SVENSK STANDARD SS-EN :2011

Transkript

1 SVENSK STANDARD SS-EN :2011 Fastställd / Approved: Publicerad / Published: Utgåva / Edition: 3 Språk / Language: engelska / English ICS: ; ; Luftkonditioneringsaggregat, vätskekylare och värmepumpar, med elmotordrivna kompressorer, för rumsuppvärmning och -kylning Del 3: Provningsmetoder Air conditioners, liuid chilling packages and heat pumps with electrically driven compressors for space heating and cooling Part 3: Test methods

2 Standarder får världen att fungera SIS (Swedish Standards Institute) är en fristående ideell förening med medlemmar från både privat och offentlig sektor. Vi är en del av det europeiska och globala nätverk som utarbetar internationella standarder. Standarder är dokumenterad kunskap utvecklad av framstående aktörer inom industri, näringsliv och samhälle och befrämjar handel över gränser, bidrar till att processer och produkter blir säkrare samt effektiviserar din verksamhet. Delta och påverka Som medlem i SIS har du möjlighet att påverka framtida standarder inom ditt område på nationell, europeisk och global nivå. Du får samtidigt tillgång till tidig information om utvecklingen inom din bransch. Ta del av det färdiga arbetet Vi erbjuder våra kunder allt som rör standarder och deras tillämpning. Hos oss kan du köpa alla publikationer du behöver allt från enskilda standarder, tekniska rapporter och standardpaket till handböcker och onlinetjänster. Genom vår webbtjänst e-nav får du tillgång till ett lättnavigerat bibliotek där alla standarder som är aktuella för ditt företag finns tillgängliga. Standarder och handböcker är källor till kunskap. Vi säljer dem. Utveckla din kompetens och lyckas bättre i ditt arbete Hos SIS kan du gå öppna eller företagsinterna utbildningar kring innehåll och tillämpning av standarder. Genom vår närhet till den internationella utvecklingen och ISO får du rätt kunskap i rätt tid, direkt från källan. Med vår kunskap om standarders möjligheter hjälper vi våra kunder att skapa verklig nytta och lönsamhet i sina verksamheter. Vill du veta mer om SIS eller hur standarder kan effektivisera din verksamhet är du välkommen in på eller ta kontakt med oss på tel Standards make the world go round SIS (Swedish Standards Institute) is an independent non-profit organisation with members from both the private and public sectors. We are part of the European and global network that draws up international standards. Standards consist of documented knowledge developed by prominent actors within the industry, business world and society. They promote cross-border trade, they help to make processes and products safer and they streamline your organisation. Take part and have influence As a member of SIS you will have the possibility to participate in standardization activities on national, European and global level. The membership in SIS will give you the opportunity to influence future standards and gain access to early stage information about developments within your field. Get to know the finished work We offer our customers everything in connection with standards and their application. You can purchase all the publications you need from us - everything from individual standards, technical reports and standard packages through to manuals and online services. Our web service e-nav gives you access to an easy-to-navigate library all standards that are relevant to your company are available. Standards and manuals are sources of knowledge. We sell them. Increase understanding and improve perception With SIS you can undergo either shared or in-house training in the content and application of standards. Thanks to our proximity to international development and ISO you receive the right knowledge at the right time, direct from the source. With our knowledge about the potential of standards, we assist our customers in creating tangible benefit and profitability in their organisations. If you want to know more about SIS, or how standards can streamline your organisation, please visit or contact us on phone +46 (0)

3 Europastandarden EN :2011 gäller som svensk standard. Detta dokument innehåller den officiella engelska versionen av EN :2011. Denna standard ersätter SS-EN :2007, utgåva 2 och SS-EN :2007 / AC:2008, utgåva 1. The European Standard EN :2011 has the status of a Swedish Standard. This document contains the official version of EN :2011. This standard supersedes the Swedish Standard SS-EN :2007, edition 2 and SS-EN :2007 / AC:2008, edition 1. Copyright / Upphovsrätten till denna produkt tillhör SIS, Swedish Standards Institute, Stockholm, Sverige. Användningen av denna produkt regleras av slutanvändarlicensen som återfinns i denna produkt, se standardens sista sidor. Copyright SIS, Swedish Standards Institute, Stockholm, Sweden. All rights reserved. The use of this product is governed by the end-user licence for this product. You will find the licence in the end of this document. Upplysningar om sakinnehållet i standarden lämnas av SIS, Swedish Standards Institute, telefon Standarder kan beställas hos SIS Förlag AB som även lämnar allmänna upplysningar om svensk och utländsk standard. Information about the content of the standard is available from the Swedish Standards Institute (SIS), telephone Standards may be ordered from SIS Förlag AB, who can also provide general information about Swedish and foreign standards. Denna standard är framtagen av kommittén för Värmepumpar, SIS / TK 467. Har du synpunkter på innehållet i den här standarden, vill du delta i ett kommande revideringsarbete eller vara med och ta fram andra standarder inom området? Gå in på - där hittar du mer information.

