SIST EN 16905-5:2018
(Main)Gas-fired endothermic engine driven heat pumps - Part 5: Calculation of seasonal performances in heating and cooling mode
Gas-fired endothermic engine driven heat pumps - Part 5: Calculation of seasonal performances in heating and cooling mode
1.1 Scope of prEN 16905
This European Standard specifies the requirements, test methods and test conditions 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”.
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.
This European Standard only applies to appliances having:
- gas fired endothermic engines under the control of fully automatic control systems;
- closed system refrigerant circuits in which the refrigerant does not come into direct contact with the fluid to be cooled or heated;
- where the temperature of the heat transfer fluid of the heating system (heating water circuit) does not exceed 105 °C during normal operation;
- where the maximum operating pressure in the
- heating water circuit (if installed) does not exceed 6 bar
- 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.
The appliances having their condenser cooled by air and by the evaporation of external additional water are not covered by this European Standard.
Packaged units, single split and multisplit systems are covered by this European Standard. Single duct and double duct units are covered by this European Standard.
The above appliances can have one or more primary or secondary functions.
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.
In the case of packaged units (consisting of several parts), this European Standard applies only to those designed and supplied as a complete package.
NOTE All the symbols given in this text are used regardless of the language used.
1.2 Scope of prEN 16905-5
This part of prEN 16905 specifies the calculation of seasonal performance factor for heating and/or cooling mode including the engine heat recovery.
Gasbefeuerte endothermische Motor-Wärmepumpen - Teil 5: Berechnung der saisonalen Effizienzkennzahlen im Heiz- und Kühlmodus
1.1 Anwendungsbereich der Normenreihe prEN 16905
Diese Europäische Norm legt die Anforderungen, Prüfverfahren und Prüfbedingungen für die Bewertung und Leistungsberechnung von Luftkonditionierern und Wärmepumpen mit gasbefeuerten endothermischen motor-getriebenen Verdichtern fest, die entweder Luft, Wasser oder Sole als Wärmeübertragungsmedium verwenden und zur Heizung, Kühlung und Kältetechnik dienen, nachfolgend als "GEHP Gerät" bezeichnet.
Diese Europäische Norm gilt ausschließlich für Geräte mit einer maximalen Wärmebelastung von 70 kW (bezogen auf den Heizwert [NCV; en: net calorific value]) bei Norm-Nennbedingungen.
Diese Europäische Norm gilt entsprechend der EN 437 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:
- endothermischen Gasmotoren, die durch vollständig automatisierte Regelungen gesteuert werden;
- geschlossenen Kühlkreislaufsystemen, in denen das Kühlmittel nicht direkt mit der zu kühlenden oder zu erwärmenden Flüssigkeit in Berührung kommt;
- einer Temperatur des Wärmeübertragungsmediums im Heizsystem (Heizwasserkreis), die im normalen Betrieb 105 °C nicht überschreitet:
- einen höchsten Betriebsdruck im:
- Heizungswasserkreislauf (falls installiert), der 6 bar nicht überschreitet;
- Trinkwasserkreislauf (falls installiert), der 10 bar nicht überschreitet.
Diese Europäische Norm gilt ausschließlich für Geräte, die zur Raumheizung oder -kühlung oder zur Kälteerzeugung mit oder ohne Wärmerückgewinnung angewendet werden.
In dieser Europäischen Norm werden keine Geräte behandelt, deren Kondensator mit Luft oder durch Verdampfung von zusätzlichem Wasser auf der Außenseite gekühlt wird.
In dieser Europäischen Norm werden Systeme, Single Split und Multi Split Systeme behandelt. Auch Einkanal und Zweikanal Einheiten werden in der vorliegenden Europäischen Norm behandelt.
Die vorstehend aufgeführten Geräte können einen oder mehrere Primär- oder Sekundärfunktion(en) haben.
Diese Europäische Norm gilt für Geräte, die einer Typprüfung zu unterziehen sind. Anforderungen an nicht typgeprüfte Geräte sollten ein Thema für weitere Überlegungen sein.
Bei (aus mehreren Teilen bestehenden) Verpackungseinheiten gilt die vorliegende Europäische Norm nur, wenn diese Einheiten als vollständige Baugruppe ausgelegt und geliefert werden.
ANMERKUNG Sämtliche in diesem Text angegebenen Symbole werden unabhängig von der jeweilig verwendeten Sprache angewendet.
1.2 Anwendungsbereich der prEN 16905-5
Dieser Teil der prEN 16905 legt die Berechnung der Jahresarbeitszahl im Heiz und/oder Kühlbetrieb einschließlich der Wärmerückgewinnung des Motors fest.
Pompes à chaleur à moteur endothermique alimenté au gaz -Partie 5 : Calcul des performances saisonnières en modes chauffage et refroidissement
1.1 Domaine d'application de la série prEN 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 climatiseurs et pompes à chaleur utilisant de l'air, de l'eau ou de l'eau glycolée comme fluide caloporteur, munis de compresseurs à moteur endothermique alimenté au gaz, et destinés à des applications de chauffage, de refroidissement et de réfrigération de locaux (ci-après désignés par l'appellation « appareils GEHP »).
Cette norme 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.
Elle 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.
Cette norme ne s'applique qu'aux appareils :
équipés de moteurs endothermiques alimentés au gaz régulés par des systèmes de régulation entièrement automatisés ;
comportant des circuits fermés de réfrigérant dans lesquels le réfrigérant n'entre pas en contact direct avec le fluide à refroidir ou à chauffer ;
- 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 ;
- dans lesquels la pression maximale de fonctionnement
- ne dépasse pas 6 bar dans le circuit d'eau de chauffage (le cas échéant) et
- ne dépasse pas 10 bar dans le circuit d'eau chaude sanitaire (le cas échéant).
Cette norme s'applique aux appareils utilisés uniquement pour le chauffage de locaux, le refroidissement de locaux ou la réfrigération, avec ou sans récupération de chaleur.
Elle ne couvre pas les appareils dont le condenseur est refroidi par air et par évaporation de l'eau d'un circuit supplémentaire externe.
Cette norme couvre les systèmes autonomes, mono-split et multi-split. Les installations à simple conduit et à double conduit entrent également dans son domaine d'application.
Les appareils ci-dessus peuvent assurer une ou plusieurs fonctions principales ou secondaires.
Cette norme 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.
Dans le cas des appareils autonomes (constitués de plusieurs éléments), la norme ne s'applique qu'aux appareils conçus et fournis sous forme d'ensemble complet.
NOTE Il faut employer tous les symboles spécifiés dans le présent document, quelle que soit la langue utilisée.
