Samson TROVIS 5500 - Page 73

EB 5573-1 EN 73
Functions of the heating circuit
Outside the times-of-use, reduced set points are used for control: the reduced ow 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. ow temperature' and
'Min. ow temperature' parameters mark the upper and lower limits of the ow temperature.
A separate gradient characteristic can be selected for the limitation of the return ow tem-
perature.
Examples for adjusting the characteristic:
− Old building, radiator design 90/70: Gradient approx. 1.8
− New building, radiator design 70/55: Gradient approx. 1.4
− New building, radiator design 55/45: Gradient approx. 1.0
− Underoor 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.
Functions WE Conguration
Four-point characteristic 0 CO1, 2 > F11 - 0
Parameters WE Switch position: value range
Day set point 20.0°C
: –5.0 to 150.0°C
Night set point 15.0°C
: –5.0 to 150.0°C
Parameters WE Parameters: value range
Flow gradient 1.8* PA1, 2 > P01: 0.2 to 3.2
Level (parallel shift) 0.0°C PA1, 2 > P02: –30.0 to 30.0°C
Min. ow temperature 20.0°C PA1, 2 > P06: –5.0 to 150.0°C
Max. ow temperature 90.0°C* PA1, 2 > P07: –5.0 to 150.0°C
* With CO1, 2 > F05 - 1 the following
applies:
Gradient: 0.2 to 1.0 (1.0)
Max. ow temperature: –5.0 to 50.0°C (50.0°C)
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