Glad to have you here with us. Congratulations on your new Keystone trailer. You're going to enjoy it.
If you haven't taken delivery of it yet get the dealer to show you how all the systems on it operate. Take good notes so you can reference them in the future. Even video it!
If you have taken delivery try to find someone near you that can show you tips for the trailer. The dealer where you bought it might know of some people that can help you. Most systems AC, Heat refer., tanks, etc are similar in most rvs.
Good luck and Happy Trails!!!