Gas-fired endothermic engine driven heat pumps - Part 3: Test conditions

1.1   Scope of EN 16905 series
This European Standard specifies the requirements, test methods and test conditions for the rating and performance calculation of gas-fired endothermic engine driven heat pumps for heating and/or cooling mode including the engine heat recovery, to be used outdoor.
This European Standard is to be used in conjunction with:
a)   the terms and definitions, EN 16905-1:202x;
b)   the safety, EN 16905-2:202x;
c)   the requirements, test conditions and test methods, EN 16905-4:202x;
d)   the calculation of seasonal performances in heating and cooling mode, EN 16905‐5:2022.
e)   the heat pump standards, EN 14511‐2:2022, EN 14511-3:2022 and EN 14825:2022.
This European Standard only applies to appliances with a maximum heat input (based on net calorific value) not exceeding 70 kW at standard rating conditions.
This European Standard only applies to appliances under categories I2H, I2E, I2Er, I2R, I2E(S)B, I2L, I2LL, I2ELL, I2E(R)B, I2ESi, I2E(R), I3P, I3B, I3B/P, II2H3+, II2Er3+, II2H3B/P, II2L3B/P, II2E3B/P, II2ELL3B/P, II2L3P, II2H3P, II2E3P and II2Er3P according to EN 437:2021.
This European Standard only applies to appliances having:
a)   gas fired endothermic engines under the control of fully automatic control systems;
b)   closed system refrigerant circuits in which the refrigerant does not come into direct contact with the fluid to be cooled or heated;
c)   where the temperature of the heat transfer fluid of the heating system (heating water circuit) does not exceed 105 °C during normal operation;
d)   where the maximum operating pressure in the
1)   heating water circuit (if installed) does not exceed 6 bar;
2)   domestic hot water circuit (if installed) does not exceed 10 bar.
This European Standard applies to appliances only when used for space heating or space cooling or for refrigeration, with or without heat recovery.
This European Standard is applicable to appliances that are intended to be type tested. Requirements for appliances that are not type tested would need to be subject to further consideration.
1.2   Scope of EN 16905 3
This part of the EN 16905 series specifies the test conditions for the rating of energy parameters of gas-fired endothermic engine driven heat pumps for heating and/or cooling mode including the engine heat recovery.

Gasbefeuerte endothermische Motor-Wärmepumpen - Teil 3: Prüfbedingungen

1.1   Anwendungsbereich der Normenreihe EN 16905
Diese Europäische Norm legt die Anforderungen, Prüfverfahren und Prüfbedingungen für die Bewertung und Leistungsberechnung von gasbefeuerten endothermischen Motor Wärmepumpen fest, die für den Heiz  und/oder Kühlbetrieb einschließlich der Motor Wärmerückgewinnung vorgesehen und im Freien zu verwenden sind.
Diese Europäische Norm ist anzuwenden in Verbindung mit:
a)   den Begriffen nach EN 16905-1:202x;
b)   der Sicherheit nach EN 16905-2:202x;
c)   den Anforderungen, Prüfbedingungen und Prüfverfahren nach EN 16905 4:202x;
d)   der Berechnung der saisonalen Effizienzkennzahlen im Heiz  und Kühlbetrieb nach EN 16905-5:2022;
e)   den Normen zu Wärmepumpen, EN 14511-2:2022, EN 14511-3:2022 und EN 14825:2022.
Diese Europäische Norm gilt ausschließlich für Geräte mit einer Höchst Wärmebelastung von 70 kW (bezogen auf den Heizwert [NCV; en: net calorific value]) bei Norm Nennbedingungen.
Diese Europäische Norm gilt in Übereinstimmung mit EN 437:2021 ausschließlich für Geräte der Kategorien I2H, I2E, I2Er, I2R, I2E(S)B, I2L, I2LL, I2ELL, I2E(R)B, I2ESi, I2E(R), I3P, I3B, I3B/P, II2H3+, II2Er3+, II2H3B/P, II2L3B/P, II2E3B/P, II2ELL3B/P, II2L3P, II2H3P, II2E3P und II2Er3P.
Diese Europäische Norm gilt ausschließlich für Geräte mit:
a)   endothermischen Gasmotoren, die durch vollständig automatisierte Regelungen gesteuert werden;
b)   geschlossenen Kühlmittelkreisläufen, in denen das Kühlmittel nicht direkt mit dem zu kühlenden oder zu erwärmenden Fluid in Berührung kommt;
c)   einer Temperatur des Wärmeübertragungsmediums im Heizsystem (Heizwasserkreislauf), die im Normalbetrieb 105 °C nicht überschreitet;
d)   einem Höchstbetriebsdruck im
1)   Heizwasserkreislauf (falls installiert), der 6 bar nicht überschreitet;
2)   Warmwasserbereitungskreislauf für Nutzwasser (falls installiert), der 10 bar nicht überschreitet.
Diese Europäische Norm gilt ausschließlich für Geräte, die zur Raumbeheizung oder  kühlung oder zur Kälteerzeugung mit oder ohne Wärmerückgewinnung angewendet werden.
Diese Europäische Norm gilt für Geräte, die einer Typprüfung zu unterziehen sind. Anforderungen an nicht typgeprüfte Geräte wären ein Thema für weitere Überlegungen.
1.2   Anwendungsbereich von EN 16905-3
Dieser Teil der Normenreihe EN 16905 legt die Prüfbedingungen für die Einstufung von Energieparametern von gasbefeuerten endothermischen Motor Wärmepumpen fest, die für den Heiz  und/oder Kühlbetrieb einschließlich der Motor Wärmerückgewinnung vorgesehen sind.

