prEN 14511-1

Air conditioners, liquid chilling packages and heat pumps for space heating and cooling and process chillers, with electrically driven compressors - Part 1: Terms and definitions

This European Standard specifies the terms and definitions for the rating and performance of air conditioners, liquid chilling packages and heat pumps using either air, water or brine as heat transfer media, with electrically driven compressors when used for space heating and/or cooling.
It also specifies the terms and definitions for the rating and performance of process chillers.
This European Standard does not apply to heat pumps for domestic hot water, although certain definitions can be applied to these.
This European Standard applies to:
-   factory-made units that can be ducted,
-   factory-made liquid chilling packages with integral condensers or for use with remote condensers,
-   factory-made units of either fixed capacity or variable capacity by any means, and
-   air-to-air air conditioners which can also evaporate the condensate on the condenser side.
Packaged units, single split and multisplit systems are covered by this standard. Single duct and double duct units are covered by the standard.
In the case of units consisting of several parts, this European Standard applies only to those designed and supplied as a complete package, except for liquid chilling packages with remote condenser.
This European Standard is primarily intended for water and brine chilling packages but can be used for other liquid subject to agreement.
The units having their condenser cooled by air and by the evaporation of external additional water should have their performance in the cooling mode determined in accordance to EN 15218. For those which can also operate in the heating mode, the EN 14511 series applies for the determination of their performance in the heating mode.
NOTE 1   Part load testing of units is dealt with in EN 14825.
NOTE 2   All the symbols given in this text are used regardless of the language.

Luftkonditionierer, Flüssigkeitskühlsätze und Wärmepumpen für die Raumbeheizung und -kühlung und Prozess-Kühler mit elektrisch angetriebenen Verdichtern - Teil 1: Begriffe

Climatiseurs, groupes refroidisseurs de liquide et pompes à chaleur pour le chauffage et le refroidissement des locaux et refroidisseurs industriels avec compresseur entraîné par moteur électrique - Partie 1 : Termes et définitions

Klimatske naprave, enote za hlajenje kapljevine, toplotne črpalke za ogrevanje in hlajenje prostora ter procesne hladilne naprave z električnimi kompresorji - 1. del: Izrazi in definicije

General Information

• Status: Not Published
• ICS: 01.040.27 - Energy and heat transfer engineering (Vocabularies)
• ICS: 01.040.91 - Construction materials and building (Vocabularies)
• ICS: 27.080 - Heat pumps
• ICS: 91.140.30 - Ventilation and air-conditioning systems
• Technical Committee: CEN/TC 113 - Heat pumps and air conditioning units
• Drafting Committee: CEN/TC 113/WG 8 - Revision of existing standards
• Current Stage: 4599 - Dispatch of FV draft to CMC - Finalization for Vote
• Due Date: 16-Nov-2021
• Completion Date: 16-Nov-2021
• Directive: 2016/2281 - Commission Regulation (EU) 2016/2281 of 30 November 2016 implementing Directive 2009/125/EC of the European Parliament and of the Council establishing a framework for the setting of ecodesign requirements for energy-related products, with regard to ecodesign requirements for air heating products, cooling products, high temperature process chillers and fan coil units
• Directive: 206/2012 - Commission Regulation (EU) No 206/2012 of 6 March 2012 implementing Directive 2009/125/EC of the European Parliament and of the Council with regard to ecodesign requirements for air conditioners and comfort fans
• Mandate: M/488 - Mandate to CEN, CENELEC and ETSI in the field of air conditioners and comfort fans
• Mandate: M/560 - [C(2019) 1725 final] Ecodesign requirements for air heating products, cooling products, high temperature process chillers and fan coils in support of Commission Regulation (EU) 2016/2281
• Ref Project: oSIST prEN 14511-1:2021 - Air conditioners, liquid chilling packages and heat pumps for space heating and cooling and process chillers, with electrically driven compressors - Part 1: Terms and definitions

