Advanced Thermostat Operations
30 ENV-VST-C - Operation / Reference Guide
3. Use the navigation buttons to select Advanced Setup.
4. Press Mode/Select to access the Security Code screen (FIG.30).
Entering the Security Code
You must enter a security code to access the advanced setup options on the thermostat. The default security code is 1988.
See the Changing the Security Code on page 31 for information on changing the security code. Perform the following
steps to enter the security code.
1. Use the navigation buttons to scroll through the numbers until you reach the first digit in the code, and press Mode/
Select to move to the next digit in the code.
2. Repeat the previous step until you have entered the full four-digit code.
3. Press Mode/Select while Enter is selected. If the code is correct, the User Preferences screen appears (FIG.36).
Change Security Code Screen
The Change Security Code screen (FIG.33) enables you to change the security code for the thermostat. Without entering
a security code, the user cannot have access to advanced setup features or make changes to the user preferences. The
default security code is 1988.
Pressing the Up/Down arrow buttons increases or decreases the numeric value in the highlighted box.
Pressing the Mode/Select button highlights the next box in the sequence or highlights Enter if pressed while
the fourth box is highlighted.
Use Up/Down arrow buttons to move between Enter and Cancel.
Press the Mode/Select button while Enter is highlighted to accept the new security code and open the User
Preferences screen.
Press the Mode/Select button while Cancel is highlighted to return to the User Preferences screen.
FIG. 32 Settings screen
FIG. 33 Change Security Code screen