Pompes à chaleur à moteur endothermique alimenté au gaz - Partie 3 : Conditions d'essai

1.1   Domaine d'application de la série EN 16905
La présente Norme européenne spécifie les exigences, les méthodes d'essai et les conditions d'essai applicables aux calculs des caractéristiques et des performances des pompes à chaleur à moteur endothermique alimenté au gaz pour les modes chauffage et/ou refroidissement, y compris la récupération de la chaleur du moteur, destinées à être utilisées à l'extérieur.
La présente Norme européenne doit être utilisée conjointement avec :
a)   les termes et définitions de l'EN 16905-1:202x ;
b)   la sécurité de l'EN 16905-2:202x ;
c)   les exigences, les conditions d'essais et les méthodes d'essai de l'EN 16905-4:202x ;
d)   le calcul des performances saisonnières en modes chauffage et refroidissement de l'EN 16905-5:2022 ;
e)   les normes relatives aux pompes à chaleur de l'EN 14511-2:2022, l'EN 14511-3:2022 et l'EN 14825:2022.
La présente Norme européenne s'applique uniquement aux appareils dont le débit calorifique maximal (dérivé du pouvoir calorifique inférieur) ne dépasse pas 70 kW dans les conditions de performance nominale.
La présente Norme européenne se limite également aux appareils classés dans les catégories I2H, I2E, I2Er, I2R, I2E(S)B, I2L, I2LL, I2ELL, I2E(R)B, I2ESi, I2E(R), I3P, I3B, I3B/P, II2H3+, II2Er3+, II2H3B/P, II2L3B/P, II2E3B/P, II2ELL3B/P, II2L3P, II2H3P, II2E3P et II2Er3P de l'EN 437:2021.
La présente Norme européenne ne s'applique qu'aux appareils :
a)   équipés de moteurs endothermiques alimentés au gaz régulés par des systèmes de régulation entièrement automatisés ;
b)   comportant des circuits fermés de réfrigérant dans lesquels le réfrigérant n'entre pas en contact direct avec le fluide à refroidir ou à chauffer ;
c)   dans lesquels la température du fluide caloporteur du système de chauffage (circuit d'eau de chauffage) ne dépasse pas 105 °C dans les conditions normales de fonctionnement ;
d)   dans lesquels la pression maximale de fonctionnement :
1)   ne dépasse pas 6 bar dans le circuit d'eau de chauffage (le cas échéant) ;
2)   ne dépasse pas 10 bar dans le circuit d'eau chaude sanitaire (le cas échéant).
La présente Norme européenne s'applique aux appareils utilisés uniquement pour le chauffage de locaux, le refroidissement de locaux ou la réfrigération, avec ou sans récupération de chaleur.
La présente Norme européenne s'applique aux appareils destinés à être soumis à des essais de type. Les exigences relatives aux appareils non soumis à des essais de type pourraient appeler des considérations supplémentaires.
1.2   Domaine d'application de l'EN 16905-3
La présente partie de la série EN 16905 spécifie les conditions d'essai applicables à l'évaluation des paramètres énergétiques des appareils à moteur endothermique alimenté au gaz utilisés en mode chauffage et/ou refroidissement, y compris la récupération de chaleur du moteur.

