Viessmann VITOCROSSAL 200 Instructions Manual page 15

Further details regarding the individual steps
CO test at the lower output (87 kW)
2
Commissioning, inspection, maintenance
(cont.)
3. If the CO content must be adjusted:
2
Turn adjusting screw A in small
increments until the CO
ches the specified range.
■ Turning clockwise
→ CO
content falls
2
■ Turning anti-clockwise
→ CO
content rises
2
Note
The adjusting screw has no end stop.
The starting position will be reached
again after four turns.
4. Record the actual value in the report
(on page 61).
1. Press "-" D until the service display
has decremented to "00" (lower out-
put).
2. Check the CO
2
pipe. For permissible CO
see the table on page 14.
content rea-
2
content at the flue
content,
2
15