1.2 Domaine d'application de la présente Partie 5 de la norme prEN 16905-5
La présente partie de la norme prEN 16905 décrit le calcul du facteur de performance saisonnière pour le mode chauffage et/ou refroidissement, y compris la récupération de chaleur du moteur.
Toplotna črpalka s plinsko gnanim motorjem z notranjim zgorevanjem - 5. del: Izračun sezonske zmogljivosti za ogrevanje in hlajenje
Ta evropski standard določa zahteve, preskusne metode in preskusne pogoje za ocenjevanje in izračun zmogljivosti klimatskih naprav in toplotnih črpalk, ki uporabljajo zrak, vodo ali slanico kot medij za prenos toplote, s kompresorji s plinsko gnanim motorjem z notranjim zgorevanjem, kadar se uporabljajo za segrevanje, ohlajanje in hlajenje, v nadaljevanju »naprava GEHP«.
Ta evropski standard se uporablja samo za naprave z največjo grelno močjo (na podlagi neto kalorične vrednosti), ki ne presega 70 kW pri standardnih pogojih za določanje moči.
Ta evropski standard se uporablja samo za naprave iz kategorij 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 in II2Er3P v skladu s standardom EN 437.
Ta evropski standard se uporablja samo za naprave:
– s plinsko gnanimi motorji z notranjim zgorevanjem, ki jih nadzirajo povsem samodejni krmilni sistemi;
– s hladilnimi tokokrogi z zaprtim sistemom, pri katerih hladilno sredstvo ne pride v neposreden stik s tekočino, ki se ohlaja ali segreva;
– pri katerih temperatura tekočine za prenos toplote ogrevalnega sistema (ogrevalno vodovodno omrežje) pri običajnem delovanju ne presega 105 °C;
– pri katerih najvišji obratovalni tlak v:
– ogrevalnem vodovodnem omrežju (če je nameščeno) ne presega 6 barov;
– gospodinjskem ogrevalnem vodovodnem omrežju (če je nameščeno) ne presega 10 barov.
Ta evropski standard se uporablja za naprave samo, če se uporablja za segrevanje, ohlajanje ali hlajenje prostora z rekuperacijo toplote ali brez nje.
Ta evropski standard ne zajema naprav, katerih kondenzator se hladi z zrakom in izhlapevanjem zunanje dodatne vode.
Ta evropski standard zajema pakirane enote in sisteme z enim ali več razcepi. Ta evropski standard zajema enote z enojnim in dvojnim vodom.
Zgornje naprave imajo lahko eno ali več primarnih ali sekundarnih funkcij.
Ta evropski standard se uporablja za vse naprave, za katere se izvaja tipski preskus. Zahteve za naprave, za katere se ne izvaja tipski preskus, bi bilo treba dodatno proučiti.
Pri pakiranih enotah (sestavljenih iz več kosov) se ta evropski standard uporablja samo za tiste, ki so projektirane in dostavljene kot celoten paket.
OPOMBA Vsi simboli v tem besedilu se uporabljajo ne glede na uporabljeni jezik.
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Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Gasbefeuerte endothermische Motor-Wärmepumpen - Teil 5: Berechnung der saisonalen Effizienzkennzahlen im Heiz- und KühlmodusPompes à chaleur à moteur endothermique alimenté au gaz -Partie 5 : Calcul des performances saisonnières en modes chauffage et refroidissementGas-fired endothermic engine driven heat pumps - Part 5: Calculation of seasonal performances in heating and cooling mode27.080Heat pumpsICS:Ta slovenski standard je istoveten z:EN 16905-5:2017SIST EN 16905-5:2018en,fr,de01-januar-2018SIST EN 16905-5:2018SLOVENSKI
STANDARD
SIST EN 16905-5:2018
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 16905-5
March
t r s y ICS
t yä r z r English Version
Gasæfired endothermic engine driven heat pumps æ Part
wã Calculation of seasonal performances in heating and cooling mode Pompes à chaleur à moteur endothermique alimenté au gaz æPartie
w ã Calcul des performances saisonnières en modes chauffage et refroidissement
Gasbefeuerte endothermische MotoræWärmepumpen æ Teil
wã Berechnung der saisonalen Effizienzkennzahlen im Heizæ und Kühlmodus This European Standard was approved by CEN on
{ January
t r s yä
egulations which stipulate the conditions for giving this European Standard the status of a national standard without any alterationä Upætoædate lists and bibliographical references concerning such national standards may be obtained on application to the CENæCENELEC Management Centre or to any CEN memberä
translation under the responsibility of a CEN member into its own language and notified to the CENæCENELEC Management Centre has the same status as the official versionsä
CEN members are the national standards bodies of Austriaá Belgiumá Bulgariaá Croatiaá Cyprusá Czech Republicá Denmarká Estoniaá Finlandá Former Yugoslav Republic of Macedoniaá Franceá Germanyá Greeceá Hungaryá Icelandá Irelandá Italyá Latviaá Lithuaniaá Luxembourgá Maltaá Netherlandsá Norwayá Polandá Portugalá Romaniaá Serbiaá Slovakiaá Sloveniaá Spainá Swedená Switzerlandá Turkey and United Kingdomä
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CEN-CENELEC Management Centre:
Avenue Marnix 17,
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9
t r s y CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Membersä Refä Noä EN
s x { r wæ wã t r s y ESIST EN 16905-5:2018
EN 16905-5:2017 (E) 2 Contents Page European foreword . 4 1 Scope . 5 1.1 Scope of EN 16905 series . 5 1.2 Scope of EN 16905-5 . 5 2 Normative references . 6 3 Terms and definitions . 6 4 Part load conditions in cooling mode . 6 4.1 General . 6 4.2 Air-to-air units . 6 4.3 Water-to-air and brine to air units . 6 4.4 Air-to-water units . 7 4.5 Water-to-water and brine-to-water units . 8 5 Part load conditions in heating mode . 9 5.1 General . 9 5.2 Air-to-air units . 10 5.3 Water-to-air units and brine to air units . 12 5.4 Air-to-water units . 13 5.4.1 General . 13 5.4.2 Low temperature application . 14 5.4.3 Medium temperature application . 17 5.4.4 High temperature application . 20 5.5 Water-to-water and brine-to-water units . 23 5.5.1 General . 23 5.5.2 Low temperature application . 23 5.5.3 Medium temperature application . 26 5.5.4 High temperature application . 29 6 Calculation methods for reference SPERc . 31 6.1 General . 31 6.2 General formula for calculation of GUEc and AEFc . 32 6.3 General formula for calculation of EHREgasc and EHREelecc . 32 6.4 General formula for calculation of reference SGUEc . 32 6.5 Calculation of reference SAEFc . 33 6.6 Calculation of reference annual cooling demand (Qref,c) . 33 6.7 Calculation of reference SAEFcON . 34 6.8 Calculation of reference SEHREgasc . 34 6.9 Calculation of reference SEHREelecc . 35 6.10 Procedures for the determination of GUEcPL / AEFcPL values . 35 6.11 Procedures for the determination of EHREgascPL / EHREeleccPL values . 35 6.12 Calculation of reference SPERc . 36 7 Calculation methods for reference SPERh . 36 7.1 General . 36 7.2 General formula for calculation of GUEh and AEFh . 36 7.3 General formula for calculation of EHREgash . 36 7.4 General formula for calculation of reference SGUEh . 37 SIST EN 16905-5:2018
