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BS EN 89:2015 Gas-fired storage water heaters for the production of domestic hot water, 2015
- 1 Scope
- 2 Normative references
- 3 Terms and definitions
- 4 Classification of storage water heaters [Go to Page]
- 4.1 General
- 4.2 Classification of gases
- 4.3 Appliance categories
- 4.4 Mode of supply of the combustion air and evacuation of the combustion products (appliance types)
- 5 Construction requirement [Go to Page]
- 5.1 Introduction
- 5.2 General [Go to Page]
- 5.2.1 Conversion to different gases
- 5.2.2 Materials [Go to Page]
- 5.2.2.1 General
- 5.2.2.2 Metallic materials
- 5.2.2.3 Enamelling - Physiological safety
- 5.2.2.4 Non-metallic materials
- 5.2.3 Design - Assembly - Strength
- 5.2.4 Accessibility - Ease of maintenance - Fitting and removal
- 5.2.5 Gas and water pipe connections [Go to Page]
- 5.2.5.1 General
- 5.2.5.2 Gas pipe connection
- 5.2.5.3 Water connections
- 5.2.6 Means of achieving soundness [Go to Page]
- 5.2.6.1 Soundness of the gas circuit
- 5.2.6.2 Soundness of the combustion circuit
- 5.2.7 Supply of combustion air and evacuation of the combustion products [Go to Page]
- 5.2.7.1 All appliances
- 5.2.7.2 Type B1 appliances
- 5.2.7.3 Type C water heaters
- 5.2.8 Checking the state of operation
- 5.2.9 Drainage
- 5.2.10 Electrical safety [Go to Page]
- 5.2.10.1 General
- 5.2.10.2 Controls
- 5.2.11 Operational safety in the event of failure or restoration of the auxiliary energy
- 5.2.12 Mechanical resistance and stability of ducts, terminal and fitting pieces [Go to Page]
- 5.2.12.1 General
- 5.2.12.2 Compressive strength
- 5.2.12.3 Lateral strength
- 5.3 Adjusting, control and safety devices [Go to Page]
- 5.3.1 General
- 5.3.2 User controls
- 5.3.3 Preset gas rate adjusters
- 5.3.4 Gas pressure regulator
- 5.3.5 Pressure test points
- 5.3.6 Ignition devices [Go to Page]
- 5.3.6.1 Ignition of the ignition burner
- 5.3.6.2 Ignition device for the main burner
- 5.3.7 Flame supervision device [Go to Page]
- 5.3.7.1 General
- 5.3.7.2 Thermoelectric flame supervision device
- 5.3.7.3 Automatic burner control systems
- 5.3.8 Combustion products discharge safety device
- 5.3.9 Protection against accidental overheating
- 5.3.10 Control thermostat
- 5.3.11 Automatic shut-off valves
- 5.3.12 Combustion products temperature limiter
- 5.3.13 Combined temperature and pressure relief valve
- 5.3.14 Flue damper [Go to Page]
- 5.3.14.1 General
- 5.3.14.2 Visual indication
- 5.3.14.3 Safety shut-off valve
- 5.3.14.4 Minimum passage
- 5.4 Main burner
- 5.5 Supplementary requirements for condensing water heaters [Go to Page]
- 5.5.1 Materials in contact with condensate
- 5.5.2 Discharge of condensate [Go to Page]
- 5.5.2.1 Requirements
- 5.5.2.2 Test conditions
- 5.5.3 Control of the combustion products temperature
- 5.5.4 Chemical composition of the condensate
- 6 Operational requirements [Go to Page]
- 6.1 Carrying out the tests [Go to Page]
- 6.1.1 General
- 6.1.2 Characteristics of the test gases
- 6.1.3 Requirements for preparation of the test gases
- 6.1.4 Choice of test gases
- 6.1.5 Test pressures
- 6.1.6 General test conditions [Go to Page]
- 6.1.6.1 General
- 6.1.6.2 Test room
- 6.1.6.3 Installation requirements
- 6.1.6.4 Water supply
- 6.1.6.5 Measurement uncertainties
- 6.1.6.6 Adjustment of the appliance
- 6.1.6.7 Electrical supply
- 6.1.6.8 Steady-state
- 6.1.6.9 Thermal equilibrium
- 6.2 Soundness [Go to Page]
- 6.2.1 Soundness of the gas circuit [Go to Page]
- 6.2.1.1 Requirements
- 6.2.1.2 Tests
- 6.2.2 Soundness of the combustion circuit and evacuation of the combustion products [Go to Page]
