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bought a manometer,now what??

Big Ed
Big Ed Member Posts: 1,117
Moden Air Conditioning and Refrigeration should be on your book shelf.....

Comments

  • jesse the great
    jesse the great Member Posts: 72
    I need assistance

    I bought this nice digital manometer thinking its a good tool to have ( I think your suposed to use it to get the flame just right) Now my ? is Since no one @ my supply house knows how to use one , I know there are tappings on the gas valve, one before the valve & one after the valve .
    when you use this manometer it measures in WG water gauge, is that the same as water column? also when you get the right amount of pressure on the manofold does that help reduce CO? I have almost no knowlage of the silent killer.
    oue another thing is there a adjustment on the on the gas valve to lower the amount of water column or do you use the gas cock? Im asking all these things because there is no one that I know of in my area to answer these simple questions everyone thinks i read too much and ask too many questions, I hope you guys will give me the answers
  • jim lockard
    jim lockard Member Posts: 1,059
    Mag gauge

    Congrats--a manometer is used to measure pressure (mostly low in inches of water) both positve/negtive and differential. You can measure gas pressure at the valve taps, you can use it to measure air pressure in fans such as checking inducer draft fans in furnaces, With a little math and a chart you can measure CFM's of air moving equipment, you can measure the draft across the fire in heating equipment. A manometer is used to set up VAV controls in large buildings, you can check for negtive pressure in the smoking lounge. Did you manometer come with a book?
    As for CO you need to listen and learn from the folks here. A manometer is not a CO meter. Best Wishes J.Lockard
  • jeff_51
    jeff_51 Member Posts: 545
    most any good book

    on heating and ac controls will give very good explanations on all of the previous post
  • Big Ed
    Big Ed Member Posts: 1,117
    mano

    Pressure adjustment before the burner is adjusted by the gas company.

    Manifold or burner pressure is adjusted from the main gas valve.There are two adjustment screws on the main gas valve , for pilot and burner somewhere

    The proper pressures are list on the unit.

    Any adjustments done on the
    burner you need to check the combustion using instruments.

    Sorry no cheap way out .

    Tim McEwin. is the one you need go get in touch with when it come to gas.He will be around soon or I will look for his address later for you.He is a teacher and writer of books on gas..
  • jesse the great
    jesse the great Member Posts: 72
    jim

    thanks for the reply the manometer did come with a book it just comes w/ convertion charts and tells you to 0 the meter before you start
  • Boiler Guy
    Boiler Guy Member Posts: 585
    Aquiring the tools

    is the first (easy) step. Aquiring the knowledge on their propper use and care, is is the next (logical) step. Most instruments come with decent, understandable instructions. Learning how to use the tools effectively comes from practice, practice, practice. Most equipment manufacturers provide detailed instructions on how to set up their products. Practice on your appliances at home first, if you can, to become familiar with your new "toys". Congratulations, you have entered the "learning curve". One word of advice though: DO NOT become totally reliant on an electronic device. Purchase an inexpensive water gage from a supply house to verify the accurate operation of your electronic instrument regularly.
  • Mark Hunt
    Mark Hunt Member Posts: 4,908
    Jesse

    I would recommend that you take a class on how to use the manometer before you start trying to make adjustments to equipment in the field.

    While the manometer can show you things like gas pressures and draft, knowing what to do with that information and how it affects combustion is vitally important.

    Check out Jim Davis' class.NCI

    See if he is going to be near you soon here Schedules

    Tim McElwain offers courses on this as well and he may be closer to you.

    Yes, a monometer is a tool we use when testing and adjusting burners for CO and checking draft, but it is only one tool. A combustion analyzer is an absolute must when setting up gas or oil fired equipment.

    I took Jim Davis’ class years ago and it changed me. More than worth every dime I spent on it.

    Mark H

    To Learn More About This Professional, Click Here to Visit Their Ad in "Find A Professional"
  • Empire_2
    Empire_2 Member Posts: 2,340
    Manometer

    By chance did you purchase a UEI differential Monometer? Mod# EM200
  • jesse the great
    jesse the great Member Posts: 72
    Mike

    I got the mod 150. do you have this type of manometer?and do you know if the WG reading stands for water column
  • jesse the great
    jesse the great Member Posts: 72
    Mark

    Thanks for the Information it was just what I was asking about, and the clases are not in my area sadly, do you happen to have Tim's class info that you could post I could try and see if he's like in new england. Thanks again Jesse
  • Mark Hunt
    Mark Hunt Member Posts: 4,908
    Tim is in New England


    but I do not have his class schedule.

    You can contact him directly at gastc@cox.net

    Good luck!!

    Mark H

    To Learn More About This Professional, Click Here to Visit Their Ad in "Find A Professional"
  • jeff_51
    jeff_51 Member Posts: 545
    gotta agree with boiler guy

    I use about a 15 dollar water tube. Notheing to ever go wrong, unless it cracks, and if you can read, very accurate
  • Jesse, some information

    and material is on the way to you via U.S. Mail. Let me know if I can be of any further help.
This discussion has been closed.