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Taco 007e question

tomkcolorado
tomkcolorado Member Posts: 1
in THE MAIN WALL

Hello, i have a hydronic system in my home, with 4 Taco 007-F5 circulators. I have 2 questions for the contributors here, I see a TACO rep is monitoring and replying to this thread. One of my main circulators that powers 4 critical zones two stories up, went out , a -10F at nights, all week long , so i rushed to my local supply house and all they had on the shelf was the 007e smart unit, they said it was a 1:1 drop in. So I bought it. I am a reasonbly adept 1:1 replacement DIYer, I successfully installed the 007e. It seems to be working as advertised this past month. However, reading the cut sheets to put a few more on my shelf for spares, of the 007e, it says a "16 GPM max flow rate", and the 007-F5 cut sheet says "23 GPM max flow rate". 

  1. Did I just install a 007e unit that delivers 30% less GPM to my critical zones? I don't really care about saving electricity, i need to keep this house warm in the Dec-March months at 8,000 feet elevation. 
  2. Can i keep the "dumb iron" flanged Cast Iron body of the legacy 007-005 inline and intact , and just swap out/install the "smart" module of the 007e with the 4 screws and the associated o-ring gasket? Will that swap out still give the same GPM and pressure curve performance? Reason: I don't want to monkey with the flange bolts, gaskets , and loosen the copper piping braces if i dont have to — its not leaking now, i dont want to risk it. The 4 bolt swap out is brilliant. but not sure if i can mix/match.

Thanks! TK

Comments

  • HeatingHelp.com
    HeatingHelp.com Member, Moderator, Administrator Posts: 132

    @tomkcolorado welcome to Heating Help! I've created a new discussion for you here to prevent your post from getting lost at the bottom of an older thread.

    Forum Moderator

    tomkcolorado
  • kcopp
    kcopp Member Posts: 4,525

    If it seems to be working then I wouldnt sweat it. Most times circulator pumps are oversized...

    tomkcolorado
  • yellowdog
    yellowdog Member Posts: 256

    I still remember sitting in a Taco class almost 20 years ago when they said that the 007 is the most mis-applied circulator in the world. It is almost always oversized for what it really needs to do.

  • Dave H_2
    Dave H_2 Member Posts: 608
    edited February 13

    Max flow is max flow and it depends upon the system, that would mean you have zero resistance to flow that much and the pipe size to match

    Here is a webinar discussing pump curves and system curves

    https://www.youtube.com/watch?v=5r_lzinyde4

    Dave Holdorf

    Technical Training Manager - East

    Taco, Inc

    tomkcolorado

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