Adapting the appliance to the heating system82 Installation instructions geoTHERM 0020051574_049Display shown Description Factory settingLegionella protect. C9ParametersLegionella protect. OFFLegionella start 04:00>SelectLegionella protect.: OFF/Mo/Tu/We/Th/Fr/Sa/SuLegionella start: The time which was set determineswhen the legionella protection function starts.The legionella protection function is carried out bythe auxiliary heating on the preset day of the week, atthe preset time, if the auxiliary heating has been acti-vated.For this function, the controller sets the flow targettemperature to 76 °C/74 °C (2 K hysteresis). Thelegionella protection function is terminated when thecurrent flow temperature at the cylinder has reached73 °C for at least 30 min, or after 90 minutes if 73 °Cis not reached (e.g. if hot water is drawn during thisperiod).The processes of the legionella protection functionstart in a connected drinking water station VPM W.OFF04:00Pump control C10ParametersCirculation pump 100 %>SelectCirculation pump: The setting range 1 - 100% is not asetting for the pump output, but is a division oftime periods relating to an interval of 10 min.,e.g. 80% = 8 min. operation, 2 min. break.The time period is active. In this time period, thecirculation pump clocks in accordance with theset percentage value. The circulation pump doesnot start if the DHW cylinder is still too cold.Recommended settings for systems with VPS/2¬ Planning information.100 %Solar tank C11ParametersMaximum flow temp. 95 °C>Select temperatureThis menu only appears if a solar tank is installed, e.g.VPS /2Maximum flow temp.: If sufficient solar energy isavailable, a connected buffer tank VPS /2 isheated beyond the target temperatures forheating and hot water to the maximum tempera-ture set here.i The heating circuits connected to thebuffer tank must be mixed circuits.9.6. Menu C: Set parameters for the heating system
