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  1. Okey dokey...no offense taken. I've been...

    Okey dokey...no offense taken. I've been cleaning filters for years with no problem and I do replace them regularly...just not every 40 days. With that quick a filter load up, I would check the...
  2. Consider having your duct system cleaned, and it...

    Consider having your duct system cleaned, and it is possible to gently vacuum filters to remove some of the trapped dust and get further useful life.
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    [QUOTE=JakRabbit;10422792] Air return in the...

    Air return in the basement which is always at least 5-10 degrees lower than the main floor causes that low RAT. The only other air returns are on the main floor and these two are very close...
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    Problem solved finally! A fourth AC tech came...

    Problem solved finally! A fourth AC tech came out and he was much more knowledgeable about the XC21. He checked the pressures and charge using the Approach method and determined that the previous...
  5. I have the SLP98 and the XC21 with both the DAS...

    I have the SLP98 and the XC21 with both the DAS and the OAS installed.

    The DAS allows the system to monitor the actual temperature of the SA and keep it even during heating. So you get move...
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    As I said...

    As I said...
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    Also...check out the brokerage fees, duties and...

    Also...check out the brokerage fees, duties and taxes. I agree that price differentials can be surprising, but the US market is MUCH larger and economies of scale come into play. When I needed a...
  8. It isn't only about personal savings...it is also...

    It isn't only about personal savings...it is also about reducing the load on the energy grid, the use of resources and pollution.
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    Thanks Marty! I will ask a few questions come...

    Thanks Marty! I will ask a few questions come Monday and confirm that there was a reason the tech set the subcool where it is...also that it is 11 and not 23. I will also ask why the subcool was not...
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    Well, I may have to call to confirm, but I...

    Well, I may have to call to confirm, but I believe the subcool was 23 originally and then was set to 10-11. Is that possible when he added refrigerant to bring the charge up?

    So, if it is...
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    Anyone?

    Anyone?
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    The other question I have is to do with the...

    The other question I have is to do with the subcooling spec from Lennox:

    SUBCOOLING
    TEST AND CHARGE METHOD
    65F (18.3C) and Above
    * These subcooling values are also listed on the unit charging...
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    Okay...service tech has adjusted our AC. First...

    Okay...service tech has adjusted our AC. First we needed to clean the MERV 16 filter as airflow was restricted. He then confirmed that the system was a bit undercharged and added refrigerant.
    ...
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    Okay...after 2 service calls I have more...

    Okay...after 2 service calls I have more information on the problem (411: low pressure switch strikes lockout).

    It turns out that none of the techs here have worked on the XC21 before. Any help...
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    Thanks very much Marty...I will try disabling the...

    Thanks very much Marty...I will try disabling the stage delay timers so the XC21 runs in first stage without extra dehumidifcation. A very helpful suggestion...particularly when the cooling load is...
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    Thanks TB...I will look into it once I determine...

    Thanks TB...I will look into it once I determine if the DEHUMID function of the XC21 cuts the mustard.
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    The following is in my iComfort manual (12/2010)...

    The following is in my iComfort manual (12/2010)

    "DEHUMIDIFICATION modes
    NOTE − Basic and Precision dehumidification modes are functions of the
    HVAC system with NO external dehumidification...
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    Thanks

    Thanks
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    So, the system will override the cooling demand...

    So, the system will override the cooling demand CFM if a dehumidification demand exists at the same time?
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    Thanks!

    Thanks!
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    Okay...that's helpful: max the dehumidification...

    Okay...that's helpful: max the dehumidification rather than the cooling, which would mean drop the airflow from the max cooling airflow. So, perhaps the iComfort does this automatically.

    What is...
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    Lennox iComfort AC settings

    I have the Lennox XC21 (3T) with the SLP98 and the iComfort thermostat installed. Now apart from the fact that the installer has to come and service the brand new XC21 due to a botched install (low...
  23. HeyBob: I'm confused...I also posted a copy of a...

    HeyBob: I'm confused...I also posted a copy of a PDF quick start guide. Was the problem the presence of an internet address within the PDF document?

    My apologies and thanks for any clarification,...
  24. I have the icomfort Touch and also am very happy...

    I have the icomfort Touch and also am very happy with it. The only reference I have found to the internet weather features:. The icomfort (not the touch model) has a quick start guide (attached)...
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    Hey...everyone knows that cheaper is the way to...

    Hey...everyone knows that cheaper is the way to go: buy a poorly butchered cut of stewing beef for your barbeque dinner and then enjoy tough, inedible meat filled with bone chips.
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