Recent content by datacollector

Many thanks to those who took the time and effort to reply. After stripping the old gear out and spending several hours looking at what was left I suddenly had a eurika moment and did what "Waterworks" has suggested (albeit before reading his advice. I'm impatient like that) . And all is...

Can anyone help? I am replacing an old EP2002 with a new Drayton LP522, on a gravity fed, pumped HW system. The potterton back plate has the following wiring connections. A,B,C,D N L 1,2,3,4,5, I Have connections to D = B,BR L,N, 3,4,5. What do I connect the Existing D...