1、| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BRITISH STANDARD BS EN 810 : 1997 The Euro
2、pean Standard EN 810 : 1997 has the status of a British Standard ICS 91.140.30 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW Dehumidifiers with electrically driven compressors Rating tests, marking, operational requirements and technical data sheetBS EN 810 : 1997 This Briti
3、sh Standard, having been prepared under the direction of the Engineering Sector Board, was published under the authority of the Standards Board and comes into effect on 15 September 1997 BSI 1997 The following BSI references relate to the work on this standard: Committee reference RHE/17 Draft for c
4、omment 92/80260 DC ISBN 0 580 28108 6 Amendments issued since publication Amd. No. Date Text affected Committees responsible for this British Standard The preparation of this British Standard was entrusted to Technical Committee RHE/17, Testing of heat pumps and air conditioners, upon which the foll
5、owing bodies were represented: British Gas plc British Refrigeration Association Building Services Research and Information Association Chartered Institution of Building Services Engineers Department of the Environment (Building Research Establishment) Electricity Association Heating and Ventilating
6、 Contractors Association Hevac Association Institute of Refrigeration Institution of Mechanical EngineersBS EN 810 : 1997 BSI 1997 i Contents Page Committees responsible Inside front cover National foreword ii Foreword 2 Text of EN 810 3ii BSI 1997 BS EN 810 : 1997 National foreword This British Sta
7、ndard has been prepared by Technical Committee RHE/17, and is the English language version of EN 810 : 1997, published by the European Committee for Standardization (CEN). Cross-references Publication referred to Corresponding British Standard EN 255-1 : 1988 BS 7326 Specification for rating and per
8、formance of heat pumps with electrically driven compressors BS EN 60335 Specification for safety of household and similar electrical appliances BS EN 60335-2 Particular requirements EN 60335-2-40 BS EN 60335-2-40 : 1993 Electric heat pumps, air conditioners and dehumidifiers Compliance with a Britis
9、h Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, the EN title page, pages 2 to 10, an inside back cover and a back cover.CEN European Committee for Standardization Comite Europe en de
10、Normalisation Europa isches Komitee fu r Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels 1997 Copyright reserved to CEN members Ref. No. EN 810 : 1997 E EUROPEAN STANDARD EN 810 NORME EUROPE ENNE EUROPA ISCHE NORM February 1997 ICS 91.140.30 Descriptors: Air conditioning equipment,
11、humidifiers, tests, testing conditions, installation, measurements, calorific power, marking English version Dehumidifiers with electrically driven compressors Rating tests, marking, operational requirements and technical data sheet De shumidificateurs a compresseur entraine par moteur e lectrique E
12、ssais de performance, marquage, exigences de fonctionnement et fiche technique Entfeuchter mit elektrisch angetriebenen Verdichtern Leistungspru fungen, Kennzeichnung, Funktionsanforderungen und technische Datenbla tter This European Standard was approved by CEN on 1997-01-27. CEN members are bound
13、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 Cent
14、ral Secretariat 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 Central Secretariat has the same status as
15、the official versions. CEN members are the national standards bodies of Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.Page 2 EN 810 : 1997 BSI 1997 Foreword This European
16、Standard has been prepared by Technical Committee CEN/TC 113, Heat pumps and air conditioners, 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 August 199
17、7, and conflicting national standards shall be withdrawn at the latest by August 1997. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Denmark, Finland, France, Germany
18、, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. Contents Page Foreword 2 1 Scope 3 2 Normative references 3 3 Definitions 3 4 Rating test 3 5 Test report 6 6 Marking 7 7 Operational requirements 8 8 Technical data sheet
19、 9 9 Instructions 10 Annex A (informative) Bibliography 10Page 3 EN 810 : 1997 BSI 1997 1 Scope This standard specifies the methods for testing and reporting the rating and operational requirements and it specifies requirements for marking for dehumidifiers with electrically driven compressors. This
