EN 15316-4-2:2017

Energy performance of buildings - Method for calculation of system energy requirements and system efficiencies - Part 4-2: Space heating generation systems, heat pump systems, Module M3-8-2, M8-8-2

This European Standard covers heat pumps for space heating, heat pump water heaters (HPWH) and heat pumps with combined space heating and domestic hot water production in alternate or simultaneous operation, where the same heat pump delivers the heat to cover the space heating and domestic hot water heat requirement.
The standard provides a calculation method under steady conditions that corresponds to one calculation step.
The results of this calculation are incorporated in larger building models and take in account the influence of the external conditions and building control that influence the energy requirements for heating supplied by the heat pump system.
The scope of this part is to standardize the:
-   required inputs;
-   calculation methods;
-   required outputs
Generation for space heating and domestic hot water production of the following heat pump systems, including control of:
-   electrically-driven vapour compression cycle (VCC) heat pumps;
-   combustion engine-driven vapour compression cycle heat pumps;
-   thermally-driven vapour absorption cycle (VAC) heat pumps,
using combinations of heat source and heat distribution listed in Table 1.
This standard does not cover sizing or inspection of heat pumps.
This standard deals with heat generators for heating or for combined domestic hot water and heating service. Generators for domestic hot water only are taken into account into module M8-8.
NOTE 1   Heat pumps for cooling systems are taken into account into module M4–8.
NOTE 2   Heat pumps for space heating using air (distribution) are taken into account in module M5–8.
Other generation systems such as boilers are covered in other sub modules of part M3-8.
This is the revision of EN 15316 4 2:2008. The revision covers the adaptation of the standard to hourly and monthly energy calculation.
Table 2 shows the relative position of this standard within the set of EPB standards in the context of the modular structure as set out in prEN ISO 52000 1.
NOTE 1   In prCEN ISO/TR 52000 2 the same table can be found, with, for each module, the numbers of the relevant EPB standards and accompanying technical reports that are published or in preparation.
NOTE 2   The modules represent EPB standards, although one EPB standard may cover more than one module and one module may be covered by more than one EPB standard, for instance a simplified and a detailed method
respectively. See also Clause 2 and Tables A.1 and B.1.

Energetische Bewertung von Gebäuden - Verfahren zur Berechnung der Energieanforderungen und Nutzungsgrade der Anlagen - Teil 4-5: Fernwärme und Fernkälte, Modul M3-8-5, M4-8-5, M8-8-5, M11-8-5

Diese Europäische Norm deckt Wärmepumpen für die Raumheizung, Wärmepumpenwarmwasserbereiter (HPWH) und Wärmepumpen für die kombinierte Nutzung zur Raumheizung und Trinkwassererwärmung im Alternativ  oder Simultanbetrieb, bei denen die zur Deckung des Bedarfs für die Raumheizung und die Trinkwassererwärmung erforderliche Wärme von ein und derselben Wärmepumpe geliefert wird, ab.
Diese Norm stellt ein Berechnungsverfahren für Beharrungsbedingungen zur Verfügung, das einem Berechnungsschritt entspricht.
Die Ergebnisse dieser Berechnung werden in größere Gebäudemodelle einbezogen und tragen dem Einfluss der äußeren Bedingungen und der Gebäudeleittechnik Rechnung, soweit diese Einfluss auf die Energieanforderungen des für Heizzwecke verwendeten Wärmepumpensystems haben.
Ziel des vorliegenden Teils ist die Normung der:
—   notwendigen Eingabedaten;
—   Berechnungsverfahren;
—   notwendigen Ausgabedaten.
Erzeugung für die Raumheizung und die Trinkwassererwärmung durch die folgenden Wärme-pumpensysteme, einschließlich Regelung von:
—   elektrisch angetriebenen Kompressions-Wärmepumpen (en: vapour compression cycle, VCC);
—   verbrennungsmotorisch angetriebenen Kompressions-Wärmepumpen;
—   thermisch angetriebenen Dampfabsorptions-Wärmepumpen (en: vapour absorption cycle, VAC),
mit den in Tabelle 1 aufgeführten Kombinationen von Wärmequelle und Wärmeverteilung

Performance énergétique des bâtiments - Méthode de calcul des besoins énergétiques et des rendements des systèmes - Partie 4-2 : Systèmes de génération de chauffage des locaux, systèmes de pompes à chaleur Module M3-8-2, M8-8-2

