Viessmann B2HF, Installation And Service Instructions For Contractors

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■ Parameters are split into the following groups:
– "General"
– "Boiler"
– "DHW"
– "Heating circuit ..."
– "Solar"
■ Heating systems with one heating circuit without
mixer and one or 2 heating circuits with mixer:
In the following, the heating circuit without mixer is
designated
"Heating circuit 1" and the heating cir-
cuits with mixer "Heating circuit 2" ... (if installed).
If the heating circuits have been designated individu-
ally, the chosen designation appears.
Note
The display and setting of some parameters is
dependent on:
■ Heat generator
■ Connected accessories and the functions associated
with them
Tap the following buttons:
0 1. " "
0 2. "Service"
0 3. Enter password "viservice" .
0 4. Use to confirm.
0 5. "System configuration"
0 6. Select group.
0 7. / to select parameters.
0 8.
0 9. / for the required value according to the fol-
lowing tables.
10. , to accept the set value.
General
Note
Parameter values in bold are factory settings.
508.0 "UTC time zone"
Setting Explanations
Setting of the UTC time zone in which the appliance is
located.
2 The factory setting is UTC +1 h
–
24 to +24 Time difference adjustable from
–
12 h to +12 h in in-
crements of 0.5 h
528.0 "Set flow temperature for external demand"
Setting Explanations
Set flow temperature for external demand
70 Set flow temperature in the delivered condition 70 °C
20 to 82 Set flow temperature adjustable from 20 to 82 °C in
1 °C increments
896.0 "Display correction for outside temperature"
Setting Explanations
Correction of measured outside temperature
0 Correction in the delivered condition 0 K
-10 to + 10 Correction adjustable from -10 to + 10 K in 1 K incre-
ments
System configuration (parameters)
Calling up parameters
5593201
Parameter