Condensing units for refrigeration - Rating conditions, tolerances and presentation of manufacturer's performance data

This European Standard specifies the rating conditions, tolerances and presentation of manufacturer's performance data for condensing units for refrigeration with compressors of the positive-displacement type. These include single stage compressors and single and two stage compressors having an integrated means of fluid sub cooling. This is required so that a comparison of different condensing units can be made. The data relate to the refrigerating capacity and power absorbed and include requirements for part-load performance where applicable.

Verflüssigungssätze für die Kälteanwendung - Nennbedingungen, Toleranzen und Darstellung von Leistungsdaten des Herstellers

Diese Europäische Norm legt die Nennbedingungen, Toleranzen und die Darstellung der Leistungsdaten des Herstellers für Verflüssigungssätze für die Kälteanwendung mit Verdichtern des Verdrängertyps fest. Dazu gehören einstufige Verdichter sowie ein  und zweistufige Verdichter mit eingebauten Einrichtungen zur Unterkühlung von Flüssigkeiten. Dies ist notwendig, damit ein Vergleich von unterschiedlichen Verflüssigungssätzen durchgeführt werden kann. Die Daten beziehen sich auf die Kälteleistung und die Leistungsaufnahme und umfassen Anforderungen an die Teillastleistung, sofern zutreffend.

Unités de condensation pour la réfrigération - Détermination des caractéristiques, tolérances et présentation des performances du fabricant

La présente Norme européenne spécifie les conditions de détermination des caractéristiques, les tolérances et la présentation des performances des unités de condensation pour la réfrigération avec compresseurs de type volumétrique. Elles incluent les compresseurs à un ou deux étages équipés d’un système de sous-refroidissement du fluide. Ceci est nécessaire afin de permettre une comparaison entre différentes unités de condensation. Les données se rapportent à la puissance frigorifique et à la puissance absorbée et comprennent les exigences pour les performances à charge partielle, le cas échéant.

Kondenzacijske enote za hladilne naprave - Ocenjevalni pogoji za razvrščanje, odstopanja in predstavitev podatkov o lastnostih, ki jih navede proizvajalec (vključuje dopolnilo A1)

General Information

Status
Published
Publication Date
13-Sep-2020
Technical Committee
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
20-Aug-2020
Due Date
25-Oct-2020
Completion Date
14-Sep-2020

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SLOVENSKI STANDARD
SIST EN 13215:2017+A1:2020
01-oktober-2020
Nadomešča:
SIST EN 13215:2017
Kondenzacijske enote za hladilne naprave - Ocenjevalni pogoji za razvrščanje,
odstopanja in predstavitev podatkov o lastnostih, ki jih navede proizvajalec
(vključuje dopolnilo A1)

Condensing units for refrigeration - Rating conditions, tolerances and presentation of

manufacturer's performance data
Verflüssigungssätze für die Kälteanwendung - Nennbedingungen, Toleranzen und
Darstellung von Leistungsdaten des Herstellers

Unités de condensation pour la réfrigération - Détermination des caractéristiques,

tolérances et présentation des performances du fabricant
Ta slovenski standard je istoveten z: EN 13215:2016+A1:2020
ICS:
27.200 Hladilna tehnologija Refrigerating technology
SIST EN 13215:2017+A1:2020 en,fr,de

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
SIST EN 13215:2017+A1:2020
---------------------- Page: 2 ----------------------
SIST EN 13215:2017+A1:2020
EN 13215:2016+A1
EUROPEAN STANDARD
NORME EUROPÉENNE
August 2020
EUROPÄISCHE NORM
ICS 27.200 Supersedes EN 13215:2016
English Version
Condensing units for refrigeration - Rating conditions,
tolerances and presentation of manufacturer's
performance data

Unités de condensation pour la réfrigération - Verflüssigungssätze für die Kälteanwendung -

Détermination des caractéristiques, tolérances et Nennbedingungen, Toleranzen und Darstellung von

présentation des performances du fabricant Leistungsdaten des Herstellers

This European Standard was approved by CEN on 24 September 2016 and includes Amendment 1 approved by CEN on 5 July

2020.

