I
ianbrookes
hi, I am relatively new at boiler wiring, but I am trying to learn, - - looking at the diagram for this boiler it has L N Ns Ls Lr, my question: are L and N used internally for pump overrun, internal programmers etc and are the Ns Ls Lr for external controls ?
if using external controls do both sides need to be wired up ?
thx.
if using external controls do both sides need to be wired up ?
thx.