20、 standard does not apply to continuously variable capacity control units. In the case of dehumidifiers consisting of several parts, the standard applies only to those designed and supplied as a complete package. 2 Normative references This European Standard incorporates by dated or undated reference
21、, provisions from other publications. These normative references are cited at the appropriate places in the text and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorporated
22、in it by amendment or revision. For undated references, the latest edition of the publication referred to applies. EN 255-1 Air conditioners, liquid chilling packages and heat pumps with electrically driven compressors Heating mode Part 1: Terms, definitions and designations EN 814-1 Air conditioner
23、s and heat pumps with electrically driven compressors Cooling mode Part 1: Terms, definitions and designations EN 60335-2-40 Safety of household and similar electrical appliances Part 2: Particular requirements for electrical heat pumps, air conditioners and dehumidifiers (IEC 335-2-40 :1992 modifie
24、d) ENV 12102 Air conditioners, heat pumps and dehumidifiers with electrically driven compressors Measurement of airborne noise Determination of sound power level 3 Definitions For the purpose of this standard the definitions given in EN 255-1 and EN 814-1 apply together with the following. 3.1 dehum
25、idification for comfort Dehumidification to reduce the humidity within a space to a level to satisfy the requirements of the occupants. 3.2 dehumidification for process Dehumidification to reduce the humidity within a space to a level necessary for the process or the storage of goods and/or material
26、s or the drying out of a building. 3.3 dehumidification for heat recovery Dehumidification where the latent and sensible heat removed from the space together with the compressor heat is re-used in another application rather than rejected outside to waste. 3.4 dehumidifier Encased assembly designed t
27、o remove moisture from its surrounding atmosphere. It includes an electrically operated refrigeration system and means to recirculate air. It also includes a drain arrangement for collecting and storing and/or disposing of the condensate. 3.5 dehumidification capacity Measure of the net removal of m
28、oisture by the unit from its surrounding atmosphere expressed in litres per hour. 3.6 dehumidification efficiency ratio (DER) Ratio of dehumidification capacity to the effective power input of the dehumidifier measured over a defined interval of time. 4 Rating test 4.1 Basic principles 4.1.1 General
29、 All measured parameters, with the exception of time measurement shall be understood to be average values over the duration of the test period. 4.1.2 Dehumidification capacity The capacity of the dehumidifier is determined by measurements in a suitable test chamber. 4.1.3 Power input of fans for deh
30、umidifiers without duct connection In the case of dehumidifiers which are not designed for duct connection, i.e. which do not permit any external pressure difference, and which are equipped with an integral fan, the power absorbed by the fan shall be included in the (effective or total) power absorb
31、ed by the dehumidifier. 4.1.4 Power input of fans for dehumidifiers with duct connection 4.1.4.1 If a fan is an integral part of the dehumidifier, only a fraction of the input of the fan motor shall be included in the effective power absorbed by the dehumidifier. The fraction which is to be excluded
32、 from the total power absorbed by the dehumidifier shall be calculated using the following formula: in watts qDp e hPage 4 EN 810 : 1997 BSI 1997 where: h is 0,3 by convention; Dp e is the available external static pressure difference, in pascals; q is the nominal air flow rate, in cubic metres per
33、second. 4.1.4.2 If no fan is provided with the dehumidifier, a fraction of the power input shall be included in the effective power absorbed by the dehumidifier, using the following formula: in watts qDp i h where: h is 0,3 by convention; Dp i is the measured internal static pressure difference, in
34、pascals; q is the nominal air flow rate, in cubic metres per second. 4.1.5 Power input of water pump 4.1.5.1 At the water or brine cooled condenser, the fraction of the power absorbed by the pump which is required to overcome the internal static pressure of the dehumidifier shall be calculated. 4.1.
