1、March 2015 Translation by DIN-Sprachendienst.English price group 26No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS
2、91.140.10!%A*H“2300737www.din.deDDIN EN 442-2Radiators and convectors Part 2: Test methods and rating;English version EN 442-2:2014,English translation of DIN EN 442-2:2015-03Radiatoren und Konvektoren Teil 2: Prfverfahren und Leistungsangabe;Englische Fassung EN 442-2:2014,Englische bersetzung von
3、DIN EN 442-2:2015-03Radiateurs et convecteurs Partie 2: Mthodes dessai et dvaluation;Version anglaise EN 442-2:2014,Traduction anglaise de DIN EN 442-2:2015-03SupersedesDIN EN 442-2:2003-12www.beuth.deDocument comprises 0 pagesIn case of doubt, the German-language original shall be considered author
4、itative.802.15DIN EN 442-2:2015-03 2 A comma is used as the decimal marker. This document (EN 442-2:2014) has been prepared by Technical Committee CEN/TC 130 “Space heating appliances without integral heat sources” (Secretariat: UNI, Italy). The responsible German body involved in its preparation wa
5、s the DIN-Normenausschuss Heiz- und Raumlufttechnik (DIN Standards Committee Heating and Ventilation Technology), Working Committee NA 041-01-69-14 AK Raumheizkrper (SpA CEN/TC 130/WG 10 + WG 11). Amendments This standard differs from DIN EN 442-2:2003-12 as follows: a) some new definitions have bee
6、n added; b) the straight or curved towel or bathroom radiator has been included; c) different surface treatments have been included; d) a new normative Annex J “Calibration Procedure” has been added; e) a new normative Annex K “Pretreatment and paint testing method” has been added. Previous editions
7、 DIN 4701: 1944-08 DIN 4703: 1944-04 DIN 4703-1: 1961-07, 1977-04, 1988-09 DIN 4703-2: 1967-01, 1977-04 DIN 4720: 1936-07, 1961-01,1976-02, 1979-06 DIN 4722: 1938-06, 1961-01, 1976-02, 1978-07 DIN 4704-1: 1971-10, 1976-08, 1988-09 DIN 4704-2: 1971-10, 1976-08, 1988-09 DIN 4704-3: 1976-08 DIN EN 442-
8、2: 1997-02, 2003-12 DIN EN 442-2/A1: 2000-09 National forewordEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 442-2 December 2014 ICS 91.140.10 Supersedes EN 442-2:1996English Version Radiators and convectors - Part 2: Test methods and rating Radiateurs et convecteurs - Partie 2: Mthodes dessai
9、 et dvaluation Radiatoren und Konvektoren - Teil 2: Prfverfahren und Leistungsangabe This European Standard was approved by CEN on 11 October 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
10、 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)
11、. 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, C
12、yprus, 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
13、Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2014 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 442
14、-2:2014 EEN 442-2:2014 (E) 2 Contents Page Foreword 4 Introduction .5 1 Scope 6 2 Normative references 6 3 Terms, definitions, symbols and units 6 3.1 Terms and definitions .6 3.2 Symbols and units of measurement . 11 4 Selection of heating appliances to be tested . 12 4.1 Classification . 12 4.2 Se
15、lection of models to be tested for determining the thermal outputs of a type 12 4.2.1 Selection of models to be tested when the variable characteristic dimension is the overall height and the cross-section of the variable part is constant . 12 4.2.2 Selection of models to be tested when the variable
16、 characteristic dimension for the type is other than the overall height . 13 4.3 Testing samples submission and identification 14 4.4 Supplementary test. 17 5 Equipment of laboratory and test methods . 17 5.1 Principle . 17 5.2 Apparatus 17 5.2.1 Test system . 17 5.2.2 Reference test installation .
