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5.11 Tmax S3
Switch-off temperature at sensor 3
If this value is exceeded at sensor 3 and the other conditions are also met, then the
controller switches the relay off. If sensor 3 falls below this value again and the other
conditions are also met, then the controller switches the relay on again.
Setting range: from 0°C to 99°C
Default setting: 60°C (in systems not using S3: Default Off)
Danger
Temperature values which are set too high can lead to scalding or dam-
age to the system. Scalding protection must be provided by the cus-
tomer!
Settings
5.12 Hysteresis
Hysteresis of thermostat function via S3
Sets the hysteresis for the heating of the storage by thermostat. When Tref S3 at sen-
sor 3 is exceeded by the set hysteresis, additional heating at R2 is switched off.
In Energy saving mode (see 5.9) additional heating runs till hysteresis is
reached.
Settings range: 2°C to 20°C / Default: 10°C
Hysteresis of the cooling function via S3
Sets the hysteresis for the cooling function of the storage. If the temperature at S3
drops below Tref S3 by this value, cooling at R2 is switched off.
Settings range: 2°C to 20°C / Default: 10°C
5.10 TecoS3
Minimum temperature S3 in Energy saving mode
In the hydraulic variants “Solar+thermostat” and “Sol+therm+valve3”, TecoS3 is the
minimum temperature at S3 for the thermostat in Energy saving mode. If the tempera-
ture drops below this value and the thermostat is enabled (see “thermostat times”), R2
is activated till the temperature reaches hysteresis (see hysteresis).
Settings range: 0°C to 99°C / Default: 20°C
5.9 Energy saving mode
Energy saving mode for the thermostat function
In energy saving mode the additional heating via R2 is switched on at TecoS3 and
heats up to Teco+hysteresis. When energy saving mode is active, but no solar heat is
available, TsetS3 is used like in normal mode.
Settings range: On, Off/ Default: Off
