EN 14511-1 to 4

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Belgische norm

Luchtbehandelingsapparatuur, koeleenheden met vloeistof en

warmtepompen met elektrisch aangedreven compressoren voor

ruimteverwarming en -koeling - Deel 1: Termen

ruimteverwarming en -koeling - Deel 1: Termen en definities

en definities

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

électrique pour le chauffage et la réfrigération des locaux - Partie 1: Termes et définitions

2e uitg., mei 2008 2e uitg., mei 2008

Normklasse: D 40

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

heating and cooling - Part 1: Terms and definitions

Toelating tot publicatie: 29 januari 2008 Toelating tot publicatie: 29 januari 2008

Vervangt NBN EN 14511-1 (2004). Vervangt NBN EN 14511-1 (2004).

Deze Europese norm EN 14511-1:2008 heeft de status van een Belgische norm. Deze Europese norm EN 14511-1:2008 heeft de status van een Belgische norm.

Deze Europese norm bestaat in drie officiële versies (Duits, Engels, Frans). Deze Europese norm bestaat in drie officiële versies (Duits, Engels, Frans).

Bureau

Bureau voor voor Normalisatie Normalisatie Brabançonnelaan Brabançonnelaan 29 29 B-1000 B-1000 Brussel Brussel BelgiëBelgië Tel:

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norme belge

enregistrée

NBN EN 14511-1

Climatiseurs, groupes refroidisseurs de liquide et pompes à

Climatiseurs, groupes refroidisseurs de liquide et pompes à chaleur

chaleur

avec compresseur entraîné par moteur électrique pour le chauffage et la

réfrigération des locaux - Partie 1: Termes et définitions

Luchtbehandelingsapparatuur, koeleenheden met vloeistof en warmtepompen met elektrisch aangedreven Luchtbehandelingsapparatuur, koeleenheden met vloeistof en warmtepompen met elektrisch aangedreven compressoren voor ruimteverwarming en -koeling - Deel 1: Termen en definities

compressoren voor ruimteverwarming en -koeling - Deel 1: Termen en definities

2e éd., mai 2008 2e éd., mai 2008

Indice de classement: D 40

Autorisation de publication: 29 janvier 2008 Autorisation de publication: 29 janvier 2008

Remplace NBN EN 14511-1 (2004). Remplace NBN EN 14511-1 (2004).

La présente norme européenne EN 14511-1:2008 a le statut d'une norme belge. La présente norme européenne EN 14511-1:2008 a le statut d'une norme belge.

La présente norme européenne existe en trois versions officielles (allemand, anglais, français). La présente norme européenne existe en trois versions officielles (allemand, anglais, français).

Bureau

(3)

enregistrée

Climatiseurs, groupes refroidisseurs de liquide et pompes à

Climatiseurs, groupes refroidisseurs de liquide et pompes à chaleur

chaleur

avec compresseur entraîné par moteur électrique pour le chauffage et la

réfrigération des locaux - Partie 1: Termes et définitions

Luchtbehandelingsapparatuur, koeleenheden met vloeistof en warmtepompen met elektrisch aangedreven Luchtbehandelingsapparatuur, koeleenheden met vloeistof en warmtepompen met elektrisch aangedreven compressoren voor ruimteverwarming en -koeling - Deel 1: Termen en definities

compressoren voor ruimteverwarming en -koeling - Deel 1: Termen en definities

2e éd., mai 2008 2e éd., mai 2008

Indice de classement: D 40

Autorisation de publication: 29 janvier 2008 Autorisation de publication: 29 janvier 2008

Remplace NBN EN 14511-1 (2004). Remplace NBN EN 14511-1 (2004).

La présente norme européenne EN 14511-1:2008 a le statut d'une norme belge. La présente norme européenne EN 14511-1:2008 a le statut d'une norme belge.

La présente norme européenne existe en trois versions officielles (allemand, anglais, français). La présente norme européenne existe en trois versions officielles (allemand, anglais, français).

Bureau

Bureau de de Normalisation Normalisation - - Avenue Avenue de de la la Brabançonne Brabançonne 29 29 - - 1000 1000 Bruxelles Bruxelles - - BelgiqueBelgique Tél:

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NORME EUROPÉENNE

EUROPÄISCHE NORM

_{November 2007}

IIC

CS

S

2233..112200;

;

0011..004400..2233

S

Suuppeerrsseeddees

s

E

EN

N

1144551111--11::22000044

English Version

Air conditioners, liquid chilling packages and heat pumps with

electrically driven compressors for space heating and cooling

--Part 1: Terms and definitions

Part 1: Terms and definitions

Climatiseurs, groupes refroidisseurs de liquide et pompes Climatiseurs, groupes refroidisseurs de liquide et pompes àà

chaleur avec compresseur entraîné par moteur

chaleur avec compresseur entraîné par moteur électriqueélectrique pour le chauffage et la réfrigération des locaux - Partie 1: pour le chauffage et la réfrigération des locaux - Partie 1:

Termes et définitions Termes et définitions

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

This European Standard was approved by CEN

This European Standard was approved by CEN on 13 October 2007.on 13 October 2007. CEN members are bound

CEN members are bound to comply with the CEN/CENELEC to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this Internal Regulations which stipulate the conditions for giving this EuropeanEuropean Standard the status of a

Standard the status of a national standard without any alteration. Up-to-date national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationallists and bibliographical references concerning such national standards may be obtained on application to the CEN Management Centre or to any CEN member.

standards may be obtained on application to the CEN Management Centre or to any CEN member. This European Standard exists in three

This European Standard exists in three official versions (English, French, German). A version in official versions (English, French, German). A version in any other language made by any other language made by translationtranslation under the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as the under the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as the official versions.

official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta,

France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.

Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.

EUROPEAN COMMITTEE FOR STANDARDIZATION EUROPEAN COMMITTEE FOR STANDARDIZATION C O M I T É E U R O P É E N D E N O R M A L I S A T I O N C O M I T É E U R O P É E N D E N O R M A L I S A T I O N E U R O P Ä I S C H E S K O M I T E E F Ü R N O R M U N G E U R O P Ä I S C H E S K O M I T E E F Ü R N O R M U N G

Management

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Foreword

This document (EN 14511-1:2007) 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 May 2008, and conflicting national standards shall be withdrawn at the latest by May 2008.

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 supersedes EN 14511-1:2004.

The revised standard takes into account double duct units and multisplit systems.

