Drinking water heating and treatment system, to prevent germs and Legionnaire's Disease bacteria developing, has two heat exchangers in the circulation to the hot water supply heat store

摘要

The system to heat and treat drinking water has a heat exchange unit (3) linked at the secondary side through a feed pipe (2) connected to the water supply (1), to bring the water to a reaction temperature. It is linked (4) at the secondary side to a reaction store (5) which is linked (6) to a heat exchange unit (7) at the secondary side to cool the water. The water outflow (13.2) from the primary side of the second heat exchanger is connected to the primary back flow (13.1) at the first heat exchanger. The outflow (15) from the first heat exchanger and the backflow (17) to the primary side of the second heat exchanger are connected to the heat store (12) of the hot water supply. A circulation pipe (10) connects the water feed pipe to a shower head (9).