Gas-fired domestic appliances producing hot water - Part 4: Assessment of energy consumption of gas combined heat and power appliances (mCHP) producing hot water and electricity

This European Standard is applicable to gas-fired mCHP appliances producing domestic hot water and electricity. The electricity is generated in a process linked to the production of useful heat.
It applies to a mCHP appliances marketed as single unit or as a package fully specified by a manufacturer that have:
-   a gas heat input not exceeding 70 kW;
-   an electrical output not exceeding 50 kW and
-   a hot water storage capacity not exceeding 500 l.
EN 13203 1 sets out in qualitative and quantitative terms the performance in delivery of domestic hot water for a variety of uses. It also gives a system for presenting the information to the user.
The present document sets out a method for assessing the energy performance of gas fired mCHP appliances. It defines a number of daily tapping cycles for each domestic hot water use, kitchen, shower, bath and a combination of these, together with corresponding test procedures, enabling the energy performances of different gas-fired appliances to be compared and matched to the needs of the user.
When the mCHP generator does not supply domestic hot water in the summer period, the present standard is not applicable. EN 13203 2 will be used for performance assessment of these generators.

Gasbeheizte Geräte für die sanitäre Warmwasserbereitung für den Hausgebrauch - Teil 4: Bewertung des Energieverbrauchs von Gasgeräten mit Kraft-Wärme-Kopplung (Mikro-KWK) zur Warmwasserbereitung und Stromerzeugung

Diese Europäische Norm ist anwendbar auf gasbefeuerte Geräte mit Mikro-Kraft-Wärme-Kopplung (µKWK-Geräte), die häusliches sanitäres Warmwasser und elektrische Energie bereitstellen. Die elektrische Energie wird in einem Prozess erzeugt, der mit der Bereitstellung von Nutzwärme verbunden ist.
Sie ist anzuwenden auf µKWK-Geräte, die als Einheit vermarktet werden oder für Systeme, die von einem Hersteller umfassend beschrieben sind und:
-   eine Gaswärmebelastung von 70 kW nicht überschreiten,
-   eine elektrische Leistung von 50 kW nicht überschreiten und
-   ein Warmwasserspeichervolumen von 500 l nicht überschreiten.
EN 13203 1 legt mehrere qualitative und quantitative Leistungsstufen für die sanitäre Warmwasserbereitung für eine Auswahl von Benutzungsarten fest. Sie enthält ebenfalls ein System zur Bereitstellung von Angaben für den Betreiber.
Das vorliegende Dokument legt ein Verfahren zur Bewertung des Energieverhaltens der gasbefeuerten µKWK-Geräte fest. Es definiert eine Anzahl täglicher Zapfprogramme für die häusliche Warmwasser¬verwendung in der Küche, zum Duschen und Baden und für Kombinationen dieser Verwendungsarten und legt die entsprechenden Prüfverfahren fest, die den Vergleich des Energieverhaltens unterschiedlicher gasbe¬feuerter Geräte ermöglichen und auf die Bedürfnisse des Benutzers ausgerichtet sind.
Wenn der µKWK-Generator im Sommer kein sanitäres Warmwasser liefert, ist die vorliegende Norm nicht anwendbar. Zur Bewertung der Leistung dieser Generatoren wird die EN 13203-2 angewendet.

Appareils domestiques produisant de l'eau chaude sanitaire utilisant les combustibles gazeux - Evaluation de la consommation énergétique des appareils à gaz de production combinée de chaleur et d'électricité (mCHP) produisant de l'eau chaude et de l'électricité

Plinske gospodinjske naprave za pripravo tople sanitarne vode - 4. del: Ocenjevanje rabe energije plinskih naprav za soproizvodnjo tople vode in elektrike (mCHP)

