EN 806-5:2012

SLOVENSKI STANDARD
01-maj-2012
Specifikacija za napeljave za pitno vodo v stavbah - 5. del: Delovanje in
vzdrževanje
Specification for installations inside buildings conveying water for human consumption -
Part 5: Operation and Maintenance
Technische Regeln für Installationen innerhalb von Gebäuden für Wasser für den
menschlichen Gebrauch - Teil 5: Betrieb und Wartung
Spécifications techniques relatives aux installations d'eau destinée à la consommation
humaine à l'intérieur des bâtiments - Partie 5: Exploitation et maintenance
Ta slovenski standard je istoveten z: EN 806-5:2012
ICS:
13.060.20 Pitna voda Drinking 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 806-5
NORME EUROPÉENNE
EUROPÄISCHE NORM
February 2012
ICS 91.140.60
English Version
Specifications for installations inside buildings conveying water
for human consumption - Part 5: Operation and maintenance
Spécifications techniques relatives aux installations d'eau Technische Regeln für Trinkwasser-Installationen - Teil 5:
destinée à la consommation humaine à l'intérieur des Betrieb und Wartung
bâtiments - Partie 5: Exploitation et maintenance
This European Standard was approved by CEN on 19 November 2011.

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 CEN-CENELEC Management Centre 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 CEN-CENELEC Management Centre has the same
status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland,
Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom.

EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2012 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 806-5:2012: E
worldwide for CEN national Members.

Contents Page
Foreword .4
1 Scope .5
2 Normative references .5
3 Terms and definitions .7
4 General .7
5 Documentation .7
6 Operation .8
7 Interruptions to operation and disconnection .8
8 Resumption of supply .9
9 Damage and faults .9
9.1 Change in water quality .9
9.2 Insufficient water supply .9
9.3 Noise emission . 10
10 Alterations, extensions and refurbishment . 10
11 Accessibility of installation components . 10
12 Maintenance . 10
Annex A (normative) Frequencies for inspection and maintenance of components for potable
water installations. 12
Annex B (normative) Inspection and maintenance procedures . 14
B.1 Air gaps (protection device family A) . 14
B.2 Pipe interrupters (protection unit family D type C) . 14
B.3 Backflow preventer with controllable reduced pressure zone (protection unit BA) . 15
B.4 Backflow preventer with different non-controllable pressure zones (protection unit CA) . 17
B.5 Controllable antipollution check valves (protection units EA and EC) . 18
B.6 Non-controllable antipollution check valves (protection units EB and ED) . 19
B.7 Inline anti vacuum valve (protection units DA) . 19
B.8 Pipe interrupter with atmospheric vent and moving elements (protection unit DB) . 20
B.9 Hose union backflow preventer (protection unit HA) . 21
B.10 Hose union anti-vacuum valve (protection unit type HB) . 22
B.11 Automatic diverter (protection unit type HC) . 22
B.12 Hose union anti vacuum valve combined with check valve (protection unit family H type
D) . 23
B.13 Pressurised air inlet valve (protection unit family L type A) . 24
B.14 Pressurised air inlet valve combined with a check valve located downstream (protection
unit family L type B). 24
B.15 Hydraulic safety groups and expansion groups . 25
B.16 Pressure safety valves, expansion valves and combined temperature and pressure relief
valves . 26
B.17 Inline hot water supply tempering valves . 27
B.18 Pressure reducing valve . 27
B.19 Pressure booster pump . 28
B.20 Water heaters . 28
B.21 Fire fighting installations . 28
B.22 Pipework . 28
B.23 Water meters . 28
Annex C (normative) Inspection and maintenance procedures for water conditioning devices . 30
Bibliography . 31

Foreword
This document (EN 806-5:2012) has been prepared by Technical Committee CEN/TC "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 August 2012, and conflicting national standards shall be withdrawn at
the latest by August 2012.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights.
This document is intended for the use of engineers, architects, surveyors, contractors, installers, water
suppliers, consumers and regulatory inspectors.
This standard has been written in the form of a practice specification. It is the fifth part of the European
Standard "Specifications for installations inside buildings concerning water for human consumption" consisting
of five parts as follows:
 Part 1: General;
 Part 2: Design;
 Part 3: Pipe sizing — Simplified method;
 Part 4: Installation;
 Part 5: Operation and maintenance.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following
countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech
Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain,
Sweden, Switzerland, Turkey and the United Kingdom.
1 Scope
This European Standard specifies requirements and gives recommendations for the operation and
maintenance of potable water installations within buildings and for pipework outside buildings but within the
premises in accordance with EN 806-1.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references the latest edition of the referenced
document (including any amendments) applies.
EN 806-1:2000, Specifications for installations inside buildings conveying water for human consumption —
Part 1: General
EN 806-2, Specifications for installations inside buildings conveying water for human consumption —
Part 2: Design
EN 806-4:2010, Specifications for installations inside buildings conveying water for human consumption —
Part 4: Installation
EN 1487, Building valves — Hydraulic safety groups — Tests and requirements
EN 1488, Building valves — Expansion groups — Tests and requirements
EN 1489, Building valves — Pressure safety valves — Tests and requirements
EN 1490, Building valves — Combined temperature and pressure relief valves — Tests and requirements
EN 1491, Building valves — Expansion valves — Tests and requirements
EN 1567, Building valves — Water pressure reducing valves and combination water pressure reducing
valves — Requirements and tests
EN 1717:2000, Protection against pollution of potable water in water installations and general requirements of
devices to prevent pollution by backflow
EN 12729, Devices to prevent pollution by backflow of potable water — Controllable backflow preventer with
reduced pressure zone — Family B - Type A
EN 12897, Water supply — Specification for indirectly heated unvented (closed) storage water heaters
EN 13076, Devices to prevent pollution by backflow of potable water — Unrestricted air gap — Family A -
Type A
EN 13077, Devices to prevent pollution by backflow of potable water — Air gap with non-circular overflow
(unrestricted) — Family A - Type B
EN 13078, Devices to prevent pollution by backflow of potable water — Air gap with submerged feed
incorporating air inlet plus overflow — Family A, type C
EN 13079, Devices to prevent pollution by backflow of potable water — Air gap with injector — Family A -
Type D
EN 13433, Devices to prevent pollution by backflow of potable water — Mechanical disconnector, direct
actuated — Family G, type A
EN 13434, Devices to prevent pollution by backflow of potable water — Mechanical disconnector, hydraulic
actuated — Family G, type B
EN 13443-1, Water conditioning equipment inside buildings — Mechanical filters — Part 1: Particle rating
80 µm to 150 µm — Requirements for performances, safety and testing
EN 13443-2, Water conditioning equipment inside buildings — Mechanical filters — Part 2: Particle rating
1 µm to less than 80 µm — Requirements for performance, safety and testing
EN 13959, Anti-pollution check valves — DN 6 to DN 250 inclusive family E, type A, B, C and D
EN 14095, Water conditioning equipment inside buildings — Electrolytic treatment systems with aluminium
anodes — Requirements for performance, safety and testing
EN 14367, Non-controllable backflow preventer with different pressure zones — Family C, type A
EN 14451, Devices to preve
...