Originally Posted by SK_AusTX
We are two years into our 318BHS purchase. IMO, 15k AC is necessary in these parts (TX).
In most cases the 15k unit keeps the unit "serviceable" (but not cool) in 100 degree heat with no shade. With shade, no problem.
Most heat gain seems to come from slides which have thinner walls/insulation in roof. A slide awning may help, though we have not tried that yet. Bunkhouse gets hot, as ducts don't move enough air.
A bigger issue has proven to be breaker trips due to combined AC and water heater loads. Switching to gas water heat in high AC load conditions remedies this issue.
We have also noticed a "cool breeze" at cable outlets. not sure how well PT seals their AC ducts. Nor whether this is an additional load which hampers the AC.
the breakers in the camper trip?? I have yet to see one ever tip in my trailer while on shore power or genny power...on a 30amp site I can run front 15k a/c , wh, fridge, rear fridge, tv, and even microwave without issue...on 50amp service I can cool the trailer to 70 degrees in direct sun with 100 plus ambient outside tx heat...?
anyway, are you saying the breakers on the TRAILER are tripping? and if so which ones?