Kohler K-98741 Guide D'installation Et D'entretien page 18

Install the PDS (cont.)
If installing the PDS within a 2x6 stud cavity, position it to the far
left of the cavity to allow room for connecting the cables to the
side holes.
Attach the PDS to structural framing or other secure surface using
standard wood or drywall screws (not supplied). Mounting
boards may need to be installed between stud framing.
Remove the PDS cover.
Feed electrical wire through the 1/2" NPT hole into the power
connection chamber of the PDS.
Using wire nuts, connect the Line (black or brown), Neutral
(white or blue with white), and Ground (green or green with
yellow stripe) wires. Refer to the "PDS Connection Key"
illustration.
Following the electrical codes for internal wire bending, carefully
tuck the wires into the PDS housing. Ensure the wires will not be
pinched when reinstalling the PDS cover.
1207716-2-C 18 Kohler Co.