Hot water supply unit and method for efficient and hygienic mode of operation of a drinking water standards warm water - memory drawer system of a hot water supply unit

摘要

It is an object of the invention, it is a process for the efficient and hygienic mode of operation of a drinking water standards warm water - memory drawer system to schaffen.warmwasserbereitungsanlage (1) with a primary heating water circulation (2) and a secondary drinking water circuit (3) which, via a heat via support system (4) with the primary heating water circulation (2) is coupled and a drinking water standards - warm water circuit (5), a with the drinking water standards - warm water circuit (5), which is coupled to the drinking water standards warm water reservoir (6) and a with the heat exchanger system (4) connected to a memory drawer system (7), wherein the heat via support system (4) a first heat exchanger (8) as afterheater (8) for the drinking water standards - warm water circuit (5) and / or the memory drawer system (7) and a second heat exchanger (9) as a preheater (9) at least for the memory drawer system (7), wherein in a common line section (10) of the drinking water standards - warm water circulation circuit barrel (5) and of the memory drawer - system (7) of a pump (11) are arranged, and that of the drinking water standards - warm water circuit (5) and / or the memory drawer system (7) a volume flow - sensor (12), and in that in the first runnings (13) of the primary heating water - circuit (2) of the first heat exchanger (8) and in the secondary lead (14) of the first heat exchanger (8) and in the circulation of the rear of the barrel (16) of the drinking water standards - warm water circulation circuit barrel (5) and in the secondary return line (21) of the second heat exchanger (9) in each case a temperature - sensor (b1, b2, b3, b6) is arranged, and that in the memory drawer system (7) a fitting (18) for setting or regulation of the memory volume charging current is present, wherein at least the or the volume flow sensor is provided (12), the temperature sensors (b1, b2, b3, b6) and the fitting (18) for the regulation of the memory charging volume current with a control unit (19) or regulating unit (19) are connected.