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, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and

United Kingdom.
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. EN 13215:2016+A1:2020 E

worldwide for CEN national Members.
---------------------- Page: 3 ----------------------
SIST EN 13215:2017+A1:2020
EN 13215:2016+A1:2020 (E)
Contents Page

European foreword ....................................................................................................................................................... 4

1 Scope .................................................................................................................................................................... 5

2 Normative references .................................................................................................................................... 5

3 Terms and definitions ................................................................................................................................... 5

4 Symbols and abbreviations ......................................................................................................................... 6

5 Parameters for the presentation of performance data ..................................................................... 7

6 General requirements ................................................................................................................................... 7

7 Performance data ............................................................................................................................................ 8

7.1 General ................................................................................................................................................................ 8

7.2 Part load performance data ........................................................................................................................ 8

7.3 Tabular or graphical form ........................................................................................................................... 8

7.4 Determination of the power absorbed by the condensing unit ..................................................... 8

7.4.1 Condensing units including the compressor motor ........................................................................... 8

7.4.2 Motors with a specific factory assembled or factory specified means for variable

speed .................................................................................................................................................................... 9

7.4.3 Externally driven compressors without motor .................................................................................... 9

8 Rating conditions ............................................................................................................................................ 9

8.1 General ................................................................................................................................................................ 9

8.2 Standard reference points ........................................................................................................................... 9

8.3 Air cooled condensing units ..................................................................................................................... 10

8.3.1 General ............................................................................................................................................................. 10

8.3.2 Data for SEPR calculation .......................................................................................................................... 10

8.4 Water cooled condensing units ............................................................................................................... 11

9 Tolerances ...................................................................................................................................................... 11

10 Correction factors ........................................................................................................................................ 11

10.1 Superheat ........................................................................................................................................................ 11

10.2 Compressors speed ..................................................................................................................................... 12

Annex A (normative) Calculation of SEPR......................................................................................................... 13

A.1 General ............................................................................................................................................................. 13

A.2 Condensing unit without capacity control .......................................................................................... 13

A.3 Condensing unit with stepwise capacity control .............................................................................. 13

A.4 Calculation of SEPR ...................................................................................................................................... 14

Annex B (normative) Determination of evaporating temperature with refrigerant mixtures .... 18

Annex ZA (informative) Relationship between this European Standard and the eco-design

requirements of Commission Regulation (EU) No 2015/1095 ................................................... 20

Bibliography ................................................................................................................................................................. 21

---------------------- Page: 4 ----------------------
SIST EN 13215:2017+A1:2020
EN 13215:2016+A1:2020 (E)
Tables

Table 1 — Symbols and abbreviations .....................................................................................................................................6

Table 2 — Indices .............................................................................................................................................................................7

Table 3 — Parameters for the presentation of performance data ...............................................................................7

Table 4 — Standard reference points .......................................................................................................................................9

Table 5 — Actual performance in relation to published data ..................................................................................... 11

Table A.1 — Required input for SEPR calculation ............................................................................................................ 14

Table A.2 — Ambient temperatures and duration for SEPR determination ......................................................... 15

Table ZA.1 — Correspondence between this European Standard and Commission Regulation (EU)

No 2015/1095 of 5 May 2015 implementing Directive 2009/125/EC of the European

Parliament and of the Council with regard to ecodesign requirements for professional

refrigerated storage cabinets, blast cabinets, condensing units and process chillers and

Commission’s standardization request M/495 (Ecodesign) ..................................................................... 20

---------------------- Page: 5 ----------------------
SIST EN 13215:2017+A1:2020
EN 13215:2016+A1:2020 (E)
European foreword

This document (EN 13215:2016+A1:2020) 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 February 2021, and conflicting national standards

shall be withdrawn at the latest by February 2021.

Attention is drawn to the possibility that some of the elements of this document may be the subject of

patent rights. CEN shall not be held responsible for identifying any or all such patent rights.

This document includes Amendment 1 approved by CEN on 5 July 2020.
This document supersedes !EN 13215:2016".

