cir pump leaking by

evamaxx Posted By evamaxx, Jan 28, 2013 at 7:05 PM

  1. evamaxx

    evamaxx
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    Nov 10, 2012
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    anybody have trouble with cir pump leaking by (hot water passing by pump when off) 1 zone sup and ret lines all hot all the time . when t-stat is not calling for heat? would a zone valve work better stop flow? thanks mark
     
  2. BadgerBoilerMN

    BadgerBoilerMN
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    Jan 21, 2013
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    Gravity flow. Find a pump with integral spring check. Use spring check or install thermal trap.
     
  3. evamaxx

    evamaxx
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    Nov 10, 2012
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    im using new taco 007 not sure if it has spring check
     
  4. henfruit

    henfruit
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    Nov 27, 2007
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    It should me marked ifc if it does.
     
  5. evamaxx

    evamaxx
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    Nov 10, 2012
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    i checked it is a ifc circ ? IM UAING A TACO 011 ON BOILER TO PUSH WATER 120 ' IN 1" FLEX PEX COULD IT BE THAT THE 011 IS PUSHING PAST THE 007 ONLY 4' AWAY ON GARAGE LOOP? THANKS
     
  6. ewdudley

    ewdudley
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    Nov 17, 2009
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    Can't really tell without a clearer description or a schematic, then again obviously it can if it does.
     
  7. BoilerMan

    BoilerMan
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    Apr 16, 2012
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    From your description, if I'm visulaizing it correctly, you have the 007 IFC teed off the 1" line that goes to the house? If this is true, then the 0011 would definatly open the IFC in the 007. A zone valve may be needed to stop the flow, you could wire up a 120V zone valve in parrellel with the 007, or use the end switch to run the 007 for a better install and avoid dead-heading the 007 while the ZV opens.

    TS
     
  8. evamaxx

    evamaxx
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    Nov 10, 2012
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    thanks taylor for tip should i take out the circ and use the zvalve only? whats the plus and neg on that the 011 moves a lot of water when i burped the system in basement the line to storage it loked like a garden hose! thanks mark
     
  9. BoilerMan

    BoilerMan
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    Apr 16, 2012
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    I'm inclined to think that the 0011 is a good choice for alot of underground pipe runs. In your setup, a flow check may not hold off the flow with the weight inside. This is based on my understanding of what you said. A piping diagram would be the most helpful, as EWD said.

    TS
     
  10. BadgerBoilerMN

    BadgerBoilerMN
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    Jan 21, 2013
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    The 0011 pulls nearly 2 amps. 2 amps x 120V = 240watts

    We design all kinds of hydronic systems and rarely use a circulator with this kind of horsepower unless it is a snow melting system.

    As you an see it will produce 8 gpm at 20 ft. of head.

    http://www.taco-hvac.com/uploads/FileLibrary/0011Sht.pdf
     
  11. ewdudley

    ewdudley
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    Nov 17, 2009
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    Is it 120 ft round trip or one way?
     
  12. evamaxx

    evamaxx
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    Nov 10, 2012
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    Loc:
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    120 each way im working on print now but my layout
    is alot lot like the tarm set up in the book
     
  13. evamaxx

    evamaxx
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    Nov 10, 2012
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    the house is 2 story and the garage has a 2 story office
     
  14. taxidermist

    taxidermist
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    Mar 11, 2008
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    Mark,

    I think your going to have to stay with at least the 011 due the the long run with only 1" pex. And because you can only heat your garage if the boiler has a fire in in then I would remove the 007 and replace it with a zone valve.

    Rob
     
  15. taxidermist

    taxidermist
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    Mar 11, 2008
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    Ok I spoke with Mark tonight. This pump that is ghost flowing is piped on the return line pulling water thru the zone. He has a pump right next to it that is not ghost flowing that controls the baseboard in the garage and it stays cold unless the T stat calls for heat.

    The copper pipe with the black paint is supply and return to the house.

    The pumps to the rt are the pumps for the upstairs garage zone and first floor garage zone both are large baseboard

    Rob
     

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