Has anyone else compared the new HPWC manual to the old manual? The new one is comparatively unpolished and has a number of minor errors (I found at least 3). The one I'm struggling with is: - Page 18, Step 5: "Connect the wiring to .. the ground wires going to the locations shown in the following illustration'. The illustration does not depict the ground wire connection( scan attached). My electrician is coming next week to install, I'm just trying to understand how the installation works ahead of his arrival. Thanks.