EN 14743:2005

Water conditioning equipment inside buildings - Softeners - Requirements for performance, safety and testing

This European Standard specifies requirements relating to the construction and mode of operation and relevant methods of testing of automatic, salt-regenerated, cation exchange softeners for drinking water installations inside buildings which are permanently connected to the mains supply.
Until EAS comes into force, the current national regulations remain applicable.
NOTE   Products intended for use in water supply systems should comply, when existing, with national regulations and testing arrangements that ensure fitness for contact with drinking water. The Member States relevant regulators and the EC Commission agreed on the principle of a future unique European Acceptance Scheme (EAS) which would provide a common testing and approval arrangement at European level.
If and when the EAS is adopted, European Standards on products will be amended by the addition of an Annex Z/EAS under Mandate M/136 which will contain formal references to the testing, certification and product marking requirements of the EAS.

Anlagen zur Behandlung von Trinkwasser innerhalb von Gebäuden - Enthärter - Anforderungen an Ausführung, Sicherheit und Prüfung

Diese Europäische Norm legt Anforderungen hinsichtlich der Konstruktion und der Betriebsart sowie
entsprechende Prüfverfahren an automatische, mit Salz regenerierte und nach dem Prinzip des
Kationaustausches wirkende Enthärter für Trinkwasser-Installationen in Gebäuden, die dauerhaft an die
Wasserversorgung angeschlossen sind, fest.
Bis das EAS-System in Kraft tritt, haben die derzeitigen nationalen Bestimmungen weiterhin Bestand.
ANMERKUNG Produkte für die Verwendung in Wasserversorgungssystemen müssen, so weit vorhanden, die
nationalen Bestimmungen und Prüfanordnungen erfüllen, die ihre Eignung für den Kontakt mit Trinkwasser bestätigen. Die
für die Mitgliedstaaten zuständigen Behörden und die EU-Kommission haben sich auf die Prinzipien eines zukünftigen
einheitlichen Europäischen Zulassungssystems (EAS) geeinigt, welches eine gemeinsame Prüf- und Zulassungsregelung
auf europäischer Basis bietet.
Falls und sobald EAS eingeführt ist, werden die Europäischen Produktnormen um einen Anhang Z/EAS unter dem
Mandat M/136 ergänzt, in welchem formale Verweise auf die Anforderungen für die Prüfung, die Zertifizierung und die
Produktkennzeichnung im Rahmen des EAS gegeben werden.

Equipement de traitement d'eau à l'intérieur des bâtiments - Adoucisseurs - Exigences de performances, de sécurité et d'essai

La présente Norme européenne spécifie les exigences relatives à la construction, au mode de fonctionnement et aux méthodes d’essai correspondantes des adoucisseurs automatiques, échangeurs de cations, à sel régénérant, destinés à des installations d’alimentation en eau potable à l’intérieur des bâtiments et raccordés en permanence à l’alimentation principale.
Les réglementations nationales actuelles restent applicables tant que le Système européen d’acceptation (SEA) n’est pas entré en vigueur.
NOTE   Il convient que les produits destinés à un usage dans des systèmes d’alimentation en eau soient conformes, le cas échéant, aux réglementations nationales et aux montages d’essai qui assurent l’aptitude au contact avec l’eau potable. Les organismes de réglementation concernés des États membres et la Commission des communautés européennes se sont mis d’accord sur le principe d’un futur SEA unique définissant des montages d’essai et de validation communs au niveau européen.
A partir de l’adoption du SEA, le cas échéant, les Normes européennes relatives aux produits seront amendées par l’ajout de l’Annexe Z/SEA sous le mandat M/136 qui comportera les références formelles des exigences du SEA en matière d’essais, de certification et de marquage du produit.

Oprema, ki se uporablja za pripravo pitne vode v stavbah – Mehčalci – Zahteve za delovanje, varnost in preskušanje

General Information

• Status: Withdrawn
• Publication Date: 18-Oct-2005
• Withdrawal Date: 12-Jun-2007
• ICS: 91.140.60 - Water supply systems
• Technical Committee: CEN/TC 164 - Water supply
• Drafting Committee: CEN/TC 164/WG 13 - Water conditioning equipment inside buildings
• Current Stage: 9960 - Withdrawal effective - Withdrawal
• Start Date: 13-Jun-2007
• Completion Date: 13-Jun-2007
• Directive: 305/2011 - Regulation (eu) No 305/2011 of the European Parliament and of the Council of 9 march 2011 laying down harmonised conditions for the marketing of construction products and repealing council directive 89/106/eec
• Directive: 89/106/EEC - Construction products
• Ref Project: SIST EN 14743:2006 - Water conditioning equipment inside buildings - Softeners - Requirements for performance, safety and testing

Relations

• Merged Into: EN 14743:2005+A1:2007 - Water conditioning equipment inside buildings - Softeners - Requirements for performance, safety and testing
• Effective Date: 18-Jan-2023

Standards Content (Sample)

