Advanced Thermostat Operations
38 ENV-VST-C - Operation / Reference Guide
6. Use the navigation buttons to highlight Button Lockout.
7. Press Mode/Select to access the Button Lockout screen (FIG.40).
8. Use the navigation buttons to select Temperature Lock, and press Mode/Select to toggle the temperature lockout
setting between Yes and No.
9. Use the navigation buttons to select Temperature Lock Time Limit, and press Mode/Select activate it.
10. Press Mode/Select multiple times until you reach the time limit value you want.
11. Use the navigation buttons to select Temperature Lock Range Limit, and press Mode/Select activate it.
12. Press Mode/Select multiple times until you reach the range limit value you want.
Locking the Fan Settings
You can lock the fan settings on the thermostat so no one can change them. When you lock the fan settings, you must set
an amount of time for the settings to be locked. You can set the time limit to any amount of time between 0 and 60
minutes. After the time limit expires, the fan settings automatically unlock and can be changed again.
Perform the following steps to lock the fan 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. See the Entering the Security Code
on page30 for more information.
5. Use the navigation buttons to highlight More, and press Mode/Select to access the second User Preferences screen.
6. Use the navigation buttons to highlight Button Lockout.
7. Press Mode/Select to access the Button Lockout screen.
8. Use the navigation buttons to highlight More, and press Mode/Select to access the second Button Lockout screen
(FIG.41).
9. Use the navigation buttons to select Fan Lock, and press Mode/Select to toggle the fan lockout setting between Yes
and No.
10. Use the navigation buttons to select Fan Lock Time, and press Mode/Select activate it.
11. Press Mode/Select multiple times until you reach the fan lock time value you want.
Locking the Mode Settings
You can lock the mode settings on the thermostat so no one can change them. When you lock the mode settings, you
must set an amount of time for the settings to be locked. You can set the time limit to any amount of time between 0 and
60 minutes. After the time limit expires, the mode settings automatically unlock and can be changed again. Perform the
following steps to lock the mode 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.
FIG. 41 Button Lockout screen (2 of 2)