Reducing The Heat-Up Time - Viessmann Vitoladens 300-W Installation And Service Instructions Manual

Control functions
(cont.)
Example using the settings in the delivered condition
90
80
70
60
50
40
30
Fig. 66
Heating curve for operation with standard room
A
temperature
Heating curve for operation with reduced room
B
temperature

Reducing the heat-up time

During the transition from operation with reduced room
temperature to operation with standard room tempera-
ture, the boiler water or flow temperature is raised in
accordance with the selected heating curve. The boiler
water or flow temperature increase can be automati-
cally raised.
10 5 0 -5 -10
Outside temperature in °C
A
B
-15 -20
The value and duration for the additional increase of
the set boiler water or flow temperature is selected in
coding addresses "FA" and "Fb" in the "Heating cir-
cuit" group.
Function description
89