17、17 5.2.3 Master radiators 20 5.2.4 Verification of test installation repeatability and reproducibility 24 5.2.5 Accuracy of measuring instruments and devices . 29 5.2.6 Calibration of measuring instruments 30 5.3 Preparation for thermal output test 30 5.4 Test methods . 30 5.4.1 General . 30 5.4.2 W
18、eighing method 31 5.4.3 Electric method . 31 5.4.4 Measurements and calculations . 31 5.4.5 Determination of the characteristic equation 34 5.5 Presentation of results . 35 5.5.1 Standard thermal output of a model . 35 5.5.2 Determination of the catalogue outputs of a type made at variable water flo
19、w rate . 36 6 Test report . 36 Annex A (normative) Master radiators dimensional verification 39 Annex B (informative) Determination of pressure drop . 46 B.1 Introduction . 46 B.2 Pressure drop equation of a type 47 B.2.1 General . 47 B.2.2 Pressure drop characteristic equation of a model 47 B.3 Tes
20、t method . 47 B.3.1 Test circuit . 47 B.3.2 Pressure tappings. 47 B.4 Test procedure Setting up . 48 B.5 Measurements of differential pressures using an inverted U tube manometer . 48 B.5.1 Techniques of measurement . 48 DIN EN 442-2:2015-03 EN 442-2:2014 (E) 3 B.5.2 Surface tension effect . 48 B.5.
21、3 Leakage 48 B.5.4 Air pockets in connecting piping . 48 B.5.5 Blocked pressure holes 48 B.5.6 Level of inlet and outlet connections 49 B.5.7 Damping (throttling) of excessive movement (oscillation) of inverted U tube manometer liquid . 49 Annex C (normative) Least squares regression for a model . 5
22、3 Annex D (normative) Analysis of test results by the method of least squares multiple regression . 54 Annex E (normative) Specimen of the test report . 56 Annex F (informative) Apparatus and method for checking the bulk temperature measuring devices . 60 Annex G (informative) Examples of typical ap
23、pliances according to Table 4 62 Annex H (normative) Determination of the Mvalues of the master radiators primary set 71 Annex I (normative) Traceability of the thermal output measurement of radiators and convectors . 72 I.1 General . 72 I.2 Thermal output traceability 72 I.2.1 Reference test instal
24、lations 72 I.2.2 Approved test installations 73 I.3 Handling of the Master radiator sets . 73 Annex J (normative) Calibration Procedure. 74 J.1 General . 74 J.2 RRT Organizational course 74 J.3 Test procedure and submission of results . 75 J.4 Test analysis and assessment . 75 Annex K (normative) Pr
25、etreatment and paint testing method . 77 Bibliography 78 DIN EN 442-2:2015-03 EN 442-2:2014 (E) 4 Foreword This document (EN 442-2:2014) has been prepared by Technical Committee CEN/TC 130 “Space heating appliances without integral heat sources”, the secretariat of which is held by UNI. This Europea
26、n Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by June 2015, and conflicting national standards shall be withdrawn at the latest by June 2015. Attention is drawn to the possibility that some of the elements of
27、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 442-2:1996. This document has been prepared under a mandate given to CEN by the European Commission and the European Free Tra
28、de Association. The most significant changes that have been made in this new edition of EN 442-2 are the following ones: some new definitions have been added; the straight or curved towel or bathroom radiator have been included; different surface treatments have been included; a new normative Annex
29、J “Calibration Procedure“ has been added; a new normative Annex K “Pretreatment and paint testing method“ has been added. This European Standard comes from an output of the project SMT4 - CT97 - 2127 funded by the European Commission DGXII-RDT. This European Standard, Radiators and convectors, consi
30、sts of the following parts: Part 1: Technical specifications and requirements; Part 2: Test methods and rating the present document. According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austr
31、ia, 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
32、, Switzerland, Turkey and the United Kingdom. DIN EN 442-2:2015-03 EN 442-2:2014 (E) 5 Introduction This European Standard results from the recognition that the heating appliances falling into the field of application hereinafter stated are traded on the basis of their thermal output. To evaluate an
33、d compare different appliances it is therefore necessary to refer to a single stipulated value, hereinafter called the standard rated thermal output. In addition, for low temperature systems a standard low temperature thermal output is given. The standard thermal outputs (standard rated thermal outp