La présente Norme européenne traite des pompes à chaleur pour le chauffage des locaux, des systèmes de chauffage de l’eau par pompe à chaleur et des pompes à chaleur utilisées à la fois pour le chauffage des locaux et la production d’eau chaude sanitaire en fonctionnement alterné ou simultané, où une seule et même pompe à chaleur fournit la chaleur nécessaire pour assurer les besoins en énergie calorifique pour le chauffage des locaux et la production d’eau chaude sanitaire.
La norme fournit une méthode de calcul dans des conditions stables qui correspondent à un pas de calcul.
Les résultats de ce calcul sont intégrés à de plus grands modèles de bâtiment et tiennent compte de l’influence des conditions extérieures et de la régulation du bâtiment sur les besoins énergétiques pour le chauffage satisfaits par le système de chauffage par pompe à chaleur.
L’objet de cette partie est de normaliser :
-   les données d’entrée requises ;
-   les méthodes de calcul ;
-   les données de sortie requises.
La génération pour le chauffage des locaux et la production d’eau chaude sanitaire des systèmes de chauffage par pompe à chaleur suivants, régulation comprise :
-   pompes à chaleur à compression de vapeur (VCC) à moteur électrique ;
-   pompes à chaleur à compression de vapeur à moteur à combustion ;
-   pompes à chaleur à absorption de vapeur (VAC) entraînées thermiquement ;
à l’aide des combinaisons de source de chaleur et de vecteur de distribution de chaleur listées dans le Tableau 1.

Energijske lastnosti stavb - Metoda za izračun energijskih zahtev in učinkovitosti sistema - 4-2. del: Sistemi za pridobivanje toplote za ogrevanje, toplotne črpalke - Modula M3-8-2 in M8-8-2

Standard zajema toplotne črpalke za ogrevanje prostora, grelnike vode s toplotno črpalko (HPWH) in toplotne črpalke s kombinirano proizvodnjo gospodinjske tople vode in ogrevanjem prostora v izmeničnem ali hkratnem delovanju, kjer ista toplotna črpalka dovaja toploto in tako pokriva zahteve po ogrevanju prostora in gospodinjske tople vode.
Standard nudi računsko metodo pod stabilnimi pogoji, ki ustrezajo enemu koraku izračuna.
Rezultati tega izračuna so vdelani v modele večjih stavb in upoštevajo vpliv zunanjih pogojev in nadzor stavbe, ki vpliva na energijske zahteve za ogrevanje s pomočjo sistemov toplotnih črpalk.
Namen tega dela je standardizirati:
– zahtevane vhode;
– računske metode;
– zahtevane izhode
za izhode termoelektrarn, za ogrevanje prostora in gospodinjsko toplo vodo naslednjih sistemov toplotnih črpalk, vključno z nadzorom:
– toplotne črpalke s ciklusom stiskanja hlapov (VCC) z električnim pogonom;
– toplotne črpalke s ciklusom stiskanja hlapov s pomočjo motorja z notranjim izgorevanjem;
– toplotne črpalke s ciklusom absorpcije hlapov s pomočjo toplote
s kombinacijami toplotnih virov in razporeditve toplote, naštetimi v preglednici 1.
Ta standard ne zajema ugotavljanja velikosti ali nadzora toplotnih črpalk.
Ta standard se uporablja za generatorje toplote za ogrevanje ali za kombinirano storitev gospodinjske tople vode in ogrevanja. Generatorji za gospodinjsko toplo vodo so upoštevani samo v modulu M8-8.
OPOMBA 1 Generatorji toplotnih črpalk za sisteme za hlajenje so upoštevani v modulu M4-8.
OPOMBA 2 Generatorji toplotnih črpalk za ogrevanje prostora s pomočjo zraka (razporejanje) so upoštevani v modulu M5-8.
Drugi sistemi proizvodnje, kot so kotli, so zajeti v drugih podmodulih dela M3-8.
To je revizija standarda EN 15316-4-2:2008. Revizija zajema prilagajanje standarda urnim in mesečnim izračunom energije.

General Information

• Status: Published
• Publication Date: 25-Apr-2017
• Withdrawal Date: 30-Oct-2017
• ICS: 91.140.10 - Central heating systems
• Technical Committee: CEN/TC 228 - Heating systems in buildings
• Drafting Committee: CEN/TC 228/WG 4 - Calculation methods and system performance and evaluation
• Current Stage: 9060 - Closure of 2 Year Review Enquiry - Review Enquiry
• Start Date: 04-Mar-2023
• Completion Date: 04-Mar-2023
• Directive: 2010/31/EU - Directive 2010/31/eu of the European Parliament and of the Council of 19 May 2010 on the energy performance of buildings (recast)
• Mandate: M/480 - Mandate to CEN, CENELEC and ETSI for the elaboration and adoption of standards for a methodology calculating the integrated energy performance of buildings and promoting the energy efficiency of buildings, in accordance with the terms set in the recast of the Directive on the energy performance buildings (2010/31/EU)
• Ref Project: SIST EN 15316-4-2:2018 - Energy performance of buildings - Method for calculation of system energy requirements and system efficiencies - Part 4-2: Space heating generation systems, heat pump systems, Module M3-8-2, M8-8-2

