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Vaporstat AND pressuretrol

Paul H.
Paul H. Member Posts: 8
in THE MAIN WALL
My steam boiler has both a vaporstat and a pressuretrol coming off the same tee.My question is which is controling the boiler?The values for the main and differential are the same on the vaporstat....am I right that this would disable the vaporstat and I would be running on the pressuretrol?Would simply setting the values on the vaporstat overide the pressurtrol?

Paul H.

Comments

  • Fred Harwood
    Fred Harwood Member Posts: 261
    Vaporstat

    Without seeing the wiring, I can only guess, but probably the Pressuretrol is used as a high limit in series with the Vaprostat, which does the cycling on a call for heat.
    Depending upon your system and the Vaporstat model, you may be able to go as low as 8 ounces on your Vaporstat high setting.
  • Paul H.
    Paul H. Member Posts: 8
    Vaporstats



    It's a Honeywell,with 16 oz.the max setting on both the main and diff. side.
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