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Advanced Thermostat Operations
34
ENV-VST-C - Operation / Reference Guide
Changing the Backlight Settings
Backlight settings allow adjustments to the thermostat display's backlight including the timeout before the backlight
turns off and the brightness of the backlight.
You can set the backlight timeout from any value between 10 seconds to 5 minutes in 10-second increments.
The default backlight timeout is 30 seconds.
You can set the backlight active brightness to High, Medium, and Low with a default value of Medium.
You can set the backlight inactive brightness to Dim or Off with a default value of Dim.
Perform the following steps to change the backlight settings:
1. From the Main screen, press Mode/Select to access the Thermostat Mode screen.
2. Use the navigation buttons to select Settings, and press Mode/Select. The Settings screen appears.
3. Use the navigation buttons to select Advanced Settings. Press Mode/Select to access the Security Code screen.
4. Enter the security code, and select Enter to access the User Preferences screen (FIG. 36). See the Entering the
Security Code on page 30 for more information.
5. Use the navigation buttons to highlight Backlight Timeout, and press Mode/Select to activate it.
6. Press Mode/Select to indicate a new backlight timeout setting. You can set any period of time between 10 seconds
and 5 minutes, in 10-second increments.
7. Use the navigation buttons to highlight Backlight Active Brightness, and press Mode/Select to activate it.
8. Press Mode/Select to toggle the Backlight Active Brightness setting between Low, Medium, and High.
9. Use the navigation buttons to highlight More, and press Mode/Select to access the second User Preferences screen
(see FIG. 37).
10. With Backlight Inactive Brightness highlighted, press Mode/Select to activate it.
11. Press Mode/Select to toggle the Backlight Inactive Brightness setting between Dim and Off.
Disabling the Filter Change Reminder
The thermostat filter change reminder monitors the number of calendar days since the feature was set. When the
operation time reaches the number of days you set on the Settings screen, the filter change reminder icon displays
alerting you to change the filter. (see the Changing the Filter Settings on page 28 for more information). This option is
enabled by default.
Perform the following steps to disable the filter change reminder:
1. From the Main screen, press Mode/Select to access the Thermostat Mode screen.
2. Use the navigation buttons to select Settings, and press Mode/Select. The Settings screen appears.
3. Use the navigation buttons to select Advanced Settings. Press Mode/Select to access the Security Code screen.
4. Enter the security code, and select Enter to access the User Preferences screen. See the Entering the Security Code
on page 30 for more information.
5. Use the navigation buttons to highlight More, and press Mode/Select to access the second User Preferences screen
(FIG. 37).
FIG. 37 User Preferences screen (2 of 3)