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entry return on a monoflow

BennyT Member Posts: 2
Can someone confirm that the venturi is on the return, I believe the flow is following the red arrow. The rad is below the main.



    HVACNUT Member Posts: 5,476
    edited October 2018
    Yes, and the bull of that Tee is the supply for that rad.

    Why? You just gonna leave us hanging?
    EBEBRATT-Ed Member Posts: 14,534
    sometimes below the main requires two venturis one on the supply and return
  • BennyT
    BennyT Member Posts: 2
    edited October 2018
    I have a myson T6 connected and it is imperative that the supply (bullhead tee) is connected on the entry side of the rad.
    I had the boiler changed last year and the rad stopped heating. I am quite sure it was working ok before (maybe not as well as if it had two monoflow tees in opposite direction). I was scared it was connected the wrong way, but I might have an air problem it seems.
    Could the venturi in the picture be used as an entry, if I had an identical venturi downstream to use as a return? They are not in opposite direction, is this type even reversible?