Heating Curve

Heating slope dependent upon outdoor temperature (weather compensation)
At input (Tt), the setpoint temperature is read. The current outside temperature is read in at input (Ct). The parameter (S) is used to set the slope, and must be adapted to the respective heating system.

Table of Contents


Inputs

Abbreviation Summary Description Unit Value Range
Tt Target temperature Analogue Input - Target Temperature °
Ct Current temperature Analogue input current outdoor temperature °
Dis Disable Disables input (Tt) when On. (Child lock) - 0/1




Outputs

Abbreviation Summary Description Unit Value Range
Ft Flow temperature °
Iv Invalid values 1 when (Ft) would exceed (minFt) or (maxFt) - 0/1




Parameters

Abbreviation Summary Unit Value Range Default Value
S Slope - 0.05...2.5 1,3
O Offset - 0
minFt Minimum flow temperature ° 15
maxFt Maximum flow temperature ° 65




Curve

Image source: http://de.wikipedia.org/wiki/Heizkurve

This characteristic relates to a setpoint temperature (parameter T) of 20 ° C.

Legend:

a:Flow Temperature in ° C

b:Outdoor Temperature in ° C

c:Slope

d:Parallel Displacement