EN 16905-5:2017 (E) 3 7.5 Calculation of reference SAEFh . 39 7.6 Calculation of reference annual heating demand (Qrefh) . 39 7.7 Calculation of reference SAEFhON . 40 7.8 Calculation of reference SEHREgash . 40 7.9 Calculation of reference SEHREelech . 41 7.10 Procedures for the determination of GUEhPL / AEFhPL values . 41 7.11 Procedures for the determination of SEHREgashPL / SEHREelechPL values . 41 7.12 Calculation of reference SPERh . 42 Annex A (normative)
Determination of reference annual cooling/heating demands and determination of hours for active mode, thermostat off, standby, off mode and crankcase heater mode for reference SAEFc and SAEFh calculation . 43 Annex B (informative)
Calculation example for reference SGUEc, SAEFc, SEHREgasc, SEHREelecc and SPERc . 45 Annex C (informative)
Calculation example for reference SGUEh, SAEFh, SEHREgash, SEHREelech and SPERh . 48 Annex D (informative)
Adaption of water temperature for fixed capacity . 51 Annex E (informative)
Compensation method for air to water and water to water units . 52 Annex ZA (informative)
Relationship between this European Standard and the ecodesign requirements of Commission Regulation (EU) No 813/2013 aimed to be covered . 53 Annex ZB (informative)
Relationship between this European Standard and the energy labelling requirements of Commission Delegated Regulation (EU) No 811/2013 aimed to be covered . 55 Bibliography . 57
SIST EN 16905-5:2018
EN 16905-5:2017 (E) 4 European foreword This document (EN 16905-5:2017) 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 September 2017, and conflicting national standards shall be withdrawn at the latest by September 2017. 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 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 Directive(s). For relationship with EU Directive(s), see informative Annex ZA and Annex ZB, which are integral parts of this document. This standard comprises the following parts under the general title, Gas-fired endothermic engine driven heat pumps: — Part 1: Terms and definitions; — Part 2: Safety (WI 00299025; currently in preparation); — Part 3: Test conditions; — Part 4: Test methods; — Part 5: Calculation of seasonal performances in heating and cooling mode. EN 16905-1, prEN 16905-2, EN 16905-3, EN 16905-4 and EN 16905-5 have been prepared to address the essential requirements of the European Directive 2009/142/EC relating to appliances burning gaseous fuels (see prEN 16905-2:201X, Annex ZA for safety aspects and EN 16905-5:2017, Annex ZA for rational use of energy aspects). These documents are linked to the Energy Related Products Directive (2009/125/EC) in terms of tests conditions, tests methods and seasonal performances calculation methods under Mandate M/535; (see EN 16905-3:2017, Annex ZA, EN 16905-4:2017, Annex ZA, EN 16905-5:2017, Annex ZA and prEN 16905-2:201X, Annex ZB). These documents will be reviewed whenever new mandates could apply. 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, 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. SIST EN 16905-5:2018
EN 16905-5:2017 (E) 5 1 Scope 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 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”. 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. 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. The appliances having their condenser cooled by air and by the evaporation of external additional water are not covered by this European Standard. Packaged units, single split and multisplit systems are covered by this European Standard. Single duct and double duct units are covered by this European Standard. The above appliances can have one or more primary or secondary functions. 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. In the case of packaged units (consisting of several parts), this European Standard applies only to those designed and supplied as a complete package. NOTE All the symbols given in this text are used regardless of the language used. 1.2 Scope of EN 16905-5 This part of the EN 16905 series specifies the calculation of seasonal performance factor for gas-fired endothermic engine driven heat pumps for heating and/or cooling mode including the engine heat recovery. SIST EN 16905-5:2018
EN 16905-5:2017 (E) 6 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. EN 16905-1, Gas-fired endothermic engine driven heat pumps — Part 1: Terms and definitions EN 16905-4:2017, 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. 4 Part load conditions in cooling mode 4.1 General For the purpose of calculation of application SGUEc, SAEFc, SEHREgasc, SEHREelecc and reference SGUEc, SAEFc, SEHREgasc, SEHREelecc as explained in Clauses 6 and 7, the part load ratios mentioned below shall be based on the part load ratio Formulae (1)st column of Tables 1 to 2) and not on the rounded figures as mentioned in the 2nd column of these tables. The calculation of SGUEc, SAEFc, SEHREgasc, SEHREelecc and reference SGUEc, SAEFc, SEHREgasc, SEHREelecc is determined via linear interpolation of the respective part load values at the reference part load conditions mentioned below (A, B, C, D). 4.2 Air-to-air units The part load conditions for determining the reference SGUEc (Formula (2)), SAEFc (Formula (4)), SEHREgasc (Formula (7)), SEHREelecc (Formula (8)) are given in the following table: Table 1 — Part load conditions of air to air units and air-cooled multisplit systems in cooling mode