RELATIONS

• Revised: EN 14511-1:2018 - Air conditioners, liquid chilling packages and heat pumps for space heating and cooling and process chillers, with electrically driven compressors - Part 1: Terms and definitions
• Effective Date: 31-Jul-2019

Standards Content (sample)

SLOVENSKI STANDARD
oSIST prEN 14511-1:2021
01-april-2021

Klimatske naprave, enote za hlajenje kapljevine, toplotne črpalke za ogrevanje in

hlajenje prostora ter procesne hladilne naprave z električnimi kompresorji - 1. del:

Izrazi in definicije

Air conditioners, liquid chilling packages and heat pumps for space heating and cooling

and process chillers, with electrically driven compressors - Part 1: Terms and definitions

Luftkonditionierer, Flüssigkeitskühlsätze und Wärmepumpen für die Raumbeheizung und

-kühlung und Prozess-Kühler mit elektrisch angetriebenen Verdichtern - Teil 1: Begriffe

Climatiseurs, groupes refroidisseurs de liquide et pompes à chaleur pour le chauffage et

le refroidissement des locaux et refroidisseurs industriels avec compresseur entraîné par

moteur électrique - Partie 1 : Termes et définitions
Ta slovenski standard je istoveten z: prEN 14511-1
ICS:
01.040.23 Tekočinski sistemi in sestavni Fluid systems and
deli za splošno rabo (Slovarji) components for general use
(Vocabularies)
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 14511-1:2021 en,fr,de

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

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oSIST prEN 14511-1:2021
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oSIST prEN 14511-1:2021
DRAFT
EUROPEAN STANDARD
prEN 14511-1
NORME EUROPÉENNE
EUROPÄISCHE NORM
March 2021
ICS Will supersede EN 14511-1:2018
English Version
Air conditioners, liquid chilling packages and heat pumps
for space heating and cooling and process chillers, with
electrically driven compressors - Part 1: Terms and
definitions

Climatiseurs, groupes refroidisseurs de liquide et Luftkonditionierer, Flüssigkeitskühlsätze und

pompes à chaleur pour le chauffage et le Wärmepumpen für die Raumbeheizung und -kühlung

refroidissement des locaux et refroidisseurs industriels und Prozess-Kühler mit elektrisch angetriebenen

avec compresseur entraîné par moteur électrique - Verdichtern - Teil 1: Begriffe
Partie 1 : Termes et définitions

This 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

© 2021 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 14511-1:2021 E

worldwide for CEN national Members.
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oSIST prEN 14511-1:2021
prEN 14511-1:2021 (E)
Contents

European foreword ....................................................................................................................................................... 3

1 Scope .................................................................................................................................................................... 4

2 Normative references .................................................................................................................................... 4

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

4 Symbols, abbreviated terms and units ................................................................................................. 13

5 Denomination ................................................................................................................................................ 14

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oSIST prEN 14511-1:2021
prEN 14511-1:2021 (E)
European foreword

This document (prEN 14511-1:2021) has been prepared by Technical Committee CEN/TC 113 “Heat

pumps and air conditioning units”, the secretariat of which is held by UNE.
This document is currently submitted to the Enquiry.
This document will supersede EN 14511-1:2018.
This document has been 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;

— the Commission Regulation (EU) n° 626/2011 supplementing Directive 2010/30/EU with regard to

energy labelling for air conditioners;

— the Commission Regulation (EU) No 813/2013 implementing Directive 2009/125/EC with regard to

ecodesign requirements for air-to-water and water-to-water heat pump space heaters;

— the Commission Regulation (EU) n° 811/2013 supplementing Directive 2010/30/EU with regard to

energy labelling for air-to-water and water-to-water heat pump space heaters;

— the Commission Regulation (EU) n° 2015/1095 implementing Directive 2009/125/EC of the

European Parliament and of the Council with regard to ecodesign requirements for process chillers;

— Commission Regulation (EU) 2016/2281 implementing Directive 2009/125/EC of the European

Parliament and of the Council with regard to ecodesign requirements for air heating products,

cooling products, high temperature process chillers and fan coil units.

