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

1.1   The scope of prEN 14511 1 is applicable.
1.2   This European Standard specifies the test methods 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 cooling. These test methods also apply for the rating and performance of process chillers.
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.
This European Standard also makes possible to rate multisplit and modular heat recovery multisplit systems by rating separately the indoor and outdoor units.

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

1.1   Es gilt der Anwendungsbereich von EN 14511-1.
1.2   Diese Europäische Norm legt die Prüfverfahren für die Bemessung und Leistung von Luft-konditionierern, Flüssigkeitskühlsätzen und Wärmepumpen, die Luft, Wasser oder Sole als Wärmeträger nutzen, mit elektrisch angetriebenen Verdichtern für die Raumbeheizung und -kühlung fest. Diese Prüfverfahren gelten auch für die Bemessung und Leistung von Prozess-Kühlern.
Sie legt weiterhin ein Verfahren fest zur Prüfung und Angabe von Wärmerückgewinnungsleistungen, system¬reduzierten Leistungen sowie der Leistung von Einzelgeräten von Multi-Split-Systemen für die Aufstellung im Innenraum, soweit zutreffend.
Diese Europäische Norm bietet außerdem die Möglichkeit, die Leistung von Multi-Split-Systemen und modularen Multi-Split-Systemen mit Wärmerückgewinnung durch getrennte Leistungsbemessung von Geräten für die Aufstellung im Innenraum und Geräten für die Außenaufstellung (Innen- und Außengeräte) zu bemessen.

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 3: Méthodes d'essai

1.1   Le domaine d’application du prEN 14511-1 est applicable.
1.2   La présente Norme européenne spécifie les méthodes d’essai pour la détermination des caractéristiques de performance des climatiseurs, groupes refroidisseurs de liquide et pompes à chaleur utilisant l’air, l’eau ou l’eau glycolée comme fluide caloporteur, avec compresseur entraîné par moteur électrique, lorsqu’ils sont utilisés pour le chauffage et le refroidissement des locaux. Ces méthodes d’essai s’appliquent également à la détermination des caractéristiques de performance des refroidisseurs industriels.
Elle spécifie aussi la méthode d’essai et de rapport pour les puissances calorifiques de récupération, les puissances réduites de système et la puissance individuelle des unités intérieures des systèmes multisplits, le cas échéant.
La présente Norme européenne permet également de déterminer les caractéristiques des systèmes multisplits et des systèmes multisplits modulaires à récupération de chaleur en considérant les appareils intérieurs et extérieurs séparément.

Klimatske naprave, enote za hlajenje kapljevine, toplotne črpalke za ogrevanje in hlajenje prostora ter procesne hladilne naprave z električnimi kompresorji - 3. del: Preskusne metode

1.1 Velja področje uporabe standarda prEN 14511 1.
1.2 Ta evropski standard določa preskusne metode za ocenjevanje in delovanje klimatskih naprav, enot za tekočinsko hlajenje in toplotnih črpalk, ki uporabljajo zrak, vodo ali slanico kot medij za prenos toplote, z električnimi kompresorji, kadar se uporabljajo za segrevanje in hlajenje prostora. Določa tudi izraze in definicije za ocenjevanje in delovanje procesnih ohlajevalnikov.
Določa tudi metodo za preskušanje in sporočanje zmogljivosti vračanja toplote, zmanjšanih sistemskih zmogljivosti in zmogljivosti posameznih notranjih enot sistemov z več razcepi, kjer je to primerno.
Ta evropski standard omogoča tudi oceno sistemov z več razcepi in modularnih sistemov z več razcepi za vračanje toplote z ločeno oceno notranjih in zunanjih enot.

General Information

Status
Published
Public Enquiry End Date
30-Dec-2015
Publication Date
04-Apr-2018
Technical Committee
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
26-Mar-2018
Due Date
31-May-2018
Completion Date
05-Apr-2018

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SLOVENSKI STANDARD
SIST EN 14511-3:2018
01-maj-2018
1DGRPHãþD
SIST EN 14511-3:2013

.OLPDWVNHQDSUDYHHQRWH]DKODMHQMHNDSOMHYLQHWRSORWQHþUSDONH]DRJUHYDQMHLQ

KODMHQMHSURVWRUDWHUSURFHVQHKODGLOQHQDSUDYH]HOHNWULþQLPLNRPSUHVRUMLGHO

3UHVNXVQHPHWRGH

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

and process chillers, with electrically driven compressors - Part 3: Test methods

Luftkonditionierer, Flüssigkeitskühlsätze und Wärmepumpen für die Raumbeheizung und

-kühlung und Prozess-Kühler mit elektrisch angetriebenen Verdichtern - Teil 3:
Prüfverfahren

