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How to wire Vaporstat with Pressuretrol

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ranzerox
ranzerox Member Posts: 52
in Strictly Steam
Looking to wire a Vaporstat with Presuretrol please. I found some articles on this but I'm still not clear, looking for advice and wiring diagram please. thanks!

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  • mattmia2
    mattmia2 Member Posts: 9,672
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    Wire them in series and connect to different tappings so if the vaporstat clogs the pressuretrol still eventually shuts down the boiler. The pressuretrol should be manual reset so someone will notice the vsaporstat isn't working(and is required in some installations)
    ranzerox
  • 109A_5
    109A_5 Member Posts: 1,385
    edited November 2022
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    Hello @ranzerox,

    Series circuit, so if the switch of either device opens the burner is shut off. The switch of either device should open when the device's set pressure is exceeded. Switches are shown in the open position in picture.



    National - U.S. Gas Boiler 45+ Years Old
    Steam 300 SQ. FT. - EDR 347
    One Pipe System
    ranzerox

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