There are 2 thermostats, one across from the pantry near the front door which controls the main floor and the other is in the upstairs master bedroom as you walk in which controls the upstairs.
To adjust the temperature just press the up or down arrows as needed. When you are finished adjusting, it will ask you how long you want to maintain that temperature. You can select 2 or 4 hours or indefinite.
Please think about it as you leave for the day and don’t keep the a/c on 72 when you are not around. Thanks!