Return flow increase
With this function, for example, the return temperature of a heating circuit is increased through the storage.
Return flow increase 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.
Return flow increase Tmax
Maximum temperature set on the storage sensor set for this function If this temperature is exceeded at the RL storage sensor, the func-
tion 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.
Domestic hot water valve
This function activates a DHW-valve or -pump, if a DHW heat request is present.
Circulation
Depending on the temperature and time approval, a circulation pump is turned on for the DHW storage.
Tmin
If this value at the circulation sensor is undershot and the circulation is approved or there is a request through a tapping process, the
circulation pump is started.
Hysteresis
If the circulation Tmin value is exceeded by the value set here, the circulation pump will be shut down.
Circulation sensor
If the circulation Tmin value is exceeded by the value set here, the circulation pump will be shut down.
Circulation pause time
In order to prevent an excessive switching on of the circulation pump, a block time can additionally be set up here to prevent
it from being turned on again. If the circulation pump has turned off, it can first go into operation again after the expiration of the time
set here.
Purging time
If during the operation of the circulation pump, also after expiration of the optional purging time, the previously selected temperature at
the circulation sensor is not reached, the pump will turn off. This function should protect against unnecessarily long operation of the cir-
culation pump, for example, if the warm water storage is too cold.
Circulations periods
Operating times of the circulation
Here the desired periods are set in which the circulation is approved. For each weekday, three times can be specified, furthermore,
you can copy individual day to other days. The circulation is shut down outside of the set times.
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