SLOVENSKI STANDARD
01-marec-2006
2SUHPDNLVHXSRUDEOMD]DSULSUDYRSLWQHYRGHYVWDYEDK±0HKþDOFL±=DKWHYH]D
GHORYDQMHYDUQRVWLQSUHVNXãDQMH
Water conditioning equipment inside buildings - Softeners - Requirements for
performance, safety and testing
Anlagen zur Behandlung von Trinkwasser innerhalb von Gebäuden - Enthärter -
Anforderungen an Ausführung, Sicherheit und Prüfung
Equipement de traitement d'eau a l'intérieur des bâtiments - Adoucisseurs - Exigences
de performances, de sécurité et d'essai
Ta slovenski standard je istoveten z: EN 14743:2005
ICS:
13.060.20 Pitna voda Drinking water
71.100.80 .HPLNDOLMH]DþLãþHQMHYRGH Chemicals for purification of
water
91.140.60 Sistemi za oskrbo z vodo Water supply systems
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN 14743
NORME EUROPÉENNE
EUROPÄISCHE NORM
October 2005
ICS 91.140.60
English Version
Water conditioning equipment inside buildings - Softeners -
Requirements for performance, safety and testing
Equipement de traitement d'eau à l'intérieur des bâtiments - Anlagen zur Behandlung von Trinkwasser innerhalb von
Adoucisseurs - Exigences de performances, de sécurité et Gebäuden - Enthärter - Anforderungen an Ausführung,
d'essais Sicherheit und Prüfung
This European Standard was approved by CEN on 26 August 2005.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European
Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national
standards may be obtained on application to the Central Secretariat or to any CEN member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the official
versions.
CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,
Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia,
Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36  B-1050 Brussels
© 2005 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 14743:2005: E
worldwide for CEN national Members.

Contents Page
Foreword .4
1 Scope .5
2 Normative references .5
3 Terms and definitions.6
4 Requirements .8
4.1 Softener specification.8
4.2 Quality of materials and chemicals .8
4.2.1 Cation exchange resin.8
4.2.2 Regenerating salt.8
4.3 Design and manufacturing specifications .9
4.3.1 Resistance to hydrostatic pressure.9
4.3.2 Resistance to cyclic pressure.9
4.3.3 Minimum and maximum operating pressure .9
4.3.4 Resistance to temperature .9
4.3.5 Electrical safety.9
4.3.6 Salt tank.9
4.3.7 Continuity of supply during regeneration.9
4.3.8 Protection against backflow and infiltration of brine.9
4.3.9 Noise level .9
4.3.10 Air vent .10
4.3.11 End connections .10
4.3.12 Drain connections.10
4.4 Operating specifications .10
4.4.1 Initiation of regeneration .10
4.4.2 Brining efficiency.10

4.4.3 Regeneration water.10
4.4.4 Quality of treated water after regeneration .10
4.4.5 Continuous flow rate .10
4.4.6 Pressure drop.10
4.4.7 Exchange capacity.11
4.5 Installation specifications .11
4.5.1 Connection to mains water supply and existing pipe network .11
4.5.2 Drain.11
4.5.3 Electrical connection .11
5 Labelling .11
5.1 Identification of equipment .11
5.2 Safety labelling.11
6 Technical documentation.12
7 Test methods.12
7.1 Test conditions .12
7.1.1 Ambiant air .12
7.1.2 Water and salt .12
7.1.3 Test rig.13
7.1.4 Analysis .13
7.2 Cation exchange resin.13
7.3 Technical documentation.14
7.4 Manufacturing tests.14

7.4.1 Resistance to hydrostatic pressure.14
7.4.2 Resistance to cyclic pressure.14
7.4.3 Continuity of water supply .15
7.4.4 Protection against backflow.15
7.4.5 Air displacement .15
7.5 Operating characteristics.15
7.5.1 General .15
7.5.2 Nominal flow rate .15
7.5.3 Regenerations.16
7.5.4 Exchange capacity.17
7.5.5 Brine efficiency .17
7.5.6 Regeneration water.17
7.5.7 Quality of treated water after a regeneration .17

Foreword
This European Standard (EN 14743:2005) has been prepared by Technical Committee CEN/TC 164 “Water
supply”, the secretariat of which is held by AFNOR.
This European Standard shall be given the status of a national standard, either by publication of an identical
text or by endorsement, at the latest by April 2006, and conflicting national standards shall be withdrawn at the
latest by April 2006.
In respect of potential adverse effects on the quality of water intended for human consumption, caused by the
product covered by this European Standard:
1) This European Standard provides no information as to whether the product may be used without
restriction in any of the Member States of the EU or EFTA.
2) It should be noted that, while awaiting the adoption of verifiable European criteria, existing
national regulations concerning the use and/or the characteristics of this product remain in force.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following
countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic,
Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland
and United Kingdom.
1 Scope
This European Standard specifies requirements relating to the construction and mode of operation and
relevant methods of testing of automatic, salt-regenerated, cation exchange softeners for drinking water
installations inside buildings which are permanently connected to the mains supply.
Until EAS comes into force, the current national regulations remain applicable.
NOTE Products intended for use in water supply systems should comply, when existing, with national regulations and
testing arrangements that ensure fitness for contact with drinking water. The Member States relevant regulators and the
EC Commission agreed on the principle of a future unique European Acceptance Scheme (EAS) which would provide a
common testing and approval arrangement at European level.
If and when the EAS is adopted, European Standards on products will be amended by the addition of an Annex Z/EAS
under Mandate M/136 which will contain formal references to the testing, certification and product marking requirements of
the EAS.
2 Normative references
The following referenced documents are indispensable for the application of this European Standard. For
dated references, only the edition cited applies. For undated references, the latest edition of the referenced
document (including any amendments) applies.
EN 973, Chemicals used for treatment of water intende
...