Resetting Operating Parameters To Their Factory Setting; Manual Mode And Service Display - Viessmann Vitocrossal 200 CM2 400 Service Instructions Manual

Burner Control Unit
Burner Control Unit
Example: to set the maximum operational burner input
to between 0 and 100%, press the following buttons:
1. S longer than 2 seconds " " flashes.
2. until "6" is shown under Service.
Y
3. S "6" will be displayed under Status.
4. S "1" will be shown under Status and the current
value for the maximum operational output in % is
shown under Service.
Example: to set the motorized flue damper (flue gas
cascade) press the following buttons:
1. S longer than 2 seconds.
2. until "6" is shown under Service.
Y
3. S "6" will be displayed under Status and 1 under
Service.
4. until "7" is shown under Service.
Y
5. S "7" will be displayed under Status.
Resetting Operating Parameters to Factory Settings
To reset all operating parameters to factory settings,
press the following buttons:
1. S longer than 2 seconds " " flashes.
2. until "6" is shown under Service.
Y
3. S "6" will be displayed under Status.
4. until "0" is shown under Service.
Y

Manual Mode and Service Display

The burner must be running to call up the service display
and for manual mode. The service display shows the
current level of modulation in %.
Press the following keys:
1. /S together for longer than 2 seconds. The burner
B
changes to manual mode, a "P" will be shown under
Status and the current modulation level will flash
under Service.
2. for lower heating output, until "0" is shown under
B
Service.
50
(continued)
Vitocrossal 200, CM2 400, 500, 620 and 620 TX Service
5. for required maximum operational output.
Y B
/
Note: Observe the modulation range. See page 18.
6. S to confirm. If applied successfully, "1" will be
shown under Service, "0" if it failed.
7. S to change to the operating display.
6. for integration of flue damper to "1" will be
Y B
/
displayed under Service.
7. S to confirm. If applied successfully, "1" will be
shown under Service, "0" if it failed.
8. S to change to the operating display.
5. S "1" is shown under Status and "dEL" under Service.
6. S to confirm. If reset successfully, "1" will be shown
under Service, "0" if it failed.
7. S to change to the operating display.
8. R to reset unit and apply settings.
3. for upper heating output, until "100" is shown
Y
under Service.
4. /S together for longer than 2 seconds. The burner
B
returns to modulating mode.