Ta evropski standard se uporablja za plinske naprave za soproizvodnjo tople vode in elektrike (mCHP). Električna energija se proizvaja v procesu, povezanim s proizvodnjo uporabne toplote.
Uporablja se za vse naprave mCHP, ki so na trgu na voljo kot ena enota ali kot paket in pri katerih po navedbah proizvajalca:
– toplotna moč plina ne presega 70 kW;
– električna moč ne presega 50 kW in
– prostornina za vročo vodo ne presega 500 l.
Standard EN 13203 1 v kakovostnem in količinskem smislu določa zmogljivost za pripravo tople sanitarne vode za različne namene. Zajema tudi sistem za predstavitev informacij uporabniku.
Ta dokument določa metodo za ocenjevanje energetske učinkovitosti plinskih naprav mCHP. Določa število dnevnih ciklov izpuščanja za vsako uporabo gospodinjske tople vode, kuhinjo, prho, kad in njihove kombinacije, skupaj z ustreznimi preskusnimi postopki, za omogočanje energijske zmogljivosti različnih plinskih naprav za primerjavo in uskladitev s potrebami uporabnika.
Ko generator mCHP ne dobavlja tople sanitarne vode v poletnem obdobju, se trenutni standard ne uporablja. Za oceno zmogljivosti takšnih generatorjev se bo uporabljal standard EN 13203 2.

General Information

Status
Published
Publication Date
25-Oct-2016
Current Stage
6060 - Definitive text made available (DAV) - Publishing
Due Date
26-Oct-2016
Completion Date
26-Oct-2016

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SLOVENSKI STANDARD
SIST EN 13203-4:2017
01-april-2017
Plinske gospodinjske naprave za pripravo tople sanitarne vode - 4. del:
Ocenjevanje porabe energije plinskih naprav za soproizvodnjo tople vode in
elektrike (mCHP)
Gas-fired domestic appliances producing hot water - Part 4: Assessment of energy
consumption of gas combined heat and power appliances (mCHP) producing hot water
and electricity

Gasbeheizte Geräte für die sanitäre Warmwasserbereitung für den Hausgebrauch - Teil

4: Bewertung des Energieverbrauchs von Gasgeräten mit Kraft-Wärme-Kopplung (Mikro-

KWK) zur Warmwasserbereitung und Stromerzeugung

Appareils domestiques produisant de l'eau chaude sanitaire utilisant les combustibles

gazeux - Partie 4: Évaluation de la consommation énergétique des appareils à gaz de

production combinée de chaleur et d'électricité (mCHP) produisant de l'eau chaude et de

l'électricité
Ta slovenski standard je istoveten z: EN 13203-4:2016
ICS:
91.140.65 Oprema za ogrevanje vode Water heating equipment
SIST EN 13203-4:2017 en,fr,de

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 13203-4:2017
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SIST EN 13203-4:2017
EN 13203-4
EUROPEAN STANDARD
NORME EUROPÉENNE
October 2016
EUROPÄISCHE NORM
ICS 91.140.65
English Version
Gas-fired domestic appliances producing hot water - Part
4: Assessment of energy consumption of gas combined
heat and power appliances (mCHP) producing hot water
and electricity

Appareils domestiques produisant de l'eau chaude Gasbeheizte Geräte für die sanitäre

sanitaire utilisant les combustibles gazeux - Partie 4: Warmwasserbereitung für den Hausgebrauch - Teil 4:

Évaluation de la consommation énergétique des Bewertung des Energieverbrauchs von Gasgeräten mit

appareils à gaz de production combinée de chaleur et Kraft-Wärme-Kopplung (Mikro-KWK) zur

d'électricité (mCHP) produisant de l'eau chaude et de Warmwasserbereitung und Stromerzeugung

l'électricité
This European Standard was approved by CEN on 6 August 2016.