Relations

• Replaces: EN 15316-4-2:2008 - Heating systems in buildings - Method for calculation of system energy requirements and system efficiencies - Part 4-2: Space heating generation systems, heat pump systems
• Effective Date: 03-May-2017
• Corrected By: EN 15316-4-2:2017/AC:2017 - Energy performance of buildings - Method for calculation of system energy requirements and system efficiencies - Part 4-2: Space heating generation systems, heat pump systems, Module M3-8-2, M8-8-2
• Effective Date: 08-Jun-2022
• Revised: prEN 15316-4-2 - Energy performance of buildings - Method for calculation of system energy requirements and system efficiencies - Part 4-2: Space heating generation systems, heat pump systems, Module M3-8-2, M8-8-2
• Effective Date: 12-May-2021

Standards Content (Sample)

SLOVENSKI STANDARD
01-maj-2018
1DGRPHãþD
SIST EN 15316-4-2:2008
(QHUJLMVNHODVWQRVWLVWDYE0HWRGD]DL]UDþXQHQHUJLMVNLK]DKWHYLQXþLQNRYLWRVWL
VLVWHPDGHO6LVWHPL]DSULGRELYDQMHWRSORWH]DRJUHYDQMHWRSORWQHþUSDONH
0RGXOD0LQ0
Energy performance of buildings - Method for calculation of system energy requirements
and system efficiencies - Part 4-2: Space heating generation systems, heat pump
systems, Module M3-8-2, M8-8-2
Energetische Bewertung von Gebäuden - Verfahren zur Berechnung der
Energieanforderungen und Nutzungsgrade der Anlagen - Teil 4-2: Wärmeerzeugung für
die Raumheizung, Wärmepumpensysteme, Modul M3-8-2, M8-8-2
Performance énergétique des bâtiments - Méthode de calcul des besoins énergétiques
et des rendements des systèmes - Partie 4-2 : Systèmes de génération de chauffage
des locaux, systèmes de pompes à chaleur Module M3-8-2, M8-8-2
Ta slovenski standard je istoveten z: EN 15316-4-2:2017
ICS:
27.080 7RSORWQHþUSDONH Heat pumps
91.140.10 Sistemi centralnega Central heating systems
ogrevanja
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN 15316-4-2
EUROPEAN STANDARD
NORME EUROPÉENNE
April 2017
EUROPÄISCHE NORM
ICS 91.140.10 Supersedes EN 15316-4-2:2008
English Version
Energy performance of buildings - Method for calculation
of system energy requirements and system efficiencies -
Part 4-2: Space heating generation systems, heat pump
systems, Module M3-8-2, M8-8-2
Performance énergétique des bâtiments - Méthode de Energetische Bewertung von Gebäuden - Verfahren zur
calcul des besoins énergétiques et des rendements des Berechnung der Energieanforderungen und
systèmes - Partie 4-2 : Systèmes de génération de Nutzungsgrade der Anlagen - Teil 4-2:
chauffage des locaux, systèmes de pompes à chaleur Wärmeerzeugung für die Raumheizung,
Module M3-8-2, M8-8-2 Wärmepumpensysteme, Modul M3-8-2, M8-8-2
This European Standard was approved by CEN on 27 February 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: Avenue Marnix 17, B-1000 Brussels
© 2017 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 15316-4-2:2017 E
worldwide for CEN national Members.

