EN 50193-2-1-2016 en Electric instantaneous water heaters - Part 2-1 Methods for measuring the performance - Multifunctional electric instantaneous water heaters.pdf

1、BS EN 50193-2-1:2016Electric instantaneous waterheatersPart 2-1: Methods for measuring theperformance Multifunctional electricinstantaneous water heatersBSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06BS EN 50193-2-1:2016 BRITISH STANDARDNational forewordThis British

2、 Standard is the UK implementation of EN50193-2-1:2016.The UK participation in its preparation was entrusted to TechnicalCommittee CPL/59, Performance of household electrical appliances.A list of organizations represented on this committee can beobtained on request to its secretary.This publication

3、does not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. The British Standards Institution 2016. Published by BSI StandardsLimited 2016ISBN 978 0 580 86397 4ICS 91.140.65Compliance with a British Standard cannot confer immunity fromlega

4、l obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 31 May 2016.Amendments issued since publicationDate Text affectedBS EN 50193-2-1:2016EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 50193-2-1 May 2016 ICS 91.140.65 English Ve

5、rsion Electric instantaneous water heaters - Part 2-1: Methods for measuring the performance - Multifunctional electric instantaneous water heaters Chauffe-eau lectriques instantans - Partie 2-1: Mthodes de mesure de laptitude la fonction - Chauffe-eau lectriques instantans multifonctions Elektro-Du

6、rchfluss-Wassererwrmer - Teil 2 1: Verfahren zur Messung der Gebrauchseigenschaften - Multifunktionelle Elektro-Durchfluss-Wassererwrmer This European Standard was approved by CENELEC on 2016-03-28. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the con

7、ditions 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 CENELEC member. This European Standard

8、exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CENELEC members are the

9、national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland,

10、 Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung CEN-CENELEC Management Centre: Avenue Marnix 17,

11、 B-1000 Brussels 2016 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members. Ref. No. EN 50193-2-1:2016 E BS EN 50193-2-1:2016EN 50193-2-1:2016 (E) 2 Contents Page European foreword . 4 1 Scope . 5 2 Normative references . 5 3 Terms and definitions .

12、5 4 General test conditions 7 4.4 Test setup . 8 4.101 Time constants (measuring time) . 8 4.102 Test setup . 8 4.102.1 Measurement setup 8 4.102.2 Set points 8 4.102.3 Measurement of flow pressure and flow rate 8 4.102.4 Temperature measurement 8 5 Energy efficiency 8 6.101 Performance tests 8 6.10

13、1.1 General . 8 6.101.2 Determination of flow rates 8 6.101.2.1 Introduction . 8 6.101.2.2 Electronically controlled or regulated appliances 9 6.101.2.3 Hydraulically controlled appliances . 9 6.101.2.4 Determination of the flow rate as a function of the pressure difference . 10 6.101.3 Pressure dif

14、ference on activation of the heating capacity . 10 6.101.3.1 Introduction . 10 6.101.3.2 Electronically controlled or regulated appliances 10 6.101.3.3 Hydraulically controlled appliances . 10 6.101.4 Behaviour at switch-on of the appliance 11 6.101.4.1 Introduction . 11 6.101.4.2 Electronically con

15、trolled or regulated appliances 11 6.101.4.3 Hydraulically controlled appliances . 12 6.101.5 Behaviour following the change of the flow rate 12 6.101.5.1 Introduction . 12 6.101.5.2 Electronically controlled or regulated appliances 12 6.101.5.3 Hydraulically controlled appliances . 13 6.101.6 Behav

16、iour following interruption of the flow . 14 6.101.6.1 Introduction . 14 6.101.6.2 Electronically controlled or regulated appliances 14 6.101.6.3 Hydraulically controlled appliances . 15 6.101.7 Behaviour at constant temperature setting 15 6.101.7.1 Introduction . 15 6.101.7.2 Electronically control

17、led or regulated appliances 15 6.101.7.3 Hydraulically controlled appliances . 16 6.101.8 Behaviour following the change of the temperature selector setting . 16 6.101.8.1 Introduction . 16 BS EN 50193-2-1:2016EN 50193-2-1:2016 (E) 3 6.101.8.2 Electronically controlled appliances . 16 6.101.8.3 Hydr

