In systems in which the drying function had to be interrupted due to DHW heating (e.g.
Anl 2.1), storage tank charging does not occur while the drying function is active, provided
it is not used for frost protection of the storage tank.
Note: The function block parameter can only be accessed when the function has started by
deactivating the function block and activating it again.
Functions WE Configuration
Underfloor heating
Drying of jointless floors
0
5 °C/24 h
25 °C
45 °C
4
0 °C/24 h
STOP
CO1, 2, 3 -> F05 - 1
Temperature rise / 1 to 10 °C/24 h
Start temperature / 20 to 60 °C
Maximum temperature / 25 to 60 °C
Maintaining time for max. temperature / 1 to 10 days
Temperature reduction / 0 to 10 °C/24 h
n
START,
nn
START,
nnn
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, 3 / 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
EB 5579 EN 75
Functions of the heating circuit
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