Viessmann Vitodens 333 Service Instructions Manual page 27

Further details regarding the individual steps
5. Record the actual value on
page 118 of commissioning/service
report.
6. Select the upper rated output.
Constant temperature control
unit:
K + d press simultaneously:
"1" is shown.
a press:
"2" is shown.
Weather compensated control
unit:
K + d press simultaneously:
"Relay test" is shown.
a press:
"Full load" is shown.
Initial start-up, inspection, maintenance
(cont.)
7. Check the CO content. Should the
2
actual value deviate by more than
1% from the above range, imple-
ment steps from page 26.
8. After testing, press d.
9. Enter actual values into the service
report.
27