Viessmann Vitocrossal 200 Series Service Instructions Manual page 36

Burner control unit
Burner control unit VUC 310
Display
Status Service
Fig. 34 Example
Status
0
0
0
0
0
0
Info display/configuration display
The information display and the configuration display
are activated from the operating display. To activate
the menu selection, hold down S for longer than 2 s.
You can scroll through the menu points with / .
Press S again to select the relevant menu point. The
selected menu point is shown on the display under
Service.
If no other key is pressed within 20 s, this mode is
automatically terminated.
Information regarding current meter readings, such as
the start-up meter and permanent hours run meter, can
be called up via the information display.
Information:
Menu Description
point
1 Permanent meters for start-ups and hours
run
2 Resettable meters for start-ups and hours
run
3 Software version
4 Fault history for the last 10 fault codes
Example: to clear the hours run meter, press the fol-
lowing keys:
1. S longer than 2 s, " " flashes.
2. until "2" is shown under Service.
3. S "1" is displayed under Status.
36
(cont.)
Meaning
Service
7 Operation with flame
8 After flame post-purge
U Dwell program, no air pressure
C Dwell program, no gas pressure or mains undervoltage
9 Forced ventilation if no flame formation has been detected.
10 Safety shutdown due to flame tear-off
4. Scroll through Status until "6" is shown under
Status:
Status Description
1 Display of resettable start-up meter, 1
digit
2 Display of resettable start-up meter,
1000 digit
3 Menu point for deleting the start-up
meter reading
4 Display of resettable hours run meter,
1 digit
5 Display of resettable hours run meter,
1000 digit
6 Menu point for deleting the hours run
meter reading
5. S to confirm the deletion. If deleted successfully,
"1" is shown under Service; if it failed, "0" is
shown.
6. S to change to the operating display.
Menu points "5" and "6" are used to adjust configura-
tion settings of the burner control unit.
Note
Adjust the settings on the burner control unit in
standby only.