do you have a link to that AC? I can't find it on Carrier's website.
You can find the manual here to locate them in their table a few pages in
https://www.transarctic.com/media/document/document/mh9r7u92td.pdf
31amps is a huge draw on batteries.
35k BTU is a huge number for a portable AC...
So I just bought a 2011 E-350 with a handicap ramp and an installed EM-7/CM-2 Carrier Split AC System.
Can I run this system for a long time without running the engine and just tie in a large battery bank to keep it going for a few hours?
It has it's own compressor in the engine, condenser...