Toplotna črpalka s plinsko gnanim motorjem z notranjim zgorevanjem - 3. del: Preskusni pogoji

General Information

Status
Published
Public Enquiry End Date
02-Dec-2023
Publication Date
13-Feb-2025
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
12-Feb-2025
Due Date
19-Apr-2025
Completion Date
14-Feb-2025

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SLOVENSKI STANDARD
01-marec-2025
Nadomešča:
SIST EN 16905-3:2018
Toplotna črpalka s plinsko gnanim motorjem z notranjim zgorevanjem - 3. del:
Preskusni pogoji
Gas-fired endothermic engine driven heat pumps - Part 3: Test conditions
Gasbefeuerte endothermische Motor-Wärmepumpen - Teil 3: Prüfbedingungen
Pompes à chaleur à moteur endothermique alimenté au gaz - Partie 3 : Conditions
d'essai
Ta slovenski standard je istoveten z: EN 16905-3:2024
ICS:
27.080 Toplotne črpalke Heat pumps
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN 16905-3
EUROPEAN STANDARD
NORME EUROPÉENNE
December 2024
EUROPÄISCHE NORM
ICS 27.080 Supersedes EN 16905-3:2017
English Version
Gas-fired endothermic engine-driven heat pumps - Part 3:
Test conditions
Pompes à chaleur à moteur endothermique alimenté Gasbefeuerte endothermische Motor-Wärmepumpen -
au gaz - Partie 3 : Conditions d'essai Teil 3: Prüfbedingungen
This European Standard was approved by CEN on 18 November 2024.

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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye 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
© 2024 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 16905-3:2024 E
worldwide for CEN national Members.

Contents Page
European foreword . 3
Introduction . 4
1 Scope . 5
1.1 Scope of EN 16905 series . 5
1.2 Scope of EN 16905-3 . 5
2 Normative references . 6
3 Terms and definitions . 6
4 Test conditions . 6
4.1 Environmental conditions and electrical power supply requirements . 6
4.2 Rating conditions in cooling and in heating . 7
4.3 Rating conditions for engine heat recovery . 16
Bibliography . 17
European foreword
This document (EN 16905-3:2024) has been prepared by Technical Committee CEN/TC 299 “Gas-fired
sorption appliances, indirect fired sorption appliances, gas-fired endothermic engine heat pumps and
domestic gas-fired washing and drying appliances”, the secretariat of which is held by UNI.
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 June 2025, and conflicting national standards shall be
withdrawn at the latest by June 2025.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN 16905-3:2017.
EN 16905-3:2017:
— Tables 6; 8; 9; 10; 12; 13; 14: addition of test performed with fixed flow rate and variable flow rate;
— Tables 8; 9; 10; 12; 13; 14: modification of the term indicating temperature applications in heating;
— Table 6: addition of a new test conditions in case of brine = 10°C and brine = −5°C.
This document has been prepared under a standardization request addressed to CEN by the European
Commission. The Standing Committee of the EFTA States subsequently approves these requests for its
Member States.
Any feedback and questions on this document should be directed to the users’ national standards body.
A complete listing of these bodies can be found on the CEN website.
According to the CEN-CENELEC Internal Regulations, the national standards organisations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland,
Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of
North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and the
United Kingdom.
Introduction
The GEHP appliances having their condenser cooled by air and by the evaporation of external additional
water are not covered by this document.
Single split and multi-split systems are covered by this document.
The GEHP appliances can have one or more primary or secondary functions.
This document specifies the requirements, test methods and test conditions concerning, in particular,
the construction, safety, fitness for purpose, and rational use of energy, for the rating and performance
calculation of air conditioners and heat pumps using either air, water or brine as heat transfer media,
with gas-fired endothermic engine driven compressors when used for space heating, cooling and
refrigeration, hereafter referred to as “GEHP appliance”.
EN 16905 series comprises the following parts under the general title, Gas-fired endothermic engine
driven heat pumps:
— Part 1: Terms and definitions;
— Part 2: Safety;
— Part 3: Tests conditions;
— Part 4: Tests methods;
— Part 5: Calculation of seasonal performances in heating and cooling mode.
This document has been prepared to address the test conditions.
1 2
EN 16905-1:2023, EN 16905-2:— , EN 16905-4:— are linked to the Energy Related Products Directive
(2009/125/EC) in terms of tests conditions, tests methods and seasonal performances calculation
2 1
methods under Mandate M/535; (see EN 16905-4:— , Annex ZA and EN 16905-2:—, Annexes ZB and
ZC).
These documents will be reviewed whenever new mandates could apply.

