EN 14511-3:2018
(Main)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 3: Test methods
1.1 Es gilt der Anwendungsbereich von EN 14511-1.
1.2 Diese Europäische Norm legt die Prüfverfahren für die Bemessung und Leistung von Luftkondi-tionierern, Flüssigkeitskühlsätzen und Wärmepumpen, die Luft, Wasser oder Sole als Wärmeträger nutzen und mit elektrisch angetriebenen Verdichtern betrieben werden, für die Raumbeheizung und -kühlung fest. Diese Prüfverfahren gelten auch für die Bemessung und Leistung von Prozess-Kühlern.
Sie legt weiterhin ein Verfahren zur Prüfung und Angabe von Wärmerückgewinnungsleistungen, systemreduzierten Leistungen sowie der Leistung von Einzelgeräten von Multi-Split-Systemen für die Aufstellung im Innenraum, soweit zutreffend, fest.
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.
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 FprEN 14511 1.
1.2 Diese Europäische Norm legt die Prüfverfahren für die Bemessung und Leistung von Luftkonditionierern, 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, systemreduzierten 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 de l'EN 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 multi-splits, le cas échéant.
La présente Norme européenne permet également de déterminer les caractéristiques des systèmes multi-splits et des systèmes multi-splits 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
- Publication Date
- 13-Mar-2018
- Withdrawal Date
- 13-Apr-2025
- Technical Committee
- CEN/TC 113 - Heat pumps and air conditioning units
- Drafting Committee
- CEN/TC 113/WG 8 - Revision of existing standards
- Current Stage
- 9960 - Withdrawal effective - Withdrawal
- Start Date
- 07-Sep-2022
- Completion Date
- 14-Apr-2025
Relations
- Effective Date
- 08-Jun-2022
- Effective Date
- 31-Jul-2019
Frequently Asked Questions
EN 14511-3:2018 is a standard published by the European Committee for Standardization (CEN). Its full title is "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 standard covers: 1.1 Es gilt der Anwendungsbereich von EN 14511-1. 1.2 Diese Europäische Norm legt die Prüfverfahren für die Bemessung und Leistung von Luftkondi-tionierern, Flüssigkeitskühlsätzen und Wärmepumpen, die Luft, Wasser oder Sole als Wärmeträger nutzen und mit elektrisch angetriebenen Verdichtern betrieben werden, für die Raumbeheizung und -kühlung fest. Diese Prüfverfahren gelten auch für die Bemessung und Leistung von Prozess-Kühlern. Sie legt weiterhin ein Verfahren zur Prüfung und Angabe von Wärmerückgewinnungsleistungen, systemreduzierten Leistungen sowie der Leistung von Einzelgeräten von Multi-Split-Systemen für die Aufstellung im Innenraum, soweit zutreffend, fest. 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.
1.1 Es gilt der Anwendungsbereich von EN 14511-1. 1.2 Diese Europäische Norm legt die Prüfverfahren für die Bemessung und Leistung von Luftkondi-tionierern, Flüssigkeitskühlsätzen und Wärmepumpen, die Luft, Wasser oder Sole als Wärmeträger nutzen und mit elektrisch angetriebenen Verdichtern betrieben werden, für die Raumbeheizung und -kühlung fest. Diese Prüfverfahren gelten auch für die Bemessung und Leistung von Prozess-Kühlern. Sie legt weiterhin ein Verfahren zur Prüfung und Angabe von Wärmerückgewinnungsleistungen, systemreduzierten Leistungen sowie der Leistung von Einzelgeräten von Multi-Split-Systemen für die Aufstellung im Innenraum, soweit zutreffend, fest. 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.
EN 14511-3:2018 is classified under the following ICS (International Classification for Standards) categories: 27.080 - Heat pumps; 91.140.30 - Ventilation and air-conditioning systems. The ICS classification helps identify the subject area and facilitates finding related standards.
EN 14511-3:2018 has the following relationships with other standards: It is inter standard links to EN 14511-3:2013, EN 14511-3:2022. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
EN 14511-3:2018 is associated with the following European legislation: EU Directives/Regulations: 2009/125/EC, 206/2012, 626/2011; Standardization Mandates: M/488, M/495. When a standard is cited in the Official Journal of the European Union, products manufactured in conformity with it benefit from a presumption of conformity with the essential requirements of the corresponding EU directive or regulation.
