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Siemens Building Technologies Basic Documentation RVA63.242, RVA53.242 CE1P2373E
Landis & Staefa Division Description of end-user settings 26.03.2001
3.20 Heating curve slope heating circuit 1 (S1)
Constant room temperature in spite of outside temperature variations.
The controller generates the flow temperature setpoint only for heating circuit 1, based
on the selected heating curve.
Setting range Unit Factory setting
– – : – / 2.5...40.0 Increment 15.0
By changing the setting, the slope of the heating curve will be increased or decreased.
Entry:
– – : – All functions of heating circuit 1 are deactivated Frost protection for the
building and the plant will not be active (frost protection for the boiler and
d.h.w. remains active).
2,5...40,0 All functions of heating circuit 1 will be activated
Increase: The flow temperature will be raised when the outside temperature drops
Decrease: The flow temperature will be raised less when the outside temperature
drops
This setting also has an effect on the generation of the type of plant displayed on line
53. The switching on and off of the heating circuit through the setting – : – – or a value
changes the plant configuration accordingly.
Using the heating curve, the controller generates the flow temperature setpoint,
enabling the system to maintain a constant room temperature even without using a
room sensor.
The steeper the slope of the heating curve, the higher the flow temperature setpoint at
low outside temperatures.
Comfort is considerably enhanced when using a room sensor.
20 10 0 -10 -20
-30
90
80
70
60
50
40
30
°C
°C
40 35
30
27,5 25 22,5
20
17,5
15
12,5
10
7,5
5
2,5
100
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