35、5.2 If the pump is an integral part of the dehumidifier only a fraction of the input to the pump motor shall be included in the effective power absorbed by the dehumidifier. The fraction which is to be excluded from the total power absorbed by the dehumidifier shall be calculated using the following
36、 formula: in watts qDp e h where: h is 0,3 by convention; Dp e is the available external static pressure difference, in pascals; q is the nominal air flow rate, in cubic metres per second. 4.1.5.3 If no pump is provided with the dehumidifier, a fraction of the power input shall be included in the ef
37、fective power absorbed by the dehumidifier, using the following formula: in watts qDp i h where: h is 0,3 by convention; Dp i is the measured internal static pressure difference, in pascals; q is the nominal air flow rate, in cubic metres per second. 4.2 Test apparatus 4.2.1 Arrangement of the test
38、apparatus 4.2.1.1 General requirements The test apparatus shall be designed in such a way that all requirements on adjustment of set values, stability criteria and uncertainties of measurement according to this European Standard can be fulfilled. Ducted air systems shall be sufficiently air tight to
39、 ensure that the measured results are not significantly influenced by exchanges of air with the surroundings. 4.2.1.2 Test room for the airside The size of the test room shall be selected such that any resistance to air flow at the air inlet and air outlet orifices of the test object is avoided. The
40、 air flow through the room shall not be capable of initiating any short circuit between these two orifices and therefore the velocity of the air flows through the room at these two locations shall not exceed 1,5 m/s when the test object is switched off. The air velocity in the room shall also not be
41、 greater than the mean velocity through the unit inlet. Unless otherwise stated by the manufacturer, the air inlet and outlet orifices shall not be less than 1 m distant from the surfaces of the test room; this also applies to any measuring ducts. Any direct heat radiation by heating devices in the
42、test room onto the unit or onto the temperature measuring points shall be avoided. 4.2.1.3 Setting the external static pressure difference on the air side for appliances with duct connection For appliances with duct connection, the maximum external pressure difference available at the nominal flow r
43、ate specified by the manufacturer is preferably set on the air outlet side of the unit when the refrigerating system does not operate. The nominal air flow shall then be verified. 4.2.1.4 Setting the external static pressure difference on the water side for appliances with integral pumps For applian
44、ces with integral water pumps, the maximum external static pressure difference available at the nominal flow rate specified by the manufacturer is preferably set on the outlet side of the unit, this also sets the water flows.Page 5 EN 810 : 1997 BSI 1997 Table 1. Uncertainties of measurement for ind
45、icated values Measured quantity Unit Uncertainty of measurement Water temperature C 0,1 K temperature difference K 0,1 K (volume) flow l/s 5% static pressure difference Pa 5P a(Dp#100Pa) 5%(Dp 100Pa) Air dry bulb temperature C 0,2 K wet bulb temperature C 0,2 K (volume) flow m 3 /s 5% static pressur
46、e difference Pa 5P a(Dp#100Pa) 5%(Dp 100Pa) Electrical power W 1% Voltage V 0,5 % Current A 0,5 % Electrical energy kWh 1% 4.2.2 Installation and connection of the test object The test object shall be installed and connected for the test as recommended by the manufacturer in his installation and ope
47、ration manual. Temperature and pressure measuring points shall be arranged in order to obtain mean significant values. 4.2.3 Installation of dehumidifiers consisting of several parts In the case of a dehumidifier consisting of several parts, the following installation conditions shall be complied wi
48、th for the test: a) each refrigerant line shall be installed in accordance with the manufacturers instructions with the maximum stated length or 8 m, whichever is shorter; b) the lines shall be installed so that the difference in elevation does not exceed 1 m; c) the thermal insulation of the lines
49、shall be applied in accordance with the manufacturers instructions; d) unless constrained by the design, at least half of the connecting lines shall be exposed to the outside conditions, with the rest of the lines exposed to the inside conditions. 4.3 Uncertainties of measurement Uncertainties of measurement shall not exceed the values specified in table 1. The capacity shall be determined within a maximum uncertainty of 5 % independent of the individual uncertainties of measurement. 4
