Viessmann Vitocrossal 200 Service Instructions Manual page 32

Initial start-up, inspection, maintenance
Burner control unit
Display and programming unit
Function
A display and programming unit is integrated into the burner control unit. The
display indicates the respective operating conditions, the service and parameter
conditions as well as all fault and error messages.
A Reset button
B Decimal point (will be shown if a
display 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 the reset button following a fault display.
The following displays are scrolled through automatically. In case of faults, see
the message codes on page 40.
32
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 35).
Standby
Start
Heat demand
System tests