Contents Page
European foreword . 4
Introduction . 5
1 Scope . 6
2 Normative references . 9
3 Terms and definitions . 9
4 Symbols and abbreviations . 13
4.1 Symbols . 13
4.2 Subscripts . 13
5 Description of the methods . 14
5.1 General . 14
5.2 Multiple heat generators . 14
5.3 System boundary . 15
5.3.1 General . 15
5.3.2 Physical factors taken into account: . 15
5.4 Schematisation of the heat pump for heating . 15
5.5 Energy input needed to meet the heat requirements for heat pumps system. 16
5.6 Auxiliary energy (W ) . 18
HW;gen;aux
5.7 Recoverable, recovered and unrecoverable heat losses . 18
5.8 Calculation by zones . 18
5.9 Combined heating and domestic hot water preparation . 19
6 Generation with heat pump systems - Energy calculation (hourly, bin) – Method A . 19
6.1 Output data . 19
6.2 Input data . 20
6.3 Multiple heat generators . 26
6.4 Calculation time steps . 26
6.5 Flow chart . 26
6.6 Energy requirements for space heating and DHW mode for the time step considered . 27
6.7 COP and energy used for heating, storage and domestic hot water . 28
6.8 Auxiliary energy (W ) . 39
H;gen;aux
6.9 Energy used from the heat source. 39
6.10 Calculation of back-up heater . 40
6.11 Total losses and total recoverable heat losses of the generation subsystem. 40
7 Method B – Monthly and annual energy calculation method . 43
7.1 Calculation time steps . 43
7.2 Output data . 43
7.3 Principle of the calculation method B. 43
7.4 Additional input Data . 44
7.5 Construction of the bins – Step 1 . 46
7.6 Determination of energy requirement of the single bins – Step 2 . 50
7.7 Determination of thermal performance of the heat pump (step 3) . 52
7.8 Determination of back-up energy of the single bins (step 4) . 53
7.9 Calculation of auxiliary energy input (step 5) . 53
7.10 Calculation of recoverable generation subsystem losses (step 6) . 53
7.11 Calculation of the energy from the heat source (step 7) . 54
7.12 Calculation of the total driving energy input to cover the requirements (step 8) . 54
8 Quality control . 54
8.1 Hourly, bin or monthly method . 54
8.2 Main sources of errors . 55
9 Compliance check . 55
Annex A (normative) Template for input data . 56
A.1 Heat pump description data . 56
A.2 System design data . 60
A.3 Operating conditions . 62
Annex B (informative) Default values . 64
B.1 Heat pump description data . 64
B.2 System design data . 68
B.3 - Operating conditions . 70
Annex C (informative) Tables of COP and energy at full load . 72
C.1 General . 72
C.2 Air – Water electrically driven heat pumps . 72
C.3 COP and energy for exhaust air/ water electrically driven heat pump . 73
C.4 COP and energy for water or brine/ water electrically driven heat pump . 74
C.5 Air/water combustion-engine driven heat pumps . 75
Annex D (normative) Adaptation of the COP to different conditions of temperature
conditions . 77
D.1 Principle . 77
D.2 Application to electrically-driven heat pump . 78
D.3 Application to thermally-driven heat pumps . 78

D.4 Correction of COP with adaptation to the operational temperature spread . 79
D.5 Tests results form EN 14825 . 82
D.6 Input data for the calculation of COP and capacity at operating conditions . 82
Bibliography . 84

European foreword
This document (EN 15316-4-2:2017) has been prepared by Technical Committee CEN/TC 228 “Heating
systems and water based cooling systems in buildings”, the secretariat of which is held by DIN.
This document supersedes EN 15316-4-2:2008.
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 October 2017, and conflicting national standards s
...

SLOVENSKI STANDARD
01-maj-2018
1DGRPHãþD
SIST EN 15316-4-2:2008
(QHUJLMVNHODVWQRVWLVWDYE0HWRGD]DL]UDþXQHQHUJLMVNLK]DKWHYLQXþLQNRYLWRVWL
VLVWHPDGHO6LVWHPL]DSULGRELYDQMHWRSORWH]DRJUHYDQMHWRSORWQHþUSDONH
0RGXOD0LQ0
Energy performance of buildings - Method for calculation of system energy requirements
and system efficiencies - Part 4-2: Space heating generation systems, heat pump
systems, Module M3-8-2, M8-8-2
Energetische Bewertung von Gebäuden - Verfahren zur Berechnung der
Energieanforderungen und Nutzungsgrade der Anlagen - Teil 4-2: Wärmeerzeugung für
die Raumheizung, Wärmepumpensysteme, Modul M3-8-2, M8-8-2
Performance énergétique des bâtiments - Méthode de calcul des besoins énergétiques
et des rendements des systèmes - Partie 4-2 : Systèmes de génération de chauffage
des locaux, systèmes de pompes à chaleur Module M3-8-2, M8-8-2
Ta slovenski standard je istoveten z: EN 15316-4-2:2017
ICS:
27.080 7RSORWQHþUSDONH Heat pumps
91.140.10 Sistemi centralnega Central heating systems
ogrevanja
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN 15316-4-2
EUROPEAN STANDARD
NORME EUROPÉENNE
April 2017
EUROPÄISCHE NORM
ICS 91.140.10 Supersedes EN 15316-4-2:2008
English Version
Energy performance of buildings - Method for calculation
of system energy requirements and system efficiencies -
Part 4-2: Space heating generation systems, heat pump
systems, Module M3-8-2, M8-8-2
Performance énergétique des bâtiments - Méthode de Energetische Bewertung von Gebäuden - Verfahren zur
calcul des besoins énergétiques et des rendements des Berechnung der Energieanforderungen und
systèmes - Partie 4-2 : Systèmes de génération de Nutzungsgrade der Anlagen - Teil 4-5: Fernwärme und
chauffage des locaux, systèmes de pompes à chaleur Fernkälte, Modul M3-8-5, M4-8-5, M8-8-5, M11-8-5
Module M3-8-2, M8-8-2
This European Standard was approved by CEN on 27 February 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.
This document consolidates EN 15316-4-2:2017 and the corrigendum EN 15316-4-2:2017/AC:2017.

EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATIO N

EUROPÄISCHES KOMITEE FÜR NORMUN G

CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2017 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 15316-4-2:2017 E
worldwide for CEN national Members.

Contents Page
European foreword . 4
Introduction . 5
1 Scope . 6
2 Normative references . 9
3 Terms and definitions . 9
4 Symbols and abbreviations . 13
4.1 Symbols . 13
4.2 Subscripts . 13
5 Description of the methods . 14
5.1 General . 14
5.2 Multiple heat generators . 14
5.3 System boundary . 15
5.3.1 General . 15
5.3.2 Physical factors taken into account: . 15
5.4 Schematisation of the heat pump for heating . 15
5.5 Energy input needed to meet the heat requirements for heat pumps system. 16
5.6 Auxiliary energy (W ) . 18
HW;gen;aux
5.7 Recoverable, recovered and unrecoverable heat losses . 18
5.8 Calculation by zones . 18
5.9 Combined heating and domestic hot water preparation . 19
6 Generation with heat pump systems - Energy calculation (hourly, bin) – Method A . 19
6.1 Output data . 19
6.2 Input data . 20
6.3 Multiple heat generators . 26
6.4 Calculation time steps . 26
6.5 Flow chart . 26
6.6 Energy requirements for space heating and DHW mode for the time step considered . 27
6.7 COP and energy used for heating, storage and domestic hot water . 28
6.8 Auxiliary energy (W ) . 39
H;gen;aux
6.9 Energy used from the heat source. 39
6.10 Calculation of back-up heater . 40
6.11 Total losses and total recoverable heat losses of the generation subsystem. 40
7 Method B – Monthly and annual energy calculation method . 43
7.1 Calculation time steps . 43
7.2 Output data . 43
7.3 Principle of the calculation method B. 43
7.4 Additional input Data . 44
7.5 Construction of the bins – Step 1 . 47
7.6 Determination of energy requirement of the single bins – Step 2 . 50
7.7 Determination of thermal performance of the heat pump (step 3) . 52
7.8 Determination of back-up energy of the single bins (step 4) . 53
7.9 Calculation of auxiliary energy input (step 5). 53
7.10 Calculation of recoverable generation subsystem losses (step 6) . 53
7.11 Calculation of the energy from the heat source (step 7) . 54
7.12 Calculation of the total driving energy input to cover the requirements (step 8) . 54
8 Quality control . 54
8.1 Hourly, bin or monthly method . 54
8.2 Main sources of errors . 55
9 Compliance check . 55
Annex A (normative) Template for input data . 56
A.1 Heat pump description data . 56
A.2 System design data . 60
A.3 Operating conditions . 62
Annex B (informative) Default values . 64
B.1 Heat pump description data . 64
B.2 System design data . 68
B.3 - Operating conditions . 70
Annex C (informative) Tables of COP and energy at full load . 72
C.1 General . 72
C.2 Air – Water electrically driven heat pumps . 72
C.3 COP and energy for exhaust air/ water electrically driven heat pump . 73
C.4 COP and energy for water or brine/ water electrically driven heat pump . 74
C.5 Air/water combustion-engine driven heat pumps . 75
Annex D (normative) Adaptation of the COP to different conditions of temperature
conditions . 77
D.1 Principle . 77
D.2 Application to electrically-driven heat pump . 78

D.3 Application to thermally-driven heat pumps . 78
D.4 Correction of COP with adaptation to the operational temperature spread . 79
D.5 Tests results form EN 14825 . 83
D.6 Input data for the calculation of COP and capacity at operating conditions . 83
Bibliography . 85

European foreword
This document (EN 15316-4-2:2017) has been prepared by Technical Committee CEN/TC 228 “Heating
systems and water based cooling systems in buildings”, the secretariat of which is held by DIN.
This document supersedes EN 15316-4-2:2008.
This European Standard shall be given the status of a national standard, either by publication of an
identical
...