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vaporstat wired in series with pressuretrol

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josephc
josephc Member Posts: 39
in Strictly Steam
Does anyone have a diagram showing how to wire these two instruments in series? Also my pressuretrol doesnt have an R or B label on either terminal.

What i have done is wire #1 from boiler to term R on vaporstat and then connected a wire from there to the pressuretrol on one of its terminals. Then the other wire #2 from boiler to the B terminal on vaporstat. Then a wire from there to the other terminal on the pressuretrol. Is this considered in series since going through both switches?
Thank you
Joe

Comments

  • Jamie Hall
    Jamie Hall Member Posts: 27,291
    No. You've wired them in parallel. Boiler, terminal R on vapourstat. Terminal B on vapourstat to one of the pressuretrols. Other terminal on pressuretrol back to #2 on boiler -- assuming you have no other safeties. If there are other safeties, then go to them before you go back to the boiler.
    Br. Jamie, osb
    Building superintendent/caretaker, 7200 sq. ft. historic house museum with dependencies in New England
    josephc
  • josephc
    josephc Member Posts: 39
    Thank you; Ive corrected it. Since there isnt an R or B on the pressuretrol terminals is it correct to assume it doesnt mater which one is wired to the vaporstat and which continues on to the boiler.
  • Jamie Hall
    Jamie Hall Member Posts: 27,291
    josephc said:

    Thank you; Ive corrected it. Since there isnt an R or B on the pressuretrol terminals is it correct to assume it doesnt mater which one is wired to the vaporstat and which continues on to the boiler.

    Correct. It's just a simple switch.
    Br. Jamie, osb
    Building superintendent/caretaker, 7200 sq. ft. historic house museum with dependencies in New England
  • EBEBRATT-Ed
    EBEBRATT-Ed Member Posts: 20,119
    @Jamie Hall is correct assuming the pressure control is a "break on rise" pressure control with only two terminals which is the most likely senario
    josephc

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