Occasionally, it is difficult during spring and the fall to know which control component setting you should use! The temperatures fluctuate so much, and I have a hard time remembering to actually check the control unit, then during the Spring and the fall, you will find a correct swing in hot and cold temperatures.
During the morning, the temperature is likely pretty warm, but this might change depending on cold fronts and stuff rolling in.
During the night, temperatures are constantly cold. This might mean that you have to turn on the furnace while in the night and the central air conditioning while in the morning, depending on the morning, you might also have to use the furnace while in the morning, but some mornings might be perfect, meaning that you can turn your control component off completely. These hot and cold temperatures shift morning by morning, and it can be truly difficult to remember to turn your control component off or switch settings each time. Most often when I forget to adjust the control unit, I wake up in the middle of the night cold or realize that I am dripping with sweat really badly while in the morning. I know that there are control units that will do this whole process for you truly easily, but they are pricey, and in my opinion, those control units aren’t worth it. I feel that it might be easier to set a reminder on my cell phone to remind myself to adjust the control component at least once at night and once in the morning after I have checked the weather. Trying to figure out which control component setting you should use is a lot of work.