eta SH20 - Buffer with Solar Heating System; Buffer as a Combination Tank

ETAtouch controller [BufferFlex] function block - log boiler
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7.3.2 Buffer with solar heating system
"BufferFlex" with solar heating system
The control principles of the solar heating system
and the different variations are described in
chapter 7.7 "
[Solar] function block".
In the overview of the buffer, the solar heating system
appears as another producer for the buffer. In the
subsequent graphic, the buffer is charged by the solar
heating system at a flow temperature of 98 °C.
Fig. 7-48: Solar heating system on the buffer
If a stratified charger for the buffer is installed, the solar
heating system can charge the upper and lower
portion of the buffer. The solar heating system is
displayed twice.
Fig. 7-49: Stratified charging of the buffer
In the "BufferFlex" text menu, different settings
for the [Solar storage strategy] parameter are
possible (see chapter 7.3.4 "
Text menu - Adjustable
parameters", parameter [Solar storage strategy]) for
stratified charging of the buffer by the solar heating
system.
7.3.3 Buffer as a combination tank
"BufferFlex" with integrated hot water tank or coils
The current hot water temperature is shown at the top
of the screen by the water tap icon.
Fig. 7-50: Combination tank
In the settings menu ( button), the time window for
the loading of the hot water and the desired hot water
temperature can be set (see chapter 7.3.3.1 "
Setting
the hot water charging times").