Viessmann Vitocrossal 200 Service Instructions For Contractors page 32

Burner control unit
Burner control unit VUC 310
Status Service
Fig. 40
Status Service
Status Service
Fig. 41
Status Service
Fig. 42
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 items with / . Press
S again to select the relevant menu point. The selec-
ted 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.
32
(cont.)
Flame stabilisation
Operation with flame
Post-purge reheating
Maintenance program, no
air pressure
Status Service
Fig. 43
Status Service
Fig. 44
Status Service
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
Only make adjustments when the burner control unit is
on standby.
Maintenance program, no
gas pressure or mains un-
dervoltage
Forced ventilation if no
flame formation has been
detected.
Safety shutdown due to
loss of flame