26
Settings
5.8.3. - DHW Hysteresis
Domestic Hot Water hysteresis
Charging the DHW and heat request is switched off when the temperature at the DHW reference sensor reaches
the temperature set in „5.8.1. - Hot water Minimum“ / „5.8.2. - DHW reference“ plus DHW hysteresis.
Settings range: 2°C to 20°C / Default: 5°C
5.8.2. - DHW reference
Minimum DHW temperature during operating hours
If the set temperature is undershot and the DHW heating charge is enabled i.e. the current time period is set, the
DHW additional heating is switched on.
Settings range: 10 °C to 60°C / Default: 55°C
5.8.4. - Buffer DHW charge
Charging the DHW from the buffer
Charging the Domestic Hot Water from the buffer storage is switched on when the temperature at the buffer sensor
is 8°C warmer than at the DHW sensor. It is switched off again when the temperature at the buffer sensor is only
4°C warmer than the DHW sensor or the temperature at the DHW sensor reaches „5.8.1. - Hot water Minimum“
resp. „5.8.2. - DHW reference“
Settings range: On, Off / Default: Off
5.8.5. - DHW Priority
Primary Domestic Hot Water charging
When this function is active: During DHW charging the reference
fl
ow temperature is lowered to “Minimum
fl
ow
termperature” (see „5.6.7. - Minimum Flow“ on page 25), resulting in the mixer turning to “closed” position.
Settings range: Yes, No / Default: No
Domest
ic hot w
ater
Caution
The request only works when an additional heat source is set as additional function, and the heat source
is also set as heat request source
(see also
Burner: „7.3.11.2. - DHW request“ on page 42,
Compressor: „7.3.13.2. - DHW request“ on page 44)
5.9. - Solar
Settings for additional function, see also „7.3.8. - Solar“ on page 40
5.10. - Solarbypass
Settings for additional function, see also „7.3.8. - Solar bypass“ on page 41
5.11. - Heat exchanger
Settings for additional function, see also „7.3.9. - Heat exchanger“ on page 41
5.12. - Burner
Settings for additional function, see also „7.3.10. - Burner“ on page 42
5.13. - Boiler pump
Settings for additional function, see also „7.3.11. - Boiler pump“ on page 43
5.14. - Compressor
Settings for additional function, see also „7.3.12. - Compressor“ on page 44
5.15. - Glycol pump
Settings for additional function, see also „7.3.14. - Glycol pump“ on page 44
5.16. - Storage loading pump
Settings for additional function, see also „7.3.13. - Loading pump“ on page 44
5.17. - Heating circuit 2
Settings for additional function, see also „7.3.16. - Heating circuit 2“ on page 45
5.18. - Return
fl
ow increase
Settings for additional function, see also „7.3.17. - Return
fl
ow increase“ on page 48
5.19. - Circulation
Settings for additional function, see also „7.3.19. - Circulation“ on page 49
