I have a multiplus 12/3000/120. The manual states on page 9
"The MultiPlus is provided with a ground relay (relay H, see appendix B) that automatically connects the Neutral output to the chassis if no external AC supply is available."
If you examine the appendix B of that same manual it shows a relay action on "PE" of AC Out, L of AC Out 2, and the input L,N. It does not represent what is stated on page 9 where the AC Out N is connected to the chassis. Can you please clarify?