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1.4. DHW PUMP
This option enables the user to configure:
Operation mode
OFF – DHW pump is switched off.
Automatic mode – DHW pump operates according to pump activation temperature setting.
Heating - The pump operates until the pre-set DHW temperature is reached. In this mode, the source
temperature and maximum CH temperature are ignored.
Pre-set DHW temperature - This option is used to define the pre-set temperature of domestic hot water. Once
the temperature is reached, the pump is disabled.
DHW hysteresis - the temperature difference between device activation and its deactivation (e.g. when the
Activation temperature is set at 60ºC and the hysteresis value is 3ºC, the device will be disabled when the
temperature reaches 60ºC and it will be activated again when the temperature drops to 57ºC).
DHW pump activation temperature - This option is used to set CH temperature which must be reached for the
pump to be activated.
Maximum CH temperature - This option is used to set the temperature at which the pump will be activated in
order to transport the excess hot water into the water tank.
Weekbased regulation- This function is described in detail in section VIII.
Source sensor - This function enables the user to select the source sensor which will be used to provide
temperature data.
1.5. PUMP ANTI-STOP
Anti-stop function prevents limestone depositing during long periods of pump standstill outside the heating season. When
this function is active, the valve pump is switched on for 5 minutes every 10 days.
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