EN 14511, Air conditioners, liquid chilling packages and heat pumps for space heating and cooling and

process chillers, with electrically driven compressors currently comprises the following parts:

— Part 1: Terms and definitions
— Part 2: Test conditions
— Part 3: Test methods
— Part 4: Requirements
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oSIST prEN 14511-1:2021
prEN 14511-1:2021 (E)
1 Scope

This document specifies the terms and definitions for the rating and performance of air conditioners,

liquid chilling packages and heat pumps using either air, water or brine as heat transfer media, with

electrically driven compressors when used for space heating and/or cooling.

It also specifies the terms and definitions for the rating and performance of process chillers.

This document does not apply to heat pumps for domestic hot water, although certain definitions can be

applied to these.
This document applies to:
— factory-made units that can be ducted,

— factory-made liquid chilling packages with integral condensers or for use with remote condensers,

— factory-made units of either fixed capacity or variable capacity by any means, and

— air-to-air air conditioners which can also evaporate the condensate on the condenser side.

Packaged units, single split and multisplit systems are covered by this document. Single duct and double

duct units are covered by the document.

In the case of units consisting of several parts, this document applies only to those designed and supplied

as a complete package, except for liquid chilling packages with remote condenser.

This document is primarily intended for water and brine chilling packages but can be used for other liquid

subject to agreement.

The units having their condenser cooled by air and by the evaporation of external additional water will

have their performance in the cooling mode determined in accordance to EN 15218. For those which can

also operate in the heating mode, the EN 14511 series applies for the determination of their performance

in the heating mode.
NOTE 1 Part load testing of units is dealt with in EN 14825.
NOTE 2 All the symbols given in this text are used regardless of the language.
2 Normative references
There are no normative references in this document.
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oSIST prEN 14511-1:2021
prEN 14511-1:2021 (E)
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.

ISO and IEC maintain terminological databases for use in standardization at the following addresses:

— IEC Electropedia: available at http://www.electropedia.org/
— ISO Online browsing platform: available at http://www.iso.org/obp
3.1
air conditioner

device capable of cooling or heating, or both, indoor air, using a vapour compression cycle driven by an

electric compressor, including air conditioners that provide additional functionalities such as

dehumidification, air purification, ventilation or supplemental air heating by means of electric resistance

heating, as well as appliances that may use water (either condensate water that is formed onthe

evaporator side or externally added water) for evaporation on the condenser, provided that the device is

also able to function without the use of additional water, using air only

Note 1 to entry: Appliances using additional external water are rated according to EN 15218.

3.2
heat pump

encased assembly or assemblies designed as a unit, using a vapour compression cycle driven by an

electric compressor, to provide delivery of heat

Note 1 to entry: It can have means for cooling, circulating, cleaning and dehumidifying the air. The cooling is by

means of reversing the refrigerating cycle.

Note 2 to entry: Also known as a reverse cycle air conditioner, when cooling and heating air.

3.3
comfort air conditioner or heat pump

air conditioner or heat pump to satisfy the comfort requirements of the occupants of the air conditioned

room
3.4
close control air conditioner

air conditioner to satisfy the requirements of the process carried out in the air conditioned room

3.5
control cabinet air conditioner
air conditioner to satisfy the requirements of the control cabinet
3.6
packaged unit

factory assembly of components of refrigeration system fixed on a common mounting to form a discrete

unit
3.7
single split unit

factory assembly of components of refrigeration system fixed on two mountings to form a discrete

matched functional unit
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oSIST prEN 14511-1:2021
prEN 14511-1:2021 (E)
3.8
single-duct air conditioner

air conditioner in which, during cooling or heating, the condenser (or evaporator) intake air is introduced

from the space containing the unit and discharged outside this space
3.9
double-duct air conditioner

air conditioner in which, during cooling or heating, the condenser (or evaporator) intake air is introduced

from the outdoor environment to the unit by a duct and rejected to the outdoor environment by a second

duct, and which is placed wholly inside the space to be conditioned, near a wall
3.10
liquid chilling package

factory-made unit designed to cool liquid, using an evaporator, a refrigerant compressor, an integral or

remote condenser and appropriate controls

Note 1 to entry: It may have means for heating which can be reversing the refrigerating cycle, such as a heat

pump.
3.11
comfort chiller

liquid chilling package whose indoor heat exchanger extracts heat from a water-based cooling system

designed to operate at leaving chilled water temperatures greater than or equal to 2° C

