1、BRITISH STANDARDBS EN 15456:2008Heating boilers Electrical power consumption for heat generators System boundaries MeasurementsICS 91.140.10g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60
2、g3g38g50g51g60g53g44g42g43g55g3g47g36g58BS EN 15456:2008This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 May 2008 BSI 2008ISBN 978 0 580 56451 2National forewordThis British Standard is the UK implementation of EN 15456:2008.The UK particip
3、ation in its preparation was entrusted to Technical Committee RHE/10, Heating boilers.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for i
4、ts correct application.Compliance with a British Standard cannot confer immunity from legal obligations. Amendments/corrigenda issued since publicationDate CommentsEUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 15456April 2008ICS 91.140.10English VersionHeating boilers - Electrical power consumpt
5、ion for heatgenerators - System boundaries - MeasurementsChaudires de chauffage - Puissance lectrique desgnrateurs de chaleur - Limites du systme - MesuragesHeizkessel - Elektrische Leistungsaufnahme frWrmeerzeuger - Systemgrenzen - MessungenThis European Standard was approved by CEN on 29 February
6、2008.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained o
7、n application to the CEN 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 translationunder the responsibility of a CEN member into its own language and notified to the CEN Management Cen
8、tre has the same status as theofficial versions.CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland,
9、 Portugal,Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: rue de Stassart, 36 B-1050 Brussels 2008 CEN All rights of exploitation in any form and by any mea
10、ns reservedworldwide for CEN national Members.Ref. No. EN 15456:2008: EEN 15456:2008 (E) 2 Contents Page Foreword3 Introduction .4 1 Scope 5 2 Normative references 5 3 Terms and definitions .6 4 System boundaries for measurements .8 4.1 General8 4.2 System with circulator (pump) for heat generation
11、.8 4.3 System with a single circulator (pump) for heat generation and heat distribution 9 4.4 System without any circulator (pump) 9 4.5 Burner .9 5 Measurement9 5.1 Heating boiler.9 5.1.1 Setting of the heating boiler .9 5.1.2 Determination of the water side resistance 10 5.1.3 Measurement modes .1
12、0 5.2 Forced-draught burners10 5.3 Pellet burner .11 5.4 Oil stoves11 5.5 Determination of the water side resistance 11 5.6 Test report and documentation11 Annex A (normative) Test report12 A.1 Summary.12 A.2Testing the electrical power consumption Paux13 Annex B (informative) Determination of the w
13、ater side resistance15 B.1 Operating conditions.15 B.1.1 General15 B.1.2 Boilers without integrated pump15 B.1.3 Boilers with integrated pump .16 B.1.4 Determination of operating conditions of boilers with integrated pump.18 Bibliography 19 BS EN 15456:2008EN 15456:2008 (E) 3 Foreword This document
14、(EN 15456:2008) has been prepared by Technical Committee CEN/TC 57 “Central heating boilers”, the secretariat of which is held by DIN. 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 October 2008,
15、 and conflicting national standards shall be withdrawn at the latest by October 2008. 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.
