Studies have shown that many hot water systems contain legionella bacteria. The AquaProtect system is designed for thermal disinfection of hot water to eliminate these bacteria.     Since the system includes heat recovery, the disinfection process consumes no extra energy. In systems in which previous attempts were made to reduce the bacteria count by raising the system temperature, the energy costs can be substantially reduced by installing the AquaProtect system and lowering the water temperature back to its original value.   How do bacteria cause infection? The legionella bacterium occurs naturally in lakes and water sources and enters our water systems with the cold water. Different materials, deposits that promote growth, and certain temperature levels encourage legionella bacteria to propagate. These bacteria breed most actively at temperatures between 20 and 45°C. People are infected by inhaling the bacteria with water vapour when showering or washing. Legionella bacteria cause Legionnaires’ disease, the symptoms of which are similar to pneumonia, and the disease may be fatal unless treated in time.   The larger and the more complex the hot water system, the greater the probability or risk of high bacteria contents. If the hot water temperature in the system is low and if the system has been modified so that the water is stagnant in certain pipe connections, the risk of infection will be very high. The hot water systems in hospitals, hotels, schools, public baths and also in shower rooms in work places and sports facilities are typical examples of systems that should be checked and remedied as necessary. Reliable performance Legionella bacteria are temperature sensitive. The Aqua- Protect system heats the water to 70°C and keeps it at this temperature for about six minutes, which kills the bacteria. The water is then cooled to the required system temperature. The AquaProtect system is rated so that it has the capacity for periodic disinfection of the entire hot water system by heating the water to a high temperature.   • Safe eradication of the legionella at a temperature of 70ºCat six minutes holding time. Continuous disinfection of all   circulating water • Temperature safety function, e.g. low capacity on primaryside or worse heat transfer. Depending on the set point of   the controller the distribution valve limits the flow entering the combined reaction tank at the right temperature of 70ºC   all other flow is recirculated to the charging loop • Net disinfection • Heat exchangers for waters with low/high lime content • Standardised capacity ranges for different tapping flow rates • Compact-system ready to be connected • Electronic control device Options • Protection against capacity overload, shut-off valve on the inlet of the storage tank, while the charging capacity is still   available for the tapping. • AlfaNova compact heat exchanger (100% stainless steel)   AquaProtect T is a patent-pending heat exchanger system specifically developed for thermal disinfection of hot water. It heats the water to 70°C and keeps it at this level, which kills the bacteria effectively. Since the system includes heat recovery, the disinfection process consumes no extra energy. Instead of being diluted with cold water to the system temperature, the 70°C water is used to preheat the incoming cold water. All of the heat used for disinfection will thus be recovered, which means high cost-efficiency. For the adaptation to specific demands, AquaProtect T can be delivered with a number of optional features.   Domestic hot water fo r: • Hospitals • Nursing Homes • Hotels • Military barracks • Apartment buildings • Gyms, sport clubs, fitness/wellness centers • Industrial facilities • Public swimming pools • Camping facilitie