intergas open vent

[buckley plumb]

been asked to quote for the above boiler - but can I use the internal time clock - looked at wiring diagrams and they show ext controls - cant see how internal clock would do htg and hw - manual not very clear

 

[lame plumber]

the integral clock ison or off only, no control for separate hw side ie it will only turn the boiler on off and not differentiate for hw or heating so a ext 2 channel programmer is required along with an s/y plan set up as per normal. Clock is only really a product of a combi set up and left on the boiler, which has to be left on C for the system to work.

 

[Simon F]

as said, set to C-on then external controls will operate it.
switch live (240 volt) wired into position 1
will need the offset flue for open vent as the flow and return run up the left side top exit

 

[buckley plumb]

thanks thought that but was not sure - so wired as standard s plan it looks like

 

[Roger Welton]

Yes don't forget to remove link between 6 and 7