Viessmann Vitoladens 300-W Service Instructions For Contractors page 39

Code 2
Calling up code 2
Note
Codes that are irrelevant (due to the
heating system equipment level or the
setting of other codes) will not be dis-
played.
Press the following keys:
1. L + G simultaneously for
approx. 2 s.
2. d to confirm.
3. a/b for the required coding
address; the address
flashes.
4. d to confirm; the value
flashes.
Complete overview
The coding addresses are grouped according to the following function areas. The
respective function area is shown on the display.
The areas are scanned in the following sequence with a/b:
Function area
System design
Boiler/burner
DHW
General
Heating circuit A1 (heating circuit without
mixer)
Heating circuit with mixer M2
5. a/b for the selected value.
6. d to confirm; the display
briefly shows "accep-
ted" (for weather-com-
pensated control units);
the address flashes
again.
7. a/b for the selection of further
addresses.
8. L + G approx. 1 s simultane-
ously, to terminate cod-
ing 2.
Coding addresses
00
06 to 54
56 to 73
76 to 9F
A0 to Fb
A0 to Fb
Codes
39