18、aulically controlled appliances . 17 6.101.9 Behaviour at voltage limits . 17 7.101 Additional tests for electronic instantaneous water heaters . 18 7.101.1 General . 18 7.101.2 Behaviour of the outlet temperature at decreasing water inlet temperature 18 7.101.3 Behavior of the outlet temperature at

19、 changing water inlet temperature . 19 Annex A (normative) Load pattern 20 Annex B (normative) Test setup 21 Annex ZZA (informative) Relationship between this European Standard and the energy labelling requirements of Commission Delegated Regulation (EU) No 812/2013 aimed to be covered . 25 Annex ZZ

20、B (informative) Relationship between this European Standard and the ecodesign requirements of Commission Regulation (EU) No 814/2013 aimed to be covered . 26 Bibliography 27 BS EN 50193-2-1:2016EN 50193-2-1:2016 (E) 4 European foreword This document (EN 50193-2-1:2016) has been prepared by CLC/TC 59

21、X “Performance of household and similar electrical appliances“. The following dates are proposed: latest date by which this document has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2017-03-28 latest date by which the national standards

22、 conflicting with this document have to be withdrawn (dow) 2019-03-28 This document is to be read in conjunction with EN 50193-1:2013. Clauses, subclauses, notes, tables and figures which are additional to those in EN 50193-1:2013 are numbered starting from 101. This document has been prepared under

23、 a mandate given to CENELEC by the European Commission and the European Free Trade Association, and supports essential requirements of EU Directive(s). For the relationship with EU Directive(s) see informative Annex ZZA and ZZB, which are integral parts of this document. BS EN 50193-2-1:2016EN 50193

24、-2-1:2016 (E) 5 1 Scope This clause of Part 1 is applicable with the following exception: This European Standard applies to electrical instantaneous water heaters designed to operate as multifunctional appliances with electric rated power 2 kW. This European Standard specifies tests for the assessme

25、nt of the performance. 2 Normative references This clause of Part 1 is applicable with the following exception: Addition: EN 50193-1:2013, Electric instantaneous water heaters - Part 1: General requirements 3 Terms and definitions This clause of Part 1 is applicable with the following exceptions: Ad

26、dition: 3.101 setpoint value changeable value which is allocated to the appliance or the individual components thereof 3.102 flow pressure on activation of the heating capacity pressure drop in the instantaneous water heater, at which the heating capacity is, and remains, activated 3.103 90% method

27、usually a physical value is reaching a final (average) value in an asymptotic manner. To reach a valid measurement result, a stop point of the measurement has to be defined. The measurement is stopped, if the value finally has reached 90% of the difference between (average) starting value and (avera

28、ge) final value 3.104 10%/90% method usually a physical value is changing with a time delay in an asymptotic manner between starting value and final value. To reach a valid measurement result, a starting point and a stop point have to be defined for the measurement. The measurement is started, if th

29、e physical value has first reached 10% of the difference between (average) starting value and (average) final value. The measurement is stopped, if the value finally has reached 90% of the difference BS EN 50193-2-1:2016EN 50193-2-1:2016 (E) 6 Figure 101 3.105 response time time interval between the

30、 beginning of the changing of a value or parameter and the moment a steady state condition has obtained. The 90% method has to be used 3.106 volume flow rate/water flow rate flow rate of water expressed in l/min 3.107 heating-up duration time interval between the opening of the withdrawal device and

31、 the final outlet temperature is obtained. The 90% method has to be used for 3.108 pressure difference difference between pressure at water inlet and water outlet of the appliance at a defined flow rate BS EN 50193-2-1:2016EN 50193-2-1:2016 (E) 7 After Clause 3, add the following new clause: 101 Sym

32、bols and units For the purposes of this document, the following symbols and units apply. Table 101 Symbols and units Symbol Unit Explanation TminC The minimum setting of the temperature setting mechanism settable by user at which the appliance does heat. If no user accessible temperature selector is

33、 available, the relevant measurements with Tminare not performed. T38C Standard hot water temperature set point for various tests: 38C. If the temperature setting mechanism settable by user does not permit an outlet temperature setting of 38 C, a temperature as close as possible above 38C as possibl

34、e shall be chosen. This temperature shall be stated in the test report and shall be used for any further measurements, instead of 38 C. The positions of the temperature setting mechanism shall be marked for reproducible settings, taking into consideration the fact that T38settings may dependent on t

