Viessmann VITODENS 200-W Service Instructions Manual page 89

Repairs
(cont.)
3. Adjust value "9" with a or b;
confirm with d. The green ON
indicator flashes.
Access to the coding addresses of
the parameters is open.
4. Select the required coding address
with a or b (see the following
table) and change the value.
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 %
5. To exit, set the value of coding
address 11 9; then press L and
G simultaneously for approx. 1 s.
Coding has been terminated.
Note
If setting the parameters is not con-
cluded via coding address 11, the
system automatically terminates
the parameter change after approx.
25 min.
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 %.
Troubleshooting
5 to 10.
89