Part load ratio Part load ratio % Outdoor air dry bulb temperature °C Indoor air dry bulb (wet bulb) temperatures °C A (35–16)/(Tdesignc-16) 100 35 27(19) B (30–16)/(Tdesignc-16) 74 30 27(19) C (25–16)/(Tdesignc-16) 47 25 27(19) D (20–16)/(Tdesignc-16) 21 20 27(19) 4.3 Water-to-air and brine to air units The part load conditions for determining the reference SGUEc (Formula (2)), SAEFc (Formula (4)), SEHREgasc (Formula (7)), SEHREelecc (Formula (8)) are given in the following table: SIST EN 16905-5:2018
EN 16905-5:2017 (E) 7 Table 2 — Part load conditions of water-to-air and brine-to-air units in cooling mode
Part load ratio Part load ratio % Outdoor heat exchanger Indoor heat exchanger Cooling tower b
or water loop application Inlet/outlet water temperatures °C Ground coupled application (water or brine) Inlet/outlet water temperatures °C Dry cooler application Inlet/outlet water temperatures °C Air dry bulb (wet bulb) temperatures °C A (35–16)/(Tdesignc-16) 100 30/35 10/15 50/45 27(19) B (30–16)/(Tdesignc-16) 74 26/a 10/a 45/a 27(19) C (25–16)/(Tdesignc-16) 47 22/a 10/a 40/a 27(19) D (20–16)/(Tdesignc-16) 21 18/a 10/a 35/a 27(19) a With the water flow rate as determined during the “A” test. b If a cooling tower and a water-to-air unit are sold as a matched assembly, they shall be tested as an air-to-air unit. 4.4 Air-to-water units For each application, units either allowing or not allowing a variation of the outlet water temperature with the outdoor temperature are considered. The variable outlet temperature shall only be applied when the control provides a regulation of outlet water temperature that considers the outdoor temperature. The part load conditions for determining the reference SGUEc (Formula (2)), SAEFc (Formula (4)), SEHREgasc (Formula (7)), SEHREelecc (Formula (8)) are given in the following table: SIST EN 16905-5:2018
EN 16905-5:2017 (E) 8 Table 3 — Part load conditions of air-to-water units in cooling mode
Part load ratio Part load ratio % Outdoor heat exchanger Indoor heat exchanger
Air dry bulb temperature °C Fan coil application Inlet/outlet water temperatures Cooling floor application Inlet/outlet water temperatures °C
Fixed outlet °C Variable outlet °C A (35–16)/(Tdesignc-16) 100 35 12/7 12/7 23/18 B (30–16)/(Tdesignc-16) 74 30 a/7 a/8,5 a/18 C (25–16)/(Tdesignc-16) 47 25 a/7 a/10 a/18 D (20–16)/(Tdesignc-16) 21 20 a/7 a/11,5 a/18 a With the water flow rate as determined during “A” test for units with a fixed water flow rate or with a fixed delta T of 5 K for units with a variable water flow rate. 4.5 Water-to-water and brine-to-water units For each application, units either allowing or not allowing a variation of the outlet water temperature with the outdoor temperature are considered. The variable outlet temperature shall only be applied when the control provides a regulation of outlet water temperature that considers the outdoor temperature. The part load conditions for determining the reference SGUEc (Formula (2)), SAEFc (Formula (4)), SEHREgasc (Formula (7)), SEHREelecc (Formula (8)) are given in the following table: SIST EN 16905-5:2018
EN 16905-5:2017 (E) 9 Table 4 — Part load conditions of water to-water units and brine to-water units in cooling mode
Part load ratio Part load ratio %
Outdoor heat exchanger Indoor heat exchanger
Cooling towerb application Inlet/outlet water temperatures °C Ground coupled application (water or brine) Inlet/outlet water temperatures °C Dry cooler application Inlet/outlet water temperatures °C Fan coil application Inlet/outlet water temperatures Cooling floor application Inlet/outlet water temperatures °C
Fixed outlet °C Variable outlet °C
A (35–1 6) / (Tdesignc-16) 100 30/35 10/15 50/45 12/7 12/7 23/18 B (30–1 6) / (Tdesignc-16) 74 26/a 10/a 45/a a/7 a/8,5 a/18 C (25–1 6) / (Tdesignc-16) 47 22/a 10/a 40/a a/7 a/10 a/18 D (20–1 6) / (Tdesignc-16) 21 18/a 10/a 35/a a/7 a/11,5 a/18 a With the water flow rate as determined during “A” test for units with a fixed water flow rate or with a fixed delta T of 5 K for units with a variable water flow rate. b If a cooling tower and water-to-air unit are sold as a matched assembly, they shall be tested as an air-to-air unit. 5 Part load conditions in heating mode 5.1 General For the purpose of calculation of application SGUEh, SAEFh, SEHREgash, SEHREelech and reference SGUEh, SAEFh, SEHREgash, SEHREelech the part load ratios mentioned below should be based on the part load ratio Formulae (1)st column of Tables 4 to 22) and not on the rounded figures as mentioned in the 2nd column of these tables. The calculation of SGUEh, SAEFh, SEHREgash, SEHREelech and reference SGUEh, SAEFh, SEHREgash, SEHREelech is determined via linear interpolation of the respective part load values at the reference part load conditions mentioned below (A, B, C, D). For the purpose of reference SGUEh, SAEFh, SEHREgash, SEHREelech there are three reference conditions: average(A), warmer (W) and colder (C). The relevant Tdesignh values are defined as follows: — Tdesign “average” dry bulb temperature conditions at
« 10
11 °C wet bulb) outdoor temperature and 20 °C indoor temperature; u Tdesign qcolderr dry bulb temperature conditions at
« 22
23 °C wet bulb) outdoor temperature and 20 °C indoor temperature u Tdesign qwarmerr dry bulb temperature conditions at + 2 °C (1 °C wet bulb) outdoor temperature and 20 °C indoor temperature SIST EN 16905-5:2018
EN 16905-5:2017 (E) 10 and the relevant Tbivalent is defined as follows: — for the average heating season, the dry bulb bivalent temperature is + 2 °C or lower; — for the colder heating seasoná the dry bulb bivalent temperature is
« 7 °C or lower; — for the warmer heating season, the dry bulb bivalent temperature is + 7 °C or lower. NOTE If the declared TOL is lower than the Tdesignh of the considered climate, then it is assumed that TOL is equal to Tdesignhä For Tbivalent and TOL higher or equal to
« 7 °C the wet bulb temperature equals the dry bulb temperature minus 1
¹Cä For Tbivalent and TOL below
