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Buffer tank control...

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kcopp
kcopp Member Posts: 4,577
in Thermostats and Controls
What would be the best aquastat controller to use on a buffer tank that has a mod/con boiler driving it?

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  • NYplumber
    NYplumber Member Posts: 503
    We used Tekmar

    We used a Tekmar 261 to control two boilers and a buffer tank when a Taco SR502 or ZVC403 sent a boiler demand signal.



    Unless I am mistaken, the use of an aquastat would mean the buffer tank constantly gets satisfied even when the zones arent calling.
    :NYplumber:
  • kcopp
    kcopp Member Posts: 4,577
    you are correct...

    Trying to wrap my head around the best controlling stategy... System has two zones. 1 w/ panel rads the other w/ Raupanel. 30 gallon buffer, and a Onex combi boiler.Trying to reduce the run time of the onex . Maybe I am missing the piont of the mod/con. ty,kpc
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