Heating Curve - Siemens Synco700 RMK770 Documentation Handbook

p = 50%
Window
Settings

Heating curve

Curvepoints
Radiator exponent
160/226
Building Technologies
HVAC Products
The controller is supplied with the proportion of windows set to 50 % so that the com-
posite outside temperature represents the mean value of actual and filtered outside
temperature.
It is calculated as follows:
Toeff = (0.5 × To) + (0.5 × Tofil)
To
25
20
ToStrDmp
15
10
5
0
Main menu > Settings > Heating circuit > Space heating
Operating line
Building time constant.
Main menu > Heating circuit > Heating curve
Operating line
Proportion of windows
10.6.2 Heating curve
)
The heating curve is defined by 2 curvepoints:
: At the design temperature
1
• Outside temperature ToDe
• Flow temperature SpTFlDe
: At the theoretical heating limit
2
• Outside temperature ToHi
• Flow temperature SpTFlHi
TFl
B
SpTFlDe
D
SpTFlHi
SpTRN
TODe
A
The nonlinear heat transmission is considered by the radiator exponent nH. The follow-
ing table gives an overview of the heating systems normally used:
Boiler Sequence Controller RMK770
10 Heating circuit control
To
Range
0...200 h
Range
0...100 %
A
B
C
D
1
sHC
Toeff
Factory setting
20 h
Factory setting
50 %
2
TOHi
TOeff
C
t
CE1P3132en
01.03.2005