« 7 °C, the wet bulb temperature is not defined. At any other part load conditions, the declared capacity of the appliance is larger than the building load. 5.2 Air-to-air units The part load conditions for determining the reference SGUEh (Formula (11)), SAEFh (Formula (13)), SEHREgash (Formula (16)), SEHREelech (Formula (17)) are given in the following tables: Table 5 — Part load conditions of air-to-air units and air-cooled multisplit systems in heating mode for the reference heating season “A” = average
A Outdoor air dry bulb (wet bulb) temperatures °C Indoor air dry bulb temperature °C
Part load ratio Part load ratio % A –16)/(Tdesignh-16) 88
« 20 B (+2–16)/(Tdesignh-16) 54 2(1) 20 C (+7–16)/(Tdesignh-16) 35 7(6) 20 D (+12–16)/(Tdesignh-16) 15 12(11) 20 E (TOL-16)/(Tdesignh-16) TOL 20 F (Tbivalent- Tbivalent 20 SIST EN 16905-5:2018
EN 16905-5:2017 (E) 11 Table 6 — Part load conditions of air-to-air units and air-cooled multisplit systems in heating mode for the reference heating season “W” = warmer
W Outdoor air dry bulb (wet bulb) temperatures °C Indoor air dry bulb temperature °C
Part load ratio Part load ratio %
A (not applicable)
B (+2–16)/(Tdesignh-16) 100 2(1) 20 C (+7–16)/(Tdesignh-16) 64 7(6) 20 D (+12–16)/(Tdesignh-16) 29 12(11) 20 E (TOL-16)/(Tdesignh-16) TOL 20 F (Tbivalent- Tbivalent 20 Table 7 — Part load conditions of air-to-air units and air-cooled multisplit systems in heating mode for the reference heating season “C” = colder
C Outdoor air dry bulb (wet bulb) temperatures °C Indoor air dry bulb temperature °C
Part load ratio Part load ratio %
A –16)/(Tdesignh-16) 61
« 20 B (+2–16)/(Tdesignh-16) 37 2(1) 20 C (+7–16)/(Tdesignh-16) 24 7(6) 20 D (+12–16)/(Tdesignh-16) 11 12(11) 20 E (TOL-16)/(Tdesignh-16) TOL 20 F (Tbivalent-16)/(Tdesignh-16) Tbivalent 20 Ga –16)/(Tdesignh-16) 82
«15 20 a Condition G is performed in case TOL is below
« t r °C. SIST EN 16905-5:2018
EN 16905-5:2017 (E) 12 5.3 Water-to-air units and brine to air units The part load conditions for determining the reference SGUEh (Formula (11)), SAEFh (Formula (13)), SEHREgash (Formula (16)), SEHREelech (Formula (17)) are given in the following tables: Table 8 — Part load conditions of water-to-air and brine-to-air units in heating mode for the reference heating season “A” = average
A Outdoor heat exchanger Indoor heat exchanger
Part load ratio Part load ratio %
Ground water Brine Indoor air
Inlet/outlet temperatures °C Inlet/outlet temperatures °C Inlet dry bulb temperature °C A –16)/(Tdesignh-16) 88 10/a 0/a 20 B (+2–16)/(Tdesignh-16) 54 10/a 0/a 20 C (+7–16)/(Tdesignh-16) 35 10/a 0/a 20 D (+12–16)/(Tdesignh-16) 15 10/a 0/a 20 F (Tbivalent-16)/(Tdesignh-16) 10/a 0/a 20 a The water flow rate as determined at the standard rating conditions.
Table 9 — Part load conditions of water-to-air and brine-to-air units in heating mode for the reference heating season “W” = warmer
W Outdoor heat exchanger Indoor heat exchanger
Part load ratio Part load ratio % Ground water Brine Indoor air Inlet/outlet temperatures °C Inlet/outlet temperatures ° C Indoor temperatures dry bulb °C A Not applicable
B (+2–16)/(Tdesignh-16) 100 10/a 0/a 20 C (+7–16)/(Tdesignh-16) 64 10/a 0/a 20 D (+12–16)/(Tdesignh-16) 29 10/a 0/a 20 F (Tbivalent-16)/(Tdesignh-16) 10/a 0/a 20 a The water flow rate as determined at the standard rating conditions of fixed capacity heat pumps. SIST EN 16905-5:2018
EN 16905-5:2017 (E) 13 Table 10 — Part load conditions of water-to-air and brine-to-air units in heating mode or the reference heating season “C” = colder
C Outdoor heat exchanger Indoor heat exchanger
Ground water Brine Indoor air
Part load ratio Part load ratio % Inlet/outlet temperatures °C Inlet/outlet temperatures ° C Indoor temperatures dry bulb °C A –16)/(Tdesignh-16) 61 10/a 0/a 20 B (+2–16)/(Tdesignh-16) 37 10/a 0/a 20 C (+7–16)/(Tdesignh-16) 24 10/a 0/a 20 D (+12–16)/(Tdesignh-16) 11 10/a 0/a 20 F (Tbivalent-16)/(Tdesignh-16) 10/a 0/a 20 a The water flow rate as determined at the standard rating conditions of fixed capacity heat pumps. 5.4 Air-to-water units 5.4.1 General For each application, units either allowing or not allowing a variation of the outlet water temperature with the outdoor temperature are considered. The variable outlet temperature shall only be applied when the control provides a regulation of outlet water temperature that considers the outdoor temperature. The part load conditions for determining the reference SGUEh (Formula (11)), SAEFh (Formula (13)), SEHREgash (Formula (16)), SEHREelech (Formula (17)) are given in the following tables. SIST EN 16905-5:2018
EN 16905-5:2017 (E) 14 5.4.2 Low temperature application Table 11 — Part load conditions of air-to-water units in heating mode, for low temperature application, for the reference heating season “A” = average
A Outdoor heat exchanger b Indoor heat exchanger
Part load ratio Part load ratio % Outdoor air Inlet/outlet temperatures
Inlet dry bulb
(wet bulb) temperature °C Fixed outlet °C Variable outlet °C A –16)/(Tdesignh-16) 88
« a /35 a /34 B (+2–16)/(Tdesignh-16) 54 2
...
SLOVENSKI STANDARD
oSIST prEN 16905-5:2015
01-november-2015
3OLQVNHWRSORWQHþUSDONHHQGRWHUPQHJDPRWRUMDGHO ,]UDþXQVH]RQVNH
]PRJOMLYRVWL]DRJUHYDQMHLQKODMHQMH
Gas-fired endothermic engine heat pumps - Part 5: Calculation of seasonal
performances in heating and Cooling mode
Gasbefeuerte endothermische Motor-Wärmepumpen - Teil 5: Berechnung der
saisonalen Effizienzkennzahlen im Heiz- und Kühlmodus
Pompes à chaleur à moteur endothermique alimenté au gaz -Partie 5 : Calcul des
performances saisonnières en modes chauffage et refroidissement
Ta slovenski standard je istoveten z: prEN 16905-5
ICS:
27.080 7RSORWQHþUSDONH Heat pumps
oSIST prEN 16905-5:2015 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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oSIST prEN 16905-5:2015
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oSIST prEN 16905-5:2015
EUROPEAN STANDARD
DRAFT
prEN 16905-5
NORME EUROPÉENNE
EUROPÄISCHE NORM
September 2015
ICS
English Version
Gas-fired endothermic engine heat pumps - Part 5: Calculation
of seasonal performances in heating and Cooling mode
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee CEN/TC 299.
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 16905-5:2015 E
worldwide for CEN national Members.
