Periods
Cooling release times
Here the desired periods are set in which the cooling function is approved. For each weekday, three times can be specified, fur-
thermore, you can copy individual day to other days. The cooling function is shut down outside of the set release times.
Return flow increase
With this function, for example, the return temperature of a heating circuit is increased through the storage.
Return flow increase
Activate function.
RF Tmin
Minimum temperature at storage sensor to enable the return flow increase. As soon as this temperature at the set storage sensor
is exceeded and adequate ΔT is present, the relay is turned on.
RL Tmax
Maximum temperature set on the storage sensor set for this function If this temperature is exceeded at the RL storage sensor, the
function is deactivated again.
ΔT return flow
Switch on temperature difference:
The relay is turned on if this temperature difference is exceeded between the storage sensor and the recooling sensor.
Switch off temperature difference:
The relay is turned off if this temperature difference is undershot between the storage sensor and the recooling sensor.
Return flow sensor
Selection of the return flow sensor.
Storage sensor
Selection of the storage sensor.
Field cooling
This function controls an external cooling unit to cool down the collector.
Field cooling sensor
Reference sensor of the field cooling function.
This function does not activate the solar pump to cool the collector via the storage. Therefore, please activate the col-
lector protection in the protection functions.
Hys max
To protect the cooling unit itself from damage, the relay is switched off as soon as the temperature at the reference sensor of the
field cooling reaches Tmax field + Hys max.
Hys min
When the temperature at the reference sensor of the field cooling falls below Tmax field +Hys min, the relay is switched off.
Tmax field
If this temperature is exceeded at the reference sensor of the field cooling, the relay is switched on.
Anti Legionella
With the help of the anti legionella function (hereinafter referred to as: AL), the system can be heated up at selected times in order
to free it of legionella.
In the delivery state, the anti legionella function is switched off.
Antilegionella function is not shown in the menu “Protective functions”. It is instead shown as submenu of the cor-
responding special function. Special functions with AL include: Solar, burner, circulation and compressor.
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