16、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, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy,
17、Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. BS EN 15456:2008EN 15456:2008 (E) 4 Introduction This document specifies the measurement methods for evaluating auxiliary power consumption. Th
18、is document also provides the parameters for boilers necessary for the calculation of the total power consumption according to prEN 15316-4-1 4. BS EN 15456:2008EN 15456:2008 (E) 5 1 Scope This European Standard applies to heating boilers (e.g. with forced-draught burners (unit) and burners equipped
19、 with a fan including all components specified by the manufacturer to be required for the designed boiler operation. This European Standard also applies to heating boilers sold without burners. This European Standard covers the required definitions, the system boundaries, the measurements for the de
20、termination of the electrical power consumption and, where applicable, the water side resistance in order to establish the electric auxiliary energy for: Oil-fired forced-draught burners in accordance with EN 267; Automatic forced-draught burners for gaseous fuels in accordance with EN 676; Flued oi
21、l stoves with vaporizing burners in accordance with EN 1; Heating boilers sold without burners for: Oil-fired forced-draught burners in accordance with EN 303-1 6, EN 303-2 7 and EN 304; Condensing boilers for liquid fuels in accordance with EN 15034; Room sealed boilers for fuel oil in accordance w
22、ith EN 15035; Heating boilers - Heating boilers with forced-draught burners - Nominal heat output not exceeding 10 MW and maximum operating temperature of 110 C in accordance with EN 14394; Pellet burners for small heating boilers in accordance with EN 15270. NOTE All measurements for boilers are ca
23、rried out in the heating mode only. For hot water production this mode is also relevant. 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
24、of the referenced document (including any amendments) applies. EN 1, Flued oil stoves with vaporising burners EN 267, Forced draught oil burners Definitions, requirements, testing, marking EN 304:1992, Heating boilers Test code for heating boilers for atomizing oil burners EN 676, Automatic forced d
25、raught burners for gaseous fuels EN 14394, Heating boilers Heating boilers with forced draught burners Nominal heat output not exceeding 10 MW and maximum operating temperature of 110 C EN 15034, Heating boilers Condensing heating boilers for fuel oil EN 15035, Heating boilers Special requirements f
26、or oil fired room sealed units up to 70 kW BS EN 15456:2008EN 15456:2008 (E) 6 EN 15270, Pellet burners for small heating boilers Definitions, requirements, testing, marking 3 Terms and definitions For the purposes of this European Standard, the following terms and definitions apply. 3.1 reference c
27、onditions 15 C and 1 013,25 mbar, unless otherwise stated 3.2 fuel mass flow Bm net calorific value Hithe water produced by combustion is assumed to be in the vapour state. NOTE The calorific value is expressed: either in mega joules per cubic metre (MJ/m) of dry gas under the reference conditions;
28、or in mega joules per kilogram (MJ/kg) of dry gas; EN 437:2003 3 or in mega joules per kilogram (MJ/kg) of oil. 3.7 nominal heat input PNmaximal value of heat input for the heating mode declared by the manufacturer NOTE Nominal heat input is expressed in kilowatts. 3.8 nominal heat output Nmaximal v
29、alue of heat output declared by the manufacturer NOTE Nominal heat output is expressed in kilowatts. 3.9 test room room in which the heat generator has been installed during the measurement in which the ambient parameters corresponding to the reference conditions are found 3.10 residual pump head hR
30、available pump head after deduction of the hydraulic resistance of the boiler NOTE Residual pump heat is expressed in metre. 3.11 stand-by operation operating mode without any heat demand, the system immediately starts up in the required mode as soon as there will be a heat demand 3.12 temperature s
31、pread temperature difference between flow and return connection of the heat generator 3.13 unit assembly of a boiler and a forced-draught burner, offered as a factory-assembled unit BS EN 15456:2008EN 15456:2008 (E) 8 3.14 heat input Pproduct of the volumetric flow or mass flow and the net or gross
32、calorific value of the fuel referred to the same reference conditions: iBHiN,HVP = integrated fuel supply (pump); integrated oil pre-heater; BS EN 15456:2008EN 15456:2008 (E) 9 supply of combustion air (air fan), respectively flue gas removal (flue exhauster); control and monitoring devices (program
33、ming units, monitoring device/detector, etc.); regulating devices with a complete equipment offered sometimes even as an option; circulator (pump) for heat generation. NOTE If the circulator (pump) is used for heat generation and for heating distribution the pump has to be measured separately accord
