Viessmann VITODENS 300 Service Instructions Manual page 92

Troubleshooting
Repairs
(cont.)
Coding in the delivered condition
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
92
Possible change
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
lamp no longer flashes
(after approx. 1 min). The
air factor can then be
manually altered in cod-
ing address 7d.
Note
Heat must be drawn off
during manual calibra-
tion.