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oSIST prEN 16905-5:2015
prEN 16905-5:2015 (E)
Contents Page
Foreword .4
1 Scope .5
1.1 Scope of prEN 16905 .5
1.2 Scope of prEN 16905-5 .5
2 Normative references .6
3 Terms and definitions .6
4 Part load conditions in cooling mode.6
4.1 General .6
4.2 Air-to-air units .6
4.3 Water-to-air and brine to air units .6
4.4 Air-to-water units .7
4.5 Water-to-water and brine-to-water units.8
5 Part load conditions in heating mode.9
5.1 General .9
5.2 Air-to-air units . 10
5.3 Water-to-air units and brine to air units . 11
5.4 Air-to-water units . 12
5.4.1 General . 12
5.4.2 Low temperature application . 13
5.4.3 Medium temperature application . 15
5.4.4 High temperature application . 18
5.5 Water-to-water and brine-to-water units. 21
5.5.1 General . 21
5.5.2 Low temperature application . 22
5.5.3 Medium temperature application . 25
5.5.4 High temperature application . 28
6 Calculation methods for reference SPER . 30
c
6.1 General . 30
6.2 General formula for calculation of GUE and AEF . 30
c c
6.3 General formula for calculation of EHRE and EHRE . 31
gasc elecc
6.4 General formula for calculation of reference SGUEc. 31
6.5 Calculation of reference SAEF . 32
c
6.6 Calculation of reference annual cooling demand (Qref ) . 32
c
6.7 Calculation of reference SAEF . 32
CON
6.8 Calculation of reference SEHREgas . 33
c
6.9 Calculation of reference SEHREelec . 33
c
6.10 Procedures for the determination of GUEc / AEFc values . 34
PL PL
6.11 Procedures for the determination of EHREgas / EHREelec values . 34
cPL cPL
6.12 Calculation of reference SPERc . 34
7 Calculation methods for reference SPER . 35
h
7.1 General . 35
7.2 General formula for calculation of GUE and AEF . 35
h h
7.3 General formula for calculation of EHREgas . 35
h
7.4 General formula for calculation of reference SGUE . 35
h
7.5 Calculation of reference SAEF . 37
h
7.6 Calculation of reference annual heating demand (Qref ) . 38
h
7.7 Calculation of reference SAEF . 38
hON
7.8 Calculation of reference SEHREgas . 39
h
2
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oSIST prEN 16905-5:2015
prEN 16905-5:2015 (E)
7.9 Calculation of reference SEHREelec . 39
h
7.10 Procedures for the determination of GUE / AEF values . 40
hPL hPL
7.11 Procedures for the determination of SEHREgas / SEHREelec values . 40
hPL hPL
7.12 Calculation of reference SPER . 40
h
Annex A (normative) Determination of reference annual cooling/heating demands and
determination of hours for active mode, thermostat off, standby, off mode and crankcase
and SAEF calculation . 42
heater mode for reference SAEF
c h
Annex B (informative) Calculation example for reference SGUE , SAEF , SEHREgas ,
c c c
and SPER . 43
SEHREelec
c c
Annex C (informative) Calculation example for reference SGUE , SAEF , SEHREgas ,
h h h
and SPER . 45
SEHREelec
h h
Annex D (informative) Adaption of water temperature for fixed capacity . 48
Annex E (informative) Compensation method for Air to Water and Water to Water units . 49
Annex ZA (informative) Relationship between this European Standard and the requirements of
Commission Regulation (EC) No 813/2013 . 50
Annex ZB (informative) Relationship between this European Standard and the requirements of
Commission Regulation (EC) No 811/2013 . 51
Bibliography . 52
3
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oSIST prEN 16905-5:2015
prEN 16905-5:2015 (E)
Foreword
This document (prEN 16905-5:2015) 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 document is currently submitted to the CEN Enquiry.
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 Directive(s).
For relationship with EU Directive(s), see informative Annex ZA and Annex ZB, which are integral parts of this
document.
This standard 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.
prEN 16905-1, prEN 16905-2, prEN 16905-3, prEN 16905-4 and prEN 16905-5 have been prepared to
address the essential requirements of the European Directive 2009/142/EC relating to appliances burning
gaseous fuels (see prEN 16905-2, Annex ZA for safety aspects and prEN 16905-5:2015, Annex ZA of for
rational use of energy aspects).
These documents are linked to the Energy Related Products Directive (2009/125/EC) in terms of tests
conditions, tests methods and seasonal performances calculation methods under Mandate M/495; (see
prEN 16905-3:2015, Annex ZA, prEN 16905-4:2015, Annex ZA, prEN 16905-5:2015, Annex ZA and
prEN 16905-2, Annex ZB).
These documents will be reviewed whenever new mandates could apply.
4
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oSIST prEN 16905-5:2015
prEN 16905-5:2015 (E)
1 Scope
1.1 Scope of prEN 16905
This European Standard specifies the requirements, test methods and test conditions 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”.
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 I , I , I , I , I , I , I , I ,
2H 2E 2Er 2R 2E(S)B 2L 2LL 2ELL
I , I , I , I , I , I , II , II , II , II , II , II , II , II , II and II
2E(R)B 2ESi 2E(R) 3P 3B 3B/P 2H3+ 2Er3+ 2H3B/P 2L3B/P 2E3B/P 2ELL3B/P 2L3P 2H3P 2E3P 2Er3P
according to EN 437.
This European Standard only applies to appliances having:
— gas fired endothermic engines under the control of fully automatic control systems;
— closed system refrigerant circuits in which the refrigerant does not come into direct contact with the fluid
to be cooled or heated;
— where the temperature of the heat transfer fluid of the heating system (heating water circuit) does not
exceed 105 °C during normal operation;
— where the maximum operating pressure in the
— heating water circuit (if installed) does not exceed 6 bar
— 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.
The appliances having their condenser cooled by air and by the evaporation of external additional water are
not covered by this European Standard.
Packaged units, single split and multisplit systems are covered by this European Standard. Single duct and
double duct units are covered by this European Standard.
The above appliances can have one or more primary or secondary functions.
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.
In the case of packaged units (consisting of several parts), this European Standard applies only to those
designed and supplied as a complete package.
NOTE All the symbols given in this text are used regardless of the language used.
1.2 Scope of prEN 16905-5
This part of prEN 16905 specifies the calculation of seasonal performance factor for heating and/or cooling
mode including the engine heat recovery.
5
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oSIST prEN 16905-5:2015
prEN 16905-5:2015 (E)
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 16905-1:2015, Gas-fired endothermic engine heat pumps ― Part 1: Terms and definitions
prEN 16905-4:2015, Gas-fired endothermic engine heat pumps ― Part 4: Tests methods
3 Terms and definitions
For the purposes of this document, the terms and definitions given in prEN 16905-1:2015 apply.
4 Part load conditions in cooling mode
4.1 General
For the purpose of calculation of application SGUE , SAEF , SEHREgas , SEHREelec and reference SGUE ,
c c c c c
SAEF , SEHREgas , SEHREelec as explained in Clauses 6 and 7, the part load ratios mentioned below shall
c c c
st
be based on the part load ratio Formulae (1 column of Tables 1 to 2) and not on the rounded figures as
nd
mentioned in the 2 column of these tables. The calculation of SGUE , SAEF , SEHREgas , SEHREelec and
c c c c
reference SGUE , SAEF , SEHREgas , SEHREelec is determined via linear interpolation of the respective
c c c c
part load values at the reference part load conditions mentioned below (A,B,C,D).
