Viessmann Vitobloc 200 EM-20/39 Operating Instructions Manual page 30

Operation
5.7.8 User accounts operating level
Touch the user button in the upper operating bar of
the default screen to enter the user accounts
operating level:
User button
Fig. 22 User accounts operating screens
Nutzerkonto
Nutzer
The user accounts operating level is used to manage
user data.
User accounts can be used to assign passwords to
trained contractors or service personnel. These
individuals thus have access to control level 3, the
setting level.
In the user accounts operating screen, the user types
into the white text field. A keypad appears on the left
hand side of the display for entering the password.
Once the password is entered, it must be confirmed
by touching the ENTER button on the password
keypad.
The keypad then disappears and **** is displayed in
the white text field for the user.
After touching the OK button, a display will indicate
whether the password is correct or incorrect and a
further confirmation with the OK button is required.
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User account
User
Navigation options:
Back to default screen with
"All OK check marks"
Back to previous screen
Continue to list of fault messages
Input confirmation
Operating instructions VITOBLOC 200 EM-20/39