Viessmann VITOPEND 200 Installation And Service Instructions Manual page 109

Control functions
Reducing the heat‐up time
During the transition from operation
with reduced room temperature into
operation with standard room tem-
perature, the boiler water or flow tem-
perature will be raised in accordance
with the selected heating curve. The
boiler water or flow temperature can
be automatically increased.
Example for the settings in the delivered condition
A Start with standard room tempera-
ture
B Set boiler water or flow tempera-
ture in accordance with the
selected heating curve
(cont.)
The value and duration for the addi-
tional increase of the set boiler water
temperature or flow temperature can
be adjusted in the coding addresses
"FA" and "Fb".
C Set boiler water or flow tempera-
D Duration of operation with raised
Function description
ture in accordance with coding
address "FA":
50 °C + 20 % = 60 °C
boiler water or flow temperature in
accordance with coding address
"Fb":
60 min
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