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5 EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM EN October 2011 ICS Supersedes EN :2007 English Version Air conditioners, liuid chilling packages and heat pumps with electrically driven compressors for space heating and cooling - Part 3: Test methods Climatiseurs, groupes refroidisseurs de liuide et pompes à chaleur avec compresseur entraîné par moteur électriue pour le chauffage et la réfrigération des locaux - Partie 3: Méthodes d'essai Luftkonditionierer, Flüssigkeitskühlsätze und Wärmepumpen mit elektrisch angetriebenen Verdichtern für die Raumbeheizung und Kühlung - Teil 3: Prüfverfahren This European Standard was approved by CEN on 20 August CEN members are bound 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 CEN-CENELEC 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 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, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION C O M I T É E U R O P É E N D E N O R M A LIS A T I O N EUROPÄIS C HES KOMITEE FÜR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2011 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN :2011: E

6 Contents Page Foreword Scope...4 Normative references...4 Terms and definitions...4 Rating capacity test...4 Basic principles Method of calculation for the determination of capacities...4 Test apparatus...8 Uncertainties of measurement Test procedure Test results Heat recovery test for air-cooled multisplit systems Test installation Test procedure Test results Test report General information Additional information Rating test results Annex A (informative) Calorimeter test method Annex B (informative) Indoor air enthalpy test method Annex C (informative) Heating capacity tests - Flow chart and examples of different test seuences Annex D (informative) Conformance criteria Annex E (informative) Symbols used in annexes Annex F (informative) Test at system reduced capacity Annex G (informative) Individual unit tests Annex H (normative) Determination of the liuid pump efficiency Bibliography

7 Foreword This document (EN :2011) has been prepared by Technical Committee CEN/TC 113 Heat pumps and air conditioning units, the secretariat of which is held by AENOR. 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 April 2012, and conflicting national standards shall be withdrawn at the latest by April 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. This document supersedes EN :2007. This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association. EN comprises the following parts under the general title Air conditioners, liuid chilling packages and heat pumps with electrically driven compressors for space heating and cooling: Part 1: Terms and definitions, Part 2: Test conditions, Part 3: Test methods, Part 4: Reuirements. 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, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. 3

8 1 Scope 1.1 The scope of EN :2011 is applicable. 1.2 This European Standard specifies the test methods for the rating and performance of air conditioners, liuid chilling packages and heat pumps using either air, water or brine as heat transfer media, with electrically driven compressors when used for space heating and cooling. It also specifies the method of testing and reporting for heat recovery capacities, system reduced capacities and the capacity of individual indoor units of multisplit systems, applicable. 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 of the referenced document (including any amendments) applies. EN :2011, Air conditioners, liuid chilling packages and heat pumps with electrically driven compressors for space heating and cooling Part 1: Terms and definitions EN :2011, Air conditioners, liuid chilling packages and heat pumps with electrically driven compressors for space heating and cooling Part 2: Test conditions 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN :2011 apply. 4 Rating capacity test 4.1 Basic principles Method of calculation for the determination of capacities Heating capacity The heating capacity of air conditioners and of air-to-air or water-to-air heat pumps shall be determined by measurements in a calorimeter room (see Annex A) or by the air enthalpy method (see Annex B). The heating capacity of air-to-water, water-to-water heat pumps and liuid chilling packages shall be determined in accordance with the direct method at the water or brine heat exchanger, by determination of the volume flow of the heat transfer medium, and the inlet and outlet temperatures, taking into consideration the specific heat capacity and density of the heat transfer medium. For steady state operation, the heating capacity shall be determined using the following formula: P H P H ρ = ρ c t p is the heat capacity, expressed in Watts; is the volume flow rate, expressed in cubic metres per second; is the density, expressed in kilograms per cubic metre; (1) 4

