Viessmann VITODENS 200-W Service Instructions Manual page 125

Control functions
Raising the reduced room temperature
During operation with reduced room
temperature, the reduced set room tem-
perature can be automatically raised
subject to the outside temperature. The
temperature is raised in accordance with
the selected heating curve, but no higher
than the set standard room tempera-
ture.
Example using the settings in the delivered condition
90
80
70
60
50
40
30
A Heating curve for operation with
standard room temperature
(cont.)
10 5 0 -5 -10 -15
Outside temp. in °C
The outside temperature limits for the
start and end of the temperature raising
can be adjusted via coding addresses
"F8" and "F9".
A
B
-20
B Heating curve for operation with
reduced room temperature
Function description
125