the heating curve and read off how the supply temperature changes at
different outdoor temperatures here. If there is access to cooling the same
settings can be made for the cooling curve.
Curve coefficient
The slopes of the heating /cooling
curves indicate how many degrees
the supply temperature is to be in-
creased/reduced when the outdoor
temperature drops/increases. A
steeper slope means a higher supply
temperature for heating or a lower
supply temperature for cooling 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 curve is set when the heating installation is installed, but may need
adjusting later. Normally, the curve will not need further adjustment.
Caution
When making fine adjustments of the indoor temperature, the curve
must be offset up or down instead, this is done in menu 1.1 temperat-
ure .
Curve offset
An offset of the curve means that
the supply temperature changes by
the same amount 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.