You can purchase EN 14511-3:2018 directly from iTeh Standards. The document is available in PDF format and is delivered instantly after payment. Add the standard to your cart and complete the secure checkout process. iTeh Standards is an authorized distributor of CEN standards.
Standards Content (Sample)
SLOVENSKI STANDARD
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
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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.
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
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
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
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,
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.
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.
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
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);
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
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);
p
=
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 enthalpy change ΔH can directly be used instead of the term (cp x ΔT).
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 measured cooling 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 cooling 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
4.1.3 Heat recovery capacity
The heat recovery 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
recovery 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 heat recovery capacity shall be determined using the following formula:
P = q××ρ∆cT× (3)
HR p
where
P is the heat recovery capacity, expressed in W;
HR
q is the volume flow rate, expressed in m /s ;
ρ is the density, 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.
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 (cp x ΔT).
The measured heat recovery capacity of units shall be corrected for the heat from the liquid pump as
specified in 4.1.4.3.
4.1.4 Capacity correction
4.1.4.1 General
The capacity shall include the correction due to the heat output of indoor and/or outdoor fans and/or
pumps, integrated into the unit or not as follows.
4.1.4.2 Capacity correction of fans for units without duct connection
In the case of units which are not designed for duct connection, i.e. which do not permit any external
pressure difference, and which are equipped with an integral fan, no capacity correction due to heat
provide by the fan shall apply.
4.1.4.3 Capacity correction due to indoor fan for ducted units
4.1.4.3.1 Units with integrated indoor fan
If the fan at the indoor heat exchanger is an integral part of the unit, the power input correction of the
fan, as calculated with Formula (8) (see 4.1.5.3.1) shall be:
— subtracted from the measured heating capacity
— added to the measured cooling capacity
4.1.4.3.2 Units with non-integrated indoor fan
If the fan at the indoor heat exchanger is not an integral part of the unit, the power input correction as
calculated with Formula (9) (see 4.1.5.3.2) shall be:
— added to the measured heating capacity
— subtracted from the measured cooling capacity
4.1.4.4 Capacity correction due to indoor liquid pump
4.1.4.4.1 Units with integrated liquid pump
If the liquid pump is an integrated part of the unit, the capacity correction as defined in 4.1.4.4.3 or
4.1.4.4.4 shall be:
— subtracted from the measured heating capacity.
— added to the measured cooling capacity
— subtracted from the measured heat recovery capacity
4.1.4.4.2 Units with non-integrated liquid pump
If the liquid pump is not an integral part of the unit, the capacity correction as defined in 4.1.4.4.5 shall
be:
— added to the measured heating capacity.
— subtracted from the measured cooling capacity
— added to the measured heat recovery capacity
4.1.4.4.3 Capacity correction for integrated glandless circulators
If the unit is equipped with a glandless circulator, the capacity correction is calculated using formula (4
(q x Δp ) x [(1-η)/η] (4)
e
where
q is the measured liquid flow rate, expressed in m /s.
Δp is the measured available external static pressure difference, expressed in Pa, as defined
e
in EN 14511–1:2018, 3.58;
η is the global efficiency of the pump calculated according to Annex G.
4.1.4.4.4 Capacity correction for integrated dry motor pumps
If the unit is equipped with a dry-motor pump, the capacity correction shall be calculated using Formula
(5).
(q x Δp ) x [(IE - η)/η ] (5)
e
where
q is the measured liquid volume flow rate, expressed in m /s;
Δp is the measured available external static pressure difference, expressed in Pa, as defined
e
in EN 14511–1:2018, 3.58;
IE is the motor efficiency level as defined in the EC No 640/2009 regulation;
η is the global efficiency of the pump calculated according to Annex G.
4.1.4.4.5 Capacity correction for non-integrated liquid pumps
If the measured hydraulic power according to Annex G is ≤ 300 W, the liquid pump is considered as a
glandless circulator. The capacity correction is calculated using Formula (6).