The start and finish of text introduced or altered by amendment is indicated in the text by tags !".

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 listed below:

a) part load conditions according to M/495 “Standardisation mandate to CEN, CENELEC and ETSI

under Directive 2009/125/EC relating to harmonised standards in the field of Ecodesign” are taken

into account;
b) inclusion of the calculation of seasonal energy performance ratio (SEPR).

According to the CEN-CENELEC Internal Regulations, the national standards organisations 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, Republic of

North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the

United Kingdom.
---------------------- Page: 6 ----------------------
SIST EN 13215:2017+A1:2020
EN 13215:2016+A1:2020 (E)
1 Scope

This European Standard specifies the rating conditions, tolerances and presentation of manufacturer's

performance data for condensing units for refrigeration with compressors of the positive-displacement

type. These include single stage compressors and single and two stage compressors having an

integrated means of fluid sub cooling. This is required so that a comparison of different condensing

units can be made. The data relate to the refrigerating capacity and power absorbed and include

requirements for part-load performance where applicable.
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 378-1:2016, Refrigerating systems and heat pumps - Safety and environmental requirements - Part

1: Basic requirements, definitions, classification and selection criteria

EN 13771-2:2017, Compressors and condensing units for refrigeration - Performance testing and test

methods - Part 2: Condensing units"
ISO 817, Refrigerants — Designation and safety classification
3 Terms and definitions

For the purposes of this document, the terms and definitions given in !EN 378-1:2016" and the

following apply.
3.1
condensing unit

combination of one or more compressors, condensers/gas coolers and, where applicable, liquid

receivers and the regularly furnished accessories
!3.2
evaporating temperature

temperature between the evaporating dew point and the evaporator inlet temperature of the

refrigerant at the pressure of the condensing unit inlet, as calculated according to Annex B

Note 1 to entry: For refrigerants without glide the evaporating temperature is equal to the dew point

temperature at the condensing unit inlet pressure."
!3.3"
refrigerating capacity

product of the mass flow of refrigerant through the condensing unit and the difference between the

specific enthalpy of the refrigerant at the condensing unit inlet, the refrigerant being superheated above

the suction dew point temperature to the appropriate value (see Table 3), and the specific enthalpy of

the liquid refrigerant at the condensing unit outlet
!3.4"
!subcooling"

difference between the bubble point temperature of the refrigerant corresponding to the pressure at

the condensing unit outlet and the temperature of the liquid refrigerant at the condensing unit outlet

---------------------- Page: 7 ----------------------
SIST EN 13215:2017+A1:2020
EN 13215:2016+A1:2020 (E)
!3.5"
superheat

difference between the dew point temperature of the refrigerant corresponding to the pressure at the

condensing unit inlet and the temperature of the refrigerant vapour at the condensing unit inlet

!3.6"
power absorbed
power demand to drive the condensing unit
!3.7"
coefficient of performance
COP
refrigerating capacity to the power absorbed
!3.8"
seasonal energy performance ratio
SEPR

reference annual refrigeration demand divided by the annual electrical energy demand

!3.9
glide

difference between dew point temperature and bubble point temperature at a given pressure

[SOURCE: EN 14511-1:2018, 3.46]
3.10
condensing temperature

arithmetic mean temperature between the condensing dew point and bubble point at the compressor

discharge pressure"
4 Symbols and abbreviations
Table 1 — Symbols and abbreviations
Symbol Designation Unit
LT Low evaporating temperature -
MT Medium evaporating temperature -
HT High evaporating temperature -
COP Coefficient of performance -
CR Capacity ratio -
d Duration h
E Annual electrical energy demand kWh
P Power W
q Refrigeration demand ratio -
Q Refrigerating capacity W
SEPR Seasonal energy performance ratio -
t Temperature °C
---------------------- Page: 8 ----------------------
SIST EN 13215:2017+A1:2020
EN 13215:2016+A1:2020 (E)
Table 2 — Indices
Index Designation
LT Low evaporating temperature
MT Medium evaporating temperature
amb ambient
cor corrected
dm demand
low low
A, B, C and D Rating conditions
j bin-number
R rated
5 Parameters for the presentation of performance data

The parameters as shown in Table 3 shall be used for the presentation of the performance data.

