Viessmann VITOFLEX 300-UF Operating Instructions Manual page 48

Appendix
Buttons and symbols
These symbols are not always displayed, but appear
subject to the system version and the operating phase.
General buttons and symbols
Navigate up and down
(
Scroll to the left
Scroll to the right
Increase value
Decrease value
Date To set the date.
Time To set the time.
Buttons and symbols in the header
Menu Calling up the menu
The system is switched on.
You can switch the system off.
The system is switched off.
You can switch the system on.
No fault
To the fault and service/maintenance mes-
sages.
Fault
To the fault and service/maintenance mes-
sages.
Load Indicates the current operating phase
"Load", "OFF" or "Cleaning"
Buttons and symbols in the footer
Back to the default display
One level back
Overview To switch to the overview
Detailed screen To switch to the detailed screen
To the fault and service/maintenance
messages. A figure next to the sym-
bol indicates the number of pending
service tasks.
Grey = Currently no fault messages
Yellow = There is a warning
Red = There is a fault
Buttons and symbols in the default display
To the subsection pages for the boiler:
Fuel
―
Secondary air/primary air
―
Flame
―
Flow
―
Flue gas fan
―
48
Enter To confirm the entry.
Esc To terminate the entry.
To terminate the function.
All components are in operation
Displays the oxygen content in %
%
°C Displays the temperature in °C
s Seconds
Observer
You can switch to the "Boiler technician" user
group.
Boiler technician
You can switch to the "Observer" user group.
The system is in Automatic mode
Symbol colour: Green
The system is in Manual mode
Symbol colour: Orange
You can switch on manual mode.
System data
―
You can input the time/date, summer/winter
time or automatic mode.
To the subsection pages for the aux-
iliary systems
To the subsection pages for heat
distribution
Acknowledge To acknowledge the current fault
messages.
Reset To reset the interval of the selected
service/maintenance task.
To the Mode page
Fuel supply (green and animated)
Flue gas temperature
Displays the flue gas temperature in °C