BA_OTE 3+4_Endkunde_EN_V03_20170726.docx
Page 12 of 52
5.7
Adjusting the heating curve
For weather dependent heating controls, the current set flow temperature is deduced by
means of the current outside temperature. The heating curve is also used. The heating
curve is adjusted using 3 parameters. Heating starts only when the mean outside temper-
ature in the past 10 h (standard setting) is lower than the set heating limit (see Section 0)
Parameter
Description
03-001 Base point temperature
heating curve
The desired flow temperature at 20°C outside tem-
perature is set here.
03-012 Design outside tempera-
ture
The standardised lowest outside temperature in the
climate region is set here.
03-013 Design supply tempera-
ture (VLT)
The desired flow temperature at standard outside
temperature is set here.
Fig. 8: Heating curve with setting parameters
If required, when the room temperature is too low or too high, the user can make small
adjustments to the heating curve by means of the following table. The basic settings for
the heating curve are to be carried out by a specialist engineer.
As changes to settings - due to the inertia of the heating system - only affect the room
temperature time-delayed, it is recommended to only carry out one adjustment step
per day.
Outside tempera-
ture by day
Room temperature
too cold
too warm
+ 5 °C to +15°C
Set base point temperature
(03-
001) higher
Set base point temperature
lower
-15°C to + 5 °C
Set VLT at standard temperature
(03-013) higher
Set VLT at standard tempera-
ture
lower
20°C
VLT [°C]
TA [°C]
Heating
03-012 Design outside temperature
03-013 VLT at Standard
outside temperature
03-001 Base point temperature
heating curve
Heating limit
(s. section 5.11)
