SIST EN 14511-3:2018

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: Withdrawn
• Public Enquiry End Date: 30-Dec-2015
• Publication Date: 04-Apr-2018
• Withdrawal Date: 13-Sep-2022
• ICS: 23.120 - Ventilators. Fans. Air-conditioners
• ICS: 27.080 - Heat pumps
• ICS: 91.140.30 - Ventilation and air-conditioning systems
• Technical Committee: OGS - Heating for buildings
• Current Stage: 9900 - Withdrawal (Adopted Project)
• Start Date: 14-Sep-2022
• Due Date: 07-Oct-2022
• Completion Date: 14-Sep-2022
• Directive: 2009/125/EC - Directive 2005/32/EC of the European Parliament and of the Council of 6 July 2005 establishing a framework for the setting of ecodesign requirements for energy-using products and amending Council Directive 92/42/EEC and Directives 96/57/EC and 2000/55/EC of the European Parliament and of the Council
• Directive: 206/2012 - Commission Regulation (EU) No 206/2012 of 6 March 2012 implementing Directive 2009/125/EC of the European Parliament and of the Council with regard to ecodesign requirements for air conditioners and comfort fans
• Mandate: M/488 - Mandate to CEN, CENELEC and ETSI in the field of air conditioners and comfort fans
• Mandate: M/495 - Standardisation mandate to CEN, CENELEC and ETSI under Directive 2009/125/EC relating to harmonised standards in the field of Ecodesign
• Ref Project: EN 14511-3:2018 - Air conditioners, liquid chilling packages and heat pumps for space heating and cooling and process chillers, with electrically driven compressors - Part 3: Test methods

Relations

• Replaced By: SIST EN 14511-3:2022 - Air conditioners, liquid chilling packages and heat pumps for space heating and cooling and process chillers, with electrically driven compressors - Part 3: Test methods
• Effective Date: 14-Sep-2022
• Replaces: SIST EN 14511-3:2013 - Air conditioners, liquid chilling packages and heat pumps with electrically driven compressors for space heating and cooling - Part 3: Test methods
• Effective Date: 01-May-2018
• Revised: SIST EN 14511-3:2022 - Air conditioners, liquid chilling packages and heat pumps for space heating and cooling and process chillers, with electrically driven compressors - Part 3: Test methods
• Effective Date: 01-Apr-2021
• Replaces: SIST EN 14511-3:2013 - Air conditioners, liquid chilling packages and heat pumps with electrically driven compressors for space heating and cooling - Part 3: Test methods
• Effective Date: 08-Jun-2022

Standards Content (Sample)

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.

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SIST EN 14511-3:2018

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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.

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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
2

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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
3

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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

4

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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,
5

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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.
6

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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.
7

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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)
Hp
where
P is the heating capacity, expressed in W;
H
3
q is the air volume flow rate as measured during the test, expressed in m /s;
3
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);
p
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).
p
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)
Cp
where
P is the cooling capacity, expressed in W;
C
3
q is the air volume flow rate as measured during the test, expressed in m /s;
3
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);
p
8
=

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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
...

SLOVENSKI STANDARD
oSIST prEN 14511-3:2015
01-december-2015
.OLPDWVNHQDSUDYHHQRWH]DWHNRþLQVNRKODMHQMHLQWRSORWQHþUSDONH]DRJUHYDQMH
LQKODMHQMHSURVWRUDLQHOHNWULþQLNRPSUHVRUML]DRJUHYDQMHLQKODMHQMHSURVWRUD
GHO3UHVNXVQHPHWRGH
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: prEN 14511-3
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
oSIST prEN 14511-3:2015 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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oSIST prEN 14511-3:2015

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oSIST prEN 14511-3:2015


DRAFT
EUROPEAN STANDARD
prEN 14511-3
NORME EUROPÉENNE

EUROPÄISCHE NORM

October 2015
ICS 27.080; 91.140.30 Will supersede 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

This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee
CEN/TC 113.

If this draft becomes a European Standard, CEN members are bound to comply with the CEN/CENELEC Internal Regulations
which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.

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

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

Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are
aware and to provide supporting documentation.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without
notice and shall not be referred to as a European Standard.


EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2015 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 14511-3:2015 E
worldwide for CEN national Members.

