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.

VARI VAC

Josh W
Josh W Member Posts: 7
in THE MAIN WALL
Came across a Dunham Bush Vari-Vac controller.

Need a wiring diagram for this thing if it exists.



Regards,



JBW

Comments

  • Steamhead
    Steamhead Member Posts: 17,352
    The Vari-Vac

    was the ultimate in modulating steam systems. It used several different devices- can you take a pic of what you have?



    I have some old Dunham-Bush catalog info, not sure if it has wiring info but I'll see if I can dig it up.
    All Steamed Up, Inc.
    Towson, MD, USA
    Steam, Vapor & Hot-Water Heating Specialists
    Oil & Gas Burner Service
    Consulting
  • Josh W
    Josh W Member Posts: 7
    VARI VAC

    Hey Steamhead,



    Thanks for the response. I actually was able to dig that up, as well in some catalogs we have at our shop. None of it has any wiring diagrams.



    Regards,



    JBW
  • Brad White
    Brad White Member Posts: 2,399
    I have

    two pieces of literature from Dunham Bush- The "Vari-Vac Differential Controller 389K" (I&O instructions) and the "Vari-Vac DTS-2 Programmable Timer"



    Fairly narrow choices, the first has wiring diagrams from the differential controller to the vacuum pump and control panels in various configurations.



    Let me know if you want me to scan and send them to you. (I cannot reliably post to the site for some reason, sometimes things do not "stick").



    Brad
    "If you do not know the answer, say, "I do not know the answer", and you will be correct!"



    -Ernie White, my Dad
  • Josh W
    Josh W Member Posts: 7
    VARI VAC literature

    Brad,



    You are the man. This is not the first time that you have helped me out on this site.

    josh@jwph.com - please email me the information



    Thanks,



    JBW
  • Brad White
    Brad White Member Posts: 2,399
    edited February 2011
    On their way, Josh!

    Just for giggles, I will try to post them here as well. If it works, all the better for the group.



    You do understand that Dunham-Bush sold or transferred or morphed into MEPCO out in Iowa and they own the VariVac line. Not sure of the corporate path, but MEPCO is now the source and they still support the systems including with updated electronics.



    Edit: I posted another catalog with the MEPCO brand. FYI.



    Brad
    "If you do not know the answer, say, "I do not know the answer", and you will be correct!"



    -Ernie White, my Dad
  • Mark Eatherton
    Mark Eatherton Member Posts: 5,858
    Just a thought here...

    Brad, maybe you should send a PDF copy to Dan so he can post it in the Library. Some of this information is getting rarer than a hen turkeys eye teeth:-)



    Just a thought, and thank you for your contributions.



    ME

    There was an error rendering this rich post.

  • Brad White
    Brad White Member Posts: 2,399
    And why not?

    Good call there, Mark!

    I will do so, direct to Dan.

    Cheers!



    Brad
    "If you do not know the answer, say, "I do not know the answer", and you will be correct!"



    -Ernie White, my Dad
This discussion has been closed.

Categories