Samson TROVIS 5500 Mounting And Operating Instructions page 73

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 tem-
perature) and 'Night set point' (reduced room temperature). The 'Max. flow temperature' and
'Min. flow temperature' parameters mark the upper and lower limits of the flow temperature.
A separate gradient characteristic can be selected for the limitation of the return flow tem-
perature.
Examples for adjusting the characteristic:
− Old building, radiator design 90/70:
− New building, radiator design 70/55:
− New building, radiator design 55/45:
− Underfloor heating depending on arrangement:
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.
Functions
Four-point characteristic
Parameters
Day set point
Night set point
Parameters
Flow gradient
Level (parallel shift)
Min. flow temperature
Max. flow temperature
* With CO1, 2 > F05 - 1 the following
EB 5573-1 EN
WE Configuration
0 CO1, 2 > F11 - 0
WE Switch position: value range
20.0 °C
15.0 °C
WE Parameters: value range
1.8* PA1, 2 > P01: 0.2 to 3.2
0.0 °C PA1, 2 > P02: –30.0 to 30.0 °C
20.0 °C PA1, 2 > P06: –5.0 to 150.0 °C
90.0 °C* PA1, 2 > P07: –5.0 to 150.0 °C
Gradient: 0.2 to 1.0 (1.0)
applies:
Max. flow temperature: –5.0 to 50.0 °C (50.0 °C)
Functions of the heating circuit
Gradient approx. 1.8
Gradient approx. 1.4
Gradient approx. 1.0
Gradient smaller than 0.5
: –5.0 to 150.0 °C
: –5.0 to 150.0 °C
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