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• Menu sequence and structure
3110086 EHC20 UK 110515
6.4.3.3 Cooling sensor
The reference sensor for the cooling function.
Setting range: S1-S8, VFS1-2, Active storage tank, RC / default: none
6.4.3.4 Times
Enable time for the cooling function
You can set the desired time periods during which the cooling function is enabled from a time point of view here. You
can enter three times for each day of the week. You can also copy individual days to other days. The cooling function is
switched off outside the set times.
Setting range: 00:00 to 23:59 / default: 06:00 to 22:00
6.4.4 Return flow temperature rise
With this function, the return flow temperature of a heating circuit can be increased with the help of the storage tank.
Setting range: On, Off
6.4.4.1 RF Tmax
Maximum temperature at the storage tank sensor. If this temperature at the set storage tank sensor is exceeded,
the relay will be switched off again.
Setting range: 0 - 99°C / default: 70°C
6.4.4.2 ∆T return flow
Switch-on temperature difference
If the temperature difference between the storage tank sensor and the return flow sensor is exceeded, the relay will be
switched on.
Setting range: 5-20 K / default: 8 K
Switch-off temperature difference:
If the temperature difference between the storage tank sensor and the return flow sensor is exceeded, the relay will be
switched off.
Setting range: 2-19 K (limited by ∆T storage tank RF On) / default: 4 K
6.4.4.3 Return flow sensor
Return flow sensor selection
Setting range: S1-S8, VFS1-2, Active storage tank / default: none
6.4.4.4 Storage tank sensor
Storage tank sensor selection
Setting range: S1-S8, VFS1-2, Active storage tank / default: none
6.4.5 Anti-Legionella function
With the help of the anti-Legionella function, you can heat up the system at selected times in order to eliminate
Legionella bacteria.
Setting range: On, Off
6.4.5.1 AL Tsetpoint
This temperature must be reached at the AL sensor(s) for the AL action time in order to allow successful heating.
Setting range: 60 - 99°C / default: 70°C
