EN 89:2015

SLOVENSKI STANDARD
01-julij-2015
1DGRPHãþD
SIST EN 89:2001
SIST EN 89:2001/A1:2001
SIST EN 89:2001/A2:2002
SIST EN 89:2001/A3:2007
SIST EN 89:2001/A4:2007
Akumulacijski plinski grelniki vode za pripravo sanitarne tople vode
Gas-fired storage water heaters for the production of domestic hot water
Gasbeheizte Vorrats-Wasserheizer für den sanitären Gebrauch
Appareils de production d'eau chaude par accumulation pour usages sanitaires utilisant
les combustibles gazeux
Ta slovenski standard je istoveten z: EN 89:2015
ICS:
91.140.65 Oprema za ogrevanje vode Water heating equipment
97.100.20 Plinski grelniki Gas heaters
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN 89
NORME EUROPÉENNE
EUROPÄISCHE NORM
May 2015
ICS 91.140.65 Supersedes EN 89:1999
English Version
Gas-fired storage water heaters for the production of domestic
hot water
Appareils de production d'eau chaude par accumulation Gasbeheizte Vorrats-Wasserheizer für den sanitären
pour usages sanitaires utilisant les combustibles gazeux Gebrauch
This European Standard was approved by CEN on 29 November 2014.

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, Former Yugoslav Republic of Macedonia, 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

CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2015 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 89:2015 E
worldwide for CEN national Members.

Contents Page
Foreword .7
1 Scope .8
2 Normative references .8
3 Terms and definitions . 10
4 Classification of storage water heaters . 23
4.1 General . 23
4.2 Classification of gases . 23
4.3 Appliance categories . 23
4.4 Mode of supply of the combustion air and evacuation of the combustion products
(appliance types). 23
5 Construction requirement . 23
5.1 Introduction . 23
5.2 General . 24
5.2.1 Conversion to different gases . 24
5.2.2 Materials . 24
5.2.3 Design - Assembly - Strength . 27
5.2.4 Accessibility - Ease of maintenance - Fitting and removal . 27
5.2.5 Gas and water pipe connections . 27
5.2.6 Means of achieving soundness . 28
5.2.7 Supply of combustion air and evacuation of the combustion products . 29
5.2.8 Checking the state of operation . 32
5.2.9 Drainage . 32
5.2.10 Electrical safety. 32
5.2.11 Operational safety in the event of failure or restoration of the auxiliary energy . 34
5.2.12 Mechanical resistance and stability of ducts, terminal and fitting pieces. 34
5.3 Adjusting, control and safety devices . 35
5.3.1 General . 35
5.3.2 User controls . 36
5.3.3 Preset gas rate adjusters . 37
5.3.4 Gas pressure regulator . 37
5.3.5 Pressure test points . 37
5.3.6 Ignition devices . 38
5.3.7 Flame supervision device . 38
5.3.8 Combustion products discharge safety device . 39
5.3.9 Protection against accidental overheating . 40
5.3.10 Control thermostat. 40
5.3.11 Automatic shut-off valves . 40
5.3.12 Combustion products temperature limiter . 41
5.3.13 Combined temperature and pressure relief valve . 41
5.3.14 Flue damper . 41
5.4 Main burner . 42
5.5 Supplementary requirements for condensing water heaters . 42
5.5.1 Materials in contact with condensate . 42
5.5.2 Discharge of condensate . 43
5.5.3 Control of the combustion products temperature . 43
5.5.4 Chemical composition of the condensate . 43
6 Operational requirements . 43
6.1 Carrying out the tests . 43
6.1.1 General . 43
6.1.2 Characteristics of the test gases . 44
6.1.3 Requirements for preparation of the test gases . 44
6.1.4 Choice of test gases . 44
6.1.5 Test pressures . 44
6.1.6 General test conditions . 44
6.2 Soundness . 48
6.2.1 Soundness of the gas circuit . 48
6.2.2 Soundness of the combustion circuit and evacuation of the combustion products . 49
6.2.3 Hydraulic test and soundness of the water circuit . 53
6.3 Heat inputs . 54
6.3.1 General . 54
6.3.2 Nominal heat input . 55
6.4 Temperature of the control knobs . 56
6.4.1 Requirements . 56
6.4.2 Test . 56
6.4.3 Supplementary requirements for type B , B and B water heaters . 57
14 2 3
6.5 Temperature of the adjusting, control and safety devices . 57
6.5.1 Requirement . 57
6.5.2 Test . 57
6.6 Limit temperature of the walls and the test panels . 57
6.6.1 Side walls, front and top . 57
6.6.2 Test panels . 58
6.7 Ignition - Cross-lighting - Flame stability . 59
6.7.1 Normal conditions . 59
6.7.2 Special conditions . 60
6.7.3 Reduction of supply to ignition burner . 63
6.7.4 Additional requirements relating to operation of the permanent ignition burner when the

fan is stopped . 63
6.8 Temperature of combustion products in condensing appliances . 64
6.8.1 Requirements . 64
6.8.2 Tests . 64
6.9 Adjusting, control and safety devices . 64
6.9.1 General .
...