Looking for 2 AC's with 30 amp tips

Our new fifth wheel has 2 15K AC's and I know you can't run both when at a 30 amp site. The 2nd AC is directly above the bedroom which is in the front of the trailer. So is it best to run the main AC during the day then switch to the bedroom at night? Both units are hooked into the ducting but the main doesn't blow much air in the bedroom. Also is it OK to run the main AC and run just the fan on the bedroom unit? When I do that it blows more cold air in the bedroom. They are both Coleman-Mach units.