(q x (-Δp )) x [(1-η)/η] (6)
i
where
q is the measured liquid flow rate, expressed in m /s;
Δp is the measured internal static pressure difference, expressed in Pa, as defined in
i
EN 14511–1:2018, 3.59;
η is the global efficiency of the pump calculated according to Annex G.
If the measured hydraulic power according to Annex G is > 300 W, the liquid pump is considered as a
dry-motor pump. The capacity correction is calculated using Formula (7).
[q x (-Δp )] x [(IE - η) /η)] (7)
i
where
q is the liquid volume flow rate, expressed in m /s;
Δpi is the measured internal static pressure difference, expressed in Pascal, as defined in 3.59 of
EN 14511-1:2018;
IE is equal to 0,88 (the average the motor efficiency level defined in the EC No 640/2009
regulation for IE3 efficiency level);
η is the global efficiency of the pump calculated according to Annex G.
4.1.5 Effective power input
4.1.5.1 General
The effective power input shall include the correction due to power input of indoor and/or outdoor fans
and/or pumps, integrated or no to the unit as follows.
4.1.5.2 Power input correction of fans for units without duct connection
In the case of units which are not designed for duct connection, i.e. which do not permit any external
pressure differences, and which are equipped with an integral fan, the power absorbed by the fan shall
be included in the effective power absorbed by the unit.
4.1.5.3 Power input correction of fans for units with duct connection
4.1.5.3.1 Power input correction for integrated fans
If a fan is an integral part of the unit, only a fraction of the power input of the fan motor shall be
included in the effective power absorbed by the unit. The fraction that is to be excluded from the total
power absorbed by the unit shall be calculated using Formula (8):
qp× ∆
e()corr
(8)
η
where
q is the air volume flow rate, expressed in m /s and set according to 4.4.1.3 or 4.4.1.4;
Δp is the available external static pressure difference, expressed in Pa, as defined in
e (corr)
EN 14511–1:2018, 3.58 and set according to 4.4.1.3 or 4.4.1.4;
η is equal to η as declared by the fan manufacturer according to the ecodesign
target
regulation n°327/2011 for fans driven by motors between 125 W and 500 kW; otherwise
is equal to 0,3 by convention.
4.1.5.3.2 Power input correction for non-integrated fans
If no fan is provided with the unit, the proportional power input which is to be included in the effective
power absorbed by the unit shall be calculated using the Formula (9):
qp×−∆
( )
i
(9)
η
where
q is the air volume flow rate, expressed in m /s and set according to 4.4.1.3 or 4.4.1.4;
Δp is the measured internal static pressure difference, expressed in Pa, as defined in
i
EN 14511–1:2018, 3.59;
η is 0,3 by convention.
4.1.5.4 Power input correction of liquid pumps
4.1.5.4.1 Power input correction for integrated liquid pumps
When the liquid pump is integrated into the unit, it shall be connected for operation. When the liquid
pump is delivered by the manufacturer apart from the unit, it shall be connected for operation
according to the manufacturer’s instructions and be then considered as an integral part of the unit.
For an integrated liquid pump, only a fraction of the input to the pump motor shall be included in the
effective power absorbed by the unit. The fraction which is to be excluded from the total power
absorbed by the unit shall be calculated using Formula (10):
qp× ∆
e
(10)
η
where
q is the measured liquid flow rate, expressed in m /s;
Δp is the measured available external static pressure difference, expressed in Pa, as defined
e
in EN 14511–1:2018, 3.58;
η is the efficiency of the pump calculated according to Annex G.
In case the liquid pump is not able to provide any external static pressure difference, then this
correction does not apply but the correction shall be made according to 4.1.5.4.2.
4.1.5.4.2 Power input correction for non-integrated liquid pumps
If no liquid pump is provided with the unit, the proportional power input which is to be included in the
effective power absorbed by the unit shall be calculated using Formula (11):
qp×−∆
( )
i
(11)
η
where
q is the measured liquid flow rate, expressed in m /s;
Δp is the measured internal static pressure difference, expressed in Pa, as defined in
i
EN 14511–1:2018, 3.59;
η is the efficiency of the pump calculated according to Annex G.
4.1.6 Units on a distribution network of pressured water
In the case of appliances designed especially to operate on a distributing network of pressurized water
without water-pump, no correction shall be applied to the power input.
