5500 Watts is 45 amps.
Each air conditioner pulls about 15 amps running (30 amps); BUT on compressor startup, each can pull up to 25 amps (50 amps)(or more depending on several factors like state of charge and air temperature).
Normally, both compressors wont be starting at the same time (which would definitely trip the breakers. However, if there is any significant ac draw, like water heater on AC, low battery charge state, high DC usage, TV on, etc) you can easily overtax that generator which is much less "over-amp" tolerant than a circuit breaker.
Make sure your water heater and fridge are on propane.
Lou and Laura with Bella - German Short Hair Pointer
2008 GMC Sierra 2500HD Crewcab SB Allison Duramax
2010 Flagstaff 8526RLWS - Superglide 3300
HAM CALLSIGN - KC3FFW