EN 14511 comprises the following parts under the general title " Air conditioners, liquid chilling packages and heat pumps with electrically driven compressors for space heating and cooling “:

- Part 1: Terms and definitions - Part 2: Test conditions

- Part 3: Test methods - Part 4: Requirements

According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom.

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1 Scope

This part of EN 14511 specifies the terms and definitions for the rating and performance of air and water cooled air conditioners, liquid chilling packages, air-to-air, water-to-air, air-to-water and water-to-water heat pumps with electrically driven compressors when used for space heating and/or cooling. This European Standard does not specifically apply to heat pumps for sanitary hot water, although certain definitions can be applied to these.

This European Standard applies to factory-made units that can be ducted.

This standard applies to factory-made liquid chilling packages with integral condensers or for use with remote condensers.

This standard applies to factory-made units of either fixed capacity or variable capacity by any means.

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 standard applies only to those designed and supplied as a complete package, except for liquid chilling packages with remote condenser.

This standard is primarily intended for water and brine chilling packages but can be used for other liquid subject to agreement.

This standard applies to air-to-air air conditioners which evaporate the condensate on the condenser side. The units having their condenser cooled by air and by the evaporation of external additional water are not covered by this standard.

This standard does not apply to units using transcritical cycles, e.g. with CO2 as refrigerant.

Installations used for heating and/or cooling of industrial processes are not within the scope of this standard.

NOTE 1 Part load testing of units is dealt with in CEN/TS 14825.

NOTE 2 All the symbols given in this text should be used regardless of the language used.

2 Terms and definitions

For the purposes of this document, the following terms and definitions apply. 2.1

air conditioner

encased assembly or assemblies designed as a unit to provide delivery of conditioned air to an enclosed space (room for instance) or zone. It includes an electrically operated refrigeration system for cooling and possibly dehumidifying the air.

It can have means for heating, circulating, cleaning and humidifying the air. If the unit provides heating by reversing the refrigerating cycle then it is a heat pump

2.2

heat pump

encased assembly or assemblies designed as a unit to provide delivery of heat. It includes an electrically operated refrigeration system for heating.

It can have means for cooling, circulating, cleaning and dehumidifying the air. The cooling is by means of reversing the refrigerating cycle

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2.3

comfort air conditioner or heat pump

air conditioner or heat pump to satisfy the requirements of the occupants of the air conditioned room 2.4

close control air conditioner

air conditioner to satisfy the requirements of the process carried out in the air conditioned room 2.5

control cabinet air conditioner

air conditioner to satisfy the requirements of the control cabinet 2.6

packaged unit

factory assembly of components of refrigeration system fixed on a common mounting to form a discrete unit 2.7

single split unit

factory assembly of components of refrigeration system fixed on two mountings or more to form a discrete matched functional unit

2.8

single-duct air conditioner

air conditioner for spot cooling in which the condenser intake air is introduced from the space containing the unit and discharged outside this space

2.9

double-duct air conditioner

air conditioner placed in the conditioned space near a wall, in which the condenser intake air is introduced from the outdoor environment by a small duct and the condenser discharge air is rejected to the outdoor environment by a second small duct

2.10

liquid chilling package

factory-made unit designed to cool liquid, using an evaporator, a refrigerant compressor, an integral or remote condenser and appropriate controls.

It may have means for heating which can be reversing the refrigerating cycle, like a heat pump 2.11

heat recovery liquid chilling package

factory-made liquid chilling package designed for the purpose of chilling liquid and recovering of heat 2.12

heat recovery

recovery of heat rejected by the unit(s) 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(s) whose primary control remains in the heating mode (e.g. variable refrigerant flow)

2.13

indoor heat exchanger

heat exchanger which is designed to transfer heat to the indoor part of the building or to the indoor hot water supplies or to remove heat from these

NOTE 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.

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2.14

outdoor heat exchanger

heat exchanger which is designed to remove heat from the outdoor ambient environment, or any other available heat source, or to transfer heat to it

NOTE 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 heat pump operating in the heating mode, this is the evaporator.

2.15

heat recovery heat exchanger

heat exchanger assembly which is designed to transfer heat to the heat recovery medium 2.16

heat transfer medium

any 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 e xchanger.

2.17

outside air

air from the outdoor environment entering the outdoor heat exchanger 2.18

exhaust air

air from the air conditioned space entering the outdoor heat exchanger 2.19

recycled air

air from the air conditioned space entering the indoor heat exchanger 2.20

outdoor air

air from the outdoor environment entering the indoor heat exchanger 2.21

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

2.22

total cooling capacity P _C

heat given off from the heat transfer medium to the unit per unit of time, expressed in Watt 2.23

latent cooling capacity P L

capacity of the unit for removing latent heat from the evaporator intake air, expressed in Watt 2.24

sensible cooling capacity P S

capacity of the unit for removing sensible heat from the evaporator intake air, expressed in Watt 2.25

heating capacity P H

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NOTE If heat is removed from the indoor heat exchanger for defrosting, it is taken into account.

2.26

heat rejection capacity

heat removed by the heat transfer medium of the condenser per unit of time, expressed in Watt

NOTE This applies only to heat recovery liquid chilling packages.

2.27

heat recovery capacity

heat removed by the heat transfer medium of the heat recovery heat exchanger, per unit of time, expressed in Watt

NOTE This applies only to heat recovery liquid chilling packages.

2.28

total power input P T

power input of all components of the unit as delivered, expressed in Watt 2.29

effective power input P E

average electrical power input of the unit within the defined interval of time obtained from:

 power input for operation of the compressor and any power input for defrosting;  power input for all control and safety devices of the unit; and

 proportional power input of the conveying devices (e.g. fans, pumps) for ensuring the transport of the heat

transfer media inside the unit. It is expressed in Watt

2.30

energy efficiency ratio EER

ratio of the total cooling capacity to the effective power input of the unit, expressed in Watt/Watt 2.31

sensible heat ratio SHR

ratio of the sensible cooling capacity to the total cooling capacity, expressed in Watt/Watt 2.32

coefficient of performance COP

ratio of the heating capacity to the effective power input of the unit, expressed in Watt/Watt 2.33

operating range

range indicated by the manufacturer and limited by the upper and lower limits of use (e.g. temperatures, air humidity, voltage) within which the unit is deemed to be fit for use and has the characteristics published by the manufacturer

2.34

rating conditions

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 heating capacity, power input, COP in heating mode;  cooling capacity, power input, EER , SHR in cooling mode.

