Viessmann VITODENS 100-W Installation And Service Instructions Manual page 27

Further details regarding the individual steps
r r
Commissioning, inspection, maintenance
(cont.)
02. Start the boiler and check for
leaks.
Danger
Escaping gas leads to a risk
of explosion.
Check gas equipment for
tightness.
03. Turn rotary selector "tr" fully
clockwise for less than 2 s and then
back to the control range on the
right.
The display shows "SERV", "A"
and the boiler water temperature is
displayed.
04. Adjust the upper output:
Turn rotary selector "tr" to the
control range on the right until the
display shows 5 bars for the upper
output.
05. Test the CO content for upper out-
2
put.
The CO content must be between
2
7.0 and 10.5 %.
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