In article
,
stevelup wrote:
On Mar 2, 12:40 am, geoff wrote:
In message , "Dave Plowman (News)"
writes

In article ,
geoff wrote:
In message , "Dave Plowman (News)"
writes
In article
,
stevelup wrote:
You need Part No. 7133 385 according to the installation manual. This
is a wall mounting adaptor plate for the controller and includes a
blanking plate for the front of the boiler.

Ah. Thought I'd read it from cover to cover.

Maximum cable length is 30M and you need 2 core cable apparently.

Wonder why the plug is 4 pin?

But thanks very much for that.

Surely there's a schematic which explains it all

I must look at it again more thoroughly but I remember it as not giving an
actual circuit of everything - just those external parts like pump etc.
More of a block schematic.

Well, of course it won't, but between what it does tell you (don't
ignore the fault finding) and poking around with a meter, you should be
able to crack it

--
geoff

Hmm.

It's definitely two wires according to the schematic. Pins 7&6 of
connector X3.

See page 13 of this document:-

http://tinyurl.com/382uo4

I'm on shaky ground here but isn't that referring to using an external
controller with the original still in place but set to continuous?

Dave, does your controller look like the one on page 14?

Yes - similar. It's called a Vitotronic 200 - the one with weather
compensation mode.

Steve

--
*If tennis elbow is painful, imagine suffering with tennis balls *

Dave Plowman London SW
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