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  1. #1
    Join Date
    Jun 2009
    Location
    Mount Juliet, Tn
    Posts
    19

    tough Dual Fuel question?

    Just installed a dual fuel unit and I cannot get the unit to swith while running.
    On a call for heat it picks heat pump or Gas correctly.

    But,
    while the system is running and the temp goes above or below the balance point the system will not switch. I am using an 8000 tstat.

    I tested this by putting the sensor in ice or pulling it out of ice.

    I have ask around and am getting mixed opinions on this.

    what does it take to make the unit switch while running. My thinking is that while in cold weather, during heat pump mode, the system could never actually meet the set point and thus never switch to gas.

    do I need a 9000 tstat or fossis fuel kit.

    Help please.

    Thanks,

  2. #2
    Join Date
    Sep 2005
    Location
    Atlanta GA area
    Posts
    21,021
    This forum has a "no DIY" rule. Us Pro's can loose our posting privildges for helping folks. If you are a pro, get your post count up and apply for pro status. If you are not a pro, I suggest you get a pro out to solve your issues.
    GA-HVAC-Tech

    Quality work at a fair price with excellent customer service!

    Romans Ch's 5-6-7-8

    2 Chronicles 7:14

  3. #3
    Join Date
    Jun 2009
    Location
    Mount Juliet, Tn
    Posts
    19
    Hey GA Boy,
    im not a diy. Im a tech with a problem.

  4. #4
    Join Date
    Sep 2005
    Location
    Atlanta GA area
    Posts
    21,021
    You obviously have not read the rules of this forum, and I am probably old enough to be your father... son...

    Follow the forum rules... get your post count up and apply for Pro membership... One of the Mods will be along soon to remind you of the rules.
    GA-HVAC-Tech

    Quality work at a fair price with excellent customer service!

    Romans Ch's 5-6-7-8

    2 Chronicles 7:14

  5. #5
    Join Date
    Jan 2004
    Location
    Lancaster PA
    Posts
    67,879
    ga-hvac-tech is correct.

    Get your post count up, and apply for pro membership. There is a wealth of info and help in the pro forums.

    I'll throw you a hint. You probably got something set wrong that its not switching to gas furnace.
    Contractor locator map

    How-to-apply-for-Professional

    How many times must one fix something before it is fixed?

  6. #6
    Join Date
    Jun 2009
    Location
    Mount Juliet, Tn
    Posts
    19
    Someone is going to have to explain to me what this forum is all about. I read questions like this all the time from others.

    I ran this problem by 2 associates with 50 years of experiance between them and got two different answers so I thought I would throw it out on here for an explanation from someone.

    Im completely confused. You cant ask diy questions and I cant ask questions from a problem I have encounterd on an install.

    so what can I ask? confusing

  7. #7
    Join Date
    Sep 2005
    Location
    Atlanta GA area
    Posts
    21,021
    You can apply for pro status. There are dozens of forums at this site which are available to pro's; including technical, refrigeration, commercial, chillers, business and marketing, etc...

    The owners of the forum wrote the rules, we just follow them. This is a PRO forum site that allows non-pro members on a few of the forums. Get your post count up and apply for pro status.
    GA-HVAC-Tech

    Quality work at a fair price with excellent customer service!

    Romans Ch's 5-6-7-8

    2 Chronicles 7:14

  8. #8
    Join Date
    Jun 2009
    Location
    Mount Juliet, Tn
    Posts
    19
    well I just read the rules and dont see how anything I ask is a problem? The problem is not on my house, its on a unit I installed.

  9. #9
    Join Date
    Jan 2004
    Location
    Lancaster PA
    Posts
    67,879
    Once you have pro membership. You can ask technical questions in the Pro forums, that are not open to the general public.

    To give technical answers in the open forums is giving DIY instructions to DIYers that would read the thread later.

    Get your post count up to 15 and apply for pro membership.

    Your 15 post do not need to be technical in nature.

    An introduction post in the general forum will count.
    Contractor locator map

    How-to-apply-for-Professional

    How many times must one fix something before it is fixed?

  10. #10
    Join Date
    Jan 2004
    Location
    Lancaster PA
    Posts
    67,879
    Quote Originally Posted by bradley wayne View Post
    well I just read the rules and dont see how anything I ask is a problem? The problem is not on my house, its on a unit I installed.

    Doesn't matter.
    To answer it in the open forum. Leaves it as DIY advise for someone else that would have the same problem.
    Contractor locator map

    How-to-apply-for-Professional

    How many times must one fix something before it is fixed?

  11. #11
    Join Date
    May 2008
    Location
    Missouri
    Posts
    3,483
    Just as a note, if you gotta ask if you need a fossil fuel kit, you don't know enough to be charging someone else for your install of a dual fuel system. IMO anyway.

  12. #12
    Join Date
    Jun 2009
    Location
    Mount Juliet, Tn
    Posts
    19
    ok, that makes some sense to me.


    But it seems like that does not leave a lot of room to discuss much of anything in this forum. Ill get my post count up and get in there.

    Thanks,

  13. #13
    Join Date
    Sep 2005
    Location
    Atlanta GA area
    Posts
    21,021
    You probably have the wrong T-stat... go to the Honeywell site and do some reading...

    You see, we are not a bunch of mean ogers... we just have rules to follow. When you get PRO status, you will be amazed at what is available here!!!
    GA-HVAC-Tech

    Quality work at a fair price with excellent customer service!

    Romans Ch's 5-6-7-8

    2 Chronicles 7:14

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