Diagram for a 3-way switch - Garden

Diagram for 3-way and 4-way switching can be seen on following link.
3-way diagram applies to switches only (and not to 3-way timers or dimmers, which may add specific variations to wiring).

http://waterheatertimer.org/ST01C-program.html#3-way

Notice that the dark screw is key to wiring 3-way circuit.
Each 3-way switch has 1 dark screw (the common screw) and 2 brass screws (travelers) ... and a green ground screw.

Also see more electrical information:
http://waterheatertimer.org/See-inside-main-breaker-box.html
http://waterheatertimer.org/B220C.html
http://waterheatertimer.org/Install-owb.html

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