Samson TROVIS 5573 Mounting And Operating Instructions page 48

Functions of the heating circuit
Outside the times-of-use, reduced set points are used for control:
The reduced flow set point is calculated as the difference between the adjusted values for Day
set point (rated room temperature) and Night set point (reduced room temperature).
The Max. flow temperature and Min. flow temperature parameters mark the upper and lower lim-
its of the flow temperature. A separate gradient characteristic can be selected for the limitation
of the return flow temperature.
Examples for adjusting the characteristic:
4
Old building, radiator design 90/70:
4
New building, radiator design 70/55:
4
New building, radiator design 55/45:
4
Underfloor heating depending on arrangement: Gradient smaller than 0.5
Note: Particularly for control operation without room sensor, the room temperatures set for day
(Day set point) and night (Night set point) only become effective satisfactorily when the heating
characteristic has been adapted to the building/heating surface layout.
Function
4-point characteristic
Parameters
Day set point
Night set point
Parameters
Gradient, flow
Level, flow
Min. flow temperature
Max. flow temperature
* With CO1, 2 -> F05 - 1, the following applies: Gradient, flow / 0.2 to 1.0 (1.0)
48
EB 5573 EN
WE Configuration
0 CO1, 2 -> F11 - 0
WE Switch position / Range of values
20.0 °C / 0.0 to 40.0 °C
15.0 °C / 0.0 to 40.0 °C
WE Parameter level / Range of values
1.8* PA1, 2 / 0.2 to 3.2
0.0 °C PA1, 2 / –30.0 to 30.0 °C
20.0 °C PA1, 2 / 5.0 to 130.0 °C
90.0 °C* PA1, 2 / 5.0 to 130.0 °C
Max. flow temperature / 5.0 to 50.0 °C (50.0 °C)
Gradient approx. 1.8
Gradient approx. 1.4
Gradient approx. 1.0