35、he direction of the rotation of a knob. If no user accessible temperature selector is available, the temperature factory setting is defined to be the T38.setting. TmaxC The maximum setting of the temperature setting mechanism settable by the user. If no user accessible temperature selector is availa

36、ble, the relevant measurements with Tmaxare not performed. TpminC Temperature at the minimum permanent setting of the power selector settable by user at which the appliance does heat. If no user accessible power selector is available, the relevant measurements with Tpminare not performed. TpmaxC Tem

37、perature at the maximum permanent setting of the power selector settable by user. If no user accessible power selector is available, the temperature factory setting is defined to be the Tpmaxsetting. 90%PV. /min The flow-rate where the power consumption is 90% of rated power at T38 and an inlet-temp

38、erature of 15 C VK. factor The correction value for 90%PVif the inlet temperature differs by more than 1K from 15 C TmC Temperature from which counting of useful energy content starts TpC Minimum (peak) temperature to be achieved during tapping TcoldC Cold water inlet temperature f l/min Minimum flo

39、w rate to be reached during tapping PminkW Minimum required instantaneous heating power to fulfil tapping tdsecond Tapping duration PrealkW Minimum requited heating power of the appliance PnomkW Nominal heating power of the appliance QnomkWh Nominal daily energy consumtion of the appliance QrkWh Rea

40、l daily energy consumtion of the appliance 4 General test conditions This clause of Part 1 is applicable with following exceptions: Modification: The cold water temperature Tcoldshall be 15 C 5 K for the performance tests according to Clause 102ff. BS EN 50193-2-1:2016EN 50193-2-1:2016 (E) 8 4.4 Tes

41、t setup This subclause of Part 1 is not applicable. Addition: 4.101 Time constants (measuring time) Time constants shall be determined by means of the 10/90 % method. 4.102 Test setup 4.102.1 Measurement setup The appliance shall be fixed in accordance with the installation instructions. The measure

42、ment setup shall correspond to Figure B.101 for open-outlet appliances (single point) and to Figure B.102 for closed-outlet (multi point) appliances. 4.102.2 Set points Unless no specific setpoints for the individual test are defined: All non-user adjustable setpoints shall be adjusted according to

43、manufacturer instructions for a standard setup. User adjustable selectors have to be set as follows: If the appliance has a power selector, the selector shall be adjusted to the highest value. If the appliance has a temperature independent flow selector, it shall be adjusted to the highest value. If

44、 the appliance has a flow independent temperature selector, it shall be adjusted to the highest value. All other selectors shall be set according to manufacturer instructions. 4.102.3 Measurement of flow pressure and flow rate Flow pressure and flow rate shall be measured in accordance to Annex B. F

45、low pressure shall be determined by measuring the pressure difference. 4.102.4 Temperature measurement The inlet and outlet temperatures of the water shall be measured using the setup according to Annex B. 5 Energy efficiency This clause of Part 1 is applicable. Addition: 6.101 Performance tests 6.1

46、01.1 General Smart Instantaneous water heater shall be measured as “Electronically controlled or regulated appliances” all other appliances are measured as “Hydraulically controlled appliances”. 6.101.2 Determination of flow rates 6.101.2.1 Introduction The purpose of this test is to determine refer

47、ence values for further measurements. BS EN 50193-2-1:2016EN 50193-2-1:2016 (E) 9 6.101.2.2 Electronically controlled or regulated appliances The appliance is operated under the boundary conditions of EN 50193-1:2013, Table 1. Set flow rate to 90%PV Closed outlet appliances: The water pressure diffe

48、rence shall be increased up to the half of the nominal pressure of the appliance, if necessary. If the flow rate 90%PVcannot be obtained, the flow rate at pressure difference of half nominal pressure of the appliance is defined to be 100 %. Open outlet appliances: 0,1 MPa is the maximum useable pres

49、sure. If the flow rate 90%PVcannot be obtained, the flow rate at a pressure difference of 0,1 MPa is defined to be 100 % If the Inlet temperature deviates more than 1 K from 15 C, a correction factor VKhas to be included: , 383815in realVTKCT =. The 90%Pvalue will be corrected to 90%P* K 100% Both, the outlet-temperature T38and 90%PVshall be stated in the test report and shall be used for any further measurements. Table 102 Nominal values for electronically controlled or regulated appliances rated power 90% rated p