i have a wirless stat to fit to my system, the wired is a danfosss room stat and has 3 core wire no.1 L no.4 N dont know what no.3 is ?
my new wireless stat is a celect DRF1 which has a N + L and no.1 + no. 2
where should i wire this into the danfoss wiring centre or use the three wire...