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 3: Méthodes d'essai
Ta slovenski standard je istoveten z: EN 14511-3:2018
ICS:
23.120 =UDþQLNL9HWUQLNL.OLPDWVNH Ventilators. Fans. Air-
QDSUDYH conditioners
27.080 7RSORWQHþUSDONH Heat pumps
91.140.30 3UH]UDþHYDOQLLQNOLPDWVNL Ventilation and air-
VLVWHPL conditioning systems
SIST EN 14511-3:2018 en,fr,de

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

---------------------- Page: 1 ----------------------
SIST EN 14511-3:2018
---------------------- Page: 2 ----------------------
SIST EN 14511-3:2018
EN 14511-3
EUROPEAN STANDARD
NORME EUROPÉENNE
March 2018
EUROPÄISCHE NORM
ICS 27.080; 91.140.30 Supersedes EN 14511-3:2013
English Version
Air conditioners, liquid chilling packages and heat pumps
for space heating and cooling and process chillers, with
electrically driven compressors - Part 3: Test methods

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 3: Prüfverfahren

Partie 3: Méthodes d'essai
This European Standard was approved by CEN on 31 December 2017.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this

European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references

concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN

member.

This European Standard exists in three official versions (English, French, German). A version in any other language made by

translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management

Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,

Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,

Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, 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

© 2018 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 14511-3:2018 E

worldwide for CEN national Members.
---------------------- Page: 3 ----------------------
SIST EN 14511-3:2018
EN 14511-3:2018 (E)
Contents Page

European foreword ....................................................................................................................................................... 5

1 Scope .................................................................................................................................................................... 7

2 Normative references .................................................................................................................................... 7

3 Terms and definitions ................................................................................................................................... 7

4 Tests for determination of capacities ...................................................................................................... 7

4.1 Basic principles, method of calculation for the determination of capacities ............................ 7

4.1.1 Heating capacity .............................................................................................................................................. 7

4.1.2 Cooling capacity ............................................................................................................................................... 8

4.1.3 Heat recovery capacity .................................................................................................................................. 9

4.1.4 Capacity correction......................................................................................................................................... 9

4.1.5 Effective power input .................................................................................................................................. 12

4.1.6 Units on a distribution network of pressured water ...................................................................... 13

4.1.7 Units for use with remote condenser .................................................................................................... 13

4.2 Test apparatus............................................................................................................................................... 14

4.2.1 Arrangement of the test apparatus........................................................................................................ 14

4.2.2 Installation and connection of the test object.................................................................................... 14

4.3 Uncertainties of measurement ................................................................................................................ 16

4.4 Test procedure .............................................................................................................................................. 18

4.4.1 Settings ............................................................................................................................................................. 18

4.4.2 Output measurement for water (brine)-to-water (brine) and water (brine)-to-air

units .................................................................................................................................................................. 20

4.4.3 Output measurement for cooling capacity of air-to-water (brine) and air-to-air units ..... 21

4.4.4 Output measurement for heating capacity of air-to-air and air-to-water units .................... 21

4.5 Test results ..................................................................................................................................................... 26

4.5.1 Data to be recorded ..................................................................................................................................... 26

4.5.2 Cooling capacity and heat recovery capacity calculation .............................................................. 29

4.5.3 Heating capacity calculation .................................................................................................................... 29

4.5.4 Effective power input calculation........................................................................................................... 30

5 Electrical consumptions for single duct and double duct units .................................................. 30

5.1 Determination of power consumption due to standby mode ...................................................... 30

5.2 Determination of power consumption in off-mode ......................................................................... 31

5.3 Electricity consumption ............................................................................................................................. 31

6 Air flow rate measurement of ducted units ........................................................................................ 31

7 Heat recovery test for air-cooled multisplit system ........................................................................ 31

7.1 Test installation ............................................................................................................................................ 31

7.1.1 General ............................................................................................................................................................. 31

7.1.2 Three-room calorimeter method ........................................................................................................... 32

7.1.3 Three-room air-enthalpy method .......................................................................................................... 32

7.1.4 Two-room air-enthalpy method ............................................................................................................. 32

7.2 Test procedure .............................................................................................................................................. 32

7.3 Test results ..................................................................................................................................................... 32

8 Test report ...................................................................................................................................................... 32

8.1 General information .................................................................................................................................... 32

8.2 Additional information .............................................................................................................................. 33

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SIST EN 14511-3:2018
EN 14511-3:2018 (E)

8.3 Rating test results ......................................................................................................................................... 33

Annex A (normative) Calorimeter test method .............................................................................................. 34

A.1 General ............................................................................................................................................................. 34

A.2 Calibrated room-type calorimeter ......................................................................................................... 36

A.3 Balanced ambient room-type calorimeter .......................................................................................... 37

A.4 Calculations-cooling capacities ............................................................................................................... 37

A.4.1 General ............................................................................................................................................................. 37

