Viessmann VITODENS 200-W Service Instructions Manual page 131

Control functions
Reducing the heat-up time
During the transition from operation with
reduced room temperature to operation
with standard room temperature, the
boiler water or flow temperature will be
raised in accordance with the selected
heating curve. The boiler water or flow
temperature can be automatically
increased.
Example using the settings in the delivered condition
C
60
D
B
50
40
30 30
20
10
A
0
6 00
Time in h
A Start of operation with standard
room temperature
B Set boiler water or flow temperature
in accordance with the selected
heating curve
C Set boiler water or flow temperature
in accordance with coding address
"FA":
50 °C + 20 % = 60 °C
(cont.)
The value and duration of the additional
increase of the set boiler water or flow
temperature can be adjusted in coding
addresses "FA" and "Fb".
7 00 8 00 9
D Duration of operation with raised set
Function description
00
boiler water or flow temperature in
accordance with coding address
"Fb":
60 min
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