- 6.2.2.1 General
- 6.2.2.2 General requirements
- 6.2.2.3 Soundness of the air supply and combustion product circuit type C appliances
- 6.2.2.4 Soundness of the combustion product circuit of Type B appliances
- 6.2.3 Hydraulic test and soundness of the water circuit [Go to Page]
- 6.2.3.1 Requirements
- 6.2.3.2 Tests
- 6.3 Heat inputs [Go to Page]
- 6.3.1 General [Go to Page]
- 6.3.1.1 Heat input obtained
- 6.3.1.2 Corrected heat inputs for the verification of declared heat inputs
- 6.3.2 Nominal heat input [Go to Page]
- 6.3.2.1 Appliances without a preset adjuster
- 6.3.2.2 Appliances with preset adjusters
- 6.4 Temperature of the control knobs [Go to Page]
- 6.4.1 Requirements
- 6.4.2 Test
- 6.4.3 Supplementary requirements for type B14, B2 and B3 water heaters [Go to Page]
- 6.4.3.1 Requirement
- 6.4.3.2 Test
- 6.5 Temperature of the adjusting, control and safety devices [Go to Page]
- 6.5.1 Requirement
- 6.5.2 Test
- 6.6 Limit temperature of the walls and the test panels [Go to Page]
- 6.6.1 Side walls, front and top [Go to Page]
- 6.6.1.1 Requirements
- 6.6.1.2 Tests
- 6.6.2 Test panels [Go to Page]
- 6.6.2.1 Requirements
- 6.6.2.2 Tests
- 6.7 Ignition - Cross-lighting - Flame stability [Go to Page]
- 6.7.1 Normal conditions [Go to Page]
- 6.7.1.1 Requirements
- 6.7.1.2 Tests
- 6.7.2 Special conditions [Go to Page]
- 6.7.2.1 Type B1 appliances
- 6.7.2.2 Type C appliances
- 6.7.3 Reduction of supply to ignition burner [Go to Page]
- 6.7.3.1 Requirement
- 6.7.3.2 Test
- 6.7.4 Additional requirements relating to operation of the permanent ignition burner when the fan is stopped [Go to Page]
- 6.7.4.1 Requirements
- 6.7.4.2 Test
- 6.8 Temperature of combustion products in condensing appliances [Go to Page]
- 6.8.1 Requirements
- 6.8.2 Tests
- 6.9 Adjusting, control and safety devices [Go to Page]
- 6.9.1 General
- 6.9.2 Ignition devices [Go to Page]
- 6.9.2.1 Ignition burner ignition devices
- 6.9.2.2 Automatic ignition system of the ignition burner or main burner
- 6.9.3 Opening and safety times [Go to Page]
- 6.9.3.1 Thermoelectric device
- 6.9.3.2 Automatic control and safety system
- 6.9.4 Endurance of thermostats and temperature limiters [Go to Page]
- 6.9.4.1 General
- 6.9.4.2 Control thermostats
- 6.9.4.3 Overheat and combustion products evacuation safety limiters
- 6.9.5 Operation of water temperature safety devices [Go to Page]
- 6.9.5.1 Control thermostat
- 6.9.5.2 Water overheat safety device
- 6.9.6 Combustion products evacuation safety device for type B11BS appliances [Go to Page]
- 6.9.6.1 General
- 6.9.6.2 Nuisance shutdown
- 6.9.6.3 Shutdown time
- 6.9.6.4 Endurance
- 6.9.7 Pressure regulator [Go to Page]
- 6.9.7.1 Requirements
- 6.9.7.2 Tests
- 6.9.8 Flue dampers [Go to Page]
- 6.9.8.1 Resistance to high temperatures
- 6.9.8.2 Long-term performance
- 6.10 Repeated draw-off [Go to Page]
- 6.10.1 Requirements
- 6.10.2 Tests
- 6.11 Nominal capacity [Go to Page]
- 6.11.1 Requirements
- 6.11.2 Tests
- 6.12 Combustion [Go to Page]
- 6.12.1 Requirements
- 6.12.2 Tests [Go to Page]
- 6.12.2.1 General
- 6.12.2.2 Tests in still air
- 6.12.2.3 Water heaters using gas/air ratio controls
- 6.12.2.4 Supplementary tests
- 6.13 Non-condensation in the flue (type B appliances) [Go to Page]
- 6.13.1 Requirements
- 6.13.2 Tests [Go to Page]
- 6.13.2.1 Exceeding the dew point temperature
- 6.13.2.2 Determination of flue losses
- 6.13.2.3 Maximum useful efficiency
- 6.13.2.4 Minimum combustion products temperature
- 6.14 Supplementary tests for condensing water heaters [Go to Page]