To be published. Stage at the time of publication: FprEN 16905-2:2023.
To be published. Stage at the time of publication: FprEN 16905-4:2023.
1 Scope
1.1 Scope of EN 16905 series
This series specifies the requirements, test methods and test conditions for the rating and performance
calculation of gas-fired endothermic engine driven heat pumps for heating and/or cooling mode
including the engine heat recovery, to be used outdoor.
This series is used in conjunction with:
a) the terms and definitions, EN 16905-1:2023;
b) the safety, EN 16905-2:— ;
c) the requirements, test conditions and test methods, EN 16905-4:— ;
d) the calculation of seasonal performances in heating and cooling mode, EN 16905-5:2022;
e) the heat pump standards, EN 14511-2:2022, EN 14511-3:2022 and EN 14825:2022.
This series only applies to appliances with a maximum heat input (based on net calorific value) not
exceeding 70 kW at standard rating conditions.
This series only applies to appliances under categories I , I , I , I , I , I , I , I , I , I ,
2H 2E 2Er 2R 2E(S)B 2L 2LL 2ELL 2E(R)B 2ESi
I ), I , I , I , II , II , II , II , II , II , II , II , II and II according to
2E(R 3P 3B 3B/P 2H3+ 2Er3+ 2H3B/P 2L3B/P 2E3B/P 2ELL3B/P 2L3P 2H3P 2E3P 2Er3P
EN 437:2021.
This series only applies to appliances having:
a) gas-fired endothermic engines under the control of fully automatic control systems;
b) closed-system refrigerant circuits in which the refrigerant does not come into direct contact with
the fluid to be cooled or heated;
c) where the temperature of the heat transfer fluid of the heating system (heating water circuit) does
not exceed 105 °C during normal operation;
d) where the maximum operating pressure in the
1) heating water circuit (if installed) does not exceed 6 bar;
2) domestic hot water circuit (if installed) does not exceed 10 bar.
This series applies to appliances only when used for space heating or space cooling or for refrigeration,
with or without heat recovery.
This series is applicable to appliances that are intended to be type tested. Requirements for appliances
that are not type tested would need to be subject to further consideration.
1.2 Scope of EN 16905-3
This part of the EN 16905 series specifies the test conditions for the rating of energy parameters of gas-
fired endothermic engine driven heat pumps for heating and/or cooling mode including the engine heat
recovery.
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 16905-1, Gas-fired endothermic engine driven heat pumps — Part 1: Terms and definitions
EN 16905-4:—, Gas-fired endothermic engine driven heat pumps — Part 4: Test methods
3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN 16905-1 apply.
ISO and IEC maintain terminology databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https://www.iso.org/obp/
— IEC Electropedia: available at https://www.electropedia.org/
4 Test conditions
4.1 Environmental conditions and electrical power supply requirements
The tests shall be carried out under the environmental conditions specified in Table 1 or Table 2
depending on the location of the unit.
For all units, electrical power voltage and frequency shall be stated in the instructions.
Table 1 — Environmental conditions and electrical power supply requirements for units
designed for installation indoors
Type Measured quantities Rating test
Water-to-water and brine-to-water
Dry bulb temperature 15 °C to 30 °C
a
units
Water-to-air and brine-to-air units
with duct connection on the air inlet Dry bulb temperature 15 °C to 30 °C
and outlet side
Water-to-air and brine-to-air units
Dry bulb temperature
Inlet temperature
without duct connection on the air
(see Table 6 and Table 7)
Wet bulb temperature
inlet side
Air-to-water units with duct
connection on the air inlet and outlet Dry bulb temperature 15 °C to 30 °C
side
Dry bulb temperature
Air-to-water units without duct Inlet temperature
connection on the air inlet side (see Tables 12 to 15)
Wet bulb temperature
Air-to-air units with duct connection
on the outdoor air inlet and outlet Dry bulb temperature 15 °C to 30 °C
side
To be published. Stage at the time of publication: FprEN 16905-4:2023.
Type Measured quantities Rating test
Air-to-air units without duct
Dry bulb temperature
As inlet temperature
connection on the outdoor air inlet
see Table 3 and Table 4
Wet bulb temperature
and outlet side
All appliances Voltage Rated voltage
All appliances Frequency Rated frequency
a
Rating conditions for water to water or water to brine appliances can be extended to brine to
water and brine to brine appliances respectively (e.g. for reversible applications).
Table 2 — Environmental conditions and electrical power supply requirements for units
designed for installation outdoors
Type Measured quantities Rating test
Inlet temperature
Dry bulb temperature
Air-to-water units (see Tables 12 to 14 and
Wet bulb temperature
Table 15)
Dry bulb temperature Inlet temperature
Water-to-air units
Wet bulb temperature (see Table 6 and Table 7)
Water-to-water and brine-to-water
Dry bulb temperature 15 °C to 30 °C
a
operating in cooling mode
Water-to-water and brine-to-water
Dry bulb temperature 0 °C to 7 °C
operating in heating mode
Air-to-air units with duct connection Dry bulb temperature Inlet temperature
on the indoor air inlet and outlet side Wet bulb temperature (see Table 3 and Table 4)
All appliances Voltage Rated voltage
All appliances Frequency Rated frequency
a
Rating conditions for water to water or water to brine appliances can be extended to brine to
water an
...

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