9 c p t NOTE 1 NOTE 2 is the specific heat at constant pressure, expressed in joules per kilogram and kelvin; is the difference between inlet and outlet temperatures, expressed in kelvin. The mass flow rate can be determined directly instead of the term ( x ρ). The enthalpy change H can be directly measured instead of the term (c p x t). For the heating capacity calculation in transient operation, refer to The heating capacity shall be corrected for the heat from the fan or pump: a) If the fan or pump at the indoor heat exchanger is an integral part of the unit, the same power (calculated in or ) which is excluded from the total power input shall be also subtracted from the heating capacity; b) If the fan or pump at the indoor heat exchanger is not an integral part of the unit, the same power (calculated in or ) which is included in the effective power input shall be also added to the heating capacity Cooling capacity The cooling capacity of air conditioners and of air-to-air or water-to-air heat pumps shall be determined by measurements in a calorimeter room (see Annex A) or by the air enthalpy method (see Annex B). The cooling capacity of air-to-water, water-to-water heat pumps and liuid chilling packages shall be determined in accordance with the direct method at the water or brine heat exchanger, by determination of the volume flow of the heat transfer medium, and the inlet and outlet temperatures, taking into consideration the specific heat capacity and density of the heat transfer medium. The cooling capacity shall be determined using the following formula: PC P C ρ c p t NOTE 1 NOTE 2 = ρ c p t is the cooling capacity, expressed in watts; is the volume flow rate, expressed in cubic metres per second; is the density, expressed in kilograms per cubic metre; is the specific heat at constant pressure, expressed in joules per kilogram and kelvin; is the difference between inlet and outlet temperatures, expressed in kelvin. The mass flow rate can be determined directly instead of the term ( x ρ). The enthalpy change H can be directly measured instead of the term (c p x t) (2) The cooling capacity shall be corrected for the heat from the fan or pump: a) If the fan or pump at the evaporator is an integral part of the unit, the same power (calculated in or ) which is excluded from the total power input is also added to the cooling capacity. b) If the fan or pump at the evaporator is not an integral part of the unit, the same power (calculated in or ) which is included in the effective power input is also subtracted from the cooling capacity. 5

10 4.1.3 Heat recovery capacity The heat recovery capacity of air-to-water and water-to-water heat pumps and liuid chilling packages shall be determined in accordance with the direct method at the water or brine heat exchanger, by determination of the volume flow of the heat transfer medium, and the inlet and outlet temperatures, taking into consideration the specific heat capacity and density of the heat transfer medium. The heat recovery capacity shall be determined using the following formula: PHR = ρ c p t (3) P HR ρ c p t is the heat recovery capacity, expressed in Watts; is the volume flow rate, expressed in cubic metres per second; is the density, expressed in kilograms per cubic metre; is the specific heat at constant pressure, expressed in joules per kilogram and kelvin; is the difference between inlet and outlet temperatures expressed in kelvin. NOTE The mass flow rate can be determined directly instead of the term ( x ρ). The enthalpy change H can be directly measured instead of the term (c p x t) Power input of fans for units without duct connection In the case of units which are not designed for duct connection, i.e. which do not permit any external pressure differences, and which are euipped with an integral fan, the power absorbed by the fan shall be included in the effective power absorbed by the unit Power input of fans for units with duct connection The following corrections of the power input of fans shall be made to both indoor and outdoor fans, applicable If a fan is an integral part of the unit, only a fraction of the input of the fan motor shall be included in the effective power absorbed by the unit. The fraction that is to be excluded from the total power absorbed by the unit shall be calculated using the following formula: p e (4) p e is 0,3 by convention; is the measured available external static pressure difference, expressed in pascal, as defined in 2.52 of EN :2011; is the nominal air flow rate, expressed in cubic meters per second If no fan is provided with the unit, the proportional power input which is to be included in the effective power absorbed by the unit, shall be calculated using the following formula: 6

11 ( p ) i (5) p i is 0,3 by convention; is the measured internal static pressure difference, expressed in pascal, as defined in 2.53 of EN :2011; is the nominal air flow rate, expressed in cubic meters per second Power input of liuid pumps The following corrections of the power input of liuid pumps shall be made to both indoor and outdoor liuid pumps, applicable When the liuid pump is integrated into the unit, it shall be connected for operation. When the liuid pump is delivered by the manufacturer apart from the unit, it shall be connected for operation according to the manufacturer s instructions and be then considered as an integral part of the unit If a liuid pump is an integral part of the unit, only a fraction of the input to the pump motor shall be included in the effective power absorbed by the unit. The fraction which is to be excluded from the total power absorbed by the unit shall be calculated using the following formula: p e (6) is the efficiency of the pump calculated according to Annex H; p e is the measured available external static pressure difference, expressed in Pascal, as defined in 2.52 of EN :2011; is the nominal liuid flow rate, expressed in cubic meters per second If no liuid pump is provided with the unit, the proportional power input which is to be included in the effective power absorbed by the unit, shall be calculated using the following formula: p ( i ) (7) is the efficiency of the pump calculated according to Annex H; p i is the measured internal static pressure difference, expressed in pascal, as defined in 2.53 of EN :2011; is the nominal liuid flow rate, expressed in cubic meters per second In the case of appliances designed especially to operate on a distributing network of pressurised water without water-pump, no correction is to be applied to the power input. 7