2.35

defrost mode

state of the unit in the heating mode where the operation is modified or reversed to defrost the outdoor heat exchanger

2.36

defrost period

time for which the unit is in the defrost mode 2.37

operating cycle with defrost

cycle consisting of a heating period and a defrost period, from defrost termination to defrost termination 2.38

temperature of saturated vapour at the discharge of the compressor

temperature of saturated vapour/bubble point of the refrigerant corresponding to the discharge pressure of the compressor, measured at the compressor/piping connection

2.39

temperature of the liquid refrigerant

temperature of the refrigerant measured at the inlet of the expansion device 2.40

glide

difference between dew point temperature and bubble point temperature at a given pressure 2.41

brine

heat transfer medium that has a freezing point depressed relative to water 2.42

sound power level LW

ten times the logarithm to the base 10 of the ratio of the given sound power to the reference sound power expressed in decibels. The reference sound power is 1 pW (10-12 W)

2.43

standard rating condition

mandatory condition that is used for marking and for comparison or certification purposes 2.44

application rating condition

rating condition which is mandatory if it falls within the operating range of the unit. Results based on application rating conditions are published by the manufacturer or supplier

2.45

basic multi-split system

split system incorporating a single refrigerant circuit, with one or more compressors, multiple indoor units designed for individual operation and one outdoor unit. The system has no more than two steps of control by either two compressors or by compressor unloading and is capable of operating either as an air-conditioner or a heat pump. A system having a variable speed compressor where a fixed combination of indoor units is specified by the manufacturer is also considered as a basic multi-split system

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2.46

multiple circuit multi-split system

split system incorporating multiple refrigerant circuits, two or more single speed compressors, multiple indoor units and an integrated heat exchanger in a single outdoor unit and is capable of operating either as an air conditioner or a heat pump

2.47

modular multi-split system

split system air conditioner or heat pump incorporating a single refrigerant circuit, at least one variable speed compressor or an alternative compressor combination for varying the capacity of the system by three or more steps, multiple indoor units, each of which can be individually controlled, one or more outdoor units and is capable of operating either as an air conditioner or a heat pump

2.48

modular heat recovery multi-split system

split system air conditioner or heat pump incorporating a single refrigerant circuit, at least one variable-speed compressor or an alternate compressor combination for varying the capacity of the system by three or more steps, multiple indoor units, each capable of being individually controlled and one or more outdoor units. This system is capable of operating as a heat pump where recovered heat from the indoor units operating in the cooling mode can be transferred to one or more units operating in the heating mode

NOTE This may be achieved by a gas/liquid separator or a third line in the refrigeration circuit.

2.49

rated capacity

capacity measured in the standard rating conditions 2.50

system capacity

capacity of the system when all outdoor and indoor units are operating in the same mode 2.51

system reduced capacity

capacity of the system when some of the indoor units are disconnected 2.52

system capacity ratio

ratio of the total stated cooling (heating) capacity of all operating indoor units to the stated cooling (heating) capacity of the outdoor unit at the rating conditions

2.53

heat recovery efficiency HRE

ratio of the total capacity of the system (heating plus cooling capacity) to the effective power input when operating in the heat recovery mode

2.54

standard air

dry air at 20 °C and at standard barometric pressure of 101,325 kPa, having a mass density of 1,204 kg/m³

3 Classification

The units are denominated in such a way that the heat transfer medium for the outdoor heat exchanger is indicated first, followed by the heat transfer medium for the indoor heat exchanger (see Table 1).

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Table 1 — Most common types of units Heat transfer medium

Outdoor heat exchanger Indoor heat exchanger Classification

Air Air Air/air heat pump or air cooled air conditioner

Water Air Water/air heat pump or water cooled air conditioner

Brine Air Brine/air heat pump or brine cooled air conditioner

Air Water Air/water heat pump or air cooled liquid chilling package

Water Water Water/water heat pump or water cooled liquid chilling package

Brine Water Brine/water heat pump or brine cooled chilling package

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Index

2 2.1 ... ... 4, 5, 6 2.10 ... ... 5 2.11 ... ... 5 2.12 ... ... 5 2.13 ... ... 6 2.14 ... ... 6 2.15 ... ... 6 2.16 ... ... 6 2.17 ... ... 6 2.18 ... ... 6 2.2 ... ... 6, 7 2.20 ... ... 6 2.21 ... ... 6 2.23 ... ... 6 2.24 ... ... 6 2.25 ... ... 7 2.26 ... ... 7 2.27 ... ... 7 2.28 ... ... 7 2.3 ... ... 5, 7, 8 2.30 ... ... 7 2.31 ... ... 7 2.33 ... ... 7 2.34 ... ... 8 2.35 ... ... 8 2.36 ... ... 8 2.37 ... ... 8 2.38 ... ... 8 2.4 ... ... 5, 8, 9 2.40 ... ... 8 2.41 ... ... 8 2.42 ... ... 8 2.43 ... ... 8 2.44 ... ... 8 2.45 ... ... 9 2.46 ... ... 9 2.47 ... ... 9 2.48 ... ... 9 2.5 ... ... 5, 9 2.50 ... ... 9 2.51 ... ... 9 2.53 ... ... 9 2.6 ... ... 5 2.7 ... ... 5 2.8 ... ... 5 2.9 ... ... 5 A air conditioner ... 4, 5, 6, 9, 10 application rating condition... 8

application rating conditions ... 8

B basic multi-split system ... 8

brine ... 4, 8, 10 C close control air conditioner...5

coefficient of performance ... 7

comfort air conditioner or heat pump...5

control cabinet air conditioner...5

D defrost mode...8

defrost period ... ... 8

E effective power input...7, 9 energy efficiency ratio...7

exhaust air ... ... 6 G glide...8 H heat pump... ... 4, 5, 6, 8, 9, 10 heat recovery ... . 5, 6, 7, 9 heat recovery capacity...7

heat recovery efficiency ... 9

heat recovery heat exchanger ... 6, 7 heat recovery liquid chilling package... 5, 7 heat rejection capacity...7

heat transfer medium... 6, 7, 8, 9 I indoor heat exchanger ... 5, 6, 7, 9 L latent cooling capacity...6

liquid chilling package ... 4, 5, 10 M modular heat recovery multi-split system ... 9

