Nobel AM Series Instruction Manual
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AUTOMATIC SOFTENERS INSTRUCTIONS MANUALAM/T AM/RT AM/V AM/RV AM/METER AM/R METERs.r.l. - ITALY Page 4 of 15 am_tvm_mi-r1.doc - r.12. Principles of workingSoftening is the process that allows to remove calcium and magnesium from water. Thesetwo elements, together with bicarbonate, are the main cause of the scale inside thermal plantand domestic appliances (heating system, laundry machines, etc.). They also can cause bigtrouble in many industrial process.The process of softening is featured by ion exchange. The resins contained in the columnexchange the ions calcium and magnesium (Ca ++ and Mg ++) against sodium ions (Na +), of whichthey are charged. When the resins are exhausted, they are fully charged of calcium andmagnesium (Ca ++ e Mg ++) while they do not have any more sodium ions (Na +) available forexchanging and they need to be regenerated.Regeneration means re-built the charge of sodium ions (Na +) available from sodium chloride(NaCl), common salt used in kitchen. During regeneration, an exchanging back is performed ofsodium ions (Na +) against ions calcium and magnesium (Ca ++ e Mg ++) which are carried awayto drain. The equipment prepares automatically the brine from the salt (NaCl) in grain or tablets.AM series softeners are used for water treatment for residential and industrial applications aswell. All the materials, resins included, are food grade and approved for drinking water.The range of models includes systems with capacity from 5 up to 60 m³/h and capacity from900 up to 7200 m³ x ºF.The working of the system is controlled by an automatic programmer, allowing to schedulethe frequency and the hour for the regeneration. Then the system automatically starts theregeneration that proceed automatically. During regeneration, (except for "fast rinse" phase) thesystem supplies non softened water thanks to a by-pass inside the automatic valve; forAM/METER models, water supply during regeneration is completely inhibited by means of amembrane valve mounted on the outlet.These system can be equipped with automatic sterilizing device (Nobel CL 90 or CL 180),according to the local laws of some countries for the treatment of drinking water. |
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