I`ve had a new boiler installed (Ferroli Tempra 30 - with integral pump) &
I`ve chosen to do the wiring myself.
The system is an S plan (boiler, 2 zone valves for CH & HW, room stat,
What I can`t figure out is the following:
The boiler has a mains cable (live, neutral, earth) coming out of it which
presumably needs to connect up somewhere. There is also a junction box
within the boiler which has 8 terminals. According to the wiring diagram, I
need to connect up terminals 1 & 2 (on the boiler) to grey and orange
outputs of the zone valves. (Terminals 1 & 2 currently have a loop wire
This is confusing as I don`t know whether to connect both the mains cable to
permanent mains (which means the boiler would be on permanently (unless I
take out the loop wire between terminals 1&2 on the boiler?) and also
connect up terminals 1& 2 to the zone valves
Very confused - help !?!