modular multi-split system...9

multiple circuit multi-split system...9

O operating cycle with defrost ... 8

operating range...7, 8 outdoor air ... ... 6

outdoor heat exchanger ... 6, 8, 9 outside air...6

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R rated capacity...9 rating condition...8 rating conditions ... 7, 9 recycled air ... ...6 S sensible cooling capacity ...6, 7 sensible heat ratio ... 7

single split unit ...5

single-duct air conditioner ...5

sound power level ...8

standard air ... ...9

standard rating condition ...8, 9 system capacity... 9

system capacity ratio ... 9

system reduced capacity ... 9

T temperature of saturated vapour at the discharge of the compressor... 8

temperature of the liquid refrigerant... 8

the refrigerating cycle, like a heat pump... 5

total cooling capacity... 6, 7 total power input... 7

W water loop ... ... 6

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Bibliography

[1] CEN/TS 14825, Air conditioners, liquid chilling packages and heat pumps with electrically driven compressors for space heating and cooling – Testing and rating at part load conditions

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Belgische norm

Luchtbehandelingsapparatuur, koeleenheden met vloeistof en

warmtepompen met elektrisch aangedreven compressoren voor

ruimteverwarming en -koeling - Deel 2: Beproevingsomstandigheden

Climatiseurs, groupes refroidisseurs de liquide et pompes à chaleur avec compresseur entraîné par moteur électrique pour le chauffage et la réfrigération des locaux - Partie 2: Conditions d'essai

2e uitg., mei 2008

Normklasse: D 40

Air conditioners, liquid chilling packages and heat pumps with electrically driven compressors for space heating and cooling - Part 2: Test conditions

Toelating tot publicatie: 29 januari 2008

Vervangt NBN EN 14511-2 (2004).

Deze Europese norm EN 14511-2:2008 heeft de status van een Belgische norm.

Deze Europese norm bestaat in drie officiële versies (Duits, Engels, Frans).

Bureau voor Normalisatie Brabançonnelaan 29 B-1000 Brussel België

(18)

norme belge

enregistrée

NBN EN 14511-2

Climatiseurs, groupes refroidisseurs de liquide et pompes à chaleur

avec compresseur entraîné par moteur électrique pour le chauffage et la

réfrigération des locaux - Partie 2: Conditions d'essai

Luchtbehandelingsapparatuur, koeleenheden met vloeistof en warmtepompen met elektrisch aangedreven compressoren voor ruimteverwarming en -koeling - Deel 2: Beproevingsomstandigheden

2e éd., mai 2008

Indice de classement: D 40

Air conditioners, liquid chilling packages and heat pumps with electrically driven compressors for space heating and cooling - Part 2: Test conditions

Autorisation de publication: 29 janvier 2008

Remplace NBN EN 14511-2 (2004).

La présente norme européenne EN 14511-2:2008 a le statut d'une norme belge.

La présente norme européenne existe en trois versions officielles (allemand, anglais, français).

(19)

EUROPÄISCHE NORM

_{November 2007}

ICS

23.120 Supersedes

EN

14511-2:2004

English Version

Air conditioners, liquid chilling packages and heat pumps with

electrically driven compressors for space heating and cooling

-Part 2: Test conditions

Climatiseurs, groupes refroidisseurs de liquide et pompes à chaleur avec compresseur entraîné par moteur électrique pour le chauffage et la réfrigération des locaux - Partie 2:

Conditions d'essai

Luftkonditionierer, Flüssigkeitskühlsätze und Wärmepumpen mit elektrisch angetriebenen Verdichtern

für die Raumbeheizung und Kühlung - Teil 2: Prüfbedingungen

This European Standard was approved by CEN on 12 October 2007.

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 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 Management Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.

EUROPEAN COMMITTEE FOR STANDARDIZATION C O M I T É E U R O P É E N D E N O R M A L I S A T I O N E U R O P Ä I S C H E S K O M I T E E F Ü R N O R M U N G

Management Centre: rue de Stassart, 36 B-1050 Brussels

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Foreword

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1 Scope

This part of EN 14511 specifies the test conditions for the rating of air and water cooled air conditioners, liquid chilling packages, air-to-air, water-to-air, air-to-water and water-to-water heat pumps with electrically driven compressors when used for space heating and/or cooling. It also specifies test conditions for heat recovery operation of multisplit systems.

In the case of units consisting of several parts, the standard applies only to those designed and supplied as a complete package, except for liquid chilling packages with remote condenser.

NOTE Part load testing of units is dealt with in CEN/TS 14825.

2 Normative references

The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.

EN 14511-1:2007, Air conditioners, liquid chilling packages and heat pumps with electrically driven compressors for space heating and cooling - Part 1: Terms and definitions

EN 14511-3:2007, Air conditioners, liquid chilling packages and heat pumps with electrically driven compressors for space heating and cooling - Part 3: Test methods

EN 14511-4:2007, Air conditioners, liquid chilling packages and heat pumps with electrically driven compressors for space heating and cooling - Part 4: Requirements

3 Terms and definitions

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4 Test conditions

4.1 Environmental conditions and electrical power supply requirements

The tests shall be carried out under the environmental conditions specified in Table 1 or Table 2 depending on the location of the unit.

For all units, electrical power voltage and frequency shall be given by the manufacturer.

Table 1 — Environmental conditions for units designed for installation indoors Type Measured quantities Rating test Water-to-water units Dry bulb temperature 15°C to 30°C

Air-to-water units with duct connection on

the air inlet and outlet side Dry bulb temperature 15°C to 30°C Air-to-water units without duct connection

on the air inlet side

Dry bulb temperature Wet bulb temperature

As inlet temperatures see Table 9 or Table 10

Water-to-air units with duct connection

on the air inlet and outlet side Dry bulb temperature 15°C to 30°C Water-to-air units without duct connection

on the air inlet and outlet side

Air-to-air units with duct connection

on the indoor air inlet and outlet side Dry bulb temperature 15°C to 30°C Air-to-air units without duct connection

on the indoor air inlet and outlet side

Table 2 — Environmental conditions for units designed for installation outdoors Type Measured quantities Rating test Air-to-water units Dry bulb temperature

Wet bulb temperature

As inlet temperatures see Table 9 and Table 10 Water-to-air units without duct connection

on the air inlet side

As inlet temperatures see Table 5 and Table 6 Air-to-air units with duct connection on the

indoor air inlet and outlet side

As inlet temperatures see Table 3 and Table 4

4.2 Rating conditions

For the rating tests, the appropriate test conditions shall be applied in accordance with:

