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variable speed inj. mix question.

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S.D.
S.D. Member Posts: 13
I am installing a radiant system with three manifolds, two will be VSIM, one will be controlled by zone valve (it's all one zone) this will be my firt install with more than one VSIM manifold, my first question is does it matter how close the system pump is to the manifold as I am limited in space and all manifolds will be near the boiler, also as long as I keep at least six pipe diam. before I pull my second set of tees I should be o.k. and my second question is is there a spacing requirment for the diff. bypass valve? thanks S.D.
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