Table 3 — Parameters for the presentation of performance data
Parameters refrigerant Suction temperature (°C) or Condensing unit
superheat (K) at the application
condensing unit inlet
Household and similar
Halocarbons and
32 °C
refrigerators/freezers
hydrocarbons including
refrigerant blends
20 °C or 10 K Other applications
R717 Any application using
5 K
ammonia
32 °C Household and similar
R744
10 K Other application using CO2
6 General requirements

The performance data of a condensing unit for refrigeration shall be presented in either tabular or

graphical form as shown in 7.3. Data outside the allowable working range of the condensing unit shall

not be included.

The performance of the condensing unit at the standard reference points in Table 4 shall also be

reported.

To calculate the performance at other suction temperatures/superheat and at other compressor speeds,

correction factors shall be given as shown in Clause 10.

Refrigerants shall be designated in accordance with ISO 817. The source from which the

thermodynamic properties are taken shall be stated.
---------------------- Page: 9 ----------------------
SIST EN 13215:2017+A1:2020
EN 13215:2016+A
...

SLOVENSKI STANDARD
SIST EN 13215:2017+A1:2020
01-oktober-2020
Nadomešča:
SIST EN 13215:2017
Kondenzacijske enote za hladilne naprave - Ocenjevalni pogoji za razvrščanje,
odstopanja in predstavitev podatkov o lastnostih, ki jih navede proizvajalec
(vključuje dopolnilo A1)

Condensing units for refrigeration - Rating conditions, tolerances and presentation of

manufacturer's performance data
Verflüssigungssätze für die Kälteanwendung - Nennbedingungen, Toleranzen und
Darstellung von Leistungsdaten des Herstellers

Unités de condensation pour la réfrigération - Détermination des caractéristiques,

tolérances et présentation des performances du fabricant
Ta slovenski standard je istoveten z: EN 13215:2016+A1:2020
ICS:
27.200 Hladilna tehnologija Refrigerating technology
SIST EN 13215:2017+A1:2020 en,fr,de

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
SIST EN 13215:2017+A1:2020
---------------------- Page: 2 ----------------------
SIST EN 13215:2017+A1:2020
EN 13215:2016+A1
EUROPEAN STANDARD
NORME EUROPÉENNE
August 2020
EUROPÄISCHE NORM
ICS 27.200 Supersedes EN 13215:2016
English Version
Condensing units for refrigeration - Rating conditions,
tolerances and presentation of manufacturer's
performance data

Unités de condensation pour la réfrigération - Verflüssigungssätze für die Kälteanwendung -

Détermination des caractéristiques, tolérances et Nennbedingungen, Toleranzen und Darstellung von

présentation des performances du fabricant Leistungsdaten des Herstellers

This European Standard was approved by CEN on 24 September 2016 and includes Amendment 1 approved by CEN on 5 July

2020.

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, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and

United Kingdom.
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. EN 13215:2016+A1:2020 E

worldwide for CEN national Members.
---------------------- Page: 3 ----------------------
SIST EN 13215:2017+A1:2020
EN 13215:2016+A1:2020 (E)
Contents Page

European foreword ....................................................................................................................................................... 4

1 Scope .................................................................................................................................................................... 5

2 Normative references .................................................................................................................................... 5

3 Terms and definitions ................................................................................................................................... 5

4 Symbols and abbreviations ......................................................................................................................... 6

5 Parameters for the presentation of performance data ..................................................................... 7

6 General requirements ................................................................................................................................... 7

7 Performance data ............................................................................................................................................ 8

7.1 General ................................................................................................................................................................ 8

7.2 Part load performance data ........................................................................................................................ 8

7.3 Tabular or graphical form ........................................................................................................................... 8

7.4 Determination of the power absorbed by the condensing unit ..................................................... 8

7.4.1 Condensing units including the compressor motor ........................................................................... 8

7.4.2 Motors with a specific factory assembled or factory specified means for variable

speed .................................................................................................................................................................... 9

