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steam (short cycles)

Dan_43
Dan_43 Member Posts: 57
in THE MAIN WALL
I am in the basement doing paperwork and I hear my new Burnham IN7 boiler cycling off and on very often. The controller is set at about 1.5 lbs and the dif. is at about .75 lbs.
I just watched the cycle, the boiler shut off at about a half a pound. Do you think it's the Honeywell programmable thermostat up stairs that making the boiler turn on at a fraction of a degree drop and shut off at another fractional rise? the thermostat is on an interior wall.
Dan

Comments

  • ttekushan_3
    ttekushan_3 Member Posts: 961
    thermostat

    did you configure the thermostat for steam? If a new thermostat is used "out of the box" then its still set up for forced air (the default factory setting) and will short cycle the boiler wasting energy.

    -Terry

    Terry T

    steam; proportioned minitube; trapless; jet pump return; vac vent. New Yorker CGS30C

  • Dan_43
    Dan_43 Member Posts: 57


    It is 3 years old but I know I never did anything to it. How do I do make the ajustment?
    Dan
  • Unknown
    Unknown
    short cycle

    Hi Dan, many times a steam boiler short cycles because of a clogged pigtail, which is the curved pipe that your pressuretrol is attached to.

    Regards, Monty.
  • Dan_43
    Dan_43 Member Posts: 57


    This is a new installation, do you think it could clog that quickly? Also I have (2) pressure gages on the boiler and they are only on about 1/2 lbs when the boiler shuts off?
    what do you think about the thermostat theory?
    Dan
  • sendi
    sendi Member Posts: 1
    burnham

    Hi,
    I have baseboard water heat. Heater uses gas and its model is burnham PXG-200AA-WNI, 82000 BTU gas water heater. I just replaces water in the entire system one month ago, now since last 15 days I see water vapour comming out of the heater setup. Is this a problem? How should I fix this? I just paid 250 so get the water out a month ago so do I have to call technician ?
    Please help !
  • David Nadle
    David Nadle Member Posts: 624
    Download installer instructions from Honeywell

    Find the page at Honeywell for your tstat and download the installer instructions. If you have a VisionPro 8000, you would enter installer setup by pressing system, then holding down buttons 3 and 5 of the 7 along the bottom row, until the display changes to a 4 digit function code and a 2 digit setting code. Use the up arrow to change the function code to 0240 (first stage heat cycle rate) and make sure the setting code is 01, for 1 cycle per hour.

    I recommend you find the setup instructions for your model online and go through the settings one by one to make sure they all make sense.

  • Dan_43
    Dan_43 Member Posts: 57


    thanks I will contact Honeywell tomorrow for the information If I have to buy a new one for the options than so be it.
    Dan
  • Terry Young
    Terry Young Member Posts: 5


    Dan, Did changing the settings help with the frequent cycling of your boiler?
This discussion has been closed.

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