EN 89:2015
(Main)Gas-fired storage water heaters for the production of domestic hot water
Gas-fired storage water heaters for the production of domestic hot water
This European Standard defines the specifications and test methods for the construction, safety, rational use of energy and fitness for purpose, environment and classification and marking of gas-fired storage water heaters for domestic hot water uses, hereafter called "appliance".
This European Standard applies to appliances:
- of types B11, B11BS, C11, C12, C13, C21, C31,, C32, C33, C42, C43, C51,C52, C53, C62, C63, C72, C73, C81 connected to an individual flue duct, C82 and C83 according to CEN/TR 1749;
- fitted with atmospheric burners;
- using one or more combustible gases corresponding to the three gas families and the pressures indicated in EN 437;
- of nominal heat input not exceeding 150 kW (net calorific value);
- fitted with electrically operated mechanical flue dampers that are positioned downstream of the heat exchanger.
Gasbeheizte Vorrats-Wasserheizer für den sanitären Gebrauch
Die vorliegende Europäische Norm legt die Anforderungen und die Prüfverfahren hinsichtlich der Konstruktion, der Sicherheit, des rationellen Energieeinsatzes und der Gebrauchsgüte, der Umweltbelastung sowie die Einteilung und Kennzeichnung von gasbeheizten Vorratswasserheizern für den sanitären Bereich (nachfolgend Wasserheizer genannt) fest.
Diese Europäische Norm gilt für Wasserheizer:
- ausgewählte Bauarten B1, B2, B3, B5, C1, C2, C3, C4, C5, C6, C7, C8, C9 entsprechend CEN/TR 1749.
- mit atmosphärischen Brennern;
- die ein oder mehrere Gase der drei Gasfamilien mit den entsprechenden Drücken nach EN 437 verwenden;
- mit einer Nennwärmebelastung nicht über 150 kW (bezogen auf den Heizwert);
- die mit elektrisch betriebenen mechanischen Abgasklappen hinter dem Wärmeübertrager ausgerüstet sind.
Appareils de production d'eau chaude par accumulation pour usages sanitaires utilisant les combustibles gazeux
La présente Norme européenne définit les spécifications et les méthodes d'essai relatives à la construction, la sécurité, l'utilisation rationnelle de l'énergie, l'aptitude à la fonction, l'environnement, la classification et le marquage des appareils de production d'eau chaude par accumulation pour usages sanitaires utilisant les combustibles gazeux, appelés ci-après « appareil ».
La présente norme s'applique aux appareils :
- sélectionnés parmi les types B1, B2, B3, B5, C1, C2, C3, C4, C5, C6, C7, C8, C9 selon le CEN/TR 1749 ;
- équipés de brûleurs atmosphériques ;
- utilisant un ou plusieurs combustibles gazeux correspondant aux trois familles de gaz et aux pressions indiquées dans l'EN 437 ;
- de débit calorifique nominal inférieur ou égal à 150 kW (pouvoir calorifique inférieur) ;
- équipés de registres de tirage mécaniques à commande électrique positionnés en aval de l'échangeur de chaleur et soumis à essai en tant que partie intégrante de l'appareil de production d'eau chaude.
Akumulacijski plinski grelniki vode za pripravo sanitarne tople vode
General Information
Relations
Standards Content (Sample)
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 . 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
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
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
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
11.2 Printed label . 113
11.2.1 General . 113
11.2.2 Annual Electricity Consumption (AEC) . 114
11.2.3 Annual Fuel Consumption (AFC) . 114
11.2.4 Sound power level (L ) . 114
WA
11.3 Product fiche . 114
11.4 Technical documentation . 114
12 Figures referenced in this standard . 115
Annex A (informative) National situations . 126
Annex B (normative) Test apparatus for type C appliances (see 6.7.2.2.1) . 130
Annex C (normative) Test apparatus for type C appliances (see 6.7.2.2.2.3) . 135
Annex D (informative) Examples of composition of the gas circuit . 136
Annex E (normative) Soundness test - Volumetric method . 138
Annex F (informative) Guidelines for extension to other categories. 139
Annex G (informative) A–deviations . 140
Annex H (informative) NO conversion calculation . 141
x
Annex I (informative) Requirements and test methods for separate air supply and combustion
water heaters. 142
products evacuation ducts of type C
Annex J (normative) Lists of materials currently used . 147
Annex K (normative) Test methods to determine the effects of to long-term thermal load, long-
term condensate exposure, condensing/ non- condensing cycling and resistance to UV
radiation. 149
Annex L (normative) Parts in copper or copper alloys . 150
Annex M (informative) Compilation of the test conditions for the various gas families . 151
Annex N (informative) Alternative Method for the determination of the nominal heat input or the
maximum and minimum heat input (according to 6.3.1) for appliances using a pneumatic
gas/air ratio control system. 153
Annex ZA (informative) Clauses of this European Standard addressing essential requirements or
other provisions of UE Directives . 154
Annex ZB (informative) Relationship between this European Standard and the requirements of
Commission Regulation (EU) No 814/2013 . 157
Annex ZC (informative) Relationship between this European Standard and the requirements of
Commission Delegated Regulation (EU) No 812/2013 . 158
Bibliography . 159
Foreword
This document (EN 89:2015) has been prepared by Technical Committee CEN/TC 48 “Domestic gas-fired
water heaters”, 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 November 2015 and conflicting national standards shall be withdrawn
at the latest by November 2015.
