prEN 14825
(Main)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
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, including comfort and process chillers. It applies to factory made units defined in EN 14511-1, except single duct, double duct, control cabinet and close control units. It also covers direct expansion-to-water(brine) heat pumps (DX-to-water) as defined in EN 15879-1.
This European Standard also covers hybrid heat pumps as defined in this standard.
This European Standard gives the temperatures and part load conditions and the calculation methods for the determination of seasonal energy efficiency SEER and SEERon, seasonal space cooling energy efficiency ηs,c seasonal coefficient of performance SCOP, SCOPon and SCOPnet, and seasonal space heating energy efficiency ηs,h and seasonal energy performance ratio SEPR.
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.
NOTE 1 The word "unit" is used instead of the full terms of the products.
NOTE 2 The word "cooling" is used to refer to both space cooling and process cooling.
NOTE 3 The word "heating" is used to refer to space heating.
Luftkonditionierer, Flüssigkeitskühlsätze und Wärmepumpen mit elektrisch angetriebenen Verdichtern zur Raumbeheizung und -kühlung - Prüfung und Leistungsbemessung unter Teillastbedingungen und Berechnung der jahreszeitbedingten Leistungszahl
Das vorliegende Dokument behandelt Luftkonditionierer, Wärmepumpen und Flüssigkeitskühlsätze, einschließlich Komfort- und Prozesskühler. Sie gilt für fabrikmäßig hergestellte Geräte nach EN 14511-1, mit Ausnahme von Einkanal-Luftkonditionierern, Zweikanal-Luftkonditionierern, Schaltschrank-Kühlgeräten und Verfahrens-Luftkonditionierern. Sie behandelt zudem Direktübertragung-Wasser/Sole-Wärmepumpen, wie sie in EN 15879-1 festgelegt sind.
Dieses Dokument behandelt des Weiteren Hybridgeräte, wie sie in dieser Norm definiert werden.
Dieses Dokument enthält die Temperaturen und Teillastbedingungen sowie Berechnungsverfahren zur Ermittlung der saisonalen Arbeitszahl im Kühlbetrieb SEER und SEERon, der jahreszeitbedingten Raumkühlungs-Energieeffizienz ηs,c der saisonalen Arbeitszahl im Heizbetrieb SCOP, SCOPon und SCOPnet, der jahreszeitbedingten Raumheizungs-Energieeffizienz ηs,h sowie der Jahres-Energieeffizienz SEPR.
Derartige Berechnungsverfahren können auf Rechen- oder Messwerten beruhen.
Im Fall von Messwerten behandelt dieses Dokument die Prüfverfahren zur Ermittlung von Leistungen, EER- und COP-Werten im Aktiv-Modus unter Teillastbedingungen. Außerdem behandelt es Prüfverfahren zur Ermittlung der Leistungsaufnahme im Modus „Temperaturregler AUS“, im Bereitschaftsmodus, im Modus „Aus“ und im Modus mit Kurbelgehäuseheizung.
ANMERKUNG 1 Das Wort „Gerät“ wird anstelle der vollständigen Produktbezeichnungen verwendet.
ANMERKUNG 2 Das Wort „Heizung“ bezieht sich auf die Raumheizung.
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
Le présent document couvre les climatiseurs, les pompes à chaleur et les groupes refroidisseurs de liquide, y compris les refroidisseurs de confort et industriels. Il s'applique aux appareils fabriqués en usine définis dans l'EN 14511-1, excepté les appareils à simple et à double conduit, les appareils pour armoire de commande et les appareils pour enceinte contrôlée. Il couvre également les pompes à chaleur à échange direct avec l'eau (glycolée) (DX/eau (glycolée)) telles que définies dans l'EN 15879-1.
Le présent document couvre également les appareils hybrides tels que définis dans le présent document.
Le présent document donne les températures, les conditions de charge partielle et les méthodes de calcul permettant de déterminer l'efficacité énergétique saisonnière SEER et SEERon, l'efficacité énergétique saisonnière du refroidissement des locaux ηs,c, le coefficient de performance saisonnier SCOP, SCOPon et SCOPnet, l'efficacité énergétique saisonnière du chauffage des locaux ηs,h et le coefficient d'efficacité énergétique saisonnier (SEPR).
Ces méthodes de calcul peuvent être fondées sur des valeurs mesurées ou calculées.
Dans le cas de valeurs mesurées, le présent document 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. Il couvre également les méthodes d'essai relatives à la puissance absorbée en mode arrêt par thermostat, en mode veille, en mode arrêt et en mode dispositif de chauffage de carter.
NOTE 1 Le mot « appareil » est utilisé à la place des termes complets des produits.
NOTE 2 Le mot « chauffage » est utilisé pour la référence au chauffage des locaux.
