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I have a Rayburn running my CH and HW, when the boiler is lit, the gravity flow works as it should rises to the cylinder and drops back to the boiler...when the cylinder is hot enough the CH pump comes on and this is where it goes wrong.
The pump seems to be pushing the cold radiator water up through the injector tee rather than going through it and pulling the return water from the cylinder to merge and then continue into the boiler. I've changed out the tee but the issue still continues.
I've drawn a quick sketch of how the system is piped. Their is also a heat leak rad in their but I've just not drawn it.
Any advise would be awesome.
The pump seems to be pushing the cold radiator water up through the injector tee rather than going through it and pulling the return water from the cylinder to merge and then continue into the boiler. I've changed out the tee but the issue still continues.
I've drawn a quick sketch of how the system is piped. Their is also a heat leak rad in their but I've just not drawn it.
Any advise would be awesome.
