Worcester 30 cdi system boiler

[buckley plumb]

Wondering if anyone has any info. starting a job next wk - granny extension. They want the radiators in there on its own circuit which normally is no problem just change s plan to s plan plus. The problem is the boiler has a built in diverter for htg and hw unvented cylinder. Have I got to remove the internal diverter and do as s plan plus or is there a another way. Boiler has built in Worcester 2 channel programmer

 

[glenntaf]

can you not leave the diverter in place and just put two 2 port valves on the CH flow pipe??

 

[buckley plumb]

can you not leave the diverter in place and just put two 2 port valves on the CH flow pipe??

No room stat goes back to pcb and timer is inbuilt. Spoke to worcester and they said remove it as timer is built into boiler. I was thinking same leave internal clock on constant and add 2 valves and programmable room stats operating valves and orange wire from each switching sw live to boiler. Can't find the worcester wiring diagram to check.

 

[Rickster123]

Is it a Worcester Classic 30cdi system boiler?? No built in timeclock on those, I fitted one last week.

 

[ShaunCorbs]

No room stat goes back to pcb and timer is inbuilt. Spoke to worcester and they said remove it as timer is built into boiler. I was thinking same leave internal clock on constant and add 2 valves and programmable room stats operating valves and orange wire from each switching sw live to boiler. Can't find the worcester wiring diagram to check.

https://www.plumbase.co.uk/documents/product/3550019

 

[buckley plumb]

Is it a Worcester Classic 30cdi system boiler?? No built in timeclock on those, I fitted one last week.

2 channel programmer fitted in boiler not external

 

[buckley plumb]

It's the manual for the Internal diverter and wiring diagrams I need thanks