Klimatske naprave, enote za hlajenje kapljevine ter toplotne črpalke za ogrevanje in hlajenje prostora z električnimi kompresorji - Preskušanje in ocenitev ob delni obremenitvi ter izračun letnega učinka
General Information
RELATIONS
Standards Content (sample)
SLOVENSKI STANDARD
oSIST prEN 14825:2020
01-oktober-2020
Klimatske naprave, enote za hlajenje kapljevine ter toplotne črpalke za ogrevanje
in hlajenje prostora z električnimi kompresorji - Preskušanje in ocenitev ob delni
obremenitvi ter izračun letnega učinkaAir 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 performanceLuftkonditionierer, Flüssigkeitskühlsätze und Wärmepumpen mit elektrisch
angetriebenen Verdichtern zur Raumbeheizung und -kühlung - Prüfung und
Leistungsbemessung unter Teillastbedingungen und Berechnung der
jahreszeitbedingten Leistungszahl
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 performanceTa slovenski standard je istoveten z: prEN 14825
ICS:
23.120 Zračniki. Vetrniki. Klimatske Ventilators. Fans. Air-
naprave conditioners
27.080 Toplotne črpalke Heat pumps
91.140.30 Prezračevalni in klimatski Ventilation and air-
sistemi conditioning systems
oSIST prEN 14825:2020 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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oSIST prEN 14825:2020
DRAFT
EUROPEAN STANDARD
prEN 14825
NORME EUROPÉENNE
EUROPÄISCHE NORM
October 2020
ICS 27.080; 91.140.30 Will supersede EN 14825:2018
English 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 Luftkonditionierer, Flüssigkeitskühlsätze und
pompes à chaleur avec compresseur entraîné par Wärmepumpen mit elektrisch angetriebenen
moteur électrique pour le chauffage et la réfrigération Verdichtern zur Raumbeheizung und -kühlung -
des locaux - Essais et détermination des Prüfung und Leistungsbemessung untercaractéristiques à charge partielle et calcul de Teillastbedingungen und Berechnung der
performance jahreszeitbedingten LeistungszahlThis draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee
CEN/TC 113.If this draft becomes a European Standard, 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.
This draft European Standard was established by CEN 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, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are
aware and to provide supporting documentation.Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without
notice and shall not be referred to as a European Standard.EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2020 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 14825:2020 E
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Contents
Page
European foreword ....................................................................................................................................................... 7
Introduction .................................................................................................................................................................... 9
1 Scope ................................................................................................................................................................. 10
2 Normative references ................................................................................................................................. 10
3 Terms, definitions, symbols, abbreviated terms and units .......................................................... 11
3.1 Terms and definitions ................................................................................................................................ 11
3.2 Symbols, abbreviated terms and units ................................................................................................. 24
4 Part load conditions for space cooling ................................................................................................. 28
4.1 General ............................................................................................................................................................. 28
4.2 Air-to-air units .............................................................................................................................................. 28
4.3 Water(brine)-to-air units .......................................................................................................................... 29
4.4 Air-to-water(brine) units .......................................................................................................................... 29
4.5 Water(brine)-to-water(brine) units ..................................................................................................... 30
5 Calculation methods for seasonal space cooling efficiency η , SEER and SEER ................. 31
s,c on5.1 General ............................................................................................................................................................. 31
5.2 Calculation of the seasonal space cooling efficiency η ................................................................ 31
s,c5.3 General formula for calculation of SEER .............................................................................................. 32
5.4 Calculation of the reference annual cooling demand Q ................................................................ 32
5.5 Calculation of the reference annual energy consumption for space cooling Q .................. 32
5.6 Calculation of SEER ................................................................................................................................... 33
5.7 Calculation procedure for determination of EERbin values at part load conditions A,
B, C, D ................................................................................................................................................................ 34
5.7.1 General ............................................................................................................................................................. 34
5.7.2 Calculation procedure for fixed capacity units ................................................................................. 34
5.7.3 Calculation procedure for staged and variable capacity units .................................................... 35
6 Part load conditions for space heating ................................................................................................. 35
6.1 General ............................................................................................................................................................. 35
6.2 Air-to-air units .............................................................................................................................................. 36
6.3 Water(brine)-to-air-units ......................................................................................................................... 37
6.4 Air-to-water(brine) units .......................................................................................................................... 38
6.4.1 General ............................................................................................................................................................. 38
6.4.2 Low temperature application .................................................................................................................. 38
6.4.3 Intermediate temperature application ................................................................................................ 39
6.4.4 Medium temperature application .......................................................................................................... 40
6.4.5 High temperature application ................................................................................................................. 41
6.5 DX-to-water(brine) and water(brine)-to-water(brine) units ..................................................... 42
6.5.1 General ............................................................................................................................................................. 42
6.5.2 Low temperature application .................................................................................................................. 42
6.5.3 Intermediate temperature application ................................................................................................ 43
6.5.4 Medium temperature application .......................................................................................................... 44
6.5.5 High temperature application ................................................................................................................. 45
7 Calculation methods for seasonal space heating efficiency η , SCOP, SCOP ands,h on
SCOP of heat pumps ................................................................................................................................. 46
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7.1 General ............................................................................................................................................................. 46
7.2 Calculation of the seasonal space heating efficiency η ................................................................ 46
s,h7.3 General formula for calculation of SCOP .............................................................................................. 47
7.4 Calculation of the reference annual heating demand Q ................................................................ 47
7.5 Calculation of the annual energy consumption for heating Q ................................................... 48
7.6 Calculation of SCOP and SCOP ............................................................................................................ 48
on net7.7 Calculation procedure for determination of COP values at part load conditions A to
binG .......................................................................................................................................................................... 50
7.7.1 General ............................................................................................................................................................. 50
7.7.2 Calculation procedure for fixed capacity units .................................................................................. 50
7.7.3 Calculation procedure for staged and variable capacity units ..................................................... 51
8 Test methods for hybrid units ................................................................................................................. 51
8.1 General ............................................................................................................................................................. 51
8.2 Separated method ........................................................................................................................................ 52
8.2.1 General ............................................................................................................................................................. 52
8.2.2 Heat pump testing ........................................................................................................................................ 52
8.2.3 Boiler testing .................................................................................................................................................. 52
8.2.4 Energy efficiency and seasonal coefficient of performance calculations ................................. 52
8.3 Combined test method ................................................................................................................................ 54
8.3.1 General ............................................................................................................................................................. 54
8.3.2 Test conditions .............................................................................................................................................. 54
8.3.3 Test installation ............................................................................................................................................ 54
8.3.4 Calculation of gas input .............................................................................................................................. 54
8.3.5 Calculation of liquid fuel input ................................................................................................................ 55
8.3.6 Calculation of annual fossil fuel consumption ................................................................................... 55
8.3.7 Energy efficiency and seasonal coefficient of performance calculations ................................. 56
9 Part load conditions for process cooling .............................................................................................. 58
10 Calculation method for SEPR .................................................................................................................... 59
10.1 General formula for calculation of SEPR .............................................................................................. 59
10.2 Calculation procedure for determination of EER values at part load conditions A, B,
binC, D ...................................................................................................................................................................... 60
10.2.1 General ............................................................................................................................................................. 60
10.2.2 Calculation procedure for fixed capacity process chillers ............................................................. 61
10.2.3 Calculation procedure for variable capacity process chillers ...................................................... 61
11 Test methods for testing capacities, EER and COP values during active mode atbin bin
part load conditions ..................................................................................................................................... 61
11.1 General ............................................................................................................................................................. 61
11.2 Refrigerant piping ........................................................................................................................................ 62
11.3 Basic principles ............................................................................................................................................. 62
11.4 Uncertainties of measurement ................................................................................................................ 64
11.5 Test procedures for units with fixed capacity .................................................................................... 65
11.5.1 General ............................................................................................................................................................. 65
11.5.2 Air-to-air and water(brine)-to-air units – Determination of the degradation
coefficient Cd .................................................................................................................................................. 66
11.5.3 Air-to-water(brine), water(brine)-to-water(brine) and DX-to-water(brine) units –
Determination of the degradation coefficient Cd .............................................................................. 68
11.6 Test procedure for staged and variable capacity units ................................................................... 69
11.6.1 General ............................................................................................................................................................. 69
11.6.2 Settings for the required capacity ratio ................................................................................................ 69
11.6.3 Compensation method ................................................................................................................................ 69
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12 Test methods for electric power input during thermostat-off mode, standby mode
and crankcase heater mode and off mode .......................................................................................... 69
12.1 Uncertainties of measurement ................................................................................................................ 69
12.2 Measurement of electric power input during thermostat-off mode ......................................... 70
12.3 Measurement of the electric power input during standby mode ............................................... 70
12.4 Measurement of the electric power input during crankcase heater mode ............................. 70
12.5 Measurement of the electric power input during off mode .......................................................... 71
13 Test report ...................................................................................................................................................... 71
14 Technical documentation .......................................................................................................................... 71
15 Testing and rating of individual indoor units .................................................................................... 71
Annex A (normative) Applicable climate bins and hours for air conditioners with rated
capacity of ≤ 12 kW for cooling, or heating if the product has no cooling function ............. 72
A.1 Climate bins .................................................................................................................................................... 72
A.1.1 Bin limit temperature ................................................................................................................................. 72
A.1.2 Cooling.............................................................................................................................................................. 72
A.1.3 Heating ............................................................................................................................................................. 73
A.2 Hours for active mode, thermostat-off, standby, off mode ........................................................... 75
A.2.1 Cooling.............................................................................................................................................................. 75
A.2.2 Heating ............................................................................................................................................................. 75
A.3 Hours used for crankcase heater mode ............................................................................................... 75
A.3.1 Cooling.............................................................................................................................................................. 75
A.3.2 Heating ............................................................................................................................................................. 76
Annex B (normative) Applicable climate bins and hours for air/water(brine)/DX-to-
water(brine) heat pumps with a rated heat output ≤ 400 kW .................................................... 77
B.1 Climate bins .................................................................................................................................................... 77
B.1.1 Bin limit temperature ................................................................................................................................. 77
B.1.2 Heating ............................................................................................................................................................. 77
B.2 Hours for active, thermostat-off, standby and off modes – Heating .......................................... 79
B.3 Hours used for crankcase heater mode – Heating............................................................................ 79
Annex C (normative) Applicable climate bins and hours for process chillers .................................... 80
C.1 Climate bins .................................................................................................................................................... 80
Annex D (normative) Applicable climate bins and hours for air-to-air units > 12 kW,
water(brine)-to-air units and comfort chillers ................................................................................. 84
D.1 Climate bins .................................................................................................................................................... 84
D.1.1 Bin limit temperature ................................................................................................................................. 84
D.1.2 Cooling.............................................................................................................................................................. 84
D.1.3 Heating ............................................................................................................................................................. 85
D.2 Hours for active, thermostat-off, standby and off modes .............................................................. 87
D.2.1 Cooling.............................................................................................................................................................. 87
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D.2.2 Heating ............................................................................................................................................................. 87
D.3 Hours used for crankcase heater mode ................................................................................................ 87
D.3.1 Cooling .............................................................................................................................................................. 87
D.3.2 Heating ............................................................................................................................................................. 87
Annex E (normative) Templates for technical documentation ................................................................. 88
E.1 General ............................................................................................................................................................. 88
E.2 Air-to-air units ≤ 12 kW .............................................................................................................................. 88
E.3 Space heaters: air-to-water(brine), water(brine)-to-water(brine) and DX-to-water(brine) units ≤ 400 kW .................................................................................................................... 92
E.4 Hybrid units .................................................................................................................................................... 94
E.5 Process Chillers ............................................................................................................................................. 96
E.6 Comfort chillers, air-to-air (>12 kW) and water(brine)-to-air air conditioners not
exceeding 2 MW ............................................................................................................................................. 97
E.7 Air-to-air and water(brine)-to-air heat pumps not exceeding 1 MW ........................................ 98
Annex F (informative) Determination of water(brine) temperature for fixed capacity units
with variable outlet temperature ........................................................................................................ 100
F.1 General .......................................................................................................................................................... 100
F.2 Test procedure for an air-to-water unit with fixed water flow rate ....................................... 100
F.3 Test procedure for an air-to-water unit with variable water flow rate ................................. 101
Annex G (informative) Calculation example for SEER and SEER – Application to areversible air-to-air unit with variable capacity ............................................................................ 103
G.1 Calculation of SEER ................................................................................................................................. 103
G.2 Calculation of SEER .................................................................................................................................... 105
G.2.1 Calculation of reference annual cooling demand (Q ) according to Formula (3) .............. 105
G.2.2 Calculation of SEER according to Formula (6) ................................................................................. 105
Annex H (informative) Calculation example for SCOP and SCOP – Application to a fixed
on netcapacity air-to-water(brine) heat pump used for low temperature application ............... 106
Annex I (informative) Calculation example for SCOP and SCOP – Application to a fixed
on netcapacity brine-to-water(brine) heat pump used for medium temperature
application ................................................................................................................................................... 112
Annex J (informative) Calculation examples for SCOP for hybrid units ........................................... 119
J.1 Calculation example for SCOP for variable speed hybrid unit based on heat pump
and boiler separated tests ...................................................................................................................... 119
J.2 Calculation example for SCOP for hybrid unit using combined test method .................... 121
Annex K (informative) Calculation example for SEPR – Application to a process chiller with
staged capacity ........................................................................................................................................... 124
K.1 Rating performance .................................................................................................................................. 124
Annex L (informative) Compensation methods for air-to-water(brine) and water(brine)-to-
water(brine) units ..................................................................................................................................... 127
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L.1 General ........................................................................................................................................................... 127
L.2 Compensation system for reduced capacity test in cooling mode ........................................... 127
L.3 Compensation system for reduced capacity test in heating mode ........................................... 127
Annex M (normative) Rating of outdoor units of multi-split air conditioners and heat
pumps ............................................................................................................................................................. 129
M.1 General ......................................................................
...
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