sauter equitherm EQJW126F001, Mounting And Operating Instructions

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Functions of the heating circuit
BA_EQJW126F001_EN001
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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 tempera- ture).
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 temperature.
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

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 WE Configuration
Four-point characteristic 0 CO1 -> F11 - 0
Parameters WE Switch position / Range of values
Day set point
Night set point
20.0 °C
15.0 °C
/ 0.0 to 40.0 °C
/ 0.0 to 40.0 °C
Parameters WE Parameter level /
Range
of values
Gradient, flow 1.8* PA1 / 0.2 to 3.2
Level, flow 0.0 °C PA1 / –30.0 to 30.0 °C
Min. flow temperature 20.0 °C PA1 / 5.0 to 130.0 °C
Max. flow temperature 90.0 °C* PA1 / 5.0 to 130.0 °C
* With CO1 -> F05 - 1, the following applies: Gradient, flow / 0.2 to 1.0 (1.0)
Max. flow temperature / 5.0 to 50.0 °C (50.0 °C)