Hello
vaillant eco-tec 615 system boiler
Have wired all stats and programmer up .
Used a 3 amp spur which is wired in to boiler
question is what terminals on boiler do i use to run to run cable up to wiring centre ,it is a y-plan
vaillant eco-tec 615 system boiler
Have wired all stats and programmer up .
Used a 3 amp spur which is wired in to boiler
question is what terminals on boiler do i use to run to run cable up to wiring centre ,it is a y-plan