Viessmann Vitodens 200 Service Instructions Manual page 22

Commissioning, inspection, maintenance
Further details regarding the individual steps
Weather-compensated control
unit:
K + d press simultaneously:
"Relay test" and then
"Base load" is shown.
4. Check the CO content. Should the
2
actual value deviate by more than
1% from the above range, imple-
ment the steps from page 21.
5. Enter actual values into the service
report.
6. Adjust the upper output.
Constant temperature control
unit:
a press:
"2" is shown.
22
(cont.)
Weather-compensated control
unit:
a press:
"Full load" is shown.
7. Check the CO content. Should the
2
actual value deviate by more than
1% from the above range, imple-
ment the steps from page 21.
8. After testing, press d.
9. Enter actual values into the service
report.