The Fan Control window displays the current fan power level. Pressing the up or down
arrows will manually increase or decrease the fan speed in 1% increments. You can also
select a predefined power level using the % buttons to the right of the arrows.
The Temperature Control window has three tabs. The first, Temperatures, shows the
current ambient temperature as well as the current temperatures of the primary and
secondary mirrors. The mode can be changed from degrees F to degrees C.
The Heaters tab allows you to manually set the power for each heater. Heater 1 controls
the primary mirror heater. Heater 2 controls the secondary mirror heater. The up and
down arrows will increase or decrease the heater power in 1% increments. Preset heater
powers can be set using the % buttons to the right of the arrows.