Viessmann B2TF Installation And Service Instructions Manual page 66

Gas condensing storage combi boiler with 7 inch colour touchscreen
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System configuration (parameters)
Heating circuit 1, Heating circuit 2, Heating...
426.4 "Duration for set flow temperature increase, heating circuit 2"
Setting
60 min
428.3 "Set flow temperature increased when switching from operation with reduced room temperature to
operation with standard/comfort room temperature, heating circuit 3"
Setting
0 K
428.4 "Duration for set flow temperature increase, heating circuit 3"
Setting
60 min
933.3 "Priority, DHW heating, heating circuit 1"
Setting
Off
DHW
933.6 "Operating mode of heating circuit 1"
Setting
Weather-compensated without room tem-
perature hook-up
Weather-compensated with room tempera-
ture hook-up
66
(cont.)
Explanations
Duration for set flow temperature increase
See also chapter "Function description"
60
Delivered condition 60 min
0 to 120
Temperature rise adjustable from 0 to 120 min
Explanations
Set flow temperature increased when changing from
operation at reduced room temperature to operation at
standard room temperature or comfort room tempera-
ture.
See also chapter "Function description"
0
Delivered condition increase 0 K
0 to 20
Temperature rise adjustable from 0 to 20 K
Explanations
Duration for set flow temperature increase
See also chapter "Function description"
60
Delivered condition 60 min
0 to 120
Temperature rise adjustable from 0 to 120 min
Explanations
Priority of DHW heating over the heating circuit
Note
If several heating circuits are connected, only adjust in
conjunction with low loss header.
0
Without DHW heating priority
1
With DHW heating priority
Explanations
Only adjust for systems with one heating circuit.
Heating mode:
4
Weather-compensated without room temperature in-
fluence
7
Weather-compensated with room temperature influ-
ence (see also parameter 933.7)

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