Welcome! Here are the website rules, as well as some tips for using this forum.
Need to contact us? Visit https://heatinghelp.com/contact-us/.
Click here to Find a Contractor in your area.

Low pressure

Art62
Art62 Posts: 4
in Strictly Steam
Is it possible for the pressure in the boiler to be to low ? When our boiler was installed, we had water hammer and spitting vents so the guy who serviced it down fired the boiler  and now it doesn`t go over 1# of pressure so the pressuretrol won`t cycle. Should I leave it alone or increase the nozzle size slightly. The pressuretrol was originally set at 2# & 4#.

Comments

  • crash2009
    crash2009 Member Posts: 1,484
    I guess it's possible for our pressure to be too low

      Maybe so low that it was impossible to heat the house.  Mine runs at .07 psi., most of the time, and heats the house well.  If I shut it down for the day, for repair, then turn it back on, the first cycle pressures up over 2 psi.

    How well is yours heating the house?  What model of boiler do you have?   
  • Art62
    Art62 Posts: 4
    heats the house

    I have a burnam V84S. It heats the house alright but the only time it cycles is when it shuts down on the low water test cycle.
  • Mike Kusiak_2
    Mike Kusiak_2 Member Posts: 604
    Leave it alone

    If the house heats evenly without hammer or spitting vents, leave it alone. The best way to accomplish low pressure operation is by matching the steam capability of the boiler to the radiation. This is what you seem to have now.



    The pressuretrol is a high limit device, and should not necessarily be cycling during normal operation.
This discussion has been closed.

Categories