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Taco Zone Valve hack?

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heritageproperties
heritageproperties Member Posts: 15
in Radiant Heating
So, I bone-headedly ordered normally open valves instead of normally closed. Does anyone know if there is a jumper or some sort of quick hack to swap the valve actuator head from normally open to normally closed?

Thanks,

Hasty-order-button-clicker

Comments

  • STEVEusaPA
    STEVEusaPA Member Posts: 6,505
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    Nope. Can't you return them, or did you already install them?

    There was an error rendering this rich post.

  • SteveSan
    SteveSan Member Posts: 234
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    Unfortunately there isn't a quick fix to change from n/o to n/c. If you ever have a question on a Taco product please call 401-942-8000 just ask for Tech Support and any one of us can help you. We are here Mon-Fri 8am-5pm EST.
    Erin Holohan HaskellIntplm.
  • Dave H_2
    Dave H_2 Member Posts: 556
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    @heritageproperties

    Sounds like you got your hands on the Zone Sentry.

    You don't have to replace the entire zone valve especially if the valve body is installed. You can get a new powerhead to change from normally open to normally closed.

    Dave H.
    Dave H
    Intplm.
  • unclejohn
    unclejohn Member Posts: 1,833
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    If I got this right the valve is open when there is no power to it and it closes when you power it. If thats how it works you can use a 90-340 relay and the power the valve through the NC contacts and tie the tstat to the relay coil and that will open the contacts and drop power to the valve.
  • hot_rod
    hot_rod Member Posts: 22,157
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    unclejohn said:

    If I got this right the valve is open when there is no power to it and it closes when you power it. If thats how it works you can use a 90-340 relay and the power the valve through the NC contacts and tie the tstat to the relay coil and that will open the contacts and drop power to the valve.


    RIB relays for around 10 bucks is an inexpensive way to do this.
    We use them when you have a valve that needs power to open and power to close.

    One issue with N.C valves is they end up powered for a lot of the year, probably shortens their life.
    Bob "hot rod" Rohr
    trainer for Caleffi NA
    Living the hydronic dream
    EdTheHeaterMan
  • EdTheHeaterMan
    EdTheHeaterMan Member Posts: 7,844
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    Do yourself a favor... get the correct valve. if the manufacturer of that valve has a NC valve you may get off easy by just changing the guts without soldering the new valve body.

    Put the wrong guts on the unused valve body and sell them on eBay or Craig's list.
    Edward F Young. Retired HVAC ContractorSpecialized in Residential Oil Burner and Hydronics
  • hot_rod
    hot_rod Member Posts: 22,157
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    Most all ZV allow you to just swap actuators, be your best course of action
    Bob "hot rod" Rohr
    trainer for Caleffi NA
    Living the hydronic dream
    JakeCK

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