Locking Out The Controls - Viessmann VITODENS Operating Instructions Manual

Locking out the controls

The controls can be locked out in 2 stages via the dis-
play:
All functions in the standard menu are operable.
■
Emissions test mode can be enabled.
All other functions are locked.
■ All functions are locked. Emissions test mode can be
enabled.
Tap the following on-screen buttons:
1. "Menu"
Unlocking the controls
Tap the following on-screen buttons:
1. Tap anywhere on the screen.
"Operation disabled" is displayed.
2. Tap "Unlock".
The entry field and keyboard are displayed.
Changing the password for the control lockout function
Tap the following on-screen buttons:
1. "Menu"
2. "Settings"
3. "Change passwords"
4. Enter the old password.
Setting the display backlighting
Tap the following on-screen buttons:
1. "Menu"
2. "Settings"
3. "Screen"
Signal tone for display operation (button tone)
In the delivered condition, a signal tone is enabled
which sounds each time an on-screen button is tap-
ped. This signal tone can be disabled.
Tap the following on-screen buttons:
1. "Menu"
2. "Settings"
3. "Disable operation"
4. "Only default display operational" or "Lock
everything"
5. Enter the password "vitotronic".
You can change the password (see page 31).
6. OK to confirm
3. Enter password "vitotronic" or the password you
have assigned.
4. OK to confirm
5. Enter the new password.
Note
You will be asked to enter the new password again
to confirm.
6. OK to confirm
4. "Brightness, standby" or "Brightness, opera-
tion"
5. / for the required value
6. OK to confirm
2. "Settings"
3. "Buzzer"
4. "ON" or "OFF" for the required function.
Further adjustments
31