I want to replace just the top valve of a TRV on an upstairs radiator.
The exisiting one is an old danfoss with a black top, and the new one is also a danfoss but all white...RAS-C2 Combi
Quite a few years ago I changed just the top on a downstairs radiator without draining the system but have forgotten how I did it.
Is it possible to just change the top part, because the old one is covered in paint and marked and I prefer a nice clean one.
I have seen various threads on this subject but would like confirmation.
Thanks
The exisiting one is an old danfoss with a black top, and the new one is also a danfoss but all white...RAS-C2 Combi
Quite a few years ago I changed just the top on a downstairs radiator without draining the system but have forgotten how I did it.
Is it possible to just change the top part, because the old one is covered in paint and marked and I prefer a nice clean one.
I have seen various threads on this subject but would like confirmation.
Thanks