Viessmann Vitodens 333 Service Instructions Manual page 89

Repairs
(cont.)
Coding
Coding in the delivered condition
Burner
7d:0 Air factor correction 0
82:0 Operation with natural
gas
83:15 Ignition start gas vo-
lume 15%
84:0 Start capacity correc-
tion 0%
85:0 Standard mode
Possible change
7d: 5 Note
to A change is only possible
7d:10 if manual calibration was
first carried out via cod-
ing address "85".
Air factor correction ad-
justable from
Each step represents an
air factor modification of
approx. 0.01.
82:1 Operation with LPG
83:0 Start gas volume adjusta-
to ble from 0 to 31%
83:31
84: 8 Start capacity correction
to adjustable from 16 to
84:7 +14%.
One step equals 2%.
85:1 Manual calibration of the
combustion control unit.
The red fault indicator
also flashes during cali-
bration. The process has
terminated when the red
indicator no longer
flashes (after approx. 1
min). The air factor can
then be manually altered
in coding address "7d".
Note
Heat must be drawn off
during manual calibra-
tion.
Troubleshooting
5 to 10.
89