34、ut and standard low temperature thermal output) are defined value taken from the characteristic equation. The pre-requisites of the standard thermal outputs, as defined by this European Standard, are the following: to be representative of the actual output of the appliance in different operating con
35、ditions; to be reproducible within the tolerances defined by this European Standard, taking into account the state of measuring techniques; to be representative of the thermal outputs, obtainable under the same test conditions, of any identical sample taken out of the current production (within the
36、tolerances defined by this European Standard taking into account the state of measuring techniques and methods of manufacture). DIN EN 442-2:2015-03 EN 442-2:2014 (E) 6 1 Scope This European Standard defines procedures for determining the standard thermal outputs and other characteristics of radiato
37、rs and convectors installed in a permanent manner in construction works, fed with water or steam at temperatures below 120 C, supplied by a remote energy source. This European Standard specifies the laboratory arrangements and testing methods to be adopted, the admissible tolerances, the criteria fo
38、r selecting the samples to be tested and for verifying the conformity of the current production with the samples tested at the initial test. This European Standard also defines the additional common data that the manufacturer shall provide with the product in order to ensure the correct application
39、of the products. This European Standard does not apply to fan assisted radiators, fan assisted convectors and trench convectors and to independent heating appliances. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensabl
40、e 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 10088-1, Stainless steels Part 1: List of stainless steels EN ISO/IEC 17025, General requirements for the competen
41、ce of testing and calibration laboratories (ISO/IEC 17025) ISO 16269-7, Statistical interpretation of data Part 7: Median Estimation and confidence intervals 3 Terms, definitions, symbols and units 3.1 Terms and definitions For the purposes of this document, the following terms and definitions apply
42、. 3.1.1 heating appliance device having the purpose of transferring heat in order to provide specific temperature conditions inside buildings 3.1.2 independent heating appliance self-contained heating appliance which does not need to be connected to a remote energy source (e.g. a boiler) as it conta
43、ins its own energy source (e.g. gas fired appliances, electric appliances, air to air heat pump appliances) 3.1.3 radiator heating appliance produced with different materials (e.g. steel, aluminium, cast-iron) and with different designs (e.g. plate type, column type, tube type, finned tube type), wh
44、ich emits heat by free convection and radiation 3.1.4 sectional heating appliances (mainly applied to radiators) heating appliance manufactured in sections of identical design and traded in this form which can be joined together into modular assemblies so that the desired output can be obtained DIN
45、EN 442-2:2015-03 EN 442-2:2014 (E) 7 3.1.5 free convection heating appliance heating appliance which does not contain a fan or similar device to activate the air flow over heat emitter 3.1.6 convector heating appliance which emits heat almost entirely by free convection Note 1 to entry: A convector
46、comprising at least a heat emitter and a casing which provides an unheated convective chimney of defined height. 3.1.7 skirting convector convector of limited height running along the base of an interior wall 3.1.8 height of the unheated convective chimney vertical distance between the lowest edge o
47、f the convector and the bottom of the air outlet section Note 1 to entry: It applies to convectors only, being a main factor influencing their thermal output. 3.1.9 wet heating surface; primary heating surface portion of the heat emitting surface which is always in contact with the primary fluid (wa
48、ter or steam) 3.1.10 dry heating surface; secondary heating surface portion of the heat emitting surface which is in contact with air only (e.g. fins projecting from the wet surface) 3.1.11 family of heating appliances group of heating appliances of similar design and construction and of identical m
49、aterial, positions of primary fluid connections and other related variables that particularly affect the conditions of flow of the primary fluid within the heating appliance 3.1.12 type of radiators/convectors group of heating appliances of similar design whose cross-section remains unchanged while the height or length varies or which have a systematic variation of only one characteristic dimension of the dry heating surfaces providing that this does not affect the water side (e.g. the height of convector fins on panel radiator) Note
