The displacement is displayed as Level of the heating characteristic; this parameter cannot be
accessed to adjust it manually when the flash adaptation mode (FB 2 = ON) is selected.
The options on the controller and remote control to correct the set point apply to the room tem-
perature set point in adaptation/flash adaptation mode.
4.3 Reduced operation
In reduced operation, the heating circuit generally operates on a flow temperature set point
value defined by the heating characteristic and reduced by the value set under Set-back of flow
temperature for reduced operation. If, however, during times of non-use, the outdoor tempera-
ture exceeds the value entered as the Outdoor temperature limit value for deactivation in re-
duced operation, the controller automatically deactivates the heating system by closing the
control valve, and the heating circulation pump UP is deactivated after the set lag time has
elapsed. If the outdoor temperature falls below the limit value (approx. 0.5 °C differential
gap), the heating system immediately starts operating again.
If the outdoor temperature falls below the Outdoor temperature limit value for reactivation of
rated operation in reduced operation during times of non-use, the value set under Set-back of
flow temperature for reduced operation is ignored: the flow set point for rated operation is
used.
4.4 Summer time operation
In summer time operation, the controller automatically deactivates the heating system, by clos-
ing the control valve and the heating circulation pump UP is switched off after the set lag time
has elapsed.
The outdoor temperature is the decisive factor for the start of summer time operation. If it ex-
ceeds the parameter Outdoor temperature limit value for summer time operation (default set-
ting: 22 °C; setting range: 0...50 °C), summer time operation is directly activated.
When this limit value (approx. 0.5 °C differential gap) is not reached, the heating immediately
starts operating again.
The Time-controlled summer time operation function is linked to the setting the function block
FB 3 = ON and only activated when the mode switch is set to .
The decisive factors for time-controlled summer time operation to become active are:
The current date. If it lies within the effective time period of summer time operation
(settings in the configuration level linked to the function block setting FB 3 = ON. Default:
01.06. to 30.09.)
The daytime mean temperature (measured between 7:00 and 22:00 hrs) exceeds the out-
door temperature limit value on the corresponding number of subsequent days
(settings in the configuration level linked to the function block setting FB 3 = ON. Default:
outdoor temperature limit value 18 °C setting range 0 to 30 °C and 2 days to activate
the time-controlled summer time operation setting range 1...3)
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