Checking The Co 2 Content - Viessmann VITOCROSSAL 200 Service Instructions Manual

Commissioning, inspection, maintenance
Further details regarding the individual steps
Checking the CO
Preparing the test
C
D
E
F
CO test at the upper output
2
C
D
E
F
14
content
2
1. Open the gas shut-off valve.
2. Start the burner.
3. Press "S" E and "-" D simultane-
ously.
Display C will then show the follow-
ing:
■ under status: "d" (= control stop)
■ under service: Modulation level in
% ("00" = 100% = upper output,
"0" = 0% = lower output)
1. Press "+" F until the service display
has incremented to "00" (= 100 %).
2. Note
The CO content for all natural gases
2
must be between 7.5 and 10.5 %.
Check the CO
2
pipe.
Burner out-
put in kW
404
503
628
(cont.)
content at the flue
Permissible CO
content in %
8.6 ± 0.3
8.6 ± 0.3
8.6 ± 0.3
2