4.1.7 Units for use with remote condenser
The power from the auxiliary liquid pump of the remote condenser shall not be taken into account in
the effective power input.
4.2 Test apparatus
4.2.1 Arrangement of the test apparatus
4.2.1.1 General requirements
The test apparatus shall be designed in such a way that all requirements on adjustment of set values,
stability criteria and uncertainties of measurement according to this European Standard can be fulfilled.
4.2.1.2 Test room for the air side
The size of the test room shall be selected such that any resistance to air flow at the air inlet and air
outlet orifices of the test object is avoided. The air flow through the room shall not be capable of
initiating any short circuit between these two orifices, and therefore the velocity of the air flows
through the room at these two locations shall not exceed 1,5 m/s when the test object is switched off.
The air velocity in the room shall also not be greater than the mean velocity through the unit inlet.
Unless otherwise stated by the manufacturer, the air inlet or air outlet orifices shall be not less than 1 m
distant from the surfaces of the test room.
Any direct heat radiation by heating units in the test room onto the unit or onto the temperature
measuring points shall be avoided.
4.2.1.3 Appliances with duct connection
The connections of a ducted air unit to the test facility shall be sufficiently air tight to ensure that the
measured results are not significantly influenced by exchange of air with the surroundings.
4.2.1.4 Appliances with integrated pumps
For appliances with integrated and adjustable water or brine pumps, the pump speed shall be set at the
same time as the temperature difference.
In case of a liquid pump with several fixed speeds or with variable speed, the manufacturer shall
provide information on the settings of pump (speed or external static pressure to achieve).
4.2.1.5 Liquid chilling package for use with remote condenser
Units for use with remote condenser are tested by using a water (brine)-cooled condenser, the
characteristics of which shall enable the intended operating conditions to be achieved.
4.2.2 Installation and connection of the test object
4.2.2.1 General
The test object shall be installed and connected for the test as recommended by the manufacturer in the
installation and operation manual. The accessories provided by option are not included in the test. If a
back-up heater is provided in option or not, it shall be switched off or disconnected to be excluded from
the testing.
For single ducts, regardless of the manufacturer’s instructions, the discharge duct shall be as short and
straight as possible compatibly with minimum distance between the unit and the wall for correct air
inlet but not less than 50 cm. No accessory shall be connected to the discharge end of the duct.
For double duct units, the same requirements apply to both suction and discharge ducts, unless the
appliance is designed to be installed directly on the wall.
For multisplit systems, the test shall be performed with the system operating at a capacity ratio of 1, or
as close as possible.
When performing measures in heating mode, set the highest room temperature on the unit/system
control device; when performing measures in cooling mode, set the lowest room temperature on the
unit/system control device. If in the instructions, the manufacturer indicates a value for the
temperature set on the control device for a given rating condition, then this value shall be used.
For unit with open-type compressor the electric motor shall be supplied or specified by the
manufacturer. The compressor shall be operated at the rotational speed specified by the manufacturer.
For inverter type control units, the setting of the frequency shall be done for each rating condition. The
manufacturer shall provide in the documentation information about how to obtain the necessary data
to set the required frequencies.
If skilled personnel with knowledge of control software is required for the start of the system, the
manufacturer or the nominated agent should be in attendance when the system is being installed and
prepared for tests.
4.2.2.2 Installation of unit consisting of several parts
In the case of a unit consisting of several parts, the following installation conditions shall be complied
for the test.
a) The refrigerant lines shall be installed in accordance with the manufacturer's instructions. The
length of the lines shall be 5 m except if the con
...