A.4.2 Total cooling capacity on the indoor-side ........................................................................................... 38

A.4.3 Total cooling capacity of liquid (water)-cooled equipment deducted from the

condenser side ............................................................................................................................................... 39

A.4.4 Latent cooling capacity (room dehumidifying capacity) ................................................................ 39

A.4.5 Sensible cooling capacity ........................................................................................................................... 39

A.4.6 Sensible heat ratio ........................................................................................................................................ 39

A.5 Calculation-heating capacities ................................................................................................................. 40

A.5.1 General ............................................................................................................................................................. 40

A.5.2 Determination of the heating capacity by measurements in the indoor-side room ............ 40

A.5.3 Determination of the heating capacity by measurements in the outdoor-side room ......... 40

A.5.4 Total heating capacity of liquid (water)-to-air unit deducted from the water side ............. 41

Annex B (normative) Indoor air enthalpy test method ............................................................................... 42

B.1 General ............................................................................................................................................................. 42

B.2 Determination of the air flow rate .......................................................................................................... 42

B.3 Calculations-cooling capacities ............................................................................................................... 42

B.4 Calculations-heating capacities ............................................................................................................... 43

Annex C (informative) Conformance criteria .................................................................................................. 44

C.1 Liquid chilling packages ............................................................................................................................. 44

C.2 Calorimeter room method ......................................................................................................................... 44

C.3 Heat recovery of multisplit systems ...................................................................................................... 44

Annex D (informative) Symbols used in annexes ........................................................................................... 45

Annex E (informative) Test at system reduced capacity ............................................................................. 47

E.1 Test at system reduced capacity for multisplit system and modular heat recovery

multisplit system .......................................................................................................................................... 47

E.2 Selection of units ........................................................................................................................................... 47

E.3 Test results ...................................................................................................................................................... 47

Annex F (informative) Individual unit tests ..................................................................................................... 48

F.1 General ............................................................................................................................................................. 48

F.1.1 Methods ............................................................................................................................................................ 48

F.1.2 Calorimeter method..................................................................................................................................... 48

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SIST EN 14511-3:2018
EN 14511-3:2018 (E)

F.1.3 Air-enthalpy method ................................................................................................................................... 48

F.2 Test results ..................................................................................................................................................... 48

F.3 Published results .......................................................................................................................................... 48

Annex G (normative) Determination of the liquid pump efficiency ....................................................... 49

G.1 General ............................................................................................................................................................. 49

G.2 Hydraulic power of the liquid pump ..................................................................................................... 49

G.2.1 The liquid pump is an integral part of the unit ................................................................................. 49

G.2.2 The liquid pump is not an integral part of the unit .......................................................................... 49

G.3 Efficiency of integrated pumps ................................................................................................................ 49

G.3.1 Glandless circulators .................................................................................................................................. 49

G.3.2 Dry motor pumps ......................................................................................................................................... 50

G.4 Efficiency of non-integrated pumps ...................................................................................................... 51

Annex H (informative) Rating of indoor and outdoor units of multisplit and modular heat

recovery multisplit systems ..................................................................................................................... 52

H.1 General ............................................................................................................................................................. 52

H.2 Terms and definitions ................................................................................................................................ 52

H.3 Rating of indoor units ................................................................................................................................. 53

H.3.1 General ............................................................................................................................................................. 53

H.3.2 Air flow rate measurement ....................................................................................................................... 53

H.3.3 Measurement of the power input of indoor units ............................................................................ 53

H.4 Rating of outdoor units .............................................................................................................................. 53

H.4.1 General ............................................................................................................................................................. 53

H.4.2 Test procedure .............................................................................................................................................. 53

Annex I (normative) Air flow rate measurement .......................................................................................... 54

I.1 General ............................................................................................................................................................. 54

I.2 Test installation ............................................................................................................................................ 54

I.3 Test conditions .............................................................................................................................................. 54

I.4 Air flow measurement ................................................................................................................................ 54

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

requirements of Commission regulation (EC) No 206/2012 aimed to be covered .............. 55

Annex ZB (informative) Relationship between this European Standard and the energy

labelling requirements of Commission Delegated Regulation (EU) No 626/2011

aimed to be covered .................................................................................................................................... 56

Bibliography ................................................................................................................................................................. 58

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SIST EN 14511-3:2018
EN 14511-3:2018 (E)
European foreword

This document (EN 14511-3:2018) has been prepared by Technical Committee CEN/TC 113 “Heat

pumps and air conditioning units”, the secretariat of which is held by UNE.

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 September 2018, and conflicting national standards

shall be withdrawn at the latest by March 2021.

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

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

This document supersedes EN 14511-3:2013.

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 Regulation No 206/2012

and EU Regulation No 626/2011.

