Viessmann Vitoladens 300-W Service Instructions For Contractors page 36

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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Codes
Code 1
Calling up code 1
Note
Codes are displayed as plain text. Codes
that are irrelevant (due to the heating
system equipment level or the setting of
other codes) will not be displayed.
Press the following keys:
1. K + L simultaneously for approx.
2 s.
2. a/b
for the required coding
address; the address
flashes
3. d
to confirm
36
4. a/b
for the selected value
5. d
to confirm; the display
briefly shows "accep-
ted" (weather-compensa-
ted control unit); the
address flashes again.
6. a/b
for the selection of further
addresses.
7. K + L approx. 1 s simultane-
ously, to terminate cod-
ing 1.

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