Checking The Co 2 Settings - Viessmann VITODENS 300 Service Instructions Manual

Initial start-up, inspection, maintenance
Further details regarding the individual steps
Checking the CO
Vitodens 300 is factory-set 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.
Note
The MatriX burner for Vitodens 300 is preset for the entire gas group. Therefore,
the burner requires no further setting or adjustment.
Subject to the Wobbe index, the CO
&
6.6 to 10.0 % for natural gas E
&
7.0 to 10.0 % for natural gas LL and
&
8.5 to 10.5 % 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.)
level at the boiler adap-
2
value ranges for the indivi-
2