DCN: 140-02034-03 Page 13
Maint Service: Go to the Maintenance Service Screen. Sets/resets the maintenance
timer/alert.
The Maintenance Service screen will show the accumulated Heat and Cool runtime hours
as well as the Service Interval that will be used to trigger a Maintenance alert.
Service interval is 3000 hours. Use the +/- buttons to adjust service interval.
Press reset to clear the service alert and reset the runtimes to zero.
When the combined HEAT and COOL Runtime hours equals the Service Interval hours,
the Red LED will flash along with a “Maint” message to remind you your HVAC system
may require periodic maintenance. Pressing the Menu button will take you to the Filter
Service screen. The Reset button can be pressed and the HEAT and COOL Runtime
values will be reset to zero.
Screen Timeout: Minimized Screen. Set the display timeout time in seconds. Options
are 0 or 15 to 120 (default set to 0 seconds). This is the time before the main thermostat
screen reverts to the minimized temperature only display screen, after the last button
press. The Minimized Screen feature is disabled by setting this time to “0”.
! Any button press will restore the main thermostat screen display.
F/C Settings: Go to the F/C Settings Screen. Select which temperature display mode
you desire, Fahrenheit (F) or Celsius (C).
Sensor Calibration: Go to the Sensor Calibration Screen. This screen allows you to
adjust the calibration of the internal sensor. You can change the temperature calibration
by +/- 7 degrees using the + and – buttons
When the Sensor Calibration screen is selected it will show the current temperature
calibration and the current number of degrees of offset being applied (typically 0). If the
sensor’s actual temp is (74) with 0 degrees of offset and you want it to show 75, then press
“+” to add 1 deg and it will show (75).
! You can refresh the info on this screen by pressing the right hand (blank) button.
When you close this screen, it may take a few seconds for the temperature displayed on
the main thermostat screen to update to the new temperature selected.
Backlite/Display: Go to the Backlite/Display settings screen. This menu allows you to set
the backlight timeout period and adjust the display contrast.
Backlite Timeout: Sets the time from last button press that the backlite will timeout and
turn off. The timeout value is adjustable from 0 or 20 to 120 seconds. If set to “0”, the
Backlite will always be ON. If set in the range of 20 to 120 seconds, the Backlite will turn
OFF after the selected time expires.
Contrast: Sets the contrast level of the LCD display, adjustable from 0 to 20. Use this
control to adjust the darkness of the display. To light and the display looks faded, too dark
and dark lines will appear in the display. Typically 10-15 is a good setting. Adjust as
needed.
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