unvented electrical controls set up

[stratplus]

Anyone point me in the right direction as to how these are wired up. Two two ports, wiring centre, two channel programmer, room stat, boiler, fcu. Is this same as a standard s plan but the cylinder stat is different with the resetable over heat switch And an extra two port as a safety cut out.

 

[lame plumber]

is an s plan, dont need the extra 2 port, just use the one the cyl manufacturers provide to ensure warranty cover so if you buy an s plan pack you have one left over

 

[tolly]

Also alot of unvented tanks come with the reliance cylinder stat, theres already a link wire fitted between the high limit and the control stat so its a straigt foward.