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What am I doing wrong

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maybemark
maybemark Member Posts: 1,131
in THE MAIN WALL
As several of you know, I installed a lochinvar whn 085 and a lochinvar squire 40
Why does my 085 never modulate ( or i never seen it do it.) It go from 0, when satisfied to 100% then gets blocked when it meets in set point or when it meets it's temp. turns off
My 40 squire does modulate. I've seen it start off with 100%, but when it gets closer to the temp. the % goes down, unil it meets the temp that i gave it
thanks
Mark
«134567…18

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  • Gordy
    Gordy Member Posts: 9,546
    edited November 2015
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    Post your programming parameters.

    Is ODR hooked up? Is the reset curve programmed correctly? Boiler sensors installed?

    Refresh our memories is it piped direct to the system, or P/S?
    347
  • ced48
    ced48 Member Posts: 469
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    So the boiler must be firing on and off all the time there is a call for heat?
  • maybemark
    maybemark Member Posts: 1,131
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    Gordy
    I know how to get into the service mode, but what peramiters are you looking for?
    thank for answering my quote, but I do not know what is ord,
    yes it has boiler sensor. it is piped directly to the system, and the 110 volt is wired to the boiler

    ced
    Yes, when called for heat, it goes to 100%, when it reaches it's temp. , it turns off
  • smithfan
    smithfan Member Posts: 91
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    ord or ODR is the outdoor reset that tells the boiler what it's doing outside. Unless this is hooked up I don't think it will modulate at all.
  • maybemark
    maybemark Member Posts: 1,131
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    I do have a sensor outside
  • Gordy
    Gordy Member Posts: 9,546
    edited November 2015
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    Is the supply sensor installed for the boiler.....on the supply side.

    ODR = outdoor reset. Is that sensor installed, and of so is the curve set properly?

    Are your rads meeting the set point in your rooms?
  • maybemark
    maybemark Member Posts: 1,131
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    yes, the supply sensor is installed, it is in my piping, the censor
    yes, the outdoor censor is installed. I'm not sure what you mean by curve set. so, if i don't know, this might be the problem, unless the curve set is the ramp, which is turned off, by default.
    My house is very comfortable, I changed the location of the thermostat, and I just turned the valve down a little in that room, because my living room and kitchen are not as war as the rest of the house
  • Gordy
    Gordy Member Posts: 9,546
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    Is the supply sensor selected as the controlling sensor?
  • maybemark
    maybemark Member Posts: 1,131
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    I'll go look,
  • maybemark
    maybemark Member Posts: 1,131
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    the system sensor is hooked up to the control sensor
  • maybemark
    maybemark Member Posts: 1,131
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    or did you mean the programming?
    what should it be?
  • maybemark
    maybemark Member Posts: 1,131
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    I have the control system set to the out
  • Gordy
    Gordy Member Posts: 9,546
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    Correct that is default setting didn't know if it maybe got changed.
  • maybemark
    maybemark Member Posts: 1,131
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    I used most all default. I did change some numbers or temp. for chicago winters
  • Gordy
    Gordy Member Posts: 9,546
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    So,what has been the SWT at?
  • maybemark
    maybemark Member Posts: 1,131
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    Gordy, I don't know all the abbreviation, I'm sorry what is swt?
  • maybemark
    maybemark Member Posts: 1,131
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    and where will i look for it on the menu ?
  • Gordy
    Gordy Member Posts: 9,546
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    Supply water temperature.

    What are your settings for Boost.
    Ramping.
  • maybemark
    maybemark Member Posts: 1,131
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    I'll go look
    I think ramping default is inactive
  • Gordy
    Gordy Member Posts: 9,546
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    Maybe this would be easier. Did you program anything? Is everything factory default?
  • ced48
    ced48 Member Posts: 469
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    ODR must not be selected, or modulation would have to come into play.
  • maybemark
    maybemark Member Posts: 1,131
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    most everything is default, but not everything
  • maybemark
    maybemark Member Posts: 1,131
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    I see the temp outside on the boiler
    I will go look at the low and hi outdoor temps
  • ced48
    ced48 Member Posts: 469
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    How high is your water temperature when the boiler stops firing ?
  • Gordy
    Gordy Member Posts: 9,546
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    What did you change?
  • Gordy
    Gordy Member Posts: 9,546
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    Thank you

    I believe if it's hooked up correctly it is recognized.
  • maybemark
    maybemark Member Posts: 1,131
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    I wonder if this is it
    I have low out outdoor set -5 default is180 and I have high outside at 64, default is70
  • maybemark
    maybemark Member Posts: 1,131
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    I don't remember how high the temp is when it shuts off
  • maybemark
    maybemark Member Posts: 1,131
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    should I change the low and high temp outside to defaults?
  • maybemark
    maybemark Member Posts: 1,131
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    I have a feeling my low outside temp is wrong, not even in the perimeters
  • Gordy
    Gordy Member Posts: 9,546
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    You have the ability to do three ODR zones are you using , and programming zone 1? Do you have more than 1 zone?
  • maybemark
    maybemark Member Posts: 1,131
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    the outdoor temps are set at -5 and 65, the set points are default
  • maybemark
    maybemark Member Posts: 1,131
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    I only have 1 zone, and then DHW. I am using zone 1 for my heat
  • maybemark
    maybemark Member Posts: 1,131
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    I was just downstairs, and the stat called for heat, it went right up to 100% flame
  • Gordy
    Gordy Member Posts: 9,546
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    Let us know what the supply water temp is when boiler shuts down.
  • ced48
    ced48 Member Posts: 469
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    But what are the water temps set at for those outside numbers?
  • maybemark
    maybemark Member Posts: 1,131
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    when i got there, the boiler was off, the system temp is 81, when i got downstairs
  • maybemark
    maybemark Member Posts: 1,131
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    out door
    low -5 and high 64
    wyo
  • Gordy
    Gordy Member Posts: 9,546
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    There are 4 sets of parameters to program.
    Outdoor low, and high.
    Outdoor set point low, and high.
    Outdoor air shut down.
    Outdoor air differential.

    Read the service manual to get a better understanding of how these work in conjunction with the outdoor reset feature.

    I have a feeling your only setting parts of each set of the parameters.

  • maybemark
    maybemark Member Posts: 1,131
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    Gordy, I did read the manual, but I will go downstairs and see what numbers I put in

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