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 supersedes EN 89:1999.
This document has been prepared under a mandate given to CEN by the European Commission and the
European Free Trade Association, and supports essential requirements of EU Directive(s).
For relationship with EU Directive(s), see informative Annex ZA, Annex ZB or Annex ZC, which are integral
parts of this document.
The present standard deals with:
— safety;
— rational use of energy;
— fitness for purpose.
It gives specific requirements relative to:
— appliances with burners with a fan;
— combustion products discharge orifice closure devices;
— type C water heaters with a fan incorporated in the combustion air supply circuit or in the combustion
products evacuation circuit;
— condensing water heaters;
— measurement of NO emissions of water heaters;
x
— the metallic, plastic and other non-metallic materials that are used in water heaters and which come into
contact with water intended for human consumption. It is intended to ensure that products of this kind
complying with these requirements meet current technological development and requirements with regard
to the service life of the water heaters and their physiological suitability;
— the growth of microorganism on materials in contact with drinking water.
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, 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 the United Kingdom.
1 Scope
This European Standard defines the specifications and test methods for the construction, safety, rational use
of energy and fitness for purpose, environment and classification and marking of gas-fired storage water
heaters for domestic hot water uses, hereafter called “appliance”.
This European Standard applies to appliances:
— of selected types B , B , B , B , C , C , C C , C , C , C , C , C according to CEN/TR 1749;
1 2 3 5 1 2 3, 4 5 6 7 8 9
— fitted with atmospheric burners;
— using one or more combustible gases corresponding to the three gas families and the pressures indicated
in EN 437;
— of nominal heat input not exceeding 150 kW (net calorific value);
— fitted with electrically operated mechanical flue dampers that are positioned downstream of the heat
exchanger.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated references,
the latest edition of the referenced document (including any amendments) applies.
EN 88-1:2011, Pressure regulators and associated safety devices for gas appliances ― Part 1: Pressure
regulators for inlet pressures up to and including 50 kPa
EN 125, Flame supervision devices for gas burning appliances ― Thermoelectric flame supervision devices
EN 126, Multifunctional controls for gas burning appliances
EN 161, Automatic shut-off valves for gas burners and gas appliances
EN 298:2012, Automatic burner control systems for burners and appliances burning gaseous or liquid fuels
EN 437, Test gases ― Test pressures ― Appliance categories
EN 513, Unplasticized polyvinylchloride (PVC-U) profiles for the fabrication of windows and doors ―
Determination of the resistance to artificial weathering
EN 549, Rubber materials for seals and diaphragms for gas appliances and gas equipment
EN 573-1, Aluminium and aluminium alloys ― Chemical composition and form of wrought products ― Part 1:
Numerical designation system
EN 1057, Copper and copper alloys ― Seamless, round copper tubes for water and gas in sanitary and
heating applications
CR 1404, Determination of emissions from appliances burning gaseous fuels during type-testing
EN 1490, Building valves ― Combined temperature and pressure relief valves ― Tests and requirements
CEN/TR 1749 European scheme for the classification of gas appliances according to the method of
evacuation of the combustion products (types)
EN 1856-1:2009, Chimneys ― Requirements for metal chimneys ― Part 1: System chimney products
EN 10088-1, Stainless steels ― Part 1: List of stainless steels
EN 10226-1, Pipe threads where pressure tight joints are made on the threads ― Part 1: Taper external
threads and parallel internal threads ― Dimensions, tolerances and designation
EN 13203-1, Gas-fired domestic appliances producing hot water ― Appliances not exceding 70 kW heat input
and 300 l water storage capacity ― Part 1: Assessment of performance of hot water deliveries
EN 13203-2, Gas-fired domestic appliances producing hot water ― Appliances not exceeding 70 kW heat
