TROVIS 5575-000x and TROVIS 5575-001x:
The outdoor temperature is alternatively received over the device bus when the following
configurations are made:
CO7 -> F01- 1 and CO7 -> F07 - 1
An outdoor temperature input independent from AF1 can be sent over the device bus for a
second heating circuit following configurations are made:
CO2 -> F02 - 1 and CO7 -> F09 -> 1
A second outdoor sensor cannot be connected.
TROVIS 5575-002x:
Version without device bus: The outdoor temperature can be only be measured directly over
the outdoor sensor AF.
5.1.1 Gradient characteristic
Basically, the following rule applies: a decrease in the outdoor temperature causes the flow
temperature to increase. By varying the parameters
Gradient
and
Level
, you can adapt the
characteristic to your individual requirements. Increasing
Gradient
results in a higher flow
temperature, decreasing
Gradient
in a lower flow temperature. The parameter
Level
per-
forms a parallel transport of the heating characteristic in upward or downward direction.
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 parameters
Max. flow temperature
and
Min. flow temperature
mark the upper and lower
limits of the flow temperature. A separate gradient characteristic can be selected for the limi
-
tation of the return flow temperature.
Examples for adjusting the characteristic:
4
Old building, radiator design 90/70: Gradient approx. 1.8
4
New building, radiator design 70/55: Gradient approx. 1.4
4
New building, radiator design 55/45: Gradient approx. 1.0
4
Underfloor heating depending on arrangement: Gradient smaller 0.5
Note!
Particularly for control operation without room sensor, the adjusted room temperatures 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.
EB 5575 EN 51
Functions of the heating circuit
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