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Note!
The function block parameter can only be accessed when the function has started by deacti-
vating the function block and activating it again.
Functions
WE
Configuration
Underfloor heating
Drying of jointless floors
0
5 °C/24 h
45 °C
4
0 °C/24 h
STOP
CO1, 2 -> F05 - 1
Temperature rise / 1 to 10 °C/24 h
Maximum temperature / 25 to 60 °C
Maintaining time for max. temperature / 1 to 10 days
Temperature reduction / 0 to 10 °C/24 h
START
5.4
Deactivation depending on outdoor temperature
5.4.1 OT deactivation value in rated operation
If the outdoor temperature exceeds the limit
OT deactivation value in rated operation, the af-
fected heating circuit is put out of service immediately. The valve is closed and the pump is
switched off after t = 2 x valve transit time. When the outdoor temperature falls below this
value (less 0.5 °C hysteresis), heating operation is restarted immediately.
With the default settings, this means that, during the warm season, the system is switched off
at an outdoor temperature of 22 °C.
Parameter
WE
Parameter level / Range of values
OT deactivation value
in rated operation
22 °C
PA1, 2 / 0 to 50 °C
5.4.2 OT deactivation value in reduced operation
If the outdoor temperature exceeds the limit value
OT deactivation value in reduced operation
in reduced operation, the affected heating circuit is put out of service immediately. The valve is
closed and the pump is switched off after t = 2 x valve transit time. When the outdoor tempera-
ture falls below this value (less 0.5 °C hysteresis), heating operation is restarted immediately.
With the default settings, this means that, at night, the system is switched off at an outdoor
temperature of 15 °C to save energy. Nevertheless, remember that the system requires some
time in the morning to heat up the building.
54
EB 5576 EN
Functions of the heating circuit