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.
If our community has helped you, please consider making a contribution to support this website. Thanks!

Richardson System

Options
4GenPlumber
4GenPlumber Member Posts: 16
in Strictly Steam

Does anyone know how to figure pressure settings on a Richardson system?

Comments

  • mattmia2
    mattmia2 Member Posts: 15,980
    edited January 23

    as low as possible. size the boiler so it doesn't build pressure and set it up with a vaporstat set at about 6oz/in^2 cutout

  • 4GenPlumber
    4GenPlumber Member Posts: 16

    I have it hitting all rads with only 1 oz, but since it can run on a vacuum, i have differential at 3 Oz (subtractive). Can't find any info on how it would have been set up at design.

  • mattmia2
    mattmia2 Member Posts: 15,980

    it would have been coal originally so it would have probably used a "return trap" to equalize the mains and returns and possibly had a weight and chain pressure control that could try to damp the fire to control the pressure. making the boiler a little smaller than the connected edr is by far the best way to control it, make the boiler not be able to make more steam than the system can consume.

Categories