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Discuss Flow and return the wrong way around in the Water Underfloor Heating Installations area at PlumbersForums.net

I would really appreciate your view on this underfloor heating set-up.


I’m experiencing what sounds like a knocking noise from the manifold/pipework (can’t tell which) for a few seconds whenever the underfloor heating zones are switched on, so am wondering if it’s an issue with a valve or something.



I’m also seeing that the temperature gauge on the return is always higher than on the supply side as shown on one of the photos (and all the flow meters have always been in the fully ‘red’ indication). I think this due to the fact that the flow and return seems to be the wrong way around ?


I would be very grateful if you could take a look and confirm if the pipework all looks to be in the correctly fitted locations.


I’ve attached a few photos of my manifold system – I’ve been trying to work out what each component does and how it works.


Would appreciate any advice (not looking to carry out the work myself, but at least know what to look at first).

Thanks

IMG_2952.JPG
 

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