4.2 Air-to-air units
The part load conditions for determining the reference SGUE (Formula (2)), SAEF (Formula (4)),
c c
SEHREgas (Formula (7)), SEHREelec (Formula (8)) are given in the following table:
c c
Table 1 — Part load conditions of air to air units and air-cooled multisplit systems in cooling mode
Part load ratio Part load Outdoor air dry Indoor air dry bulb
ratio bulb temperature (wet bulb)
temperatures
% °C
°C
A (35–16)/(Tdesignc-16) 100 35 27(19)
B (30–16)/(Tdesignc-16) 74 30 27(19)
C (25–16)/(Tdesignc-16) 47 25 27(19)
D (20–16)/(Tdesignc-16) 21 20 27(19)
4.3 Water-to-air and brine to air units
The part load conditions for determining the reference SGUE (Formula (2)), SAEF (Formula (4)),
c c
SEHREgas (Formula (7)), SEHREelec (Formula (8)) are given in the following table:
c c
6
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oSIST prEN 16905-5:2015
prEN 16905-5:2015 (E)
Table 2 — Part load conditions of water-to-air and brine-to-air units in cooling mode
Part load ratio Indoor heat
Outdoor heat exchanger
exchanger
Ground
Cooling
coupled
Part b
Dry cooler
tower or
application
load
application Air dry bulb
water loop
(water or
ratio
Inlet/outlet (wet bulb)
application
brine)
water temperatures
%
Inlet/outlet
Inlet/outlet
temperatures
water
°C
water
temperatures
°C
temperatures
°C
°C
A
(35–16)/(Tdesignc-16) 100 30/35 10/15 50/45 27(19)
B
a a a
(30–16)/(Tdesignc-16) 74 27(19)
26/ 10/ 45/
C
a a a
(25–16)/(Tdesignc-16) 47 27(19)
22/ 10/ 40/
D
a a a
(20–16)/(Tdesignc-16) 21 27(19)
18/ 10/ 35/
a
With the water flow rate as determined during the “A” test.
b
If a cooling tower and a water-to-air unit are sold as a matched assembly, they shall be tested as an air-
to-air unit.
4.4 Air-to-water units
For each application, units either allowing or not allowing a variation of the outlet water temperature with the
outdoor temperature are considered. The variable outlet temperature shall only be applied when the control
provides a regulation of outlet water temperature that considers the outdoor temperature.
The part load conditions for determining the reference SGUE (Formula (2)), SAEF (Formula (4)),
c c
SEHREgas (Formula (7)), SEHREelec (Formula (8)) are given in the following table:
c c
7
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oSIST prEN 16905-5:2015
prEN 16905-5:2015 (E)
Table 3 — Part load conditions of air-to-water units in cooling mode
Part load ratio Outdoor
heat Indoor heat exchanger
exchanger
Fan coil application
Cooling floor
Inlet/outlet water
application
temperatures
Inlet/outlet
Air dry bulb water
temperature temperatures
°C °C
Part
load
Variable
ratio Fixed outlet
outlet
% °C
°C
A (35–16)/(Tdesignc-16) 100 35 12/7 12/7 23/18
a a a
B (30–16)/(Tdesignc-16) 74 30
/7 /8,5 /18
a a a
C (25–16)/(Tdesignc-16) 47 25
/7 /10 /18
a a a
D (20–16)/(Tdesignc-16) 21 20
/7 /11,5 /18
a
With the water flow rate as determined during “A” test for units with a fixed water flow rate or with a fixed
delta T of 5 K for units with a variable water flow rate.
4.5 Water-to-water and brine-to-water units
For each application, units either allowing or not allowing a variation of the outlet water temperature with the
outdoor temperature are considered. The variable outlet temperature shall only be applied when the control
provides a regulation of outlet water temperature that considers the outdoor temperature.
The part load conditions for determining the reference SGUE (Formula (2)), SAEF (Formula (4)),
c c
SEHREgas (Formula (7)), SEHREelec (Formula (8)) are given in the following table:
c c
8
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oSIST prEN 16905-5:2015
prEN 16905-5:2015 (E)
Table 4 — Part load conditions of water to-water units and brine to-water units in cooling mode
Part load ratio Outdoor heat exchanger Indoor heat exchanger
Fan coil
Ground application
coupled Inlet/outlet water
Cooling
application temperatures
b
tower (water or Dry cooler Cooling floor
application brine) application application
Inlet/outlet Inlet/outlet Inlet/outlet Inlet/outlet
water water water water
temperatures temperatures temperatures temperatures
°C °C °C °C
Part
load
ratio
Fixed Variable
% outlet outlet
°C °C
(35–1 6) /
A 100 30/35 10/15 50/45 12/7 12/7 23/18
(Tdesignc-16)
(30–1 6) /
a a a a a a
B 74
26/ 10/ 45/ /7 /8,5 /18
(Tdesignc-16)
(25–1 6) /
a a a a a a
C 47
22/ 10/ 40/ /7 /10 /18
(Tdesignc-16)
(20–1 6) /
a a a a a a
D 21
18/ 10/ 35/ /7 /11,5 /18
(Tdesignc-16)
a
With the water flow rate as determined during “A” test for units with a fixed water flow rate or with a fixed delta T of
5 K for units with a variable water flow rate.
b
If a cooling tower and water-to-air unit are sold as a matched assembly, they shall be tested as an air-to-air unit.
5 Part load conditions in heating mode
5.1 General
For the purpose of calculation of application SGUE , SAEF , SEHREgas , SEHREelec and reference SGUE ,
h h h h h
SAEF , SEHREgas , SEHREelec the part load ratios mentioned below should be based on the part load ratio
h h h
st nd
Formulae (1 column of Tables 4 to 22) and not on the rounded figures as mentioned in the 2 column of
these tables. The calculation of SGUE , SAEF , SEHREgas , SEHREelec and reference SGUE , SAEF ,
h h h h h h
SEHREgas , SEHREelec is determined via linear interpolation of the respective part load values at the
h h
reference part load conditions mentioned below (A,B,C,D). For the purpose of reference SGUE , SAEF ,
h h
SEHREgas , SEHREelec there are three reference conditions: average(A), warmer (W) and colder (C).
h h
The relevant Tdesign values are defined as follows:
h
— Tdesign “average” dry bulb temperature conditions at − 10 °C (− 11 °C wet bulb) outdoor
temperature and 20 °C indoor temperature;
— Tdesign “colder” dry bulb temperature conditions at − 22 °C (− 23 °C wet bulb) outdoor
temperature and 20 °C indoor temperature
— Tdesign “warmer” dry bulb temperature conditions at + 2 °C (1 °C wet bulb) outdoor temperature
and 20 °C indoor temperature
and the relevant Tbivalent is defined as follows:
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oSIST prEN 16905-5:2015
prEN 16905-5:2015 (E)
— for the average heating season, the dry bulb bivalent temperature is + 2 °C or lower;
— for the colder heating season, the dry bulb bivalent temperature is − 7 °C or lower;
— for the warmer heating season, the dry bulb bivalent temperature is + 7 °C or lower.