For relationship with EU Regulation No 206/2012 and EU Regulation No 626/2011, see informative

Annexes ZA and ZB, which are an integral part of this document.
The main changes with respect to the previous edition are listed below:
a) the revision of Annexes A and B on the test methods;
b) deletion of Annex C;

c) the revision of Annex G (Annex H on the previous version) on liquid pumps corrections;

d) the inclusion of process chillers into the scope of the EN 14511 series and of this Part 3.

Although 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 and comfort fans, it is also intended to support the Essential Requirements of the

European Directive 2010/30/EU.
EN 14511 currently comprises the following parts:

— 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,

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

chillers, with electrically driven compressors — Part 2: Test conditions,

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

chillers, with electrically driven compressors — Part 3: Test methods,

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

chillers, with electrically driven compressors — 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,

---------------------- Page: 7 ----------------------
SIST EN 14511-3:2018
EN 14511-3:2018 (E)

Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia,

France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta,

Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,

Turkey and the United Kingdom.
---------------------- Page: 8 ----------------------
SIST EN 14511-3:2018
EN 14511-3:2018 (E)
1 Scope
1.1 The scope of EN 14511-1 is applicable.

1.2 This European Standard specifies the test methods 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 cooling. These test

methods also apply for the rating and performance of process chillers.

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.

This European Standard also makes possible to rate multisplit and modular heat recovery multisplit

systems by rating separately the indoor and outdoor units.
2 Normative references

The following documents are referred to in the text in such a way that some or all of their content

constitutes requirements 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 14511-1:2018, 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

EN 14511-2:2018, Air conditioners, liquid chilling packages and heat pumps for space heating and cooling

and process chillers, with electrically driven compressors — Part 2: Test conditions

3 Terms and definitions

For the purposes of this document, the terms and definitions given in EN 14511-1:2018 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
4 Tests for determination of capacities
4.1 Basic principles, method of calculation for the determination of capacities
4.1.1 Heating capacity

The heating capacity of air conditioners and of air-to-air or water(brine)-to-air heat pumps shall be

determined by measurements in a calorimeter room (see Annex A) or by the air enthalpy method

(see Annex B).

However, the heating capacity of air conditioners and of air-to-air heat pumps having a capacity below

or equal to 12 kW for cooling, or heating if the unit has no cooling function, under the standard rating

conditions of EN 14511-2 shall be determined by measurements in a calorimeter room.

For heating only units the limit of 12 kW applies to the heating capacity as given under the standard

rating conditions of EN 14511-2.
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SIST EN 14511-3:2018
EN 14511-3:2018 (E)

When using the air enthalpy method, in steady-state operation, the heating capacity shall be determined

using the following formula:
Pq× ρ× c ×∆T (1)
where
P is the heating capacity, expressed in W;
q is the air volume flow rate as measured during the test, expressed in m /s;
ρ is the air density as measured during the test, expressed in kg/ m ;
c is the specific heat at constant pressure, expressed in J/(kg.K);
ΔT is the difference between outlet and inlet temperatures, expressed in K.

The air density shall be determined for the air conditions at the air flow measuring device.

NOTE 1 The mass flow rate can directly be determined instead of the term (q x ρ).

NOTE 2 The enthalpy change ΔH can directly be used instead of the term (c x ΔT).
For the heating capacity calculation in transient operation, refer to 4.5.3.2.

The heating capacity of air-to-water(brine), water(brine)-to-water(brine) 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.

The measured heating capacity of air-to-air and water(brine)-to-air units shall be corrected for the heat

from the indoor fan as specified in 4.1.4.1 or 4.1.4.2.

The measured heating capacity of water(brine)-to-water(brine) and air-to-water(brine)units shall be

corrected for the heat from the indoor liquid pump as specified in 4.1.4.3.
4.1.2 Cooling capacity

The cooling capacity of air conditioners and of air-to-air or water(brine)-to-air heat pumps shall be

determined by measurements in a calorimeter room (see Annex A) or by the air enthalpy method

(see Annex B).

However, air conditioners and of air-to-air heat pumps having a cooling capacity below or equal to 12

kW under the standard rating conditions given in EN 14511-2, shall be tested using a calorimeter room.

When using the air enthalpy method, the cooling capacity shall be determined using the following

formula:
Pq= ×ρ ×c ×ΔT (2)
where
P is the cooling capacity, expressed in W;
q is the air volume flow rate as measured during the test, expressed in m /s;
ρ is the air density as measured during the test, expressed in kg/m ;
c is the specific heat at constant pressure, expressed in J/(kg.K);
---------------------- Page: 10 ----------------------
SIST EN 14511-3:2018
EN 14511-3:2018 (E)
ΔT is the difference between inlet and outlet temperatures, expressed in K.

The air density shall be determined for the air conditions at the air flow measuring device.

NOTE 1 The mass flow rate can directly be determined instead of the term (q x ρ).

NOTE 2 The enthalp
...

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