Potterton Suprima Wiring

[cr0ft]

My sparky is having probs wiring in this boiler. I don't do much wiring but it seems that there's a L, N and E three core which controls the pump from the boiler and a 4-core L, N, E and black wire (switched live) which I'm guessing controls the boiler from the switched lives on the motorised valves. Can anyone confirm this is how it should be wired up? I'm on about an S-Plan system by the way.

Would be handy to know from someone with experience of wiring these boilers before I go to finish it tomorrow with the sparky.

Thanks!

 

[Puddle]

as you say really pump through boiler for pump over run,thus the need for a permanent live and switch live to allow boiler on/off demand

 

[cr0ft]

Thanks Puddle, got this all wired in ok today. They have a faulty programmer though (HW always live) which is being replaced tomorrow. Cheers for the help.