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Can anybody ID this German thermostatic mix valve?

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gerritg
gerritg Member Posts: 3
edited September 2023 in Domestic Hot Water
Only idenfying mark is an “H” Here are the pics. Installer never adjusted it and I have no info on it and don’t know how to adjust it. Thanks in advance!

Comments

  • Alan (California Radiant) Forbes
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    That's a fill valve, not a mix valve.

    "H" = European Honeywell?
    8.33 lbs./gal. x 60 min./hr. x 20°ΔT = 10,000 BTU's/hour

    Two btu per sq ft for degree difference for a slab
    Mad Dog_2HomerJSmith
  • kcopp
    kcopp Member Posts: 4,438
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    Its just a simple Honeywell fill valve . FM911
  • gerritg
    gerritg Member Posts: 3
    edited September 2023
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    Thanks! I cannnot find another adj valve anywhere, so I don’t think he put in the right valve or its in the wrong place. It’s for a Triangle Tube Instinct Combi that was installed by a known questionable tech who was fired after our install for theft. Couple more pictures, I welcome feedback from those who work with these for a living, I’m an electronics engineer.
  • hot_rod
    hot_rod Member Posts: 22,244
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    Looks like someone jammed a press female adapter on the outlet? I think that is a BSP thread.
    Bob "hot rod" Rohr
    trainer for Caleffi NA
    Living the hydronic dream
    HomerJSmith
  • kcopp
    kcopp Member Posts: 4,438
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    What temperature are you trying to adjust?
  • STEVEusaPA
    STEVEusaPA Member Posts: 6,505
    edited September 2023
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    I’d doubt a German made valve would use psi instead of bar , and 1/2 instead of mm.
    Why do you think it’s German?

    There was an error rendering this rich post.

  • HomerJSmith
    HomerJSmith Member Posts: 2,467
    edited September 2023
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    A mixing valve has 3 ports, a fill valve has 2 ports. That's very much like Caleffi's design. Showing the pressure gauge placement.

    Intplm.
  • gerritg
    gerritg Member Posts: 3
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    I’m not concerned about the fill valve anymore I’m just curious why there’s not a thermostatic mixing valve. Oh, and the fill valve said made in Germany. 
  • HomerJSmith
    HomerJSmith Member Posts: 2,467
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    Why do you think that you need a thermostatic mixing valve?
  • psb75
    psb75 Member Posts: 843
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    Can we see a close-up pic of the printing on the red plastic cap?
  • hot_rod
    hot_rod Member Posts: 22,244
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    Typically you do not need mixing valve on a combi.  The control should manage the outlet temperature accurately 

    There are s few states that require mixing calves on all DHW heaters, Vermont, Maine perhaps
    Bob "hot rod" Rohr
    trainer for Caleffi NA
    Living the hydronic dream
    Intplm.