190
5790 733 - 07
Vitocrossal 300 CA3 Series 2.5 to 6.0 Installation/Service
Burner Control Unit
(continued)
Configurations:
Menu item
Description
5
Changeover from the operating display of the burner control unit phase to other process information
6
Configuration of control function operating parameters
Menu item “5“ is used to display the following process information:
Sub-menu Item
Process Information
Units/Scale
0
Phase
1
1
Boiler water temperature
°C
2
Secondary boiler water temperature
°C
3
Ionization current
I in 1/10
μ
A
4
Set speed
%
5
PWM actuating variable
%
6
Actual speed
RPM x10/min
7
Gas pressure switch 1, GDW1
0 or 1
8
Gas pressure switch 2, GDW2
0 or 1
9
Air pressure switch 1, LDW1
0 or 1
A
Gas valve 1
0 or 1
B
Gas valve 2
0 or 1
Example: to display the ionization current, press the
following buttons:
1.
S
longer than 2 seconds “ “
flashes.
2.
Y
until “5“ is shown under Service.
3.
S
“5“ will be displayed under Status
4.
Y
until “3“ is shown under Service.
5.
S
“3“ is shown under Status and during operation
the ionization current is shown under Service
(e.g. 30 = 3.0
μ
A).
6. To exit the process information menu, press and
hold
S
longer than 2 seconds “_“
flashes.
7.
Y
until “5“ is shown under Service.
8.
S
“5“ will be displayed under Status
9.
B
until “0“ is shown under Service.
10.
S
to change to the operating display.
Burner Control Unit
Menu item “6“ is used to change the following operating parameters:
Sub-menu
Item
Parameter
Units/Scale
Factory set
condition
1
Maximum operational input
% of rated input
100%
2
Gas type
0=NG (natural gas)
1=LPG (liquid propane gas)
0
3
Not assigned
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4
Maximum boiler water temperature
from 41°F to 260°F (5°C to 127°C)
203°F (95°C)
5
Integral threshold value of controller
In K min from 1 to 255
30 K min
6
Runtime optimization
0=minimum pause
1=integral method
1
7
Not assigned
--
--
8
Behavior in case of low gas level
0=delayed lockout fault shutdown
1= delayed safety shutdown
0
0
Reset all operating parameters to their factory
set condition.
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