

    Please explain what this new "AOP Residential" is and how it differs from the old "Residential" that has been around forever. I am not a pro, but I have spent lots of time on this forum and...
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    Thanks, Beshvac. Obviously, I am no pro. Did know...

    Thanks, Beshvac. Obviously, I am no pro. Did know it was that complicated but I like engineering to the grill.
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    Chris, are you for real???? Don't come to my...

    Chris, are you for real???? Don't come to my place to work on my HVAC. Maybe your boss needs to be fired. We all make mistakes but who leaves an untrained person by himself on the job without giving...
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    rk05, I'm a HO that had a high end dual fuel HP...

    rk05, I'm a HO that had a high end dual fuel HP installed in 2009. I had the electric co-op do a blower door, infrared camera and Manual J. It cost me $100, but I "own" that company. I recall that...
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    Darrell, we have a national energy consultant for...

    Darrell, we have a national energy consultant for electric co-ops who is an architect and he says that you need 2 sq ft of filter for each ton, Seems like 3*12*24 = 864 sq in is enough, no?
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