input and 300 l water storage capacity ― Part 2: Assessment of energy consumption
EN 13216-1, Chimneys ― Test methods for system chimneys ― Part 1: General test methods
EN 13501-1, Fire classification of construction products and building elements ― Part 1: Classification using
data from reaction to fire tests
EN 13611:2007+A2:2011, Safety and control devices for gas burners and gas burning appliances ― General
requirements
EN 14241-1:2013, Chimneys ― Elastomeric seals and elastomeric sealants ― Material requirements and test
methods ― Part 1: Seals in flue liners
EN 14459, Control functions in electronic systems for gas burners and gas burning appliances ― Methods for
classification and assessment
EN 14471:2013, Chimneys ― System chimneys with plastic flue liners ― Requirements and test methods
EN 60335-1:2012, Household and similar electrical appliances ― Safety ― Part 1: General requirements
(IEC 60335-1:2010)
EN 60335-2-102, Household and similar electrical appliances ― Safety ― Part 2-102: Particular requirements
for gas, oil and solid-fuel burning appliances having electrical connections (IEC 60335-2-102)
EN 60730-2-9, Automatic electrical controls for household and similar use ― Part 2-9: Particular requirements
for temperature sensing controls (IEC 60730-2-9)
EN ISO 178, Plastics ― Determination of flexural properties (ISO 178)
EN ISO 179-1, Plastics ― Determination of Charpy impact properties ― Part 1: Non-instrumented impact test
(ISO 179-1)
EN ISO 228-1, Pipe threads where pressure-tight joints are not made on the threads ― Part 1: Dimensions,
tolerances and designation (ISO 228-1)
EN ISO 527-1, Plastics ― Determination of tensile properties ― Part 1: General principles (ISO 527-1)
EN ISO 527-2, Plastics ― Determination of tensile properties ― Part 2: Test conditions for moulding and
extrusion plastics (ISO 527-2)
EN ISO 1183 (all parts), Plastics — Methods for determining the density of non-cellular plastics (ISO 1183)
EN ISO 3166-1, Codes for the representation of names of countries and their subdivisions ― Part 1: Country
codes (ISO 3166-1)
EN ISO 9969, Thermoplastics pipes ― Determination of ring stiffness (ISO 9969)
ISO 37, Rubber, vulcanized or thermoplastic — Determination of tensile stress-strain properties
ISO 188, Rubber, vulcanized or thermoplastic — Accelerated ageing and heat resistance tests
ISO 262, ISO general purpose metric screw threads — Selected sizes for screws, bolts and nuts
ISO 301, Zinc alloy ingots intended for castings
ISO 815-1, Rubber, vulcanized or thermoplastic — Determination of compression set — Part 1: At ambient or
elevated temperatures
ISO 1817, Rubber, vulcanized or thermoplastic — Determination of the effect of liquids
ISO 2781, Rubber, vulcanized or thermoplastic — Determination of density
ISO 6914, Rubber, vulcanized or thermoplastic — Determination of ageing characteristics by measurement of
stress relaxation in tension
ISO 7005, Pipe flanges
ISO 7619, Rubber — Determination of indentation hardness by means of pocket hardness meters
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
water heater
3.1.1
storage water heater
appliance which heats and stores a quantity of water contained in a vessel at a pre-set temperature and which
has the heating source located inside the vessel
3.1.2
fixed temperature storage water heater
appliance fitted with a non-adjustable thermostat which controls the water temperature to a given setting
3.1.3
adjustable temperature storage water heater
appliance fitted with a thermostat controlling the water temperature with the set point value of this device
being adjustable between two values, one being the minimum and the other the maximum
3.1.4
open storage water heater
appliance with a vent to the atmosphere
3.1.5
closed storage water heater
appliance which has no vent to the atmosphere
3.1.6
condensing storage water heater
appliance in which under normal operating conditions and for normal inlet water temperatures the water
vapour of the combustion products is partially condensed in order to use the latent heat of this water vapour to
produce hot water
3.2
characteristics of the gas and electricity supplies
3.2.1
reference condition
these correspond to 15 °C, 1 013, 25 mbar, unless otherwise specified
[SOURCE: E
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