 Table 3 for air-to-air units in heating mode;

 Table 4 for air-to-air units in cooling mode;

(24)

 Table 6 for water-to-air units in cooling mode;

 Table 7 for water-to-water units in heating mode;

 Table 8 for water-to-water units in cooling mode;

 Table 9 for air-to-water in heating mode;

 Table 10 for air-to-water in cooling mode;

 Table 11 for liquid chilling packages with remote condenser;

 Table 12 for liquid chilling packages for heat recovery condenser;

 Table 13 for basic, multiple circuit and modular air-cooled multisplit systems in the heating mode;

 Table 14 for basic, multiple circuit and modular air-cooled multisplit systems in the cooling mode;

 Table 15 for modular heat recovery air-cooled multisplit systems;

 Table 16 for basic, multiple circuit and modular water-cooled multisplit systems in the heating mode;

 Table 17 for basic, multiple circuit and modular water-cooled multisplit systems in the cooling mode. For units with brine, the test shall be carried out with the brine specified by the manufacturer, see 7.2.1 of EN 14511-4:2007.

Table 3 — Air-to air heat pumps - Heating mode

Outdoor heat exchanger Indoor heat exchanger Inlet dry bulb

temperature °C

Inlet wet bulb temperature

°C

Inlet dry bulb temperature

°C

°C Outside air / recycled air

(e.g. window, double duct, split units)

7 6 20 15 max

Exhaust air / recycled air 20 12 20 12 Standard rating

Conditions

Exhaust air / outdoor air 20 12 7 6 Outside air / recycled air

2 1 20 15 max. Outside air / recycled air

- 7 - 8 20 15 max. Outside air / recycled air

- 15 - 20 15 max. Exhaust air / outdoor air 20 12 2 1 Application rating

conditions

(25)

Table 4 — Air-to air heat pumps and air conditioners - Cooling mode

temperature °C

°C

°C Comfort (outside air /

recycled air) (e.g. window, double duct, split units)

35 24a 27 19

Comfort (exhaust air / recycled air)

27 19 27 19

Comfort (exhaust air / outdoor air) 27 19 35 24 Single duct b, c 35 24 35 24 Control cabinet 35 24 35 24 Standard rating Conditions Close control 35 24 24 17 Comfort (outside air /

27 19a 21 15 Single duct b, c 27 19 27 19 Comfort (outside air /

46 24a 29 19 Control cabinet 50 30 35 24 Application rating conditions Close control 27 19 21 15 a

The wet bulb temperature condition is not required when testing units which do not evaporate condensate.

b

When using the calorimeter room method, pressure equilibrium between indoor and outdoor compartments shall be obtained by introducing into indoor compartment, air at the same rating temperature conditions.

c

The pressure difference between the two compartments of the calorimeter room shall not be greater than 1,25 Pa. This pressure equilibrium can be achieved by using an equalising device or by creating an open space area in the separation partition wall, which dimensions shall be calculated for the maximum airflow of the unit to be tested. If an open space is created in the partition wall, an air sampling device or several temperature sensors shall be used to measure the temperature of the air from the outdoor compartment to the indoor compartment

Table 5 — Water-to-air heat pumps - Heating mode

Outdoor heat exchanger Inlet heat exchanger Inlet temperature °C Outlet temperature °C

°C

Inlet wet bulb Temperature °C Water 15 12/a 20 15 max. Brine 0 -3/ a 20 15 max. Standard rating conditions

Water loop 20 17/ a 20 15 max. Water 10 b 20 15 max. Brine 5 b 20 15 max. Application rating conditions Brine - 5 b 20 15 max. a

For units designed for heating and cooling mode, the flow rate obtained during the test at standard rating conditions in cooling mode (see Table 6) is used.

b

(26)

Table 6 — Water-to-air heat pumps and air conditioners - Cooling mode

Outdoor heat exchanger Indoor heat exchanger Inlet temperature °C Outlet temperature °C

°C

Inlet wet bulb temperature °C Comfort 30 35 27 19 Control cabinet 15 20 35 24 Standard rating conditions Close control 30 35 24 17 Comfort 15 a 27 19 Comfort 40 a 27 19 Close control 15 a 21 15 Application rating conditions Close control 40 a 24 17 a

The test is performed at the water flow rate obtained during the test at the corresponding standard rating conditions.

Table 7 — Water-to-water heat pumps - Heating mode

Outdoor heat exchanger Indoor heat exchanger Inlet temperature °C Outlet temperature °C Inlet temperature °C Outlet temperature °C Water 10 7a 40 45 Brine 0 -3a 40 45

Water (for floor heating or similar application)

10 7a 30 35

Standard rating conditions

Brine (for floor heating or similar application)

0 -3a 30 35

Water 15 b b 45

Brine 5 b b 45

Brine (for floor heating or similar application) 5 b b 35 Brine - 5 b b 45 Brine 0 b b 55 Application rating conditions Water 10 b b 55 a

b

The test is performed at the flow rate obtained during the test at th e corresponding standard rating conditions.

Table 8 — Water-to-water heat pumps and liquid chilling packages - Cooling mode

Outdoor heat exchanger Indoor heat exchanger Inlet temperature °C Outlet temperature °C Inlet temperature °C Outlet temperature °C Water to water and brine to

water

30 35 12 7

Water to brine 30 35 0 - 5

Standard rating

conditions Water to water and brine to water (for floor cooling or

similar application)

30 35 23 18

Water to water 15 a a 7

Application rating

conditions Water to brine 15 a a - 5

a

(27)

Table 9 — Air-to-water heat pumps - Heating mode

temperature °C

Inlet wet bulb temperature °C Inlet temperature °C Outlet temperature °C Outdoor air 7 6 40 45 Exhaust air 20 12 40 45 Standard rating conditions

Outdoor air (for floor heating

or similar application) 7 6 30 35

Outdoor air (for floor heating

or similar application) 2 1

a

35 Outdoor air (for floor heating

or similar application) - 7 - 8

a

35 Outdoor air (for floor heating

or similar application) - 15 -a 35 Outdoor air 2 1 a 45 Outdoor air - 7 - 8 a 45 Outdoor air - 15 - a 45 Outdoor air 7 6 a 55 Application rating conditions Outdoor air -7 -8 a 55 a

The test is performed at the flow rate obtained during the test at the corresponding standard rating conditions.

