Heating help, radiators and underfloor

[Leesparkykent]

Hi Lee, sorry to bother you pal but you seem to be the go to man when it comes to heating around here , I'm going back to 2nd fix this tomorrow, the only question was about this extra 2core and earth I was bring to the timeclock, when connecting this at the uh4 does this just connect in with the incoming mains to the UH4, justbwamting to be on the safe side before anything is turned on as it doesn't show this cable on the wiring diagram, thanks

Hi mate, what controls are you using? Do you have a 3 channel programmer which 1 channel is for the UFH, 1 channel for the rads and the other for hot water? you aren't using programmable thermostats just non programmable ones? To pick up a permanent feed for the programmer it would be best to take it from L E N from one of the zones this way it protected by the wiring centres internal fuse.