Viessmann VITODENS 222-F Installation And Service Instructions Manual page 52

Commissioning, inspection, maintenance
Checking the combustion quality
Permissible CO or O
2
Operation with natural gas
Rated heating out- CO
put (kW)
Upper heating out-
put
11
7.3 - 10.5
19 7.5 - 10.5
25 7.5 - 10.5
32 7.3 - 10.0
Operation with LPG
■ CO content: 8.4 - 11.8 %
2
■ O content: 3.1 - 8.1 %
2
If the actual CO or O values lie outside their respec-
2 2
tive ranges, proceed as follows:
■ Check the balanced flue system for tightness; see
page 40.
■ Check ionisation electrode and connecting cable.
Note
During commissioning, the combustion controller car-
ries out an automatic calibration. Only measure the
emissions approx. 50 s after the burner has started.
1. Connect a flue gas analyser at flue gas port
the boiler flue connection.
2. Open the gas shut-off valve. Start the boiler. Cre-
ate a heat demand.
3. Adjust the lower heating output. See the following
chapter.
4. Check the CO content. If the actual value deviates
2
from the permissible ranges, implement steps lis-
ted above.
5. Enter the actual value into the report.
Setting the upper/lower heating output
Note
Ensure adequate heat transfer.
Tap the following buttons:
01. and OK – press simultaneously for approx. 4 s,
then release.
02. Use / to select "Actuator test".
52
content
2
content (%)
2
Lower heating out-
put
7.5 - 10.5
7.5 - 10.5
7.5 - 10.5
7.5 - 10.5
A
(cont.)
O content (%)
2
Upper heating out-
put
2.1 - 7.9
2.1 - 7.6
2.1 - 7.6
3.1 - 7.9
Fig. 45
on 6. Adjust the upper heating output. See the following
chapter.
7. Check the CO
2
from the permissible ranges by more than 1 %,
implement steps listed above.
8. Enter the actual value into the report.
9. Re-seal test port
Danger
Escaping flue gas can damage your health.
Check test port
03. OK
04. Use / to select the "Heating" group.
05. OK
06. Use / to select "Primary circuit pump,
speed".
Lower heating out-
put
2.1 - 7.6
2.1 - 7.6
2.1 - 7.6
2.1 - 7.6
A
content. If the actual value deviates
.
A
for leaks.
A