for a regular RV fridge, overnite is usually suggested but for a small popup one, 4-8 hours would be good.
remember, it's an absorption fridge, not one like in your house.
it uses chemicals to REMOVE heat, not inject cold air like your home fridge does.
so that's a longer process.
and Zoe the Wonder Dog(R.I.P.)
'07 Roo 23SS pushing an '07 Chevy Avalanche
Equalizer WDH and Prodigy BC