Viessmann Vitodens 200 Service Instructions Manual page 35

Code 1
Calling up code 1
Note
On weather-compensated control
units, codes are displayed as plain
text.
Codes that are irrelevant due to the
system equipment level or the set-
ting of other codes will not be dis-
played.
Heating systems with one heating
circuit without mixer and one heat-
ing circuit with mixer:
Initially, the possible coding
addresses "A0" to "d4" for the heat-
ing circuit without mixer A1 are
scanned; then the coding addresses
for the heating circuit with mixer M2
are scanned.
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.
4. a/b for the selected value.
5. d to confirm; the display
briefly shows "accepted"
(weather-compensated
control unit); the address
flashes again.
6. a/b for the selection of further
addresses.
7. K + L press simultaneously for
approx. 1 s; code 1 is ter-
minated.
Coding
35