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, 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

© 2016 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 13203-4:2016 E

worldwide for CEN national Members.
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SIST EN 13203-4:2017
EN 13203-4:2016 (E)
Contents Page

European foreword ....................................................................................................................................................... 4

1 Scope .................................................................................................................................................................... 5

2 Normative references .................................................................................................................................... 5

3 Terms and definitions ................................................................................................................................... 5

4 General test conditions ................................................................................................................................. 8

4.1 Reference conditions ..................................................................................................................................... 8

4.2 Measurement uncertainties ........................................................................................................................ 8

4.3 Test conditions ................................................................................................................................................. 9

4.3.1 General ................................................................................................................................................................ 9

4.3.2 Test room ........................................................................................................................................................... 9

4.3.3 Water supply ..................................................................................................................................................... 9

4.3.4 Steady-state ....................................................................................................................................................... 9

4.3.5 Initial adjustment of the appliance ........................................................................................................... 9

4.3.6 Electrical supply ........................................................................................................................................... 10

4.3.7 Delivered electrical energy ...................................................................................................................... 10

5 Determination of the energy consumption and electrical energy generation of the

appliance ......................................................................................................................................................... 10

5.1 General ............................................................................................................................................................. 10

5.2 Tapping cycles ............................................................................................................................................... 10

Table 1 – Load profile S ............................................................................................................................................ 12

Table 2 – Load profile M ........................................................................................................................................... 13

Table 3 – Load profile L ............................................................................................................................................ 14

Table 4 – Load profile XL ......................................................................................................................................... 15

Table 5 – Load profile XXL ....................................................................................................................................... 16

Table 6 – Load profile 3XL ....................................................................................................................................... 17

Table 7 – Load profile 4XL ....................................................................................................................................... 18

5.3 Measurement of the energy recovered by the useful water ......................................................... 19

5.4 Calculation of gas energy ........................................................................................................................... 19

5.4.1 Calculation of the daily gas energy consumption in summer mode .......................................... 19

5.4.2 Calculation of daily gas energy consumption in winter mode ..................................................... 20

5.4.3 Daily gas energy consumption seasonally weighted ....................................................................... 20

5.5 Calculation of electrical energy ............................................................................................................... 21

5.5.1 Calculation of the delivered electrical energy ................................................................................... 21

Figure 1 – Electrical measurements – Test points .......................................................................................... 21

5.5.2 Calculation of the produced electrical energy ................................................................................... 23

5.5.3 Calculation of electrical auxiliary energy ............................................................................................ 24

5.6 Measurement of energy consumption and production in standby mode ................................ 24

5.6.1 General ............................................................................................................................................................. 24

5.6.2 Calculation of daily gas energy consumption in standby mode .................................................. 24

5.6.3 Calculation of daily auxiliary energy in standby mode .................................................................. 25

5.7 Measurement of auxiliaries consumption in off mode ................................................................... 26

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SIST EN 13203-4:2017
EN 13203-4:2016 (E)

6 Determination of the wasted water ....................................................................................................... 26

7 Eco design Related Product Data ............................................................................................................ 27

7.1 Water heating energy efficiency.............................................................................................................. 27

7.2 Annual fuel consumption (AFC) .............................................................................................................. 28

7.3 Annual electricity delivery (AED) ........................................................................................................... 28

Annex A (informative) Examples of test conditions ..................................................................................... 30

A.1 Diagrams of test conditions ...................................................................................................................... 30

Figure A.1 —Initial adjustment of the appliance with storage tank maintained in

temperature.................................................................................................................................................... 30

Figure A.2 —Initial adjustment of the appliance without storage tank maintained in

temperature.................................................................................................................................................... 31

Figure A.3 – Tapping cycle – Test cycle for measurement of the energy consumption of the

appliance with storage tank maintained in temperature .............................................................. 32

Figure A.4 – Standby mode with control cycles ................................................................................................ 33

Annex B (informative) Test rig and measurement devices ........................................................................ 34

B.1 General ............................................................................................................................................................. 34

Figure B.1 – Example of test rig .............................................................................................................................. 34

B.2 Pressure measurement .............................................................................................................................. 35

Figure B.2 — Example of pressure measurement device ............................................................................. 35

B.3 Temperature measurement ..................................................................................................................... 35

Figure B.3 — Example of temperature measurement device ..................................................................... 36

Figure B.4 — Example of position of thermocouples - Method of surfaces ............................................ 37

Figure B.5 — Useful and delivered flow rates and temperatures ............................................................. 38

Annex C (normative) Test points ......................................................................................................................... 39

Figure C.1 – Thermal performances for mCHP systems with combined storage tank for

central heating and domestic hot water – Test points .................................................................... 39

