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Tekmar 4-way Valve question

ALH_4
ALH_4 Member Posts: 1,790
Could it be that the valve is piped incorrectly?

Lots of good photos would help us tell.

Comments

  • David_2
    David_2 Member Posts: 6
    Tekmar 4-way Valve question

    I am baffled by the numbers I am getting. I have a Buderus G115 heating both a former gravity circulated radiator (lots of mass) and new radiant heat. I have a Tekmar 4-way which is intended to lower the temp to the radiant manifolds and I have a number of sensors on it to see what is going on. I see that the supply temp to the radiant is always the same as to the rest of the system. Right now I have it set at 50%. This gets to be a problem in the afternoons when the entire space is warmed up and the thermostats in the radiant areas shut off the circulators to keep them from overheating. What could be wrong?
  • David_2
    David_2 Member Posts: 6
    See what I can do

    Will have to be tomorrow though. I have taken the Tekmar diagrams down there and held it (after all, it is above my head) and it look right. Its in a primary/secondary, with a Taco 007 on the primary and the two 007's on the secondary.
  • Plumdog_2
    Plumdog_2 Member Posts: 873


    Does it have an actuating motor?
  • Ted_9
    Ted_9 Member Posts: 1,718
    ??

    If both zone 007's are on at full how will the primary loop 007 provide enough flow??

    Rhetorical question here guys.

    Massachusetts

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  • Timco
    Timco Member Posts: 3,040


    I have a p/s system working with a 007 pri circ and 3 15-58's running my secondaries. Modern Hydronics states that the pri circ does not have to equal the total flow of the secondaries.

    Tim
    Just a guy running some pipes.
  • ScottMP
    ScottMP Member Posts: 5,884
    what is controlling the Four way ?

    > I have a p/s system working with a 007 pri circ

    > and 3 15-58's running my secondaries. Modern

    > Hydronics states that the pri circ does not have

    > to equal the total flow of the

    > secondaries.

    >

    > Tim



    Do you have a Buderus 2107 control ? If so does it have a mixing card ?

    How are you controlling the mixing valve ?

    Scott

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  • ScottMP
    ScottMP Member Posts: 5,884
    what is controlling the Four way ?

    Do you have a Buderus 2107 control ? If so does it have a mixing card ?

    How are you controlling the mixing valve ?

    Scott

    To Learn More About This Professional, Click Here to Visit Their Ad in "Find A Professional"
  • Ted_9
    Ted_9 Member Posts: 1,718
    True, Timco

    Yes this is true, but you may be using the low speed on all of you circs. I'll bet that this other install has 007's just because. No system design done.

    You designed and planned for your set up. yes?

    What happens if both radiant zones need 5gpm and your primary can only provide 5gpm? You'll only get 2.5 in each secondary 007, if they are running at the same time.

    I don't know what his requirements are, but I do know there will be fighting for flow with that set up. It may be fine though. More info needed.

    Massachusetts

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This discussion has been closed.