34、ing to 4.3. 4.3 System with a single circulator (pump) for heat generation and heat distribution In addition to 4.2 the components which are not required for the heat generation; e.g. heat distribution circulator (pump), valves for heat distribution shall be measured and stated separately. 4.4 Syste
35、m without any circulator (pump) According to 4.2 without any circulator (pump). 4.5 Burner The following components shall be part of the forced-draught burner and also covered by measurement provided they are required for the designed operation: shut-off valves in the fuel supply; integrated fuel su
36、pply (pump); integrated oil pre-heater; supply of combustion air (air fan); control and monitoring devices (programming units, monitoring/detector, etc.). 5 Measurement 5.1 Heating boiler 5.1.1 Setting of the heating boiler For the measurements, at least two different input points corresponding to t
37、he nominal heat input PNat full load 100 % and at part load 30 % as well as at stand-by operation of the heating boiler shall be taken as a basis to determine the respective values with respect to the required electrical power consumption Paux. All measurements shall be carried out in the heating mo
38、de. The test shall be carried out in accordance with the requirements of the efficiency measurement of the relevant appliance standard. The measurements shall be carried out with a spread of (20 2) K between flow and return at nominal heat input. Before starting with the measurement, the boiler shal
39、l be set in accordance with the manufacturers instructions. The measurements shall be carried out in accordance with the requirements for the type test of the respective appliance standard. BS EN 15456:2008EN 15456:2008 (E) 10 5.1.2 Determination of the water side resistance For all heat generators
40、the water side resistance, which is equal to the nominal heat input PN , shall be determined in a first step with a temperature difference of 20 K between flow and return. The tests shall be carried out according to 5.6 and A.10 of EN 304:1992. NOTE An additional determination procedure is proposed,
41、 see Annex B. 5.1.3 Measurement modes 5.1.3.1 At nominal heat input PNFor boilers with or without a setting range, the electrical power consumption Pauxshall be determined at nominal heat input PN. The electrical power consumption at nominal heat input PNshall be measured: for heating boilers with o
42、il-fired forced-draught burner under the conditions of EN 304 (efficiency); for condensing boilers for liquid fuels under the conditions of EN 15034; for room sealed boilers under the conditions of EN 15035. 5.1.3.2 At part load of 0,3 PNFor boilers the electrical power consumption shall be determin
43、ed at part load under the conditions of EN 304 (efficiency), EN 15034 or EN 15035. It shall be ensured that the electrical power consumption Paux 30is measured only by using the direct procedure mode n 2 - to determine the 30 % part load efficiency for heating boilers. 5.1.3.3 At stand-by operation
44、One measurement shall be carried out at stand-by operation with heat demand of the boiler, where the electrical power consumption Paux sbfor stand-by loss shall be measured under the conditions of EN 304, EN 15034 or EN 15035. An additional measurement shall be carried out at stand-by operation with
45、out heat demand of the boiler for the determination of the electrical power consumption of the control and monitoring devices. 5.1.3.4 Electrical power consumption of the regulation with burner in off-mode The boiler shall be switched to power-on. Only the electrical power consumption of the boiler
46、control shall be measured. There shall be no heating to compensate the stand-by loss. 5.2 Forced-draught burners Forced-draught burners shall only be tested in the measuring points, point 1 and point 4, of the test diagram according to EN 267 and EN 676 respectively. The electrical power consumption
47、 Paux at permanent operation shall be measured in the points at the test diagrams according to EN 267 and EN 676 respectively. The electrical power consumption Paux at nominal heat input PNor at maximum rate of the burner shall be given as the mean value of the electrical power consumption at the ma
48、ximum rate of the burner in the points of the test diagrams. The fuel mass flow shall be set to 30 % of the nominal load if this point is within the working diagram of the burner. Alternatively the burner shall be synchronised with a medium power consumption of 30 % of the nominal load. BS EN 15456:
49、2008EN 15456:2008 (E) 11 Modulating burners shall be determined at 30 % of the rate of the burner. Three working points shall be checked: 1) min/max load at the pressure in the combustion chamber (mean value form the working points); 2) to find out a standard working points and 30 % part load operation; 3) stand-by. 5.3 Pellet burner Pellet burner shall be tested under the conditions of EN 15270. 5.4 Oil stoves Oil stoves shall be tested under the conditions of EN 1. 5.5 Determinat