7.4.3 Externally driven compressors without motor .................................................................................... 9

8 Rating conditions ............................................................................................................................................ 9

8.1 General ................................................................................................................................................................ 9

8.2 Standard reference points ........................................................................................................................... 9

8.3 Air cooled condensing units ..................................................................................................................... 10

8.3.1 General ............................................................................................................................................................. 10

8.3.2 Data for SEPR calculation .......................................................................................................................... 10

8.4 Water cooled condensing units ............................................................................................................... 11

9 Tolerances ...................................................................................................................................................... 11

10 Correction factors ........................................................................................................................................ 11

10.1 Superheat ........................................................................................................................................................ 11

10.2 Compressors speed ..................................................................................................................................... 12

Annex A (normative) Calculation of SEPR......................................................................................................... 13

A.1 General ............................................................................................................................................................. 13

A.2 Condensing unit without capacity control .......................................................................................... 13

A.3 Condensing unit with stepwise capacity control .............................................................................. 13

A.4 Calculation of SEPR ...................................................................................................................................... 14

Annex B (normative) Determination of evaporating temperature with refrigerant mixtures .... 18

Annex ZA (informative) Relationship between this European Standard and the eco-design

requirements of Commission Regulation (EU) No 2015/1095 ................................................... 20

Bibliography ................................................................................................................................................................. 21

---------------------- Page: 4 ----------------------
SIST EN 13215:2017+A1:2020
EN 13215:2016+A1:2020 (E)
Tables

Table 1 — Symbols and abbreviations .....................................................................................................................................6

Table 2 — Indices .............................................................................................................................................................................7

Table 3 — Parameters for the presentation of performance data ...............................................................................7

Table 4 — Standard reference points .......................................................................................................................................9

Table 5 — Actual performance in relation to published data ..................................................................................... 11

Table A.1 — Required input for SEPR calculation ............................................................................................................ 14

Table A.2 — Ambient temperatures and duration for SEPR determination ......................................................... 15

Table ZA.1 — Correspondence between this European Standard and Commission Regulation (EU)

No 2015/1095 of 5 May 2015 implementing Directive 2009/125/EC of the European

Parliament and of the Council with regard to ecodesign requirements for professional

refrigerated storage cabinets, blast cabinets, condensing units and process chillers and

Commission’s standardization request M/495 (Ecodesign) ..................................................................... 20

---------------------- Page: 5 ----------------------
SIST EN 13215:2017+A1:2020
EN 13215:2016+A1:2020 (E)
European foreword

This document (EN 13215:2016+A1:2020) 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 February 2021, and conflicting national standards

shall be withdrawn at the latest by February 2021.

Attention is drawn to the possibility that some of the elements of this document may be the subject of

patent rights. CEN shall not be held responsible for identifying any or all such patent rights.

This document includes Amendment 1 approved by CEN on 5 July 2020.
This document supersedes !EN 13215:2016".

The start and finish of text introduced or altered by amendment is indicated in the text by tags !".

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 listed below:

a) part load conditions according to M/495 “Standardisation mandate to CEN, CENELEC and ETSI

under Directive 2009/125/EC relating to harmonised standards in the field of Ecodesign” are taken

into account;
b) inclusion of the calculation of seasonal energy performance ratio (SEPR).

According to the CEN-CENELEC Internal Regulations, the national standards organisations 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, Republic of

North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the

United Kingdom.
---------------------- Page: 6 ----------------------
SIST EN 13215:2017+A1:2020
EN 13215:2016+A1:2020 (E)
1 Scope

This European Standard specifies the rating conditions, tolerances and presentation of manufacturer's

performance data for condensing units for refrigeration with compressors of the positive-displacement

type. These include single stage compressors and single and two stage compressors having an

integrated means of fluid sub cooling. This is required so that a comparison of different condensing

units can be made. The data relate to the refrigerating capacity and power absorbed and include

requirements for part-load performance where applicable.
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 378-1:2016, Refrigerating systems and heat pumps - Safety and environmental requirements - Part

