Note: The Flow temperature set pointupstream of the heat exchanger valid after hot watertapping is finished is used as a reference the next time hot water is tapped. Outside thetime-of-use of DHW heating, the hot water is regulated to the Sustained DHW temperature.Functions WE ConfigurationWater flowmeter 0AnACO4 -> F04 - 1AnA (water flowmeter), bin (flow switch)Flow sensor V4 0 CO4 -> F05 - 1Parameters WE Rotary switch / Range of valuesDHW temperature set point 55 °C Bottom /Min. to max. DHW temperatureSustained DHW temperature 40 °C Bottom /Min. to max. DHW temperatureParameters WE Parameter level / Range of valuesMin. DHW temperature 40 °C PA4 / 5 to 90 °CMax. DHW temperature 60 °C PA4 / 5 to 90 °CMaximum charging temperature 80 °C PA4 / 20 to 130 °C (only with VF4)6.4 DHW heating with solar systemThe systems Anl 1.3, 1.4, 1.7, 1.8, 2.3, 2.4, 3.3, 3.4, 4.3, 10.3, 11.3 and 11.4 include asolar system for DHW heating. In these systems, the difference between the temperaturesmeasured at storage tank sensor SF3 and the sensor at the solar collector VF3 is determined.TheSolar pump ON parameter determines the minimum temperature difference betweensensors VF3 and SF3 required to activate the solar pump. If the temperature difference fallsbelow the value ofSolar pump OFF, the solar pump is switched off. Basically, the solar pumpis also switched off when the water temperature measured at sensor SF3 has reached theMax. storage tank temperature.Note: The times-of-use of the DHW circuit do not affect the operation of the solar system.After the key number 1999 has been entered, the operating hours of the solar pump are dis-played in extended operating level.EB 5579 EN 89Functions of the DHW circuit
