Viessmann VITOCROSSAL 200 Instructions Manual page 14

Commissioning, inspection, maintenance
Further details regarding the individual steps
Checking the CO
Preparing the test
CO test at the upper output (87 kW)
2
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: Level of modulation
in % ("00." = 100 % = upper output
"00" = 0 % = lower output)
1. Press "+" F until the service display
has incremented to "00." (= 100 %).
2. Check the CO
2
pipe.
Burner output
in kW
87
Note
The unconnected end of the hose is
open in open flue operation. For bal-
anced flue operation, it is pushed
onto the inlet adaptor.
(cont.)
content at the flue
Permissible CO
content in %
9.0 (±0.3)
2