Table 10 — Air-to-water heat pumps and liquid chilling packages - Cooling mode

temperature °C

Inlet wet bulb temperature °C Inlet temperature °C Outlet temperature °C water 35 - 12 7 brine 35 - 0 - 5 Standard rating

conditions _{water (for floor cooling or}

similar application) 35 - 23 18

water 27 - a 7

water (for floor cooling or

similar application) 27 -a 18 water 46 - a 7 Application rating conditions brine 27 - a - 5 a

(28)

Table 11 — Liquid chilling packages with remote condenser

Indoor heat exchanger Refrigerant side Inlet temperature °C Outlet temperature °C Saturated vapour/ bubble point temperaturea °C Liquid temperature °C Standard rating conditions Water 12 7 45 40 Brine 0 - 5 45 40 Application rating conditions Water b 7 35 30 Brine b - 5 35 30 a

The bubble point is defined from the pressure measured at the discharge of the compressor.

b

Table 12 — Liquid chilling packages with heat recovery condenser

Condenser Evaporatorc Heat recovery water heat exchanger

Air inlet dry bulb temperature a °C Water inlet temperatureb °C Water outlet temperature °C Brine outlet temperature °C Inlet temperature °C Outlet temperature °C Standard rating conditions 35 30 7 -5 40 45 a

If the air cooled condenser is ducted then the test shall be conducted at the minimum flow rate specified by the manufacturer.

b

At the minimum flow rate specified by the manufacturer.

c

With the flow rate as determined during the test at the corresponding standard rating conditions (see Table 8 or Table 10).

Table 13 — Heating capacity conditions for air-cooled multisplit systems Outdoor heat exchanger Indoor heat exchanger Inlet dry bulb

temperature °C

°C

Inlet wet bulb temperature °C Standard rating conditions 7 6 20 15 max. 2 1 20 15 max. Application rating conditions - 7 - 8 20 15 max.

Table 14 — Cooling capacity conditions for air-cooled multisplit systems Outdoor heat exchanger Indoor heat exchanger Inlet dry bulb

temperature °C

°C

Inlet wet bulb temperature °C Standard rating conditions 35 24 a 27 19 27 19 a 21 15 Application rating conditions 46 24 a 29 19 a

The wet bulb condition is not required when testing units which do not evaporate condensate.

(29)

Table 15 — Heat recovery conditions for air-cooled multisplit systems Three room calorimeter or air enthalpy Two room Air enthalpy Dry bulb temperature °C Wet bulb temperature °C Dry bulb temperature °C Wet bulb temperature °C Outdoor side 7 6 7 6 Heating 20 - 20 19 Application rating conditions Indoor side _Cooling ₂₇ ₁₉ ₂₀ ₁₉

Table 16 — Heating capacity conditions for water-cooled multisplit systems

Outdoor heat exchanger Indoor heat exchanger Inlet temperature °C Outlet temperature °C

°C

Inlet wet bulb Temperature °C Water 15 12/a 20 15 max. Brine 0 -3/a 20 15 max. Standard rating conditions

Water loop 20 17/a 20 15 max. Water 10 b 20 15 max. Brine 5 b 20 15 max. Application rating conditions Brine - 5 b 20 15 max. a

b

(30)

Table 17 — Cooling capacity conditions for water-cooled multisplit systems Outdoor heat exchanger Indoor heat exchanger

Inlet temperature °C Outlet temperature °C

°C

Inlet wet bulb temperature °C Standard rating conditions 30 35 27 19 15 a 27 19 Application rating conditions 40 a 27 19 a

The test is performed at the nominal water flow rate obtained during the test at the corresponding standard rating conditions.

(31)

Annex A

(normative)

Energy labelling application

A.1 General

The present standard shall be used to declare the energy efficiency class and to provide performance characteristics of air conditioners and heat pumps under the scope of the Energy Labelling Directive 2002/31/EC, for both the labelling and the technical documentation.

A.2 Rating conditions

A.2.1 General

The rating conditions for which the performance are declared are indicated in this standard and are specified hereafter for each type of product covered by the energy labelling.

The performance rating shall be established in accordance with the test procedure of EN 14511-3.

A.2.2 Air-cooled air conditioners (air-to-air conditioners)

Standard rating conditions “comfort” indicated in Table 4 shall be used to determine the cooling capacity, the EER, the annual energy consumption and the efficiency class of single split and packaged air-cooled air conditioners.

For reverse cycle units, the heating capacity and the efficiency class shall be determined from one of the standard rating conditions indicated in Table 3 depending of the heat source and heat sink.

Standard rating conditions indicated in Table 14 shall be used to determine the cooling capacity, the EER, the annual energy consumption and the efficiency class of air-cooled multisplit air conditioners.

For reverse cycle units, the heating capacity and the efficiency class shall be determined from the standard rating conditions indicated in Table 13.

A.2.3 Single-duct air conditioners

Standard rating conditions “single-duct” indicated in Table 4 shall be used to determine the cooling capacity, the EER, the annual energy consumption and the efficiency class of single-duct units.

A.2.4 Water-cooled air conditioners (water-to-air conditioners)

Standard rating conditions “comfort” indicated in Table 6 shall be used to determine the cooling capacity, the EER, the annual energy consumption and the efficiency class of split and packaged water-cooled air conditioners.

For reverse cycle units, the heating capacity and the efficiency class shall be determined from one of the standard rating conditions indicated in Table 5 depending of the heat source: water, brine or close loop.

Standard rating conditions indicated in Table 17 shall be used to determine the cooling capacity, the EER, the annual energy consumption and the efficiency class of water-cooled multisplit air conditioners.

(32)

For reverse cycle units, the heating capacity and the efficiency class shall be determined from the standard rating conditions indicated in Table 16.

A.2.5 Double duct air conditioners

Standard rating conditions “comfort” (outside air / recycled air) indicated in Table 4 shall be used to determine the cooling capacity, the EER, the annual energy consumption and the efficiency class of double duct air conditioners.

For reverse cycle units, the heating capacity and the efficiency class shall be determined from the standard rating conditions "Outside air / recycled air" indicated in Table 3.

A.2.6 Other appliances

Single-duct units operating in the heating mode to which Table 3.3 of Annex IV of Directive 2002/31/EC refers are not covered by EN 14511.