- 6.14.1 Formation of condensate [Go to Page]
- 6.14.1.1 Requirements
- 6.14.1.2 Test conditions
- 6.14.2 Temperature of combustion products [Go to Page]
- 6.14.2.1 Requirement
- 6.14.2.2 Test conditions
- 6.15 Prepurging [Go to Page]
- 6.15.1 Requirements
- 6.15.2 Test
- 6.16 Air monitoring device [Go to Page]
- 6.16.1 Type B12 and B13 [Go to Page]
- 6.16.1.1 General
- 6.16.1.2 Supervision of the combustion air rate or combustion products rate
- 6.16.2 Type C and other type B [Go to Page]
- 6.16.2.1 General
- 6.16.2.2 Supervision of the combustion air rate or the combustion products rate
- 6.16.3 Gas/air ratio controls [Go to Page]
- 6.16.3.1 Leakage of control tubes
- 6.16.3.2 Supervision of the combustion air rate or the combustion products rate
- 6.17 Functioning of the fan of a type C4 water heater [Go to Page]
- 6.17.1 Requirements
- 6.17.2 Tests
- 6.18 Nitrogen oxides [Go to Page]
- 6.18.1 General
- 6.18.2 Weighting [Go to Page]
- 6.18.2.1 General
- 6.18.2.2 Storage water heaters with fixed output
- 6.18.2.3 Storage water heaters with adjustable output or automatic output variation
- 6.19 Electrical power measurements [Go to Page]
- 6.19.1 Nominal conditions
- 6.19.2 Standby
- 7 Rational use of energy [Go to Page]
- 7.1 Efficiency [Go to Page]
- 7.1.1 Requirements
- 7.1.2 Tests [Go to Page]
- 7.1.2.1 General
- 7.1.2.2 Determination of efficiency
- 7.2 Maintenance consumption [Go to Page]
- 7.2.1 Requirements
- 7.2.2 Tests
- 8 Fitness for purpose [Go to Page]
- 8.1 Heating-up time [Go to Page]
- 8.1.1 Requirements
- 8.1.2 Tests
- 8.2 Mixing factor of the water temperature in the appliance [Go to Page]
- 8.2.1 Requirements
- 8.2.2 Tests
- 8.3 Draw-off limits causing operation of the burner [Go to Page]
- 8.3.1 Requirements
- 8.3.2 Tests
- 8.4 Continuous draw-off [Go to Page]
- 8.4.1 Requirements
- 8.4.2 Tests
- 8.5 Requirements for the specific rate
- 8.6 Designation and measurement of reference temperatures of flue systems [Go to Page]
- 8.6.1 Nominal working combustion products temperature
- 8.6.2 Overheat combustion products temperature
- 8.6.3 Mechanical resistance and stability of ducts, terminal and fitting pieces [Go to Page]
- 8.6.3.1 General
- 8.6.3.2 Compressive strength
- 8.6.3.3 Lateral strength
- 8.7 Requirements for plastic in the combustion product evacuation ducts, terminals and fitting pieces for appliances [Go to Page]
- 8.7.1 Thermal resistance
- 8.7.2 Materials [Go to Page]
- 8.7.2.1 Characterization
- 8.7.2.2 Long-term resistance to thermal load
- 8.7.2.3 Criteria for testing long term resistance to thermal load
- 8.7.2.4 Resistance to condensing/non-condensing cycling
- 8.7.2.5 Resistance to ultraviolet radiation (UV)
- 8.7.2.6 Geometrical stability
- 8.7.2.7 Reaction to fire
- 8.8 Requirements for elastomeric seals and elastomeric sealants in the combustion product evacuation ducts, terminals and fitting pieces [Go to Page]
- 8.8.1 Characterization
- 8.8.2 Long-term resistance to thermal load
- 8.8.3 Long-term resistance to condensate exposure
- 8.8.4 Cyclic condensate resistance test
- 8.8.5 Relaxation behaviour
- 8.8.6 Compression set
- 8.8.7 Low temperature resistance
- 8.8.8 Joints in elastomeric seals [Go to Page]
- 8.8.8.1 Durability
- 8.8.8.2 Strength
- 9 Marking and instructions [Go to Page]
- 9.1 Appliance marking [Go to Page]
- 9.1.1 Data plate
- 9.1.2 Supplementary markings
- 9.1.3 Packaging
- 9.1.4 Warnings on the appliance and packaging [Go to Page]
- 9.1.4.1 General
- 9.1.4.2 For all appliances
- 9.1.4.3 For type B11 appliances
- 9.1.4.4 For type B11BS appliances
- 9.1.5 Other information
