question climate controls

[Chuck Linn]

I have a new to me 2008 revolution 40m. It has a Sparten chassis and the books shows climate control panel 3 turn knobs one for fan speed one for air direction and one for temp comrols. There are 2 push buttons(on/off) between these one has a snow flake and the other has a lighted bar on top could any one tell me what they do. The dealer since I didn't buy it locally wants $135 an hour for a tech to explain them to me. I am hopeiing to get some help here

[LA-HODAG]

The button with the snowflake turns on the a/c compressor and the other button is turns on the re-circulate function if you want to keep out fresh air from outside. Pretty much like in a car.