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oSIST prEN 14511-3:2015
prEN 14511-3:2015 (E)
Contents Page
European foreword . 5
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 6
4 Rating capacity test . 6
4.1 Basic principles method of calculation for the determination of capacities . 6
4.1.1 Heating capacity . 6
4.1.2 Cooling capacity . 7
4.1.3 Heat recovery capacity . 8
4.1.4 Power input of fans for units without duct connection . 8
4.1.5 Power input of fans for units with duct connection. 8
4.1.6 Power input of liquid pumps. 9
4.1.7 Units for use with remote condenser . 10
4.2 Test apparatus. 10
4.2.1 Arrangement of the test apparatus . 10
4.2.2 Installation and connection of the test object. 11
4.3 Uncertainties of measurement . 12
4.4 Test procedure . 14
4.4.1 General . 14
4.4.2 Output measurement for water (brine)-to-water (brine) and water (brine)-to-air
units . 16
4.4.3 Output measurement for cooling capacity of air-to-water and air-to-air units . 17
4.4.4 Output measurement for heating capacity of air-to-air units with the air enthalpy
method and of air-to-water units . 17
4.4.5 Output measurement for heating capacity of air-to-air units with the calorimeter
room . 19
4.5 Test results . 21
4.5.1 Data to be recorded . 21
4.5.2 Cooling capacity and heat recovery capacity calculation . 24
4.5.3 Heating capacity calculation . 24
4.5.4 Effective power input calculation. 24
5 Electrical consumptions for single duct and double duct units . 25
5.1 Determination of power consumption due to standby mode . 25
5.2 Determination of power consumption in off-mode . 25
5.3 Electricity consumption . 25
6 Air flow rate measurement of ducted units . 26
7 Heat recovery test for air-cooled multisplit systems . 26
7.1 Test installation . 26
7.1.1 General . 26
7.1.2 Three-room calorimeter method . 26
7.1.3 Three-room air-enthalpy method . 26
7.1.4 Two-room air-enthalpy method . 26
7.2 Test procedure . 26
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7.3 Test results . 27
8 Test report . 27
8.1 General information . 27
8.2 Additional information . 27
8.3 Rating test results . 27
Annex A (normative) Calorimeter test method . 29
A.1 General . 29
A.2 Calibrated room-type calorimeter . 31
A.3 Balanced ambient room-type calorimeter . 32
A.4 Calculations-cooling capacities . 32
A.4.1 General . 32
A.4.2 Total cooling capacity on the indoor-side, as tested in either the calibrated or
balanced-ambient, room-type calorimeter . 33
A.4.3 Total cooling capacity of liquid (water)-cooled equipment deducted from the
condenser side . 34
A.4.4 Latent cooling capacity (room dehumidifying capacity) . 34
A.4.5 Sensible cooling capacity . 34
A.4.6 Sensible heat ratio . 34
A.5 Calculation-heating capacities . 35
A.5.1 General . 35
A.5.2 Determination of the heating capacity by measurement in the indoor-side room . 35
A.5.3 Determination of the heating capacity by measurement of the heat absorbing side . 35
A.5.4 Total heating capacity of liquid (water)-to-air unit deducted from the evaporator
side . 36
Annex B (informative) Indoor air enthalpy test method . 37
B.1 General . 37
B.2 Determination of the air flow rate . 37
B.3 Calculations-cooling capacities . 37
B.4 Calculations-heating capacities . 38
Annex C (informative) Heating capacity tests - Flow chart and examples of different test
sequences . 39
Annex D (informative) Conformance criteria . 44
D.1 Liquid chilling packages . 44
D.2 Calorimeter room method . 44
D.3 Heat recovery of multisplit systems . 44
Annex E (informative) Symbols used in annexes . 45
Annex F (informative) Test at system reduced capacity . 47
F.1 Test at system reduced capacity for multisplit system and modular heat recovery
multisplit system . 47
F.2 Selection of units . 47
F.3 Temperature conditions . 47
F.4 Test results . 47
Annex G (informative) Individual unit tests . 48
G.1 General . 48
G.1.1 Methods . 48
G.1.2 Calorimeter method. 48
G.1.3 Air-enthalpy method . 48
G.2 Temperatures conditions . 48
G.3 Other test conditions . 48
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G.4 Test results . 48
G.5 Published results . 48
Annex H (normative) Determination of the liquid pump efficiency . 49
H.1 General . 49
H.2 Hydraulic power of the liquid pump . 49
H.2.1 The liquid pump is an integral part of the unit . 49
H.2.2 The liquid pump is not an integral part of the unit . 49
H.3 Efficiency of integral pumps . 49
H.3.1 Glandless circulators . 49
H.3.2 Dry motor pumps . 50
H.4 Efficiency of non-integral pumps . 51
Annex I (informative) Rating of indoor and outdoor units of multisplit and modular heat
recovery multisplit system . 52
I.1 General . 52
I.2 Terms and definitions . 52
I.3 Rating of indoor units . 52
I.3.1 General . 52
I.3.2 Air flow rate measurement . 53
I.3.3 Measurement of the power input of indoor units . 53
I.4 Rating of outdoor units . 53
I.4.1 General . 53
I.4.2 Test conditions . 53
I.4.3 Test procedure . 53
Annex J (normative) Air flow rate measurement . 54
J.1 General . 54
J.2 Test installation . 54
J.3 Test conditions . 54
J.4 Air flow measurement . 54
Annex ZA (informative) Relationship between this European Standard and the
requirements of Commission regulation (EC) No 206/2012 and Commission
delegated Regulation (EU) No 626/2011 . 55
Bibliography . 57