1: Basic requirements, definitions, classification and selection criteria

EN 13771-2:2017, Compressors and condensing units for refrigeration - Performance testing and test

methods - Part 2: Condensing units"
ISO 817, Refrigerants — Designation and safety classification
3 Terms and definitions

For the purposes of this document, the terms and definitions given in !EN 378-1:2016" and the

following apply.
3.1
condensing unit

combination of one or more compressors, condensers/gas coolers and, where applicable, liquid

receivers and the regularly furnished accessories
!3.2
evaporating temperature

temperature between the evaporating dew point and the evaporator inlet temperature of the

refrigerant at the pressure of the condensing unit inlet, as calculated according to Annex B

Note 1 to entry: For refrigerants without glide the evaporating temperature is equal to the dew point

temperature at the condensing unit inlet pressure."
!3.3"
refrigerating capacity

product of the mass flow of refrigerant through the condensing unit and the difference between the

specific enthalpy of the refrigerant at the condensing unit inlet, the refrigerant being superheated above

the suction dew point temperature to the appropriate value (see Table 3), and the specific enthalpy of

the liquid refrigerant at the condensing unit outlet
!3.4"
!subcooling"

difference between the bubble point temperature of the refrigerant corresponding to the pressure at

the condensing unit outlet and the temperature of the liquid refrigerant at the condensing unit outlet

---------------------- Page: 7 ----------------------
SIST EN 13215:2017+A1:2020
EN 13215:2016+A1:2020 (E)
!3.5"
superheat

difference between the dew point temperature of the refrigerant corresponding to the pressure at the

condensing unit inlet and the temperature of the refrigerant vapour at the condensing unit inlet

!3.6"
power absorbed
power demand to drive the condensing unit
!3.7"
coefficient of performance
COP
refrigerating capacity to the power absorbed
!3.8"
seasonal energy performance ratio
SEPR

reference annual refrigeration demand divided by the annual electrical energy demand

!3.9
glide

difference between dew point temperature and bubble point temperature at a given pressure

[SOURCE: EN 14511-1:2018, 3.46]
3.10
condensing temperature

arithmetic mean temperature between the condensing dew point and bubble point at the compressor

discharge pressure"
4 Symbols and abbreviations
Table 1 — Symbols and abbreviations
Symbol Designation Unit
LT Low evaporating temperature -
MT Medium evaporating temperature -
HT High evaporating temperature -
COP Coefficient of performance -
CR Capacity ratio -
d Duration h
E Annual electrical energy demand kWh
P Power W
q Refrigeration demand ratio -
Q Refrigerating capacity W
SEPR Seasonal energy performance ratio -
t Temperature °C
---------------------- Page: 8 ----------------------
SIST EN 13215:2017+A1:2020
EN 13215:2016+A1:2020 (E)
Table 2 — Indices
Index Designation
LT Low evaporating temperature
MT Medium evaporating temperature
amb ambient
cor corrected
dm demand
low low
A, B, C and D Rating conditions
j bin-number
R rated
5 Parameters for the presentation of performance data

The parameters as shown in Table 3 shall be used for the presentation of the performance data.

Table 3 — Parameters for the presentation of performance data
Parameters refrigerant Suction temperature (°C) or Condensing unit
superheat (K) at the application
condensing unit inlet
Household and similar
Halocarbons and
32 °C
refrigerators/freezers
hydrocarbons including
refrigerant blends
20 °C or 10 K Other applications
R717 Any application using
5 K
ammonia
32 °C Household and similar
R744
10 K Other application using CO2
6 General requirements

The performance data of a condensing unit for refrigeration shall be presented in either tabular or

graphical form as shown in 7.3. Data outside the allowable working range of the condensing unit shall

not be included.

The performance of the condensing unit at the standard reference points in Table 4 shall also be

reported.

To calculate the performance at other suction temperatures/superheat and at other compressor speeds,

correction factors shall be given as shown in Clause 10.

Refrigerants shall be designated in accordance with ISO 817. The source from which the

thermodynamic properties are taken shall be stated.
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SIST EN 13215:2017+A1:2020
EN 13215:2016+A
...

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