Viessmann Vitocrossal 200 Service Instructions For Contractors page 36

Burner control unit
Burner control unit VUC 310
Configurations:
Menu Description
point
5 Changeover from the operating display of
the burner control unit phase to other proc-
ess information
6 Configuration of control function operating
parameters
Menu point "5" is used to display the following process information:
Sub-menu point Process information
0 Phase
1
Boiler water temperature
2 Flue gas temperature
3 Ionisation current
4 Set speed
5 PWM manipulated variable
6 Actual speed
7 Gas pressure switch 1
8 Gas pressure switch 2
9 Air pressure switch
A Gas valve 1
B Gas valve 2
Example: To display the ionisation current, press the
following keys:
1. S longer than 2 s, " " flashes.
2. until "5" is shown under Service.
Menu point "6" is used to change the following operating parameters:
Sub-menu point Parameter
1 Maximum operational output
0 Reset all operating parameters to their delivered condi-
tion.
Example: to set the maximum operational output of the
burner to between 70 and 100 %, press the following
keys:
1. S longer than 2 s, " " flashes.
2. until "6" is shown under Service.
3. S "6" is displayed under Status.
Not available for all boiler types, check at control unit if required.
*1
36
(cont.)
*1
*1
*1
*1
3. S "5" is displayed under Status.
4.
5. S "3" is shown under Status; under Service the ion-
4. S
5. /
6. S
7. S
Units/scale
1
30
°C
°C
I in 1/10
μ
%
%
n in 10/min
0 or 1
0 or 1
0 or 1
0 or 1
0 or 1
until "3" is shown under Service.
isation current is shown during operation (e.g.
30 = 3.0 A).
µ
Units/scale
% of rated output
"1" is shown under Status and the current value
for the maximum operational output in % is
shown under Service.
for required maximum operational output.
to confirm. If adopted successfully, "1" appears
under Service; if it failed, "0" will appear.
to change to the operating display.
A