GE 45613 GE Z-Wave 3-Way Dimmer Kit with Terminals - Manual (Page 8)

Other
color
White
Z-Wave
Auxiliary
Z-Wave
Primary
Black
Black
(Line / Hot) Black (Line / Hot)
White
White (Neutral)
Black
(Load)
White
Z-Wave
Primary
Z-Wave
Auxiliary
Colored (NOT GREEN)
Black
Black
Black
White Switch 1 Switch 2
Typical 3-way circuit:
Wrong Z-Wave switch position for typical 3-way circuit;
Correct Z-Wave switch position for typical 3-way circuit: