Air conditioners, liquid chilling packages and heat pumps, with electrically driven compressors, for space heating and cooling - Testing and rating at part load conditions and calculation of seasonal performance

This European Standard covers air conditioners, heat pumps and liquid chilling packages. It applies to factory made units defined in EN 14511-1:2011, except single duct, control cabinet and close control units. This European Standard gives the calculation methods for the determination of reference seasonal energy efficiency SEER and SEERon and reference seasonal coefficient of performance SCOP, SCOPon and SCOPnet. Such calculation methods may be based on calculated or measured values. In case of measured values, this European Standard covers the test methods for determination of capacities, EER and COP values during active mode at part load conditions. It also covers test methods for electric power consumption during thermostat off mode, standby mode and crankcase heater mode. This European Standard serves as an input for the calculation of the system energy efficiency in heating mode of specific heat pump systems in buildings, as stipulated in the standard EN 15316-4-2.

Luftkonditionierer, Flüssigkeitskühlsätze und Wärmepumpen mit elektrisch angetriebenen Verdichtern zur Raumbeheizung und -kühlung - Prüfung und Leistungsbemessung unter Teillastbedingungen und Berechnung der saisonalen Arbeitszahl

Die vorliegende Europäische Norm behandelt Luftkonditionierer, Wärmepumpen und Flüssigkeitskühlsätze. Sie gilt für werkseitig hergestellte Geräte nach EN 14511 1, mit Ausnahme von Einkanal-Luftkonditio¬nierern, Schaltschrankkühlgeräten und Verfahrens-Luftkonditionierern.
Diese Europäische Norm enthält Berechnungsverfahren zur Ermittlung des Bezugswertes der saisonalen Arbeitszahl im Kühlbetrieb SEER und SEERon und des Bezugswertes der saisonalen Arbeitszahl im Heizbetrieb SCOP, SCOPon und SCOPnet.
Derartige Berechnungsverfahren können auf Rechen- oder Messwerten beruhen.
Im Fall von Messwerten behandelt diese Europäische Norm die Prüfverfahren zur Ermittlung von Leistungen, EER  und COP-Werten im Aktiv-Modus unter Teillastbedingungen. Außerdem behandelt sie Prüfverfahren zur Ermittlung des Stromverbrauchs im Modus „Temperaturregler AUS“, im Bereitschaftsmodus im Modus „Aus“ und im Modus mit Kurbelgehäuseheizung.
Die vorliegende Europäische Norm dient als Vorgabe zur Berechnung der systembezogenen Energieeffizienz im Heizbetrieb von spezifischen Wärmepumpensystemen in Gebäuden, wie in der Norm EN 15316 4 2 fest-gelegt.

Climatiseurs, groupes refroidisseurs de liquide et pompes à chaleur avec compresseur entraîné par moteur électrique pour le chauffage et la réfrigération des locaux - Essais et détermination des caractéristiques à charge partielle et calcul de performance saisonnière

La présente Norme européenne couvre les climatiseurs, les pompes à chaleur et les groupes refroidisseurs de liquide. Elle s'applique aux appareils fabriqués en usine définis dans l'EN 14511-1, excepté les appareils à simple raccordement, les appareils pour armoire de commande et les appareils pour enceinte contrôlée.
La présente Norme européenne donne les méthodes de calcul permettant de déterminer l'efficacité frigorifique saisonnière SEER et SEERon de référence, et le coefficient de performance saisonnier SCOP, SCOPon et SCOPnet de référence.
Ces méthodes de calcul peuvent être fondées sur des valeurs mesurées ou calculées.
Dans le cas de valeurs mesurées, la présente Norme européenne couvre les méthodes d'essai relatives à la détermination des puissances et des valeurs d'EER et de COP pendant le mode actif, dans les conditions de charge partielle. Elle couvre également les méthodes d'essai relatives à la consommation d'énergie électrique en mode arrêt par thermostat, en mode veille, en mode arrêt et en mode dispositif de chauffage de carter.
La présente Norme européenne sert d'entrée pour le calcul de l'efficacité frigorifique en mode chauffage des systèmes de pompes à chaleur spécifiques situés dans des bâtiments, comme stipulé dans l'EN 15316-4-2.

Klimatske naprave, enote za tekočinsko hlajenje in toplotne črpalke z električnimi kompresorji za ogrevanje in hlajenje prostora - Preskušanje in ocenitev ob delni obremenitvi ter izračun letnega učinka

Ta evropski standard se nanaša na klimatske naprave, toplotne črpalke in enote za tekočinsko hlajenje. Uporablja se za industrijske enote, opredeljene v standardu EN 14511-1:2011, razen za enote z enim vodom, enote s stikalno omaro in enote za neposredni nadzor. V tem evropskem standardu so navedene metode za izračun referenčne sezonske energetske učinkovitosti SEER in SEERon ter referenčnih sezonskih koeficientov učinkovitosti SCOP, SCOPon in SCOPnet. Takšne metode izračuna lahko temeljijo na izračunanih ali izmerjenih vrednostih. V primeru izmerjenih vrednosti ta evropski standard zajema preskusne metode za določanje zmogljivosti, vrednosti EER in COP med aktivnim delovanjem ob pogojih delne obremenitve. Zajema tudi preskusne metode za porabo električne energije enote ob izključenem termostatu, v stanju pripravljenosti in v načinu grelnika ohišja. Ta evropski standard se uporablja za vhodne podatke za izračun sistemske energetske učinkovitosti v načinu ogrevanja, in sicer za posebne sisteme toplotnih črpalk v stavbah, kot določa standard EN 15316-4-2.

General Information

Status
Withdrawn
Publication Date
11-Dec-2013
Withdrawal Date
10-Apr-2016
Technical Committee
Current Stage
9900 - Withdrawal (Adopted Project)
Start Date
08-Apr-2016
Due Date
01-May-2016
Completion Date
11-Apr-2016

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2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Luftkonditionierer, Flüssigkeitskühlsätze und Wärmepumpen mit elektrisch angetriebenen Verdichtern zur Raumbeheizung und -kühlung - Prüfung und Leistungsbemessung unter Teillastbedingungen und Berechnung der saisonalen ArbeitszahlClimatiseurs, groupes refroidisseurs de liquide et pompes à chaleur avec compresseur entraîné par moteur électrique pour le chauffage et la réfrigération des locaux - Essais et détermination des caractéristiques à charge partielle et calcul de performance saisonnièreAir conditioners, liquid chilling packages and heat pumps, with electrically driven compressors, for space heating and cooling - Testing and rating at part load conditions and calculation of seasonal performance91.140.30VLVWHPLVentilation and air-conditioning27.080Heat pumps23.120QDSUDYHVentilators. Fans. Air-conditionersICS:Ta slovenski standard je istoveten z:EN 14825:2013SIST EN 14825:2014en,fr,de01-januar-2014SIST EN 14825:2014SLOVENSKI

STANDARDSIST EN 14825:20121DGRPHãþD
SIST EN 14825:2014
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 14825
September 2013 ICS 27.080; 91.140.30 Supersedes EN 14825:2012English Version

Air conditioners, liquid chilling packages and heat pumps, with electrically driven compressors, for space heating and cooling - Testing and rating at part load conditions and calculation of seasonal performance

Climatiseurs, groupes refroidisseurs de liquide et pompes à chaleur avec compresseur entraîné par moteur électrique pour le chauffage et la réfrigération des locaux - Essais et détermination des caractéristiques à charge partielle et calcul de performance saisonnière

Luftkonditionierer, Flüssigkeitskühlsätze und Wärmepumpen mit elektrisch angetriebenen Verdichtern zur Raumbeheizung und -kühlung - Prüfung und Leistungsbemessung unter Teillastbedingungen und Berechnung der saisonalen Arbeitszahl This European Standard was approved by CEN on 18 July 2013.

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, 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 Kingdom.

EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre:
Avenue Marnix 17,

B-1000 Brussels © 2013 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 14825:2013: ESIST EN 14825:2014

EN 14825:2013 (E) 2 Contents Page Foreword ..............................................................................................................................................................5 Introduction .........................................................................................................................................................7 1 Scope ......................................................................................................................................................8 2 Normative references ............................................................................................................................8 3 Terms, definitions, symbols, abbreviated terms and units ...............................................................8 3.1 Terms and definitions ...........................................................................................................................8 3.2 Symbols, abbreviated terms and units ............................................................................................. 17 4 Part load conditions in cooling mode .............................................................................................. 19 4.1 General ................................................................................................................................................. 19 4.2 Air-to-air units ..................................................................................................................................... 19 4.3 Water-to-air units and brine-to-air units ........................................................................................... 20 4.4 Air-to-water units ................................................................................................................................ 20 4.5 Water-to-water and brine-to-water units........................................................................................... 21 5 Part load conditions in heating mode .............................................................................................. 22 5.1 General ................................................................................................................................................. 22 5.2 Air-to-air units ..................................................................................................................................... 23 5.3 Water-to-air and brine-to-air units ..................................................................................................... 24 5.4 Air-to-water units ................................................................................................................................ 25 5.4.1 General ................................................................................................................................................. 25 5.4.2 Low temperature application ............................................................................................................. 26 5.4.3 Medium temperature application ...................................................................................................... 29 5.4.4 High temperature application ............................................................................................................ 32 5.4.5 Very high temperature application.................................................................................................... 35 5.5 Water-to-water and brine-to-water units........................................................................................... 37 5.5.1 General ................................................................................................................................................. 37 5.5.2 Low temperature application ............................................................................................................. 38 5.5.3 Medium temperature application ...................................................................................................... 41 5.5.4 High temperature application ............................................................................................................ 44 5.5.5 Very high temperature application.................................................................................................... 47 6 Calculation methods for reference SEER and reference SEERon ................................................ 49 6.1 General formula for calculation of reference SEER ........................................................................ 49 6.2 Calculation of the reference annual cooling demand (QC) ............................................................. 49 6.3 Calculation of the reference annual electricity consumption (QCE) ............................................... 50 6.4 Calculation of reference SEERon...................................................................................................... 50 6.5 Calculation procedure for determination of EERbin(Tj) values at part load conditions B, C, D............................................................................................................................................................ 51 6.5.1 General ................................................................................................................................................. 51 6.5.2 For air-to-air & water-to-air units ....................................................................................................... 51 6.5.3 Air-to-water, water-to-water & brine-to-water units ......................................................................... 52 7 Calculation methods for reference SCOP, reference SCOPon and reference SCOPnet ............. 52 7.1 General formula for calculation of reference SCOP........................................................................ 52 7.2 Calculation of the reference annual heating demand (QH) ............................................................. 53 7.3 Calculation of the annual electricity consumption (QHE) ................................................................ 53 7.4 Calculation of reference SCOPon and reference SCOPnet ............................................................ 53 7.5 Calculation procedure for determination of COPbin(Tj) values at part load conditions A, B, C, D ....................................................................................................................................................... 54 7.5.1 General ................................................................................................................................................. 54 7.5.2 For air-to-air, brine-to-air and water-to-air units .............................................................................. 55 SIST EN 14825:2014

EN 14825:2013 (E) 3 7.5.3 For air-to-water, water-to-water and brine-to-water units ............................................................... 55 8 Test methods for testing capacities, EERbin(Tj) and COPbin(Tj) values during active mode at part load conditions ............................................................................................................. 56 8.1 General ................................................................................................................................................. 56 8.2 Basic principles ................................................................................................................................... 56 8.3 Uncertainties of measurement ........................................................................................................... 57 8.4 Test procedures for units with fixed capacity .................................................................................. 58 8.4.1 General ................................................................................................................................................. 58 8.4.2 Air-to-air and water-to-air units – Determination of the degradation coefficient Cd .................... 58 8.4.3 Air-to-water units and water-to-water units – Determination of the degradation factor Cc ........ 59 8.5 Test procedure for staged and variable capacity units (air-to-air, air-to-water, water-to-air, water/brine-to-water) ........................................................................................................................... 60 8.5.1 Air-to-air & water-to-air units.............................................................................................................. 60 8.5.2 Air-to-water and water/brine-to-water units ...................................................................................... 60 9 Test methods for electric power consumption during thermostat-off mode, standby mode and crankcase heater mode ............................................................................................................... 60 9.1 Measurement of electric power consumption during thermostat-off mode ................................. 60 9.2 Measurement of the electric power consumption during standby mode ...................................... 61 9.3 Measurement of the electric power consumption during crankcase heater mode ...................... 61 9.4 Measurement of the electric power consumption during off mode ............................................... 61 10 Test report ............................................................................................................................................ 61 11 Technical data sheet ........................................................................................................................... 62 Annex A (normative)

Applicable climate bin hours and hours for active mode, thermostat-off, standby, off mode for air conditioners below and equal to 12 kW................................................. 63 A.1 Climate bins ......................................................................................................................................... 63 A.1.1 Bin limit temperature ........................................................................................................................... 63 A.1.2 Cooling ................................................................................................................................................. 63 A.1.3 Heating.................................................................................................................................................. 63 A.2 Hours for active mode, thermostat-off, standby, off mode ............................................................. 65 A.2.1 Cooling ................................................................................................................................................. 65 A.2.2 Heating.................................................................................................................................................. 65 A.3 Hours used for crankcase heater mode ............................................................................................ 65 A.3.1 Cooling ................................................................................................................................................. 65 A.3.2 Heating.................................................................................................................................................. 66 Annex B (informative)

Calculation example for reference SEERon and reference SEER –Application to a reverse cycle air-to-air unit with variable capacity .............................................. 67 B.1 Calculation of SEERon ........................................................................................................................ 67 B.2 Calculation of SEER ............................................................................................................................ 68 B.2.1 Calculation of reference annual cooling demand (QC) according to Formula (2) ........................ 68 B.2.2 Calculation of reference SEER according to Formula (1) ............................................................... 69 Annex C (informative)

Calculation example for reference SCOPon and reference SCOPnet of a fixed capacity air-to-water heat pump used for floor heating......................................................... 70 Annex D (informative)

Adaption of water temperature for fixed capacity units ......................................... 74 Annex E (informative)

Determination of reference annual cooling/heating demands and determination of hours for active mode, thermostat-off, standby, off mode and crankcase heater mode ......................................................................................................................................... 77 E.1 General ................................................................................................................................................. 77 E.2 Determination of reference annual cooling/heating demands and hours for active mode, thermostat-off, standby, off mode ..................................................................................................... 77 E.3 Hours used for crankcase heater mode ............................................................................................ 79 Annex F (informative)

Compensation method for air-to-water and water/brine-to-water units ................ 80 F.1 General ................................................................................................................................................. 80 F.2 Compensation system for reduced capacity test in cooling mode ............................................... 80 F.3 Compensation system for reduced capacity test in heating mode ............................................... 80 SIST EN 14825:2014

EN 14825:2013 (E) 4 Annex G (normative)

Template for technical data sheet .............................................................................. 82 Annex ZA (informative)

Relationship between this European Standard and the requirements of Commission Regulation (EC) No 206/2012 ...................................................................................... 85 Bibliography ..................................................................................................................................................... 86

SIST EN 14825:2014

EN 14825:2013 (E) 5 Foreword This document (EN 14825:2013) 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 March 2014, and conflicting national standards shall be withdrawn at the latest by March 2014. 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 14825:2012. This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports essential requirements of EU Directive(s). For relationship with EU Directive(s), see informative Annex ZA, which is an integral part of this document. The main changes with respect to the previous edition are: a) Clause 3 “Terms, definitions, symbols, abbreviated terms and units” has been modified in order to be harmonised with Commission Regulation (EC) No 206/2012; b) modifications so that the text is aligned to the modified terms and definitions; c) a new normative Annex A, Applicable climate bin hours and hours for active mode, thermostat-off, standby, off mode for air conditioners below and equal to 12 kW, which includes Tables 26 and 37 of the previous standard; d) a new normative Annex G, Template for technical data sheet; e) a new informative Annex ZA, Relationship between this European Standard and the requirements of Commission Regulation (EC) No 206/2012; f) see the following cross references regarding structural changes: EN 14825:2013 EN 14825:2012 6.1 - 6.2 6.2 6.3 6.1 6.4 6.3 6.5 6.4 7.1 7.1 7.2 7.2 7.3 7.1 7.4 7.3 7.5 7.4 Annex A - Annex B Annex A Annex C Annex B Annex D Annex C Annex E Annex D Annex F Annex E Annex G - SIST EN 14825:2014

EN 14825:2013 (E) 6

Although this document be prepared in the frame of the Commission Regulation (EU) No 206/2012 implementing Directive 2009/125/EC with regard to ecodesign requirements for air conditioners and comfort fans, it may also be used to show compliance with the requirements of the European Directive 2010/30/EU and Commission Delegated Regulation (EU) No 626/2011. 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, 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 the United Kingdom. SIST EN 14825:2014

EN 14825:2013 (E) 7 Introduction Heat pumps, air conditioners and liquid chilling packages are, at present, selected and compared at a rated condition. This condition does not represent the usual operating conditions of the equipment over a season. This operating condition can be better assessed by comparing equipment at representative reduced capacities and determining the Seasonal Energy Efficiency Ratio and Seasonal Coefficient of Performance. Fixed capacity heat pumps, air conditioners and liquid chilling packages deal with varying loads by varying the operation time. The efficiency of the system is dependent on the effectiveness of the controlling thermostats. Variable capacity air conditioners, liquid chilling packages and heat pumps, by continuous or step control of the compressor, can more closely match the varying load improving system efficiency. This European Standard provides part load conditions and calculation methods for calculating the Seasonal Energy Efficiency Ratio (SEERon) and Seasonal Coefficient of Performance (SCOPon and SCOPnet) of such units when they are used to fulfil the cooling and heating demands. Other energy consumptions can occur when the unit is not used to fulfil the cooling and heating demands such as those from a crankcase heater or when the unit is on standby. These consumptions are considered in the calculation methods for reference SEER and reference SCOP. Reference SEER/SEERon and reference SCOP/SCOPon/SCOPnet calculations may be based on calculated or tested values. In case of tested values, this European Standard gives the methods for testing heat pumps, air conditioners and liquid chilling packages at part load conditions. The rating conditions and test methods of units operating at rated and application capacities are given in EN 14511-2 and EN 14511-3. The methods for calculation of system energy efficiencies for specific heat pump systems in buildings are given in EN 15316-4-2. SIST EN 14825:2014

EN 14825:2013 (E) 8 1 Scope This European Standard covers air conditioners, heat pumps and liquid chilling packages. It applies to factory made units defined in EN 14511-1, except single duct, control cabinet and close control units. This European Standard gives the calculation methods for the determination of reference seasonal energy efficiency SEER and SEERon and reference seasonal coefficient of performance SCOP, SCOPon and SCOPnet. Such calculation methods may be based on calculated or measured values. In case of measured values, this European Standard covers the test methods for determination of capacities, EER and COP values during active mode at part load conditions. It also covers test methods for electric power consumption during thermostat-off mode, standby mode, off-mode and crankcase heater mode. This European Standard serves as an input for the calculation of the system energy efficiency in heating mode of specific heat pump systems in buildings, as stipulated in the standard EN 15316-4-2. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable 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 14511-1, Air conditioners, liquid chilling packages and heat pumps with electrically driven compressors for space heating

EN 14511-2, Air conditioners, liquid chilling packages and heat pumps with electrically driven compressors for

EN 14511-3:2011, Air conditioners, liquid chilling packages and heat pumps with electrically driven

EN 14511-4, Air conditioners, liquid chilling packages and heat pumps with electrically driven compressors for art 4: lperating requirements, marking and instructions 3 Terms, definitions, symbols, abbreviated terms and units 3.1 Terms and definitions For the purposes of this document, the terms and definitions given in EN 14511-1 (unless otherwise stated) and the following apply. 3.1.1 active mode mode corresponding to the hours with a cooling or heating load of the building and whereby the cooling or heating function of the unit is activated Note 1 to entry:

