Unik Switch Dial 7112, 71105. 2 Speed, 6 Position Rotary Fan Switch. Connection pinout on the switch - Position 1: Off, Position 2: L1 to 2, Position 3: L1 to 2 & C. Position 4: L1 to 1 & C, Position 5: L1 to C, Position 6: L1 to 1.