Viessmann B2UA, Installation And Service Instructions Manual

Page: 97 / 200

97
■ All codes are accessible in coding
level 2.
■ Codes that have not been assigned a
function due to the heating system
equipment level or the setting of other
codes are not displayed.
■ The heating circuit without mixer is
labelled "Heating circuit 1" and the
heating circuits with mixer are labelled
"Heating circuit 2" or "Heating cir-
cuit 3" .
If the heating circuits were individually
named, the selected name and
"HC1" , "HC2" or "HC3" appears
instead.
1. Press OK and
å
simultaneously
for approx. 4 s.
2. Press OK and simultaneously for
approx. 4 s.
3. "Coding level 2"
4. Select the required coding address
group:
■
"General"
■ "Boiler"
■ "DHW"
■ "Solar"
■ "Heating circuit 1/2/3"
■ "All codes std device"
In this group, all coding addresses
from coding level 1 (except coding
addresses from the
"Solar" group)
are displayed in ascending order.
5. Select coding address.
6. Select value according to the follow-
ing tables and confirm with
OK .
7. If you want to reset all codes to
their delivered condition:
Select "Standard setting" in "Cod-
ing level 2" .
Note
This also resets codes at coding level
1.
"General"
Select group "General" (see page 97).
Code 2
Calling up coding level 2
5773 238 GB
Service