Heating Curve Slope - Siemens RWF40.000A97 User Manual

5.5.1 Heating curve slope

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Slope «H» of the heating curve can be used to adjust the setpoint in response to the
outside temperature, as shown in the diagram. The common origin of the heating curves
is set at (20 °C / 20 °C). The effective range of the weather-dependent setpoint is
restricted by the setpoint limits «SPH» and «SPL».
Setpoint (°C)
oLHi
1)
SPH
HYS1
SPL
oLlo
1)
+20
+20 10
7865d01e/1102
¹) Only with RWF40.0X2B97
«HYS1» is the switch-on point for the burner, and «HYS3» is the switch-off point. As
already described, they act with the set shift relative to the weather-dependent setpoint.
ð
Section 5.2.1 «Modulating burner, floating output»
ð
Section 5.2.2 «Modulating burner, analog output»
CC1B7865en
5. Operating modes
H larger
0 -10
Outside temperature (°C)
05.12.2002
HYS3
H smaller
HVAC Products