Viessmann VITOCAL 100-AW Installation, Service And Operating Instruction page 57

Vitocal 100-AW AM2V Installation, Service and Operating
Service/Configuration Menu
Service:
This menu accesses the actuator test function for
the IDU. When prompted for an access code, turn
the navigation dial to the required code and confirm
the code by pressing the dial. If you want to exit
from the code request screen, hold the navigation
dial or wait until automatic return to main function
screen.
Code: 45
Scroll through the menu with the navigation dial
and press the navigation dial to select. When
complete select 'End' to return to the Service
menu.
Operating
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