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  1. #14
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    Jul 2007
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    Quote Originally Posted by username555 View Post
    @rundawg thanks for reply.
    I can only see Trane XV80. I full model number would be some longer number (like serial) but not sure where to locate it.



    https://www.dropbox.com/s/18u0i8m05yviyim/temp.jpg

    >the reason for the openings in the units housing near the burner area
    Are you referring to the bunch of the vertical lines (on one of the panels) in the above picture?

    Thanks,
    Yes, the openings allow in combustion air.

    The model number is most likely inside one of the panels on a placard. The model number would most likely start something like this - TUD or TDD.
    Instead of learning the tricks of the trade, learn the trade.

  2. #15
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    Oct 2019
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    Thread Starter
    Thanks @rundawg. I was able to locate the model number TDD2B060A9V3VAB

  3. #16
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    Quote Originally Posted by username555 View Post
    I had a visit from HVAC specialist and he said he will give me an estimate for the outside combustion air pipe that he will attach directly. Now, I'm concerned that if it is not allowed by manufacturer he will jerry-rig something. And that's not what I want.
    Quote Originally Posted by username555 View Post
    Thanks @rundawg. I was able to locate the model number TDD2B060A9V3VAB
    Thanks for the model number. It is the model I thought you had.

    I’m not sure why your contractor is saying that he can bring combustion air "DIRECTLY" into this furnace, because as I stated earlier, there is no provision in the installation manual for this.

    He might be mistaking the fact that the “National Fuel Gas Code” allows for you to bring combustion air in “NEAR” the furnace with piping that will supplement the combustion air in the space around the furnace, for any furnace that is in a “Confined Space” (a space that does not allow for adequate combustion air).
    Instead of learning the tricks of the trade, learn the trade.

  4. #17
    Join Date
    Oct 2019
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    Thread Starter
    Thank you @rundawg. I've told him about direct connection multiple times and he said they can do it (without even taking the model number).
    Also, I asked for combustion analysis while scheduling appointment - but when the technician came, he told me it is not needed and they don't carry the equipment. I did lookup the procedure on youtube and it doesn't look overly complicated (as long as you can interpret the readings). Some crews seems to be doing it as one of the items on every checkup...

    I found the folks who installed the unit in the first place and they said the same thing as you. The unit is 80%, has slits in the front panel to suck in the air, and it doesn't support conversion to direct intake of fresh air. They told me to just open one of the crawl-space inlets during winter season. That made me think (back to my original post) that this is why 2 inlets were not foamed around but just covered. Perhaps, the pest control maintenance guy was not only replacing the dehumidifier filter once/twice a year but also removing/putting back those covers (from inside).

    Thank you very much for your time. It helped me understand what I have and what I need to do. I'll use inlets to ventilate, run dehumidifier, and check periodically if have any moisture or pest problems.

  5. #18
    Join Date
    Aug 2002
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    Southold, NY
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    Quote Originally Posted by username555 View Post
    @rundawg thanks for reply.
    I can only see Trane XV80. I full model number would be some longer number (like serial) but not sure where to locate it.



    https://www.dropbox.com/s/18u0i8m05yviyim/temp.jpg

    >the reason for the openings in the units housing near the burner area
    Are you referring to the bunch of the vertical lines (on one of the panels) in the above picture?

    Thanks,
    If Rundawg says it cant be done it cant!

    See the louvers on the front......that's for the combustion air inlet!

  6. #19
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    Jul 2007
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    Virginia
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    Quote Originally Posted by username555 View Post
    Also, I asked for combustion analysis while scheduling appointment - but when the technician came, he told me it is not needed and they don't carry the equipment.
    This is the typical answer one gets when a contractor/technician is not trained on the significance of combustion testing.

    If you want to find one who knows of its importance, and has been properly trained, start here - https://www.myhomecomfort.org/why-yo...monoxide-test/
    Instead of learning the tricks of the trade, learn the trade.

  7. #20
    Join Date
    Oct 2019
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    Thread Starter
    Yep, I used that website and in my zipcode it showed one company. That is whom I called. The company has great google reviews, otherwise. Anyhow, I can try to expand to other zipcodes or call a few and ask if that is included in tune up or offered as standalone option.

  8. #21
    Join Date
    Aug 2002
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    Southold, NY
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    Quote Originally Posted by username555 View Post
    Yep, I used that website and in my zipcode it showed one company. That is whom I called. The company has great google reviews, otherwise. Anyhow, I can try to expand to other zipcodes or call a few and ask if that is included in tune up or offered as standalone option.
    I would contact N C I and inform them of what the contractor stated.

  9. #22
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    Jul 2007
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    Virginia
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    Quote Originally Posted by username555 View Post
    Yep, I used that website and in my zipcode it showed one company. That is whom I called. The company has great google reviews, otherwise.
    I know that website allows you to find contractors that are certified in areas other than combustion analysis.

    I’m hoping you talked to one of them.

    It’s still no excuse for not directing you to find a someone who is properly trained and has the tools.

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