Viessmann MatriX Service Instructions For Contractors page 22

Burner control unit
Burner control unit VUC 310
5. S to confirm the deletion. If deleted successfully,
"1" will be shown under Service; if not, "0" will
appear.
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.
Menu point "5" is used to display the following process information:
Submenu 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 – displaying the ionisation current:
1. S for 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 heating output
0 Reset all operating parameters to their de-
livered condition
Example: set the maximum heating output of the
burner to 70 to 100 % by pressing the following keys:
1. S for longer than 2 s,
flashes.
2. until "6" is shown under Service.
3. S "6" will be displayed under Status.
Not available for all boiler types, check at control unit if required.
*1
22
(cont.)
Configurations:
Menu
point
5
6
*1
*1
*1
*1
3. S "5" will be displayed under Status.
4.
5. S "3" is shown under Status and during operation
4. S
5. /
6. S
7. S
Description
Changeover from the operating display of
the burner control unit phase to other proc-
ess information
Configuration of control function operating
parameters
Units/scale
1
C
º
C
º
I in 1/10 A
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.
the ionisation current is shown under Service
(e.g. 30 = 3.0 A).
µ
Unit/scale
% of rated heating output
"1" will be 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 applied successfully, "1" will be
shown under Service; if not, "0" will appear.
To change to the operating display.