One floor loop not heating

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bdohrn
bdohrn Posts: 1
edited 5:15AM in Radiant Heating
IMG_0064.jpeg

One loop of my hydronic floor heat is not warming up at present. I tried to purge the zone but when I attached the garden hoses to the webstone purge valve (having closed the main valves to isolate the zone) nothing moved. Per the designer of this system’s instructions for initial filling, I closed two of the flow meters and opened two including te problematic one. No water came out of the return…. I’m not sure if the hose I used should have been bigger so as to make more pressure?

Any thoughts on other reasons that the loop might be non responsive? The others are working….

Comments

  • hot_rod
    hot_rod Posts: 28,582

    look like only one of the white actuators is open in that pic. The top pops out with a green ring. How are you opening the others?

    The ball valve on the pressure bypass needs to be closed when purging also.

    Bob "hot rod" Rohr
    trainer for Caleffi NA
    Living the hydronic dream

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