"Ed Sirett" wrote in message
news
On Mon, 23 Jan 2006 21:41:07 +0000, Geronimo W. Christ Esq wrote:

Set Square wrote:

Depending to some extent on how many conductors there are in the cable
running between the boiler and airing cupboard, and on where the whole
lot
is powered from, what you want to do is probably possible.

I would have to take a look, but the only wire I know about running up
to the cylinder is to control the pump. This is via a fused switch, so I
suspect it is just a mains wire coming up from the timeswitch. I am not
100% sure but I do not believe there is any pump control coming from the
boiler (a Baxi Solo 3/50 PF); I think the switch just turns the both the
boiler and the pump on or off (the pump runs constantly when the system
is on). I wouldn't be surprised to crack it open and find both the
boiler and the pump appliances wired to the same terminals.

OK. Looks like it's a broken install. The Solo 3 DOES operate the pump
directly from the boiler. So it look like you'll need a multicore from the
airing cupboard to the boiler.



If the boiler doesn't have a run-on timer, what's wrong with wiring the pump
in parallel with the boiler?

Then just 3 core (ie 2 and earth) would be required which is what I assume
he has already?