Originally Posted by
eddr
Hi again all, got a couple of easy (I think) questions....
1) I plan to take control of central heating past the heating timer, so the original plan was put a relay module inbetween the timer and thermostat. This is cable has 3 wires, which according to the thermostat is Neutral (black) Live (red) and Call (Yellow). The question is, how can I wire it up so I can put a switch to choose whether the 'normal' thermostat is in control, or the relay module ? And which wires would go where?
Thanks in advance!