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Siemens Building Technologies
Basic Documentation RVP540 / RVP550
CE1P2488en
HVAC Products
Description of the enduser settings
18.10.2002
3.20 Heating curve slope
•
Constant room temperature in spite of outside temperature variations
•
Generation of a flow temperature with no external demand for heat
The controller generates the flow temperature setpoint as a function of the selected
heating curve.
Setting range
Resolution
Factory setting
1.0...40.0 0.2
15.0
By changing the setting, the slope of the heating curve will be increased or decreased
with the following effects:
Increase: The flow temperature will be
raised
when the outside temperature drops
Decrease: The flow temperature will be
raised to a lesser degree
when the outside
temperature drops
Using the heating curve, the controller generates the flow temperature setpoint, ena-
bling the system to maintain a constant room temperature even without using a room
temperature sensor.
The steeper the slope of the heating curve, the higher the flow temperature setpoint at
low outside temperatures.
TV Flow
temperature
TA
Composite outside temperature
3.21 Actual value of the room temperature
The actual value of the room temperature will automatically be displayed on this oper-
ating line.
Display
Unit
0...50 °C
°C
– – –
Sensor with open-circuit or no room sensor connected
Benefit
Description
Setting
Effect
The heating curve
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
20
00
D
07
TA
TV
Description
Setting
Special displays
