David-1712 Posted September 11, 2022 Share Posted September 11, 2022 Hi, was wondering if anyone can give me a bit of help understanding the flow rates required to run my UFH. I have the below info left with by the previous owner of the house ( we moved in a few months ago and just trying to get my head round everything ) detailing the loops and the return valve settings. I thought I was the flow meters that you adjust not the return valves? I tried to set the flow meters to match the table but I cannot get those settings. Not sure if it’s a pump issue or if these settings are way off? what should the flow meters be set at? I know that’s a little hard to say as heat output & hear loss calcs would need to be done I presume? Link to comment Share on other sites More sharing options...
JohnMo Posted September 11, 2022 Share Posted September 11, 2022 Do you have a photo of what you were adjusting? Link to comment Share on other sites More sharing options...
David-1712 Posted September 11, 2022 Author Share Posted September 11, 2022 (edited) 6 minutes ago, JohnMo said: Do you have a photo of what you were adjusting? The flow meters at the top - screwing then in or out to get the flow rates. The table has return valve settings on it. Bit confusing when I thought it was just flow settings you can adjust. this photo wasnt taken today. I turned on all the loops and tried to adjust them as per the table starting with the furthest away loop. Edited September 11, 2022 by David-1712 Link to comment Share on other sites More sharing options...
JohnMo Posted September 11, 2022 Share Posted September 11, 2022 Only thing I would say it's the flow meters to adjust and you need to make sure all loops have a call for heat. Link to comment Share on other sites More sharing options...
jayc89 Posted September 11, 2022 Share Posted September 11, 2022 Where did you get those return valve settings and are they in litres per minute? Link to comment Share on other sites More sharing options...
David-1712 Posted September 11, 2022 Author Share Posted September 11, 2022 47 minutes ago, jayc89 said: Where did you get those return valve settings and are they in litres per minute? They were left in a drawer along with all the other info for everything in the house. We moved into this house a few months ago. What other flow rate would they be in? Link to comment Share on other sites More sharing options...
Fly100 Posted September 13, 2022 Share Posted September 13, 2022 Salus Automatic Acuators are great and do all this for you, giving you optimin flow rates. Link to comment Share on other sites More sharing options...
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