Emissions Test Mode - Viessmann VITODENS Operating Instructions Manual

Emissions test mode

Emissions test mode for testing flue gas with briefly
raised boiler water temperature.
Emissions test mode should only be activated by your
flue gas inspector during the annual inspection.
Extended menu
1.
2. "Test mode"
Should the current flow rate be insufficient (only for
boilers with flow meters), the message "Check flow
rate" appears and symbol
Ensure adequate heat transfer (e.g. open radiator
valves).
3. "Activate?" "Yes"
"Flue gas test ON"
Test mode
Boiler temperature
Terminate with
Fig. 31
The following functions are activated:
The burner is switched on (the display shows
■
Note
Burner start-up can be delayed, e.g. due to fuel oil
preheating.
The pumps are started.
■
The mixers remain set to the control function.
■
The temperature controller regulates the boiler
■
water temperature.
Ending emissions test mode
Automatically after 30 minutes
■
Or
Press OK.
■
rotates.
Ñ
62°C
OK
Note
The flue gas inspector can also activate emissions test
mode if the controls are locked out by your heating
contractor.
).
Emissions test mode
31