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4.2 Flash adaptation
It is possible to achieve a direct reaction to deviations in room temperature via the function block
setting CO1 FB 3 = EIN (linked to FB 1 = ON): so-called flash adaptation counteracts deviations
in room temperature within time-controlled rated operation by raising or lowering the heating
characteristic by up to 10 °C (parallel adjustment of the heating characteristic).
This takes place within a time lapse of 10 minutes if the room temperature deviates from the set-
point value by more than 0.5 K. The heating characteristic adjustment takes place in steps of 1 K.
With flash adaptation, the possibility of correcting the setpoint value on the remote control does
not exist. Flash adaptation is terminated, i.e. the parallel adjustment is cancelled, at the end of
time-controlled rated operation.
Attention! Cooling such as draughts or open windows affect control! Short-term overheating of
rooms may occur after such cooling is no longer effective!
4.3 Reduced operation
In the case of reduced operation, the heating loop generally operates a flow temperature set-
point value defined by the heating characteristic, being a setpoint reduced by the value entered
in "reduction of flow temperature for reduced operation".
If however, during reduced operation, the outdoor temperature exceeds the value entered as the
"outdoor temperature limit for switching off during reduced operation", then the heating loop is
automatically switched off by the controller; by the control valve being closed and the heating
circulation pump UP being switched off after two valve running periods (the control valve run-
ning period is adjustable at the controller). If the temperature falls below the limiting value (less
0.5 °C differential gap), then heating operation starts up again immediately.
4.4 Summertime operation
During the summertime the heating loop is automatically switched off by the controller; the con-
trol valve is closed and the heating circulation pump UP is switched off after an adjustable time
period. The "temperature and time-controlled summertime operation" function is linked to the
setting CO1 FB 6 = ON. These are two independent functions whose effects may overlap:
The outdoor temperature level is decisive for starting up exclusively temperature-controlled sum-
mertime operation. If the temperature exceeds the "outdoor temperature limit for summertime
operation" (default setting 22 °C; adjustment range: 0 to 50 °C) adjustable in the parameter le-
vel, then summertime operation starts up immediately.
If the temperature falls below the limiting value (less 1.0 °C differential gap), then heating opera-
tion starts up again immediately. This function is independent of the function block setting CO1
FB 6 = ON.
The following is decisive for starting up temperature and time-controlled summertime operation
1. The daytime mean temperature level (calculated between 0700 and 2200 hrs). If on 2 succes-
sive days the temperature exceeds the outdoor temperature limit adjustable in the configurat-
ion level, linked to the function block setting CO1 FB = ON (default setting 18 °C; adjustment
range: 0 to 50 °C), and if
2. The current date is within the effective time period linked to the function block setting CO1
FB 6 = ON, adjustable in the configuration level (default setting 01/06 to 30/09), then sum-
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