Checking The Flue System For Unrestricted Flow And Leaks; Checking The External Lpg Safety Valve (If Installed); Matching The Control Unit To The Heating System - Viessmann VITODENS 111-W Installation And Service Instructions Manual

Commissioning, inspection, maintenance
Checking the combustion quality
A
Fig. 38
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.
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.

Checking the flue system for unrestricted flow and leaks

Checking the external LPG safety valve (if installed)

Matching the control unit to the heating system

The control unit must be matched to the system equip-
ment level.
Set the parameters according to the accessories fitted:
58
(cont.)
4. Check the CO
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
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
on
A
Danger
Escaping flue gas can damage your health.
Check test port
3. OK
4. Use /
"OF" - off
"1" - Min. heating output
"2" - Max. heating output
5. OK
Burner is operating with correspondingly adjusted
heating output.
Accessory installation instructions
content. If the actual value deviates
2
content. If the actual value deviates
2
.
A
A for leaks.
to set the value.