Viessmann VITOCROSSAL 200 Service Instructions Manual page 33

Burner control unit
Display and programming unit
Function
A display and programming unit is integrated into the burner control unit. The display
indicates the relevant operating conditions, the service and parameter conditions as
well as all fault and error messages.
Status Service
A Reset button
B Decimal point (will be shown if a dis-
play value exceeds 99)
C Memory LED (will be displayed if a
value is saved)
D Selection key
Operating display
In standard mode, the display shows the current operating conditions. The same
applies after pressing reset following a fault display.
The following displays are scrolled through automatically. In the case of faults, see
the message codes on page 40.
Status Service
Status Service
The display comprises three elements of
seven segments each. Four keys enable
adjustments to be made at the different
operating levels.
A DIP switch at the back of the display
and programming unit enables burner
parameters to be configured (for set-
tings, see page 36).
Standby
Start
Heat demand
System tests
33