SIST EN 89:2015

SLOVENSKI STANDARD
SIST EN 89:2015
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
SIST EN 89:2015 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 89:2015

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SIST EN 89:2015

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.

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SIST EN 89:2015
EN 89:2015 (E)
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
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SIST EN 89:2015
EN 89:2015 (E)
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 . 64
6.9.2 Ignition devices . 64
6.9.3 Opening and safety times . 66
6.9.4 Endurance of thermostats and temperature limiters . 69
6.9.5 Operation of water temperature safety devices . 70
6.9.6 Combustion products evacuation safety device for type B appliances . 71
11BS
6.9.7 Pressure regulator . 73
6.9.8 Flue dampers . 74
6.10 Repeated draw-off . 74
6.10.1 Requirements . 74
6.10.2 Tests . 74
6.11 Nominal capacity . 75
6.11.1 Requirements . 75
6.11.2 Tests . 75
6.12 Combustion . 75
6.12.1 Requirements . 75
6.12.2 Tests . 75
6.13 Non-condensation in the flue (type B appliances) . 79
6.13.1 Requirements . 79
6.13.2 Tests . 79
6.14 Supplementary tests for condensing water heaters . 80
6.14.1 Formation of condensate. 80
6.14.2 Temperature of combustion products . 81
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SIST EN 89:2015
EN 89:2015 (E)
6.15 Prepurging . 81
6.15.1 Requirements . 81
6.15.2 Test . 82
6.16 Air monitoring device . 82
6.16.1 Type B and B . 82
12 13
6.16.2 Type C and other type B . 83
6.16.3 Gas/air ratio controls . 84
6.17 Functioning of the fan of a type C water heater . 85
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6.17.1 Requirements . 85
6.17.2 Tests . 85
6.18 Nitrogen oxides . 86
6.18.1 General . 86
6.18.2 Weighting . 87
6.19 Electrical power measurements . 88
6.19.1 Nominal conditions. 88
6.19.2 Standby . 88
7 Rational use of energy . 88
7.1 Efficiency . 88
7.1.1 Requirements . 88
7.1.2 Tests . 88
7.2 Maintenance consumption . 89
7.2.1 Requirements . 89
7.2.2 Tests . 90
8 Fitness for purpose . 91
8.1 Heating-up time . 91
8.1.1 Requirements . 91
8.1.2 Tests . 91
8.2 Mixing factor of the water temperature in the appliance . 91
8.2.1 Requirements . 91
8.2.2 Tests . 92
8.3 Draw-off limits causing operation of the burner . 92
8.3.1 Requirements . 92
8.3.2 Tests . 92
8.4 Continuous draw-off . 92
8.4.1 Requirements . 92
8.4.2 Tests . 93
8.5 Requirements for the specific rate. 93
8.6 Designation and measurement of reference temperatures of flue systems . 93
8.6.1 Nominal working combustion products temperature . 93
8.6.2 Overheat combustion products temperature . 93
8.6.3 Mechanical resistance and stability of ducts, terminal and fitting pieces. 93
8.7 Requirements for plastic in the combustion product evacuation ducts, terminals and

fitting pieces for appliances . 95
8.7.1 Thermal resistance . 95
8.7.2 Materials . 95
8.8 Requirements for elastomeric seals and elastomeric sealants in the combustion product

evacuation ducts, terminals and fitting pieces . 101
8.8.1 Characterization . 101
8.8.2 Long-term resistance to thermal load . 101
8.8.3 Long-term resistance to condensate exposure . 102
8.8.4 Cyclic condensate resistance test . 103
8.8.5 Relaxation behaviour . 104
8.8.6 Compression set . 104
8.8.7 Low temperature resistance . 105
8.8.8 Joints in elastomeric seals . 105
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SIST EN 89:2015
EN 89:2015 (E)
9 Marking and instructions . 105
9.1 Appliance marking . 105
9.1.1 Data plate. 105
9.1.2 Supplementary markings. 106
9.1.3 Packaging . 106
9.1.4 Warnings on the appliance and packaging . 107
9.1.5 Other information . 107
9.1.6 Additional marking for appliances with flue dampers . 107
9.2 Instructions . 107
9.2.1 Installation instructions . 107
9.2.2 Instructions for use . 111
9.2.3 Conversion instructions . 112
9.3 Presentation . 112
10 Ecodesign Data . 112
10.1 Water heating energy efficiency (η ) . 112
wh
10.2 Nitrogen oxides emissions . 113
10.3 Additional product information . 113
10.4 Storage volume . 113
10.5 Mixed water at 40 °C (V40) . 113
11 Energy Labelling Data . 113
11.1 General . 113
11
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