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    aquastat setting (9 Posts)

  • hairball hairball @ 5:35 PM
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    aquastat setting

    I have two aquastats. One maitains the maximum temp of the water in the furance the other wont let the thermostat in the living room turn on the ciculator pump unless the water temp in the furance it at a minumum temp. what should the second aquastat be set at?

    Thank You

    This post was edited by an admin on October 22, 2013 5:39 PM.
  • N/A @ 5:42 PM

    there are no

    There are no aquastat(s) on furance.. only boiler
  • hairball hairball @ 5:49 PM
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    My bad. Boiler then
  • hairball hairball @ 5:51 PM
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    Delta t

    Belive its calle the delta t. It maintains a minumum returune temp of the water.
  • Ron Jr. Ron Jr. @ 6:15 PM
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    What model number is the aquastat ?

    And is the boiler making hot water with a coil ?
  • hairball hairball @ 6:52 PM
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    hot water

    Its and old richardson hot water boiler. No coil. Sorry all I can tell you is they are Honywell aquastats. You can see them at the top of the middle picture. They dont have the covers on them.
    This post was edited by an admin on October 22, 2013 6:59 PM.
  • Robert O'Brien Robert O'Brien @ 7:10 PM
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    A minimum of 20* less on the B aquastat,in reality with that POS you don't even need it!
  • billtwocase billtwocase @ 8:11 PM
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    Ever work on a Waterair? They had them
  • gennady gennady @ 9:54 PM
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    dual setting aquastat

    hi is a boiler limit, set at 180, lo is to prevent condensation, set at 140. lo is preventing circulator from pumping constantly cold water trough the boiler. it allows to heat portion of the water at the time.
    Gennady Tsakh

    Absolute Mechanical Co. Inc.
    This post was edited by an admin on October 22, 2013 9:54 PM.
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