A.3 Test procedure

When the present standard is used for the energy labelling of air conditioners and heat pumps below 12 kW, the cooling / heating capacities, power input and EER/COP as well as the energy efficiency class of a product shall be determined by using exclusively the calorimeter room method.

For ducted units, the settings of the air flow rate and external static pressure shall be made prior to the cooling / heating capacity tests, according to EN 14511-3:2007, 4.4.1. Once determined, the static pressure shall be set, with dry coil, by adjusting to the air discharge area of the unit, a length of duct equipped with a damper which position shall not be changed during the capacity tests.

The length of duct and the distance of the damper from the discharge section of the unit shall conform to the requirements of EN 14511-3:2007, B.2.1.

A.4 Tolerances permitted on declared values

A.4.1 General

The following requirements apply to the declared values.

The requirements for the uncertainties of measurement of 4.3 of EN 14511-3:2007 shall be respected.

A.4.2 First testing

The performance published data shall be accepted as valid when a sample of a model, tested in accordance with the present standard, shall meet the following criteria for cooling and heating mode as applicable:

Tested cooling and heating capacity ≥ 0,88 X declared capacity Tested EER ≥ 0,85 X declared EER Tested COP ≥ 0,85 X declared COP

(33)

A.4.3 Second testing

If the result of test on capacity and/or EER/COP carried out on the first appliance is not in compliance with the requirements given in A.4.2, a second test shall be carried out on one other appliance. This second test shall meet the following criteria for cooling and heating mode as applicable:

Tested cooling and heating capacity ≥ 0,88 X declared capacity Tested EER ≥ 0,85 X declared EER Tested COP ≥ 0,85 X declared COP

(34)

Bibliography

[1] CEN/TS 14825, Air conditioners, liquid chilling packages and heat pumps with electrically driven compressors for space heating and cooling – Testing and rating at part load conditions

[2] Commission Directive 2002/31/EC – Implementation of Council Directive 92/75/EEC with regard to energy labelling of household air-conditioners

(35)

(36)

Geregistreerde

Belgische norm

NBN EN 14511-3

Luchtbehandelingsapparatuur, koeleenheden met vloeistof en

warmtepompen met elektrisch aangedreven compressoren voor

ruimteverwarming en voor koeling - Deel 3: Beproevingsmethoden

Climatiseurs, groupes refroidisseurs de liquide et pompes à chaleur avec compresseur entraîné par moteur électrique pour le chauffage et la réfrigération des locaux - Partie 3 : Méthodes d'essai

2e uitg., mei 2008

Normklasse: D 40

Air conditioners, liquid chilling packages and heat pumps with electrically driven compressors for space heating and cooling - Part 3: Test methods

Toelating tot publicatie: 29 januari 2008

Vervangt NBN EN 14511-3 (2004).

Deze Europese norm EN 14511-3:2008 heeft de status van een Belgische norm.

Deze Europese norm bestaat in drie officiële versies (Duits, Engels, Frans).

(37)

enregistrée

Climatiseurs, groupes refroidisseurs de liquide et pompes à chaleur

avec compresseur entraîné par moteur électrique pour le chauffage et la

réfrigération des locaux - Partie 3 : Méthodes d'essai

Luchtbehandelingsapparatuur, koeleenheden met vloeistof en warmtepompen met elektrisch aangedreven compressoren voor ruimteverwarming en voor koeling - Deel 3: Beproevingsmethoden

2e éd., mai 2008

Indice de classement: D 40

Air conditioners, liquid chilling packages and heat pumps with electrically driven compressors for space heating and cooling - Part 3: Test methods

Autorisation de publication: 29 janvier 2008

Remplace NBN EN 14511-3 (2004).

La présente norme européenne EN 14511-3:2008 a le statut d'une norme belge.

La présente norme européenne existe en trois versions officielles (allemand, anglais, français).

Bureau de Normalisation - Avenue de la Brabançonne 29 - 1000 Bruxelles - Belgique

(38)

NORME EUROPÉENNE

EUROPÄISCHE NORM

_{November 2007}

ICS

23.120 Supersedes

EN

14511-3:2004

English Version

Air conditioners, liquid chilling packages and heat pumps with

electrically driven compressors for space heating and cooling

-Part 3: Test methods

Climatiseurs, groupes refroidisseurs de liquide et pompes à chaleur avec compresseur entraîné par moteur électrique pour le chauffage et la réfrigération des locaux - Partie 3 :

Méthodes d'essai

Luftkonditionierer, Flüssigkeitskühlsätze und Wärmepumpen mit elektrisch angetriebenen Verdichtern für die Raumbeheizung und Kühlung - Teil 3: Prüfverfahren

This European Standard was approved by CEN on 13 October 2007.

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 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 Management Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.

EUROPEAN COMMITTEE FOR STANDARDIZATION C O M I T É E U R O P É E N D E N O R M A L I S A T I O N E U R O P Ä I S C H E S K O M I T E E F Ü R N O R M U N G

(39)

Foreword...4 1 Scope ...5 2 Normative references ...5 3 Terms and definitions ...5 4 Rating capacity test...6 4.1 Basic principles ...6 4.1.1 Heating capacity ...6 4.1.2 Cooling capacity ...6 4.1.3 Heat recovery capacity...7 4.1.4 Power input of fans for units without duct connection ...7 4.1.5 Power input of fans for units with duct connection...8 4.1.6 Power input of liquid pumps ...8 4.1.7 Units for use with remote condenser ...9 4.2 Test apparatus ...9 4.2.1 Arrangement of the test apparatus ...9 4.2.2 Installation and connection of the test object ...10 4.3 Uncertainties of measurement ...11 4.4 Test procedure ...12 4.4.1 General...12 4.4.2 Output measurement for water-to-water and water-to-air units ...14 4.4.3 Output measurement for cooling capacity of air-to-water and air-to-air units ...14 4.4.4 Output measurement for heating capacity of air-to-water and air-to-air units ...15 4.5 Test results ...17 4.5.1 Data to be recorded ...17 4.5.2 Cooling capacity and heat recovery capacity calculation...19 4.5.3 Heating capacity calculation ...20 4.5.4 Effective power input calculation...20 5 Heat recovery test for air-cooled multisplit systems...20 5.1 Test installation...20 5.1.1 General...20 5.1.2 Three-room calorimeter method ...21 5.1.3 Three-room air-enthalpy method ...21 5.1.4 Two-room air-enthalpy method ...21 5.2 Test procedure ...21 5.3 Test results ...21 6 Test report ...21 6.1 General information ...21 6.2 Additional information ...22 6.3 Rating test results...22 Annex A (informative) Calorimeter test method...23 Annex B (informative) Indoor air enthalpy test method ...31 Annex C (informative) Heating capacity tests - Flow chart and examples of different test

sequences ...33 Annex D (informative) Conformance criteria...37 Annex E (informative) Symbols used in annexes ...38 Annex F (informative) Test at system reduced capacity...40

(40)

Annex G (informative) Individual unit tests...41 Bibliography...43

(41)

Foreword

(42)

1 Scope

This part of EN 14511 specifies the test methods for the rating and performance of air and water-cooled air conditioners, liquid chilling packages, air-to-air, water-to-air, air-to-water and water-to-water heat pumps with electrically driven compressors when used for space heating and cooling.

