On 2007-07-11 07:14:07 +0100, Ed Sirett said:

Agreed.
There must be a a way to connect a wall themostat to the combi.

There is but it's a proprietary room controller.

There are a couple of terminals next to the mains input with a link
between them, but the manual seems to say nothing about them other than
that there is a link. Possibly this is a switched live, but it
doesn't seem to say.


That is the way you drive the zoning.
Some WB models have all the connection for zoning builtin to save you
useing a wiring centre (such as the 24 SBi) that's probably what threw the
WB techies.





AL you need to do is connect the all the grey wires to one of the
thermostat terminals and all the orange wires to the other thermostat
terminal.