- 9.1.6 Additional marking for appliances with flue dampers
- 9.2 Instructions [Go to Page]
- 9.2.1 Installation instructions [Go to Page]
- 9.2.1.1 Introduction
- 9.2.1.2 General
- 9.2.1.3 For installation and adjustment of the gas circuit
- 9.2.1.4 For installation of the domestic hot water
- 9.2.1.5 For installation of the combustion products evacuation circuit
- 9.2.1.6 Supplementary instructions for condensing appliances
- 9.2.1.7 Appliances with flue dampers
- 9.2.2 Instructions for use [Go to Page]
- 9.2.2.1 Introduction
- 9.2.2.2 General
- 9.2.2.3 For type B11BS appliances
- 9.2.2.4 For type C appliances
- 9.2.2.5 Supplementary use and maintenance instructions for condensing appliances
- 9.2.2.6 Appliances with flue dampers
- 9.2.3 Conversion instructions
- 9.3 Presentation
- 10 Ecodesign Data [Go to Page]
- 10.1 Water heating energy efficiency (ηwh)
- 10.2 Nitrogen oxides emissions
- 10.3 Additional product information
- 10.4 Storage volume
- 10.5 Mixed water at 40 °C (V40)
- 11 Energy Labelling Data [Go to Page]
- 11.1 General
- 11.2 Printed label [Go to Page]
- 11.2.1 General
- 11.2.2 Annual Electricity Consumption (AEC)
- 11.2.3 Annual Fuel Consumption (AFC)
- 11.2.4 Sound power level (LWA)
- 11.3 Product fiche
- 11.4 Technical documentation
- 12 Figures referenced in this standard
- Annex A (informative)National situations [Go to Page]
- A.1 General
- A.2 Gas and water connections in common use in the various countries
- A.3 Flue pipe diameters in force in the various countries (see 5.2.7)
- Annex B (normative)Test apparatus for type C11 appliances (see 6.7.2.2.1)
- Annex C (normative)Test apparatus for type C21 appliances (see 6.7.2.2.2.3)
- (informative)Examples of composition of the gas circuit [Go to Page]
- D.1 Direct ignition of the main burner (MB)
- D.2 Ignition of the main burner by an ignition burner (IB) [Go to Page]
- D.2.1 Permanent IB
- D.2.2 Intermittent IB
- D.2.3 Alternating IB
- Annex E (normative)Soundness test - Volumetric method [Go to Page]
- E.1 Equipment
- E.2 Test method
- Annex F (informative)Guidelines for extension to other categories
- Annex G (informative)A–deviations
- Annex H (informative)NOx conversion calculation
- Annex I (informative)Requirements and test methods for separate air supply and combustion products evacuation ducts of type C6 water heaters [Go to Page]
- I.1 Requirements [Go to Page]
- I.1.1 Pressure losses
- I.1.2 Pressure loss under the influence of wind
- I.1.3 Suction under the influence of wind
- I.1.4 Re-circulation of the combustion products
- I.2 Test methods [Go to Page]
- I.2.1 Pressure loss in still air
- I.2.2 Pressure loss under the influence of wind
- I.2.3 Suction under the influence of wind
- I.2.4 Re-circulation of the combustion products
- I.2.5 Wind test conditions
- Annex J (normative)Lists of materials currently used [Go to Page]
- J.1 General
- J.2 Special types of steel
- J.3 Copper and copper alloys
- J.4 Plastic materials
- 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
- Annex L (normative)Parts in copper or copper alloys
- Annex M (informative)Compilation of the test conditions for the various gas families
- 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
- Annex ZA (informative)Clauses of this European Standard addressing essential requirements or other provisions of UE Directives
- Annex ZB (informative)Relationship between this European Standard and the requirements of Commission Regulation (EU) No 814/2013
- Annex ZC (informative)Relationship between this European Standard and the requirements of Commission Delegated Regulation (EU) No 812/2013 [Go to Page]