Last seen: Feb 13, 2024
@derek-m mostly because that is what the documentation that came with the heat pump says, and I quote "... and 30l/min on the 12 and 16kW unit." ...
I am going to say that my maths is probably not correct here [earlier post that said 30x]. Will come back following some more thought. A quick look ...
Here is one spec sheet I found. They are not for my valves, but the below are two different sizes of the V8043. You can see the impact at my target ...
@scrchngwsl That is a good question, one I am trying to work out for myself. Ideally you need to know your target flow rate to start. This simple nu...
@heacol What I am learning is how to understand the numbers. There is a big difference between getting 8.6 m3per hour with a 1 bar pressure drop (whi...
@heacol Thanks for the link. I already have a Grundfos Magna 3 [25-100]. I think I have a dodgy manual flow meter as well (seems to go down to 22mm ...
@heacol I am trying to fix my flow rate. I can get 30 litres per second but with the [single] pump running @95% of capacity and using 106w and making...
@iancalderbank - you might be able to get a really quick and cheap solution up and running with a couple of $5 esp32's, some 1 wire sensors and toit. ...
@cathoderay Excellent thread and great start, thank you. Given the many different circumstances I would suggest anyone heading down this journey t...
@iancalderbank Hi Ian I would not follow my route unless you also want to also add a PWM to 0-10v converter since I was not aware of the PWM option du...
@derek-m I think I got this info from one of your other posts and will rectify this shortly, though will be a bit convoluted as I need a PWM to 0-10v ...
@cathoderay You are 100% correct, and I apologise for the concise nature of my post, did not want to get into too much detail in this thread and was t...
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