Viessmann B0KA - Checking the External LPG Safety Valve (if Installed); Checking the Flue System for Unrestricted Flow and Leaks

49
A
Fig. 38
1.
Connect a flue gas analyser at flue gas port
A
on
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
2
content. If the actual value deviates
from the permissible ranges, implement steps lis-
ted above.
5. Enter the actual value into the report.
6. Adjust the upper heating output. See the following
chapter.
7. Check the CO
2
content. If the actual value deviates
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
A
.
Danger
Escaping flue gas can damage your health.
Check test port
A
for leaks.
Regulating to the upper/lower heating output
Note
Ensure adequate heat transfer.
Tap the following buttons:
1. and OK simultaneously for approx. 4 s, then
release.
2. Use / to select "b.6" for the upper/lower
heating output.
3. OK
4. Use / to set the value.
"OF" - off
"1" - Min. heating output
"2" - Max. heating output
5. OK
Burner is operating with correspondingly adjusted
heating output.
Checking the flue system for unrestricted flow and leaks
Checking the external LPG safety valve (if installed)
Commissioning, inspection, maintenance
Checking the combustion quality (cont.)
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