It also specifies the method of testing and reporting for heat recovery capacities, system reduced capacities and the capacity of individual indoor units of multisplit systems, where applicable.

In the case of units consisting of several parts, the standard applies only to those designed and supplied as a complete package, except for liquid chilling packages with remote condenser.

NOTE 1 Part load testing of units is dealt with in CEN/TS 14825.

NOTE 2 All the symbols given in this text should be used regardless of the language used.

2 Normative references

The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.

EN 14511-1:2007, Air conditioners, liquid chilling packages and heat pumps with electrically driven compressors for space heating and cooling – Part 1: Terms and definitions

EN 14511-2:2007, Air conditioners, liquid chilling packages and heat pumps with electrically driven compressors for space heating and cooling – Part 2: Test conditions

3 Terms and definitions

(43)

4 Rating capacity test

4.1 Basic principles

4.1.1 Heating capacity

The heating capacity of air conditioners and of air-to-air or water-to-air heat pumps shall be determined by measurements in a calorimeter room or by the air enthalpy method which are described in Annex A and Annex B respectively.

The heating capacity of air-to-water, water-to-water heat pumps and liquid chilling packages shall be determined in accordance with the direct method at the water or brine heat exchanger, by determination of the volume flow of the heat transfer medium, and the inlet and outlet temperatures, taking into consideration the specific heat capacity and density of the heat transfer medium.

For steady state operation, the heating capacity shall be determined using the following formula:

t

c

q

P

_H

=

×

ρ

×

_p

∆

(1)

where:

P H is the heat capacity, in Watts;

q is the volume flow rate, in cubic metres per second; ρ is the density, in kilograms per cubic metre;

c p is the specific heat at constant pressure, in joules per kilogram and kelvin; ∆t is the difference between inlet and outlet temperatures, in kelvin .

For the heating capacity calculation in transient operation, refer to 4.5.3.2. The heating capacity shall be corrected for the heat from the fan or pump:

− if the fan or pump at the indoor heat exchanger is an integral part of the unit, the same power (calculated in 4.1.5.1 or 4.1.6.1) which is excluded from the total power input shall be also subtracted from the heating capacity;

− If the fan or pump at the indoor heat exchanger is not an integral part of the unit, the same power (calculated in 4.1.5.2 or 4.1.6.2) which is included in the effective power input shall be also added to the heating capacity.

4.1.2 Cooling capacity

The cooling capacity of air conditioners and of air-to-air or water-to-air heat pumps shall be determined by measurements in a calorimeter room or by the air enthalpy method which are described in Annex A and Annex B respectively.

The cooling capacity of air-to-water, water-to-water heat pumps and liquid chilling packages shall be determined in accordance with the direct method at the water or brine heat exchanger, by determination of the volume flow of the heat transfer medium, and the inlet and outlet temperatures, taking into consideration the specific heat capacity and density of the heat transfer medium.

EN 14511-1 to 4

Belgische norm

Belgische norm

Luchtbehandelingsapparatuur, koeleenheden met vloeistof en

Luchtbehandelingsapparatuur, koeleenheden met vloeistof en

warmtepompen met elektrisch aangedreven compressoren voor

warmtepompen met elektrisch aangedreven compressoren voor

ruimteverwarming en -koeling - Deel 1: Termen

ruimteverwarming en -koeling - Deel 1: Termen en definities

en definities

Normklasse: D 40

Normklasse: D 40

norme belge

norme belge

enregistrée

enregistrée

NBN EN 14511-1

NBN EN 14511-1

Climatiseurs, groupes refroidisseurs de liquide et pompes à

Climatiseurs, groupes refroidisseurs de liquide et pompes à chaleur

chaleur

avec compresseur entraîné par moteur électrique pour le chauffage et la

avec compresseur entraîné par moteur électrique pour le chauffage et la

réfrigération des locaux - Partie 1: Termes et définitions

réfrigération des locaux - Partie 1: Termes et définitions

Indice de classement: D 40

Indice de classement: D 40

enregistrée

enregistrée

Climatiseurs, groupes refroidisseurs de liquide et pompes à

Climatiseurs, groupes refroidisseurs de liquide et pompes à chaleur

chaleur

avec compresseur entraîné par moteur électrique pour le chauffage et la

avec compresseur entraîné par moteur électrique pour le chauffage et la

réfrigération des locaux - Partie 1: Termes et définitions

réfrigération des locaux - Partie 1: Termes et définitions

Indice de classement: D 40

Indice de classement: D 40

NORME EUROPÉENNE

NORME EUROPÉENNE

EUROPÄISCHE NORM

EUROPÄISCHE NORM

November 2007

November 2007

IIC

CS

S

2233..112200;

;

0011..004400..2233

S

Suuppeerrsseeddees

s

E

EN

N

1144551111--11::22000044

English Version

English Version

Air conditioners, liquid chilling packages and heat pumps with

Air conditioners, liquid chilling packages and heat pumps with

electrically driven compressors for space heating and cooling

electrically driven compressors for space heating and cooling

--Part 1: Terms and definitions

Part 1: Terms and definitions

Contents

Foreword

1 Scope

2 Terms and definitions

3 Classification

Index

Bibliography

Belgische norm

Luchtbehandelingsapparatuur, koeleenheden met vloeistof en

warmtepompen met elektrisch aangedreven compressoren voor

ruimteverwarming en -koeling - Deel 2: Beproevingsomstandigheden

Normklasse: D 40

norme belge

enregistrée

NBN EN 14511-2

_{November 2007}

_{November 2007}

_{November 2007}

_{November 2007}