26/57 CC1B7865en 05.12.2002 HVAC Products
5. Operating modes
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)
Outside temperature (°C)
HYS1
+20
+20
0
H smaller
-1010
SPL
SPH
H larger
HYS3
7865d01e/1102
oLHi
1)
oLlo
1)
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»
5.5.1 Heating curve slope
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