Set Square wrote:
In an earlier contribution to this discussion,
Dave wrote:


Thanks for the honeywell link, v.useful. DV is on the boiler and
connects to "Boiler/pump demand" in the wiring centre (the manual is
at: http://tinyurl.com/3slyp - 1.4Mb).



Can you give me a page number to look at in the manual, so I don't have to
read it all?!

Page 22.
Having read it again it's wired to the pump, the boiler can get the pump
running AND the controls can "enable" the boiler. The permanent Live
input will be to power the electronics in the boiler.

--
Dave S
(The return email address is a dummy)