interval time, "FILTER" lights up on the display (in Normal Mode) and remains lit until the user
clears the counter.
System Usage counts the hours that heating or cooling is on. When the System Usage counter
reaches the set interval time, "USAGE" lights up on the display (in Normal Mode) and remains lit
until the user clears the counter.
Setting Usage Interval Times
Filter and System Usage interval times can be set in the range of 0 to 5000 hours, in steps of 100
hours. (Setting either the Filter or System Usage interval time to zero disables the function.)
1. Press and hold USAGE for 2 seconds. "FILTER" will be lit, and the Filter Usage interval time
will start flashing.
2. Press ▲ or ▼ to scroll to the desired Filter Usage interval time. To select, press USAGE
once. Now, "USAGE" will appear on the display, and the System Usage interval time will start
flashing.
3. Press ▲ or ▼ to scroll to the desired System Usage interval time. To select, press
once.
Your selections have been saved and the thermostat has returned to Normal Mode.
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