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pressurtrol settings incorrect?

S. Meredith
S. Meredith Member Posts: 5
in THE MAIN WALL
After reading the Got Steam Heat book for Homeowners, I did a little exploring around the system. I have one pipe steam with a coal converted boiler (the house is c. 1850). The pressurtrol cut-in is set to 2, and the diff is set to 1. What does this do to my system? The book says .5 for cut-in. The heating is fair, needs a little cleaning, may

Comments

  • Steamhead
    Steamhead Member Posts: 17,387
    It should be set as low as it will go

    Those systems were designed to heat the house on the coldest day of the year with no more than 2 pounds pressure. Anything more wastes fuel.

    If the system is only "fair" in the way it heats, you would do well to have a good steam man look it over. Often it can be made to run better for much less than you'd spend on a new boiler. Try the Find a Professional page of this site to locate one near you.

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  • S. Meredith
    S. Meredith Member Posts: 5


    Would the current setting cause any serious damage or noticeably annoying problems? Will I notice a change in my system when I change the cut-in to .5? Just curious.
  • Dave_26
    Dave_26 Member Posts: 1
    honeywell PA404 pressuretrol

    I a singlepipe steam system with a gas fired boiler. The boiler is a weil macclain and is 19 years old. This system has two pressuretrols mounted on it. One has cutin set to .5 with the differential switch set to 1 The other has cut in set to 2 and differential set to 1 . I have never seen this type of setup. I was thinking that the two controls should be set to the same settings? any ideas?
  • Unknown
    Unknown
    Dave is it a Powerpile system?

    If it is then the second pressuretrol is designed to shut the pilot system off in the event of a run away boiler. That auxillary pressuretrol should be set for 14 lbs off 9 lbs on. Set the cut in to 9 and differential to 5. Make sure it is the one wired into the pilot generator circuit not the thermostat circuit.
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