Kohler 4744-0 Guía De Instalación Y Cuidado página 6

Grounding Instructions (cont.)
Temporary Connection
NOTICE: Unless the outlet cover screw is grounded through the
house wiring, attaching the adapter grounding screw tab to the
cover screw will NOT ground the unit. If there is any doubt
whether the cover screw is grounded, have it checked by a qualified
electrician or service professional.
A temporary connection with a two-prong adapter may be used
where local codes permit, provided the adapter is grounded.
1093479-2-B 6 Kohler Co.