The EN 14511-3:2018 standard provides a comprehensive framework for the testing methods applicable to air conditioners, liquid chilling packages, and heat pumps that are electrically driven, focusing on their performance and efficiency for space heating and cooling applications, as well as process chillers. This standard is crucial for ensuring that products meet specific performance criteria and operate efficiently in various environments. The scope of this standard clearly outlines the testing procedures for systems using air, water, or brine as heat transfer mediums, establishing a benchmark for compliance and performance assessment. It also emphasizes the importance of measuring recovery heat performance, which is essential in the context of energy efficiency and sustainability. This is increasingly relevant in today's market, where energy consumption is a significant concern. A notable strength of the EN 14511-3:2018 standard is its comprehensive nature, as it not only addresses standalone units but also incorporates provisions for multi-split systems and modular configurations. This broadened approach ensures that manufacturers can fully assess the performance of combined systems, facilitating more accurate performance ratings in the context of modern HVAC solutions. Additionally, the standard provides specific guidelines for the measurement of heat recovery capabilities and system-reduced performances, making it an indispensable tool for manufacturers looking to optimize their products for both energy efficiency and environmental impact. By focusing on detailed performance metrics, this standard aids in the development of high-quality products that meet stringent regulatory requirements. In summary, the relevance of the EN 14511-3:2018 standard cannot be overstated, as it serves as a vital reference for manufacturers and testing laboratories alike. Its clear and structured approach to standardized testing methods ensures that stakeholders can rely on precise performance evaluations, which are critical for advancing the efficiency and effectiveness of air conditioning and heat pump technologies in today’s energy-conscious marketplace.
SIST EN 14511-3:2018は、空調機器、液体冷却パッケージ、暖房および冷却用の熱ポンプに関する重要な試験方法を提供する標準であり、その適用範囲は広範囲にわたります。この標準は、電動コンプレッサーを使用し、空気、水、または地中熱を熱媒体として利用する機器の性能および設計に関する検証方法を定めています。 この標準の大きな強みは、業界の要求に応じた具体的な試験手法を明確に示すことであり、これにより空調技術の信頼性向上と性能評価が容易になります。特に、空間暖房および冷却に必要な性能の基準を設定している点は、この標準の離れた特徴です。また、プロセス用冷却装置に対する性能基準も適用されるため、製造業やプロセス業界においても価値があります。 さらに、SIST EN 14511-3:2018は、室内設置機器と屋外設置機器の性能を分けて評価することを可能にし、特にモジュラー型マルチスプリットシステムにおける熱回収性能の評価を行う点でも注目に値します。このように、様々な設置条件に対応した柔軟な評価方法は、多様な施行ニーズを持つ市場において特に関連性が高いと言えます。 この標準が提供する明確な試験フレームワークは、エネルギー効率や環境影響を考慮した設計の必要性が高まる中で、業界関係者にとって必須の指針となるでしょう。
La norme EN 14511-3:2018 joue un rôle essentiel dans le domaine des climatiseurs, des packages de refroidissement et des pompes à chaleur utilisées pour le chauffage et le refroidissement des espaces, ainsi que pour le refroidissement des processus. Son étendue est clairement définie, assurant la standardisation des méthodes d'essai pour évaluer la performance et la capacité des équipements fonctionnant avec des compresseurs électriques. Parmi les points forts de cette norme, on remarque qu'elle couvre des procédures d'essai qui s'appliquent à divers types de systèmes, y compris ceux utilisant l'air, l'eau ou la solution comme fluide caloporteur. Cela garantit que les fabricants et les utilisateurs disposent de critères d'évaluation uniformes, facilitant la comparaison des performances entre différents équipements et marques. De plus, la norme met l'accent sur l'évaluation des performances des systèmes de récupération de chaleur, ainsi que sur les performances des unités individuelles des systèmes multi-split, ce qui est d'une grande pertinence dans le contexte actuel où l'efficacité énergétique est de plus en plus demandée. La capacité de mesurer séparément les performances des dispositifs intérieurs et extérieurs des systèmes modulaires multi-split renforce également sa pertinence, car cela permet une évaluation plus précise de l’efficacité globale du système installé. Ainsi, la norme EN 14511-3:2018 s’avère cruciale non seulement pour la conformité réglementaire, mais aussi pour l’optimisation des performances énergétiques dans le secteur du chauffage et du refroidissement, répondant ainsi aux enjeux contemporains en matière d'efficacité énergétique et de durabilité.
