Locking The Controls - Viessmann VITODENS Operating Instructions Manual

Locking the controls

You can lock the controls via the display in 2 steps:
■ All functions in the standard menu are operable. The
emissions test mode can be enabled.
All other functions are disabled.
■ All functions are disabled. The emissions test mode
can be enabled.
Tap the following on-screen buttons:
1. "Menu"/" "
2. "Settings"
Cancelling control lock
Tap the following on-screen buttons:
1. Tap the display anywhere.
"Operation disabled" appears.
2. Tap on "Unlock".
An entry field and keyboard appear.
Changing the password for the "Disable operation" function
Tap the following on-screen buttons:
1. "Menu"/" "
2. "Settings"
3. "Change passwords"
4. Enter the current password.
Setting the display illumination
Tap the following on-screen buttons:
1. "Menu"/" "
2. "Settings"
3. "Screen"/"Brightness, display"
Signal tone for display (key tone)
Under factory settings, a signal tone is activated to
produce a sound every time a button is tapped. You
can turn this signal tone off.
Tap the following on-screen buttons:
1. "Menu"/" "
3. "Disable operation"
4. "Only default display operational" or "Lock
everything"
5. Enter the password "vitotronic".
This password can be changed (see page 41).
6. OK/ to confirm
3. Enter the password "vitotronic" or the password
you have specified.
4. OK to confirm
5. Enter the new password.
Note
You will not be required to confirm the new pass-
word.
6. OK/ to confirm
4. "Brightness, standby" or "Brightness, opera-
tion"
5. / for the required value
6. OK/ to confirm
2. "Settings"
3. "Buzzer"/"Sound ON/OFF"
4. "ON" or "OFF" for the required function.
5. "OK"/ to confirm.
Further adjustments
41