NOTE If the declared TOL is lower than the Tdesign of the considered climate, then it is assumed that TOL is equal
h
to Tdesign . For Tbivalent and TOL higher or equal to − 7 °C the wet bulb temperature equals the dry bulb temperature
h
minus 1 °C. For Tbivalent and TOL below − 7 °C, the wet bulb temperature is not defined. At any other part load
conditions, the declared capacity of the appliance is larger than the building load.
5.2 Air-to-air units
The part load conditions for determining the reference SGUE (Formula (11)), SAEF (Formula (13)),
h h
SEHREgas (Formula (16)), SEHREelec (Formula (17)) are given in the following tables:
h h
Table 5 — Part load conditions of air-to-air units and air-cooled multisplit systems in heating mode for
the reference heating season “A” = average
A Outdoor air dry Indoor air dry
bulb (wet bulb) bulb
Part load ratio Part load
temperatures temperature
ratio
°C °C
%
A (−7–16)/(Tdesignh-16) 88 −7(−8) 20
B (+2–16)/(Tdesignh-16) 54 2(1) 20
C (+7–16)/(Tdesignh-16) 35 7(6) 20
D (+12–16)/(Tdesignh-16) 15 12(11) 20
E (TOL-16)/(Tdesignh-16) TOL 20
F (Tbivalent-16)/(Tdesignh −16) Tbivalent 20
Table 6 — Part load conditions of air-to-air units and air-cooled multisplit systems in heating mode for
the reference heating season “W” = warmer
W
Outdoor air dry Indoor air dry
bulb (wet bulb) bulb
temperatures temperature
°C °C
Part load ratio Part load
ratio
%
A (not applicable)
B (+2–16)/(Tdesignh-16) 100 2(1) 20
C (+7–16)/(Tdesignh-16) 64 7(6) 20
D (+12–16)/(Tdesignh-16) 29 12(11) 20
E (TOL-16)/(Tdesignh-16) TOL 20
F (Tbivalent-16)/(Tdesignh −16) Tbivalent 20
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oSIST prEN 16905-5:2015
prEN 16905-5:2015 (E)
Table 7 — Part load conditions of air-to-air units and air-cooled multisplit systems in heating mode for
the reference heating season “C” = colder
C Outdoor air dry Indoor air dry
bulb (wet bulb) bulb
temperatures temperature
°C °C
Part load ratio Part load ratio
%
A (−7–16)/(Tdesignh-16) 61 −7(−8) 20
B (+2–16)/(Tdesignh-16) 37 2(1) 20
C (+7–16)/(Tdesignh-16) 24 7(6) 20
D (+12–16)/(Tdesignh-16) 11 12(11) 20
E (TOL-16)/(Tdesignh-16) TOL 20
F (Tbivalent-16)/(Tdesignh-16) Tbivalent 20
a (−15–16)/(Tdesignh-16) 82 −15 20
G
a
Condition G is performed in case TOL is below −20 C
5.3 Water-to-air units and brine to air units
The part load conditions for determining the reference SGUE (Formula (11)), SAEF (Formula (13)),
h h
SEHREgas (Formula (16)), SEHREelec (Formula (17)) are given in the following tables:
h h
Table 8 — Part load conditions of water-to-air and brine-to-air units in heating mode for the reference
heating season “A” = average
A
Indoor heat
Outdoor heat exchanger
exchanger
Part load ratio
Part load
Ground water Brine Indoor air
ratio
Inlet dry bulb
%
Inlet/outlet Inlet/outlet
temperature
temperatures°C temperatures°C
°C
A (−7–16)/(Tdesignh-16) 88 a a 20
10/ 0/
B (+2–16)/(Tdesignh-16) 54 20
a a
10/ 0/
C (+7–16)/(Tdesignh-16) 35 a a 20
10/ 0/
D (+12–16)/(Tdesignh-16) 15 a a 20
10/ 0/
F (Tbivalent-16)/(Tdesignh-16) a a 20
10/ 0/
a
The water flow rate as determined at the standard rating conditions.
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oSIST prEN 16905-5:2015
prEN 16905-5:2015 (E)
Table 9 — Part load conditions of water-to-air and brine-to-air units in heating mode for the reference
heating season “W” = warmer
W Indoor heat
Outdoor heat exchanger
exchanger
Part load ratio
Part
Ground water Brine Indoor air
load
Inlet/outlet
ratio
Indoor
temperatures
%
Inlet/outlet temperatures dry
dry (wet) bulb°
temperatures °C bulb °C
C
A Not applicable
B (+2–16)/(Tdesignh-16) 100 a a 20
10/ 0/
C (+7–16)/(Tdesignh-16) 64 a a 20
10/ 0/
D (+12–16)/(Tdesignh- 29 a a 20
10/ 0/
16)
F (Tbivalent-16)/(Tdesignh-16) a a 20
10/ 0/
a
The water flow rate as determined at the standard rating conditions of fixed capacity heat pumps.
Table 10 — Part load conditions of water-to-air and brine-to-air units in heating mode or the reference
heating season “C” = colder
C
Indoor heat
Outdoor heat exchanger
exchanger
Part load ratio
Ground water Brine Indoor air
Part
load
ratio
Indoor
%
Inlet/outlet Inlet/outlet dry temperatures dry
temperatures °C (wet) bulb °C bulb °C
A (−7–16)/(Tdesignh-16) 61 a a 20
10/ 0/
B (+2–16)/(Tdesignh-16) 37 a a 20
10/ 0/
C (+7–16)/(Tdesignh-16) 24 a a 20
10/ 0/
D (+12–16)/(Tdesignh-16) 11 a a 20
10/ 0/
F (Tbivalent-16)/(Tdesignh-16) a a 20
10/ 0/
a
The water flow rate as determined at the standard rating conditions of fixed capacity heat pumps.
5.4 Air-to-water units
5.4.1 General
For each application, units either allowing or not allowing a variation of the outlet water temperature with the
outdoor temperature are considered. The variable outlet temperature shall only be applied when the control
provides a regulation of outlet water temper
...
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