J
Jeffmo65
Wiring a Worcester Bosch grew star 24ri . I have fused spur 3 core to boiler and 5 core back to wiring centre. 5 core to CHV and 5 core to HWV . Manual room stat 3 core and Earth to wiring centre . Programmer is built into boiler . Oh and a 3 core flex to tank stat . Unvented S Plan . Please explain again since many years since done S plan where these wires connect in my 10 way connector block .
Cheers
Cheers