If you look more closely the label is correct but the eye plays tricks.

There is a bracket for the 15 and the wire f is outside the bracket and
thus not labeled 15 though it almost appears to be.

Mark

David Beierl wrote:
>
>> Based on the schematic on page 97.56 of the Bentley manual, terminal
>>
>
> Look more closely at the drawing of the switch, which is shown in the
> "off" position.  All those wires a b c d at the top of the page are
> all 30 circuit (i.e. live all the time) and wire d comes to the 30
> terminal on the right side of the switch.  Note that there is an
> internal jumper in the switch to a second 30 terminal which supplies
> another wire feeding the clock.  That wire f is incorrectly labelled
> as a 15 (switched) circuit and feeds the clock.