Figure C.2 – Thermal performances for mCHP systems with storage tank for domestic hot

water only – Test points ............................................................................................................................. 40

Annex ZA (informative) Relationship between this European Standard and the

requirements of Commission Regulation (EC) n° 814/2013 ........................................................ 41

Table ZA.1 — Correspondence between this European Standard and Commission

Regulation (EC) n° 814/2013 ................................................................................................................... 41

Annex ZB (informative) Relationship between this European Standard and the

requirements of Commission Regulation n° 812/2013 .................................................................. 42

Table ZB.1 — Correspondence between this European Standard and Commission

Regulation (EC) n° 812/2013 ................................................................................................................... 42

Annex ZC (informative) Relationship between this European Standard and the

requirements of Commission Regulation (EU) n° 813/2013 ........................................................ 43

Table ZC.1 — Correspondence between this European Standard and Commission

Regulation (EC) n° 813/2013 ................................................................................................................... 43

Annex ZD (informative) Relationship between this European Standard and the

requirements of Commission Delegated Regulation (EU) n° 811/2013 ................................... 44

Table ZD.1 — Correspondence between this European Standard and Commission

Regulation (EC) n° 811/2013 ................................................................................................................... 44

Bibliography ................................................................................................................................................................. 45

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SIST EN 13203-4:2017
EN 13203-4:2016 (E)
European foreword

This document (EN 13203-4:2016) has been prepared by Technical Committee CEN/TC 109 “Central

heating boilers using gaseous fuels”, the secretariat of which is held by NEN.

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 April 2017, and conflicting national standards shall be

withdrawn at the latest by April 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, B, C or D, which is an integral part of

this document.

The safety operation of the boiler is not covered by this standard. Safety is proved by means of the

essential safety requirements of the Gas Appliances Directive 2009/142/EC. This way be achieved by

compliance with the appropriate existing harmonized standards.

NOTE Useful standards are EN 26, EN 89, EN 15502–1, EN 15502–2–1, EN 15502–2–2 and EN 50465:2015.

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, Slovakia, Slovenia, Spain, Sweden, Switzerland,

Turkey and the United Kingdom.
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SIST EN 13203-4:2017
EN 13203-4:2016 (E)
1 Scope

This European Standard is applicable to gas-fired mCHP appliances producing domestic hot water and

electricity. The electricity is generated in a process linked to the production of useful heat.

It applies to a mCHP appliances marketed as single unit or as a package fully specified by a

manufacturer that have:
— a gas heat input not exceeding 70 kW;
— an electrical output not exceeding 50 kW and
— a hot water storage capacity not exceeding 500 l.

EN 13203-1 sets out in qualitative and quantitative terms the performance in delivery of domestic hot

water for a variety of uses. It also gives a system for presenting the information to the user.

The present document sets out a method for assessing the energy performance of gas fired mCHP

appliances. It defines a number of daily tapping cycles for each domestic hot water use, kitchen, shower,

bath and a combination of these, together with corresponding test procedures, enabling the energy

performances of different gas-fired appliances to be compared and matched to the needs of the user.

When the mCHP generator does not supply domestic hot water in the summer period, the present

standard is not applicable. EN 13203-2 is used for performance assessment of these generators.

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 13203-1, Gas fired domestic appliances producing hot water - Part 1: Assessment of performance of

hot water deliveries

EN 13203-2, Gas-fired domestic appliances producing hot water - Part 2: Assessment of energy

consumption
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
storage tank
reservoir for domestic hot water and or central heating water
3.2
nominal domestic hot water heat input (Q )

value of the heat input stated in the appliance instructions for the production of domestic hot water

Note 1 to entry: Q is expressed in kilowatt (kW)
3.3
summer mode

conditions during which the appliance supplies energy only for the production of domestic hot water