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oSIST prEN 14511-3:2015
prEN 14511-3:2015 (E)
European foreword
This document (prEN 14511-3:2015) has been prepared by Technical Committee CEN/TC 113 “Heat
pumps and air conditioning units”, the secretariat of which is held by AENOR.
This document is currently submitted to the CEN Enquiry.
This document will supersede 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.
For relationship with EU Regulation No 206/2012, see informative Annex ZA, which is an integral part
of this document.
The main changes with respect to the previous edition are listed below:
a) the revision of Annexes A and B on the test methods;
b) the revision of Annex H on liquid pumps corrections;
c) 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.
prEN 14511 currently comprises the following parts:
— Air conditioners, liquid chilling packages and heat pumps for space heating and cooling and process
chillers using electrically driven compressors — Part 1: Terms and definitions,
— Air conditioners, liquid chilling packages and heat pumps with electrically driven compressors for
space heating and cooling and process chillers, using 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.
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oSIST prEN 14511-3:2015
prEN 14511-3:2015 (E)
1 Scope
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.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.
prEN 14511-1:2015, Air conditioners, liquid chilling packages and heat pumps for space heating and
cooling and process chillers, with electrically driven compressors — Part 1: Terms, definitions and
classification
prEN 14511-2:2015, 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 prEN 14511-1:2015 apply.
4 Rating capacity test
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 cooling capacity
below or equal to 12 kW shall be determined by measurements in a calorimeter room.
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.
For steady-state operation, the heating capacity shall be determined using the following formula:
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oSIST prEN 14511-3:2015
prEN 14511-3:2015 (E)
Pq×ρ× c×∆t (1)
Hp
where
P is the heat capacity, expressed in Watts;
H
q is the volume flow rate, expressed in cubic metres per second;
ρ is the density, expressed in kilograms per cubic metre;
c is the specific heat at constant pressure, expressed in joules per kilogram and Kelvin;
p
Δt is the difference between inlet and outlet temperatures, expressed in Kelvin.
NOTE 1 The mass flow rate can be determined directly instead of the term (q x ρ).
NOTE 2 The enthalpy change ΔH can be directly measured instead of the term (cp x Δt).
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:
a) if the fan or pump at the indoor heat exchanger is an integral part of the unit, the same power
(calculated in 4.1.5.2 or 4.1.6.3) which is excluded from the total power input shall be also
subtracted from the heating capacity;
b) if the fan or pump at the indoor heat exchanger is not an integral part of the unit, the same power
(calculated in 4.1.5.3 or 4.1.6.4) 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/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 cooling capacity of air conditioners and of air-to-air heat pumps having a cooling capacity
below or equal to 12 kW shall be determined by measurements in a calorimeter room.
The cooling 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 cooling capacity shall be determined using the following formula:
Pq=×ρ∆× c× t (2)
C p
where
P is the cooling capacity, expressed in watts;
C
q is the volume flow rate, expressed in cubic metres per second;
ρ is the density, expressed in kilograms per cubic metre;
c is the specific heat at constant pressure, expressed in joules per kilogram and Kelvin;
p
Δt is the difference between inlet and outlet temperatures, expressed in Kelvin.
NOTE 1 The mass flow rate can be determined directly instead of the term (q x ρ).
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NOTE 2 The enthalpy chan
...