and the forced charging of the buffer storage tank, protects it against
overtemperature and maintains the layering in the storage tank as far as
possible.
Auto generation lock (4720)
The heat generator is only put into operation if the buffer can no longer
cover the current heat demand. The following settings are possible:
None: The automatic heat generator lock is deactivated.
With B4: The automatic heat generator lock is triggered by the B4 buffer
storage tank sensor.
With B4 and B42/B41: The automatic heat generator lock is triggered by
the B4 and B41 (or B42) buffer storage tank sensors.
Important
To activate the heat generator lock, the temperature must be high
enough at both sensors.
Auto heat gen lock SD (4721)
The heat generator is locked if the the temperature in the buffer storage
tank is higher than the boiler sAuto heat gen lock SD.
Temp diff buffer/HC (4722)
If the temperature difference between buffer storage tank and heating
circuit temperature request is large enough, the heat required by the
heating circuit will be taken from the buffer storage tank. The heat
generator is locked. This enables a mixer boost, which is not necessary in
the event of heating from the buffer, to be compensated for or, if
necessary, an undersupply to be approved as well.
Min st tank temp heat mode (4724)
If the storage tank temperature of the buffer storage tank drops below this
value, the heating circuit is switched of if no generator is available.
Charging temp max (4750)
The buffer storage tank is charged from solar energy up to the set
charging temperature maximum.
Important
The collector overheating protection function can reactivate the
collector pump until the maximum cylinder temperature (90 °C)
has been reached.
Recooling temp (4755)
If it was necessary to charge the buffer storage tank to above the
maximum charging temperature (program no. 4750), recooling down to the
recooling temperature set here is carried out as soon as possible. Two
functions are available for recooling the buffer storage tank down to the
recooling temperature (see program no. 4756 and 4757).
Recooling DHW/HCs (4756)
The energy can be discharged via a heat draw by the room heating or the
domestic water storage tank. This can be set separately for each heating
circuit (see program no. 861, 1161, 1461).
Recooling collector (4757)
Recooling when the buffer storage tank temperature is too high by
transmitting energy to the environment via the collector area.
Off: Recooling has been deactivated.
Summer: Recooling is only active in summer.
Always: Recooling is always active.
With solar integration (4783)
Setting of whether the buffer storage tank can be charged by solar energy.
9 Settings
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