4 Special Features
Swing
Swing setting determines the temperature difference from 
ON to OFF that the thermostat will command the HVAC system to run.
With the MODE switch in HEAT or COOL, press the MENU button.
Touch the SWING icon and the current setting of temp
swing is shown on the display (default at 3 ). 
To change the swing, touch the left or right arrows.
The furnace will cycle more at the lower numbers as it tries to keep your set point constant.
Filter
The 8030C has a feature that keeps track of actual furnace run time and reminds you to periodically replace your system's air filter.
Press MENU (from HOME screen) and touch FILTER icon.
This will display your accumulated filter run time.
To input a new filter life time, touch the FILTER icon for 3 seconds.
Input the lifetime hours for your new filter.
To zero the filter timer for a new filter, touch the accumulated time display. 
To leave the filter display, touchHOME
4 Spec. Featr. cont.
Lock
Allows you to to prevent any changes in custom settings. 
To lock, touch the LOCK icon on the MENU screen for 5 sec.
To unlock, Touch the locked icon for 5 sec.
Low Battery
When the batteries are low, the battery icon will come on and flash.
The two AA Batteries in the unit need to be replaced. In some installations your heater system will stop functioning when the thermostat loses power. Replace batteries as soon as you see this warning. The thermostat programs will remain for 30 seconds while the batteries are changed.
Do not take longer than 30 sec to change the batteries in your unit or you will lose all custom settings and all programming. Only the Energy- StarTM program will remain. Once the batteries are replaced, the system will return to normal in 2 seconds.
12/24 hour
The thermostat can display time in 12 or 24 hour formats. At the HOME screen touch the time display to toggle from 12 to 24 hr display.
PG 12