system, supply temperature, and therefore the indoor temperature. Select
the heating curve and read off how the supply temperature changes at
different outdoor temperatures here.
Curve coefficient
The slope of the heating curve indic-
ates how many degrees the supply
temperature is to be increased/re-
duced when the outdoor temperat-
ure drops/increases. A steeper slope
means a higher supply temperature
at a certain outdoor temperature.
The optimum slope depends on the climate conditions in your location, if
the house has radiators or under floor heating and how well insulated the
house is.
The heating curve is set when the heating installation is installed, but may
need adjusting later. Thereafter the heating curve should not need further
adjustment.
Caution
In the event of making fine adjustments for the indoor temperature,
the heat curve must be offset up or down instead, this is done in menu
1.1 temperature .
Curve offset
An offset of the heating curve
means that the supply temperature
changes as much for all the outdoor
temperatures, e.g. that a curve off-
set of +2 steps increases the supply
temperature by 5 C at all outdoor
temperatures.