Viessmann Vitoplus 300 Service Instructions Manual page 15

Wall mounted oil fired condensing boiler for the combustion of low sulphur fuel oil din 51603-el-1 with integral boiler control unit
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Further details regarding the individual steps
Initial start-up, inspection, maintenance
(cont.)
6. Confirm the set value with d.
Note
The control unit changes automati-
cally to burner stage 2. The display
shows "Speed stage 1 + 2 " and a
value between 1 and 255.
7. Repeat steps 4 and 5 for burner
stage 2.
8. Check the set values.
9. Seal test connector A again with
the previously removed plug.
Note
Do not seal the connector next to
test connector A.
15

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