This condition may involve on/off-cycling of the unit in order to reach or maintain a required indoor air temperature. SIST EN 14825:2014

EN 14825:2013 (E) 9 3.1.2 active mode seasonal coefficient of performance SCOPon average coefficient of performance of the unit in active mode for the designated heating season, constructed from the part load, electric back up heating capacity (where required) and bin-specific coefficients of performance (COPbin(Tj) and weighted by the bin hours the bin condition occurs Note 1 to entry:

For calculation of SCOPon, the power consumption during thermostat-off mode, standby mode, off mode or that of the crankcase heater are excluded. The power consumption of an electric back up heater is added for the part load conditions where the declared capacity of the unit is lower than the heating load, regardless whether this back up heater is included in the unit or not. Note 2 to entry:

Expressed in kWh/kWh. 3.1.3 active mode seasonal energy efficiency ratio SEERon average energy efficiency ratio of the unit in active mode for the cooling function, constructed from part load and bin-specific energy efficiency ratio's (EERbin(Tj)) and weighted by the bin hours the bin condition occurs Note 1 to entry:

For calculation of SEERon, power consumption during thermostat-off mode, standby mode or that of the crankcase heater are excluded. Note 2 to entry:

Expressed in kWh/kWh. 3.1.4 annual electricity consumption for cooling QCE electricity consumption [kWh/a] required to meet the reference annual cooling demand and calculated as the reference annual cooling demand divided by the active mode seasonal energy efficiency ratio (SEERon) and the electricity consumption of the unit for thermostat-off-, standby-, off- and crankcase heater-mode during the cooling season 3.1.5 annual electricity consumption for heating QHE electricity consumption [kWh/a] which is required to meet the indicated reference annual heating demand, which pertains to a designated heating season and which is calculated as the Reference annual heating demand divided by the active mode seasonal coefficient of performance (SCOPon) and the electricity consumption of the unit for thermostat-off-, standby-, off- and crankcase heater-mode during the heating season 3.1.6 application SCOP, application SCOPon and SCOPnet SCOP and SCOPon/SCOPnet that takes into account the specific application and the specific location of the unit, which are different from the ones used for determining the reference SCOP and reference SCOPon/SCOPnet given in this European Standard Note 1 to entry:

The calculation procedures used to determine the application SCOPon/SCOPnet, if required, are those in this European Standard for reference SCOPon/SCOPnet. However, the heating bins used in the calculations will be those of the actual location of the building. The heating loads as well as the hours of use will be those of the actual building. 3.1.7 application SEER and application SEERon SEER and SEERon that takes into account the specific application and the specific location of the unit, which are different from the ones used for determining the reference SEER and reference SEERon given in this European Standard SIST EN 14825:2014

EN 14825:2013 (E) 10 Note 1 to entry:

The calculation procedures used to determine the application SEERon, if required, are those in this European Standard for reference SEERon. However, the cooling bins used in the calculations will be those of the actual location of the building. The cooling loads as well as the hours of use will be those of the actual building. 3.1.8 bin hours hj sum of all hours occurring at a given temperature for a specific location Note 1 to entry:

The number is rounded to a whole number and is derived from representative weather data over the 1982-1999 period. Note 2 to entry:

For the reference heating seasons the specific locations are Strasbourg (average), Helsinki (colder) and Athens (warmer). 3.1.9 bin limit temperature temperature in the bin for which no more heating or cooling is required Note 1 to entry:

The bin limit temperature equals 16 °C for all climates in cooling and heating applications. 3.1.10 bin-specific coefficient of performance COPbin(Tj) coefficient of performance specific for every bin j with outdoor temperature Tj in a season 3.1.11 bin-specific energy efficiency ratio EERbin(Tj) energy efficiency ratio specific for every bin j with outdoor temperature Tj in a season 3.1.12 bivalent temperature Tbivalent lowest outdoor temperature point at which the unit is declared to have a capacity able to meet 100 % of the heating load Note 1 to entry:

Below this point, the unit may still deliver capacity, but additional back up heating is necessary to fulfil the full heating load.

3.1.13 capacity control ability of the unit to change its capacity by changing the volumetric flow rate of the refrigerant Note

...

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