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SIST EN 13203-4:2017
EN 13203-4:2016 (E)
3.4
winter mode

conditions during which the combination mCHP appliance supplies energy for the production of

domestic hot water and/or space heating
3.5
domestic water test temperature
temperature of the delivered water at which the tests are conducted
3.6
control cycle

time cycle for keeping components and/or the storage tank (if any) of the domestic hot water circuit at

predetermined temperature level, consisting of an «ON» duration time during which the heating of the

domestic hot water (by gas energy and/or auxiliary energy) is operating, and an «OFF» duration time

during which no heating occurs
3.7
useful water

quantity of water delivered at the tap for which the temperature increase is in accordance with the

requirement fixed for each individual delivery of the tapping cycles
3.8
wasted water

quantity of water delivered at the tap for which the temperature increase is not in accordance with the

requirement fixed for each individual delivery of the tapping cycles
3.9
standby mode

operating state in which the appliance can provide domestic hot water at any time

Note 1 to entry: In the case of an appliance with a control cycle for keeping components and/or the storage tank

(if any) of the domestic hot water circuit at predetermined temperature level no tapping is made.

3.10
off mode

state of an appliance, selected by the user, in which domestic hot water cannot be provided

3.11
mCHP appliance

appliance which is placed on the market either as a complete package or specified as a complete

package to deliver safely and effectively the heating, electrical power and the domestic hot water

service claimed, comprising as relevant:
— primary heat and power generator;
— supplementary heat generator;
— flue ducts;
— thermal store
3.12
mCHP generator
preferential heat and power generator
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SIST EN 13203-4:2017
EN 13203-4:2016 (E)
3.13
supplementary heat generator
non-preferential heat source providing peak load
3.14
power conditioning and control system

equipment used to change electrical voltage level and waveform, or otherwise alter or regulate the

electrical output of the primary heat and power generator to make it suitable and safe for export to

other components within or outside the appliance including controls used to operate the primary heat

and power generator such a gas valve, safety controls and internal cooling pumps
3.15
electric auxiliary energy (E )
Auxiliary

electric energy consumed by the mCHP appliance components associated with the supplementary heat

generator, thermal management and controls (e.g. pump, fan, valves, control unit)

Note 1 to entry: E is expressed in kWh
Auxiliary
3.16
produced electrical energy (E )
CHP
electrical energy produced by the mCHP generator
Note 1 to entry: E is expressed in kWh
CHP
3.17
delivered electrical energy (E )
delivered
electrical energy delivered by the mCHP appliance to the grid
Note 1 to entry: E is expressed in kWh
delivered
3.18
useful water flow rate

flow rate of water delivered at the tap for which the temperature increase is in accordance with the

requirement fixed for each individual delivery of the tapping cycles
3.19
useful water temperature
water temperature, expressed in degrees Celsius, delivered at the tap
3.20
appliance flow rate
flow rate delivered by the appliance before the mixing device, if applicable
3.21
appliance water temperature (T )

water temperature, expressed in degrees Celsius, delivered by the appliance before the mixing device

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SIST EN 13203-4:2017
EN 13203-4:2016 (E)
4 General test conditions
4.1 Reference conditions
Unless otherwise stated, the general test conditions shall be as follows:
— cold water temperature: 10°C
— maximum average variation over the test period: ± 2 K
— cold water pressure: (2 ± 0,1) bar;
— ambient air temperature: 20°C
— maximum average variation over the test period ± 1 K
— maximum variation during the tests ± 2 K
— electrical supply voltage:
— (230 ± 2) V single phase;
— (410 ± 4) V three phase.
4.2 Measurement uncertainties

Except where otherwise stated in the clauses describing the tests, the uncertainties of measurements

carried out shall not be greater than the maximum uncertainties indicated below.

The following deviations take into account the various sources of uncertainty: contribution from the

instrument, repeatability, calibration, ambient conditions, etc.
— water rate: ± 1 %;
— gas rate: ± 1 %;
— time: ± 0,2 s;
— temperatures:
— ambient: ± 1 K;
— water: ± 0,5 K;
— gas: ± 0,5 K;
— mass: ± 0, 5 %;
— gas pressure: ± 1 %;
— gas calorific value: ± 1 %;
— gas density: ± 0,5 %;
— electrical auxiliary energy: ± 2 %;
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SIST EN 13203-4:2017
EN 13203-4:2016 (E)
— electrical generated energy: ± 2 %.

