Nibe F730 - Page 39

HEATING CURVE
heating curve
heating curve 1.9.1.1
system
outdoor temp. °C
flow temperature °C
Setting range: 0 - 15
Default value: 5
Menu
1.9.1
The prescribed heating curve for your house can be viewed in the menu heating
curve . The task of the heating curve is to give an even indoor temperature, re-
gardless of the outdoor temperature, and thereby energy efficient operation. It
is from this heating curve that the heat pump's control computer determines
the temperature of the water to the heating 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 temperature
drops/increases. A steeper slope
means a higher supply temperature
at a certain outdoor temperature.
20
0 10 0 -10 -20 -30 -40
30
40
50
60
70
80
Framledningstempereratur
(°C)
Utetemperatur
(°C)
Steeper curve slope
Supply temperature
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.
39Chapter 3 | F730 – at your serviceNIBE F730