OK great, which wire from outside wall goes to which terminal block connection? which connection does the grey wire go to in the security light?
Im assuming;
Brown to Brown
Black to Blue
Earth to G/Y
Grey to?
Thanks for all your help.
Im trying to figure out which wire goes where? The grey one is confusing me, I think its a switched live, see photo's, anyone help me out which wire goes where?
I have a megaflow system with Valliant boiler.
The boiler is working.
The hot water flow pipe from the boiler goes to a "T" junction.
Either side of the "T" junction is a zone valve.
The CH zone valve seems to operate & hence my radiators warm up.
The zone vavle to the tank? not...