The stated measurement uncertainties relate to individual measurements. For measurements that

combine a number of individual measurements, smaller uncertainties on the individual measurements

may be necessary to ensure a total uncertainty within ± 2 % under the steady-state conditions.

These uncertainties correspond to two standard deviations (2σ).
4.3 Test conditions
4.3.1 General

The tests shall be carried out in the summer mode when the mCHP generator of the appliance is

producing domestic hot water only.

For all tests defined by this standard, the same adjustment of the appliance shall be maintained.

4.3.2 Test room

The appliance shall be installed in a well-ventilated, draught-free room (air speed less than 0,5 m/s).

The appliance shall be protected from direct solar radiation and radiation from heat generators.

4.3.3 Water supply
For the tests:

— the domestic water pressure is the static inlet pressure under dynamic conditions measured as

close as possible to the appliance;

— the inlet and outlet temperatures of the domestic water shall be measured in the centre of the flow

and as close as possible to the appliance.

The inlet temperatures shall be measured immediately upstream of the water inlet connection. Except

where otherwise stated, the outlet temperatures shall be measured immediately downstream of the

outlet connection or, in the case of an appliance with spout delivery, by means of an immersed

temperature measuring device, e.g. a u-tube fitted at the outlet of a tube of the same length as the

minimum length of the spout normally supplied with the appliance.
The hot water temperature shall be measured with a rapid response thermometer.

“Rapid response thermometer” means a measuring instrument with a response time such that 90 % of

the final temperature rise, from 15 °C to 100 °C, is obtained within about 1 s, when the sensor is

plunged into still water.
4.3.4 Steady-state

Steady-state operating conditions shall be regarded as established when the appliance operates for

sufficient time to reach thermal stabilization. The steady-state is reached when the water temperature

at the outlet does not vary by more than ± 0,5 K.

NOTE This condition can be reached with a gas that is different from the specified test gas, provided that the

appliance is supplied with the specified test gas for at least 5 min before the requirements are verified.

4.3.5 Initial adjustment of the appliance
The appliance shall be installed in accordance with the appliance instructions.

The heat input shall be adjusted to within ± 2 % of the nominal domestic hot water heat input.

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SIST EN 13203-4:2017
EN 13203-4:2016 (E)

The delivered water temperature (T ) at the appliance outlet shall be as follows (see Figures A.1 and

A.2):

a) appliances with an adjustable temperature: the tests shall be carried out at a temperature not

greater than 65 °C, with a minimum temperature increase equal to or greater than 45 K above cold

water inlet temperature.

b) appliances with a fixed temperature: the tests shall be carried out at the temperature specified in

the appliance instructions, with a minimum temperature increase equal to or greater than 45 K

above cold water inlet temperature.

The same conditions of initial adjustment stated in the instructions shall be used for all the tests.

These conditions shall be included in the test report.
4.3.6 Electrical supply

The appliance shall be supplied with the nominal voltage or a voltage included within the range of

nominal voltages stated in the installation instructions.
4.3.7 Delivered electrical energy

Arrangement shall be made to enable the delivered electrical energy to be measured.

NOTE The delivered electrical energy to be measured may be dissipated by a resistor or exported to the grid.

5 Determination of the energy consumption and electrical energy generation of
the appliance
5.1 General

This clause defines the test methods to be employed in determining the energy consumption and

electrical energy generation of appliances.
5.2 Tapping cycles

All patterns define a 24 h measurement cycle and within that cycle the starting times and the total

energy content (in kWh equivalent of hot water tapped) of each draw-off are defined.

Furthermore, the draw-off can be characterized in two ways, either “basin” type draw-off versus

“continuous flow” draw-off.

The aim of the “basin” type is to arrive at an average temperature of the tub, so all supplied energy can

be considered useful from the very beginning of the draw-off (minimum useful temperature increase is

0 K). The average temperature rising (ΔT) to be achieved during tapping, shall be for floor cleaning and

bath 30 K and for the dish washes 45
...

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