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Author Topic: tell us> set boiler temp / differential / return temps / gf alpha pumps  (Read 7119 times)

atvalaska

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Re: tell us> set boiler temp / differential / return temps / gf alpha pumps
« Reply #15 on: November 02, 2014, 06:29:30 PM »
Grundfos Alpha ... I talked to  gf....don't use the gfa..as a main boiler pump ....it "shines" on your zone valved system ... my auto adatped did learned that my system/lines are a  pumping  9 gal per min   it found the flow...!  that's good to know! ....but not what I had in mind for the pump ...I was told to swap my gf 3  speed  that I have on the zones for the gfa....here I go !!!
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