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Rads heating even though zone valves off

  • 23-05-2016 5:48pm
    #1
    cruiser202006
    Registered Users, Registered Users 2 Posts: 366 ✭✭


    anyone any explanation as to why radiators would heat even though hot water zone is only on? Two zone system, one hot water and one heating. 8 radiators, 4 of which are heating with heating zone valve off. Valve not shutting fully?? Theyre brand new valves


Comments

  • #2
    Dtp1979
    Registered Users, Registered Users 2 Posts: 12,870 ✭✭✭✭Dtp1979


    cruiser202006 wrote: »
    anyone any explanation as to why radiators would heat even though hot water zone is only on? Two zone system, one hot water and one heating. 8 radiators, 4 of which are heating with heating zone valve off. Valve not shutting fully?? Theyre brand new valves

    Did you obey the 3 tee rule?


  • #3
    cruiser202006
    Registered Users, Registered Users 2 Posts: 366 ✭✭cruiser202006


    Dtp1979 wrote: »
    Did you obey the 3 tee rule?

    I didn't install, just called to try figure out the problem. Not obeyed from what I can see. Auto bypass is on the flow pipe to return pipe on cylinder above zone valve


  • #4
    Dtp1979
    Registered Users, Registered Users 2 Posts: 12,870 ✭✭✭✭Dtp1979


    cruiser202006 wrote: »
    I didn't install, just called to try figure out the problem. Not obeyed from what I can see. Auto bypass is on the flow pipe to return pipe on cylinder above zone valve

    Yea that's the problem. 3 t rule


  • #5
    cruiser202006
    Registered Users, Registered Users 2 Posts: 366 ✭✭cruiser202006


    Dtp1979 wrote: »
    Yea that's the problem. 3 t rule

    Any simple fix recommendations that wouldn't involve a full repipe?!


  • #6
    cruiser202006
    Registered Users, Registered Users 2 Posts: 366 ✭✭cruiser202006


    Actually just looking at this again, would teeing flow to cylinder in above manifold solve problem? Want to be dead certain before I drain and do anythin as once I touch it its my baby!!


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  • #7
    Dtp1979
    Registered Users, Registered Users 2 Posts: 12,870 ✭✭✭✭Dtp1979


    cruiser202006 wrote: »
    Actually just looking at this again, would teeing flow to cylinder in above manifold solve problem? Want to be dead certain before I drain and do anythin as once I touch it its my baby!!

    Ye just take the flow out of the left manifold and tee into the flow at cylinder.


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