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VS-3000 and 007e?

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CC.Rob
CC.Rob Member Posts: 130
Wondering if a 007e ECM is a viable replacement for the original 007 internal circulator in a Burnham Revolution, which uses a VS-3000 to control the internal circulator speed. Thanks.

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  • hot_rod
    hot_rod Member Posts: 22,129
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    I think that Revolution used a tekmar card to vary the speed, I don’t think any electronic circ could be used with that control?
    Bob "hot rod" Rohr
    trainer for Caleffi NA
    Living the hydronic dream
    kcopp
  • kcopp
    kcopp Member Posts: 4,432
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    Similar to the Taco variable injection control.. Taco does not recommend an ECM pump to use in the bridge circulator position. You need the regular psc 007.
    Dave H_2
  • SteveSan
    SteveSan Member Posts: 234
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    kcopp said:

    Similar to the Taco variable injection control.. Taco does not recommend an ECM pump to use in the bridge circulator position. You need the regular psc 007.

    You are correct @kcopp From our PM:

    ECM circulators cannot be used with our PC controls. The PC controls modulates or chops the voltage signal to circulator, which is intended to limit the voltage thereby slowing the speed of the motor. That works fine with our standard PSC circulators like the 007-F5. However, the ECM product has an AC to DC converter in it, which turns it into a DC motor. The modulated signal from the PC705 will look like a low voltage scenario and the circulator with error on low input voltage. Regardless, this won’t change the speed of the circulator, it’ll just make act erratically and potential cause premature failure.
    Dave H_2
  • CC.Rob
    CC.Rob Member Posts: 130
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    Thank you all very much. What you describe is what I was concerned about. Traditional 007 it is. 
    SteveSan