3.12
process chiller

factory-made product integrating at least one compressor and one evaporator, capable of cooling down

and continuously maintaining the temperature of a liquid in order to provide cooling to a refrigerated

appliance or to a process cooling system

Note 1 to entry: It may or may not integrate the condenser, the coolant circuit hardware and other ancillary

equipment.
3.13
low temperature process chiller

process chiller that is capable of delivering its rated cooling capacity at an indoor heat exchanger outlet

temperature of −25 °C, at standard rating conditions
3.14
medium temperature process chiller

process chiller that is capable of delivering its rated cooling capacity at an indoor heat exchanger outlet

temperature of −8 °C, at standard rating conditions
3.15
high temperature process chiller

process chiller that is capable of delivering its rated cooling capacity at an outlet chilled water

temperature of 7 °C
3.16
heat recovery liquid chilling package

factory-made liquid chilling package designed for the purpose of chilling liquid and recovering of heat

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oSIST prEN 14511-1:2021
prEN 14511-1:2021 (E)
3.17
heat recovery

recovery of heat rejected by the unit whose primary control is in the cooling mode by means of either an

additional heat exchanger (e.g. a liquid chiller with an additional condenser) or by transferring the heat

through the refrigerating system for use to unit whose primary control remains in the heating mode (e.g.

variable refrigerant flow)
3.18
indoor heat exchanger

heat exchanger which is designed to transfer heat between the refrigerant and the indoor heat transfer

medium

Note 1 to entry: In the case of an air conditioner or heat pump operating in the cooling mode, this is the

evaporator. In the case of an air conditioner or heat pump operating in the heating mode, this is the condenser.

3.19
outdoor heat exchanger

heat exchanger which is designed to transfer heat between any available heat source and the refrigerant

Note 1 to entry: In the case of an air conditioner or heat pump operating in the cooling mode, this is the

condenser. In the case of an air conditioner or heat pump operating in the heating mode, this is the evaporator.

3.20
heat recovery heat exchanger

heat exchanger assembly which is designed to transfer heat to the heat recovery medium

3.21
heat transfer medium
medium (water, air...) used for the transfer of the heat without change of state

EXAMPLES Cooled liquid circulating in the evaporator; cooling medium circulating in the condenser; heat

recovery medium circulating in the heat recovery heat exchanger.
3.22
exhaust air
air from the air conditioned space entering the outdoor heat exchanger
3.23
recycled air
air from the air conditioned space entering the indoor heat exchanger
3.24
outdoor air
air from the outdoor environment
3.25
water loop

closed circuit of water maintained within a temperature range on which the units in cooling mode reject

heat and the units in heating mode take heat
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oSIST prEN 14511-1:2021
prEN 14511-1:2021 (E)
3.26
cooling capacity

heat given off from the heat transfer medium to the unit per unit of time, corrected from any fan or pump

heat where applicable
Note 1 to entry: Expressed in kW.

Note 2 to entry: For air to air, water/brine to air units, cooling capacity is the total cooling capacity i.e. sum of

latent and sensible cooling capacities.
3.27
latent cooling capacity
capacity of the unit for removing latent heat from the evaporator intake air
Note 1 to entry: Expressed in kW.
3.28
sensible cooling capacity
capacity of the unit for removing sensible heat from the evaporator intake air
Note 1 to entry: Expressed in kW.
3.29
heating capacity

heat given off by the unit to the heat transfer medium per unit of time, corrected from

...