Coding; Code 1 - Viessmann Vitodens 300 Service Instructions Manual

Coding

Code 1

Call up code 1
1. Press K and L simultaneously
for approx. 2 seconds.
2. Select the required coding address
with a or b; the address flashes.
Confirm with d; the value flashes.
Note
Codes are displayed in plain text
on weather-compensated control
units. Codes, which are not rele-
vant because of the equipment
level of your heating system or
because of settings of other codes,
will not be displayed.
38
3. Change this value with a and b;
confirm with d. The display briefly
shows "adopted", then the address
flashes again. Select additional
addresses (if required) with a
or b.
4. Press K and L simultaneously
for approx. 1 second.