BWT PRO A 22 - Operating Principal; Operating Principal - Pro a Chlorine Generator; Operating Principal - Pro LS Chlorine Generator; Operating Principal and Presentation of the Product Features and Options

2021/03 - Indice de révision : B Code : 29740 TRAITEMENT DE L'EAU
32/88
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When handling pH Reducer products, protective glasses and clothing should be worn to protect
againstsplashes.Intheeventofcontactwiththeskin,ushtheareaabundantlywithwater,seek
medicalattentionimmediatelyiftheeyesareeffected.
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Bewareoffreezing!Similarlytootherhydraulicequipment,thecellcouldbedamagedbyfreezing
ofthewater.MakesurethatthetemperatureatthepointwheretheChlorinegeneratorisinstalled
remainsabovezerotopreventwaterfromfreezinginthecellwhiletheltrationpumpisnotrunning.
2. OPERATING PRINCIPAL AND PRESENTATION OF THE
PRODUCT FEATURES AND OPTIONS
2.1 Operating principal
2.1.1 Operatingprincipal-ProAChlorinegenerator
The BWT PROA Chlorine generator is a pool water treatment device that electrolyses salt (Sodium
Chlorine)dissolvedinthepoolwater.Itgraduallyandautomaticallytransformsthedissolvedsaltintofree
Chlorine (Hydrochloric acid and Sodium Hypochorite). Salt water electrolysis offers many advantages
comparedtoconventionalchlorinationprocesses.
• Nohandlingorstoringofchlorinatedproductsthataredangerouswhenconcentrated(saltisharmless
andchemicallyinert);
• Noriskofover-stabilisationofthepoolwater;
• The device regularly produces active Chlorine, this limits the formation of chloramines that have an
unpleasantodourandirritatetheeyesandskinofbathers;bathingismorepleasant;
• ThebreakdownofChloraminesproducesChloridesthatcanbeturnedbackintoactiveChlorinebythe
cell.Chlorineisautomaticallyregenerated,thisreducestheamountofsalttobeaddedovertime;
FortheProAmodel,theconcentrationofdissolvedsaltinthewatershouldideallybebetween3.5
and4g/litre.Itshouldneverriseabove100g/L.
Thedeviceadaptsautomaticallytosaltconcentrationswithinthepermittedrange.Ifthepoolwaterissoft,
aninitialstepofdissolvingsolidsaltinthepoolwaterwillbenecessarybeforeusingthedevicefortherst
time.Subsequently,muchsmalleramountsofsaltwillneedtobeadded.
Seechapter5,Addingsalttothepool
WerecommendtheuseofpoolgradesaltcompliantwiththestandardNFEN16401.
Thedevicealsorunsperfectlywheninstalledonpoolslledwithseawater(approx30gofsaltperlitrefor
AtlanticandMediterraneanseawater).
Whilethedeviceisrunning,acontinuousSELVdirectcurrentpassesbetweentheelectrodesinthecell
andtransforms the salt chlorides dissolved in the water into active Chlorine.This activeChlorine kills
micro-organisms(disinfection)anddestroysorganicmatter(oxidation).Thecellshouldbemountedonthe
hydrauliccircuit,andwatershouldcirculatecontinuouslythroughitsothatChlorinecanbecontinuously
generated.
Seechapter4.1,Hydraulicinstallation
ThegenerationofactiveChlorinecausesthepHtoriseslowlyandgraduallyovertime.ThepHshouldbe
monitoredandadjustedwhennecessarybyaddingtheappropriatequantityofacid.
2.1.2 Operatingprincipal-ProLSChlorinegenerator
The BWT PRO LS Chlorine generator combines two disinfectant production methods: the electrolysis
ofdissolved salt, as describedpreviously for the PROA,and the hydrolysisofwater that splitswater
moleculesintofreeradicals.Theelectricalcurrentarrivinginthecellisusedpreferentiallyforonemethod
ortheother,dependingontheconcentrationofdissolvedsalt.Iftheconcentrationofdissolvedsaltisless
than3.5g/litre, theproductionof freeradicalsincreasestocompensate thedropin productionoffree