Welcome to the forum. You will find that the information provided here is considerably more useful than the generic manual provided with an RV. It is unlikely you will have a question or problem that has not been encountered and solved by a forum member.
As this is a recent purchase, if you did not get a build sheet ask your dealer for ti. It is delivered by FR with every new trailer. it lists make, model and serial # of every installed appliance. Make a copy and keep one at home ane one in the RV. This way when you need help, service or parts, you can provide the information needed to fix it. If the dealer will not provide it, you can open the service panels of all the appliances and create your won. Sooner or later, you will need that info.
2015 Freedom Express 248RBS
TV 2015 Silverado HD2500 Duramax
TST Tire Monitors
Honda 2000I + Companion
2 65W solar panels