Checking The Co 2 Settings - Viessmann VITODENs 200 Installation Instructions Manual

Initial start-up, inspection, maintenance
Further details regarding the individual steps
Checking the CO
Vitodens 200 is set up in the factory for natural gas E, and can be converted to
natural gas LL or LPG P using a conversion kit.
During commissioning or maintenance, check the CO
tor.
Subject to the Wobbe index, the CO
& 7.4 to 10.5 % for natural gas E
&
7.8 to 10.5 % for natural gas LL and
&
8.5 to 11.0 % for LPG P.
Compare the actual CO
dual gas groups (check the gas group with your mains gas or LPG supplier).
If the actual CO value deviates by more than 1 % for natural gas or 0.5 % for
2
LPG, proceed as follows:
&
Check whether the correct gas restrictor has been installed.
& Check the balanced flue system for soundness, see page 19.
16
settings
2
content fluctuates between
2
value with the above CO
2
(cont.)
8. Danger
Gas escaping from the test
nipple leads to a risk of
explosion.
Check for gas leaks.
Open the gas shut-off valve, start
up the boiler and check soundness
of test nipple A.
level at the boiler adap-
2
value ranges for the indivi-
2