PROBLEMS WITH NEAUTRALIZER. MARRIED GAS & SOLID FUEL TOGETHER USING A NEAUTRALIZER.ALL PIPED AS PER MANUFACTURERS INSTRUCTIONS EXCEPT FOR CIRCS ON SOLID FUEL WHICH ARE 22MM INSTEAD OF 28MM.ALL WORKS FINE , EXCEPT FOR RETURN CIRC WITH GRAVITY. HAVE CHECKED THE COIL,THATS CLEAR.ALSO DRAGGED IT THROUGH ON RETURN.BUT IT WONT CIRCULATE BACK THROUGH NEAUTRALIZER.ANYONE ANY EXPERIENCE OF THIS SETUP.SORRY FOR SHOUTING.NOT VERY GOOD ON COMPUTERS.
NEAUTRALIZER PROBLEM
- Thread starter fitz1
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Hi am i in the right forum?Thought this was plumbing & heating < not the ghost forum. Hello is anybody theeeeeeeeeere?I.E. Neutralizer>
ASKED THEM, ALL O.K. SHOULD WORK. BUT IT DONT.
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DUNSLEY TECHNICAL HAVE ACCEPTED THE INSTALLATION,BECAUSE FLOW IS FLOWING INTO NEUTRALIZER AND FLOW CIRC GETTING HOT AT CYL.ALSO RETURNING FROM NEUTRALIZER.AN AAV IS FITTED ON FLOW AT CYL.
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Stop shouting, it's giving me a headache, if it aint plumbed in as per installation instructions then sort it, then if it doesn't work ask the pratts that made it.
My deepest apologies. Slowly getting used to this fandangled machine.Not shouting anymore. 
Anyone interested, go to dunsleyheat site and look up two boiler setup, with type R neutraliser.
Dunsley say it should. We think it should. previous job done was two gas boilers and one solid fuel.that worked fine. P.S. This is not my install, but a friends. Just trying to help him. I can only think air is the problem.,but on investigation , doesnt seem to be. I disconnected the return from neutralizer and connected it direct to solid fuel. Gravity hot water worked fine.Problem seems to be with some form of negative pressure on return at neutralizer.May have to scrap diagram and try to redesign returns. Thanks anyway.
No . It doesnt need to be.Alright sat on same base .According to dunsley technical.
From cyl falls approx 2 inch to bottom connection on neut.
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