Forest River provides no such specific info on any of their RVs.
only manufacturers' paperwork for each individual item, like oven, a/c, awning, water pump, converter, and so on.
only someone else who has a FEMA trailer could give you this type of info, as far as what types of systems it came with.
a Cherokee 28a+ owner could help but his would be equipped differently than a FEMA version of the same trailer.
a quick visual inspection of the trailer, would be your best way to find out.
and Zoe the Wonder Dog(R.I.P.)
'07 Roo 23SS pushing an '07 Chevy Avalanche
Equalizer WDH and Prodigy BC