Viessmann Vitodens 333-F Service Instructions Manual page 98

Troubleshooting
Repairs
(cont.)
Calling up coding addresses
1. Press L and G simultaneously
for approx. 2 s; confirm with d.
2. Select required coding address
"11" with a or b; the address
flashes; confirm with d; the value
flashes.
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.
Coding
Coding in the delivered condition
Burner
7d:0 Air factor correction 0
82:0 Operation with natural
gas
83:0 Correction, ignition start
gas volume 0%
84:0 Start capacity correc-
tion 0 %
98
4. Select the required coding address
with a or b (see the following
table) and change the value.
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
Note
7d:–5
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 – 5 to 10.
Each step represents an
air factor modification of
approx. 0.01.
82:1 Operation with LPG
83:–10 Correction, ignition gas
volume adjustable from –
to
83:+20 10 to +20%.
84:–8 Start capacity correction
to adjustable from -16 to
84:7 +14 %.
One step equals 2 %.