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  1. #1
    Join Date
    Jun 2011
    Location
    Chicago,il
    Posts
    38

    combustion testing, flame failure

    have done a few combustion tests this year and two out of the ten have had intermittent flame failures my numbers are all good on my combustion test but flame failures once in a while. also in low fire the burner flame has more orange then id like to see, any thoughts. btw no flame failures prior to my testing

  2. #2
    Join Date
    Jul 2012
    Location
    Western KY
    Posts
    1,221
    What are we talking about here? MUA, boiler, direct fire, a little help here.

  3. #3
    Join Date
    Jun 2011
    Location
    Chicago,il
    Posts
    38
    fire tube boiler, power burner

  4. #4
    Join Date
    Jul 2009
    Location
    Columbia, MD
    Posts
    4,479
    gas or oil?

  5. #5
    Join Date
    Feb 2011
    Location
    Toronto Ontario
    Posts
    28
    Check the flame sensing rod signal, does it have a honeywell burner control on it? what type of boiler is it?

  6. #6
    Join Date
    Aug 2012
    Location
    willowick ,oh
    Posts
    261
    We need your #'s you left these units at to help.

  7. #7
    Join Date
    Jan 2008
    Location
    In the work truck
    Posts
    3,065
    Give us EVERYTHING you know about these units. I had a similar problem this season on a Gordon Piatt. I think I got it squared away. Post gas pressures and breech/ over fire pressures, and your combustion results in high/low fire if applicable. Also when is the failure? During PTFI or another step? WHat did you do to adjust the burner in the beginning of the season that changed that possibly caused the Lock Outs?
    Gotta have the right tool for the job!

    Where is all the stuff MADE IN THE USA?

    "Thats what we do Troy. Incredible, Invisible, Imbelivable things. We are an Unseen, Unknown, Unvincible fraternity of craftsman.."

  8. #8
    Join Date
    Aug 2002
    Location
    Westlake, Ohio
    Posts
    2,534

    flame failures

    First of all the combustion analyzer determines if the flame color is good or bad not eye sight.

    Does it fail during the day or only at night?

    Does the flue have a barometric?

    Direct spark ignition or pilot?

    What is the O2 in low-fire? and CO

    Checking the flame signal is always important especially if it is marginal.
    It should be checked with the pilot only on and then in low fire and high fire

    Back when I worked for a wholesaler that sold Fireeye and Flame Safeguard, 9 out 10 burners controls that were brought to us to be tested because of flame failures, tested to be good. That's when I decided combustion testing must be a mandatory tool.
    captain CO

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