Die Norm EN 14511-3:2018 ist ein wesentlicher Bestandteil der Regulierung von Luftkonditionierern, Flüssigkeitskühlsätzen und Wärmepumpen, die für die Raumbeheizung und -kühlung sowie für Prozesskühler eingesetzt werden. Der umfassende Anwendungsbereich dieser Norm, der in Abschnitt 1.1 festgelegt ist, stellt sicher, dass sie für eine Vielzahl von Anwendungen im Bereich der klimatisierten Systeme Gültigkeit hat. Es werden Prüfverfahren definiert, die speziell auf die Bemessung und Leistung von Geräten abzielen, die elektrisch angetriebene Verdichter nutzen, und dies trägt zur Standardisierung in der Branche bei. Ein herausragendes Merkmal der EN 14511-3:2018 ist die detaillierte Festlegung der Testmethoden, die eine objektive Messung der Effizienz und Leistung von Anlagen ermöglichen. Diese Testverfahren gelten auch für Prozesskühler und ermöglichen somit eine breite Anwendbarkeit auf verschiedene Systeme und Technologien. Durch die Standardisierung dieser Verfahren wird eine Vergleichbarkeit zwischen verschiedenen Herstellern und Modellen erreicht, was für die Entscheidungsfindung der Verbraucher von großer Bedeutung ist. Ein weiterer Pluspunkt ist das Verfahren zur Prüfung der Wärmerückgewinnungsleistungen sowie der systemreduzierten Leistungen von Geräten in Multi-Split-Systemen. Hierdurch wird die Möglichkeit geschaffen, die Effizienz und Leistung von komplexen Systemen, die aus mehreren Komponenten bestehen, separat zu bewerten. Dies ist besonders relevant für die moderne Gebäudetechnik, in der immer häufiger auf modulare Systeme zurückgegriffen wird. Die Norm erfüllt somit nicht nur die Anforderungen an die Leistungsbewertung, sondern fördert auch eine nachhaltige Nutzung von Energie durch die Berücksichtigung von Wärmerückgewinnungsleistungen. Sie ist daher nicht nur von technischer Relevanz, sondern spielt auch eine entscheidende Rolle im Kontext der Energieeffizienz und Umweltfreundlichkeit. Zusammenfassend bietet die EN 14511-3:2018 eine umfassende und gut definierte Grundlage für die Testmethoden von Luftkonditionierern und ähnlichen Geräten, die sowohl für die Industrie als auch für Verbraucher von zentraler Bedeutung ist. Die Norm ist ein bedeutendes Instrument zur Förderung von Effizienz und Nachhaltigkeit in der Klimatisierungstechnik.
SIST EN 14511-3:2018 표준은 공조기기, 액체 냉각 패키지 및 공간 난방 및 냉방, 프로세스 냉각용 전기 구동 압축기를 사용하는 열펌프의 시험 방법을 규정하는 중요한 문서입니다. 이 표준의 적용 범위는 EN 14511-1의 적용 범위를 따르며, 공기, 물, 또는 기타 냉매를 사용하는 기기들의 성능과 평가를 위한 시험 절차를 명확히 하고 있습니다. 이 표준의 주요 강점 중 하나는 다양한 시스템의 성능을 평가할 수 있는 포괄적인 시험 방법을 제공한다는 점입니다. 특히, 중앙 난방 및 냉방 시스템뿐 아니라 프로세스 냉각기 및 다중 분할 시스템의 성능을 독립적으로 평가할 수 있는 절차가 마련되어 있어, 사용자에게 보다 정확한 성능 정보를 제공합니다. 또한, 실내 장치와 외부 장치의 성능을 개별적으로 측정하고 명시할 수 있는 절차는 설치 환경과 운전 조건에 따른 효율성을 높이는 데 중요한 역할을 합니다. 또한, SIST EN 14511-3:2018 표준은 열 회수 성능 및 시스템 축소 성능에 대한 시험 방법을 정의하여, 에너지 효율성을 고려한 설계에 기여합니다. 이는 최신 에너지 기준 및 규제에 부합하는 솔루션을 제공하며, 사용자가 보다 지속 가능한 방식으로 기기를 활용할 수 있도록 돕습니다. 이 표준의 관련성은 특히 에너지 효율성 및 환경 친화적 운영이 점점 중요해지는 현재의 산업 트렌드에 맞춰 기기 성능을 효과적으로 검사하고 검증할 수 있는 가능성을 제공함으로써 강조됩니다. 따라서 SIST EN 14511-3:2018은 공조 및 냉각 시스템의 신뢰성을 높이고, 산업 전반의 품질 기준을 강화하는 데 중요한 역할을 합니다.
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