Recent content by Deano1978

Ok i have quite an old y plan system and the programmer we had which was a clockwork type has given up. I know that the mid position valve is a honeywell v4073 which is compatible with the new programmer. My question is this behind the original back plate for the programmer I have 2 wires...

Just a quick question really, I am looking to but a new digital programmer as ours has finally given up. I am looking at the Honeywell st9400c which controls the times of the times of heating a water independantly. What I would like to know is if it is compatible with the V4073 mid...