Solar supported gas-fired domestic appliances producing hot water - Appliances not exceeding 70 kW heat input and 500 litres water storage capacity - Part 3: Assessment of energy consumption

This European Standard is applicable to solar supported gas-fired appliances producing domestic hot water. It applies to a system marketed as single unit or a system fully specified by a manufacturer that:
-   has a gas heat input not exceeding 70 kW; and
-   has a hot water storage capacity not exceeding 500 l; and
-   is equipped with at least one solar collector; and
-   is, with regard to the solar hydraulic circuit, considered as a forced circulation system (definition according to EN ISO 9488:1999).
The appliances covered by this European Standard are described in Annex C.
This European Standard does not apply to thermo-siphon or integral collector storage systems (definitions according to EN ISO 9488:1999).
NOTE   In principle, the energy consumption of thermo-siphon solar preheat systems and integral collector storage preheat systems can also be assessed on the basis of this standard. One appropriate procedure for that purpose is to calculate the temperature level of the domestic hot water withdrawn from the thermal solar system for the reference conditions defined in this standard by using the numerical system model and the thermal solar system performance parameters according to ISO 9459-5. Based on the temperature level of the hot water withdrawn from the store the energy consumption of the gas appliance should be determined. This determination can either be done by means of calculations or by performing a test according to EN 13203-2 and using instead of the cold water inlet temperature the hot water temperature withdrawn from the store.
This standard is not intended to assess the performance:
-   of the solar collector(s), which should comply with EN 12975-1 and EN 12975-2; and
-   thermal solar systems and components, which should comply with EN 12976-1 and EN 12976-2.
(...)

Solar unterstützte gasbeheizte Geräte für die sanitäre Warmwasserbereitung für den Hausgebrauch - Geräte, die eine Nennwärmebelastung von 70 kW und eine Speicherkapazität von 500 Liter Wasser nicht überschreiten - Teil 3: Bewertung des Energieverbrauchs

Diese Europäische Norm ist anwendbar für Solar unterstützte gasbeheizte Geräte für die sanitäre Warmwasserbereitung für den Hausgebrauch. Sie wird angewendet für ein System, das als eine einzelne Einheit gekennzeichnet ist oder für ein System, das von einem Hersteller umfassend beschrieben ist und: - eine Wärmebelastung hat, die 70 kW nicht überschreitet; und - eine Speicherkapazität für Warmwasser hat, die 500 L nicht übersteigt; und - das zumindest mit einem Sonnenkollektor ausgerüstet ist; und - das im Hinblick auf den solaren hydraulischen Kreislauf als ein erzwungenes Umlaufsystem betrachtet wird (Begriffsbestimmung nach EN ISO 9488:1999). Die Geräte, für die diese Europäische Norm gilt, werden im Anhang C beschrieben. Diese Norm ist nicht anwendbar für Thermo-Syphon-Speichersysteme oder integrierte Kollektor-Speicher-systeme (Begriffsbestimmungen nach EN ISO 9488:1999). ANMERKUNG Im Prinzip kann jedoch der Energieverbrauch von solar vorgeheizten Thermo-Syphon-Speicher-systemen und solar vorgeheizten integrierten Kollektor-Speichersystemen auf der Grundlage dieser Norm bewertet werden. Eine geeignete Verfahrensweise für diesen Zweck ist es, das Temperaturniveau des aus dem thermischen Solarsystem gezapften häuslichen Warmwassers für die in dieser Norm definierten Referenzbedingungen zu berechnen unter Verwendung des numerischen Modellsystems und der Gebrauchsparameter des thermischen Solarsystems entsprechend der ISO 9459-5. Auf der Grundlage des Temperaturniveaus des aus dem Speicher gezapften Warm-wassers soll der Energieverbrauch des Gasgerätes bestimmt werden. Diese Bestimmung kann entweder mit Hilfe von Berechnungen oder mit der Durchführung einer Prüfung entsprechend EN 13203-2 und bei Verwendung anstelle der Eintrittstemperatur des kalten Wassers die Temperatur des aus dem Speicher gezapften Warmwassers festgelegt werden.

Appareils domestiques produisant de l'eau chaude sanitaire utilisant les combustibles gazeux couplés à un capteur solaire - Appareils de débit calorifique inférieur ou égal à 70 kW et de capacité de stockage inférieure ou égale à 500 litres - Partie 3 : Évaluation de la consommation énergétique

La présente Norme européenne s’applique aux appareils de production d'eau chaude sanitaire utilisant des
combustibles gazeux et couplés à un appareil solaire. Elle s’applique à la fois aux systèmes commercialisés en
tant qu'unités complètes et aux systèmes entièrement spécifié par le fabricant :
- qui ont un débit calorifique de gaz inférieur ou égal à 70 kW ; et
- qui ont une capacité de stockage en eau inférieure ou égale à 500 litres ; et
- qui sont équipés d'au moins un capteur solaire ; et
- qui sont, au regard du circuit hydraulique solaire, considérés comme des systèmes à circulation forcée
(définition selon l'EN ISO 9488).
Les appareils couverts par la présente norme sont décrits en Annexe C.
La présente norme européenne ne s’applique pas aux installations à thermosiphon ou auto-stockeuses (définitions
selon l’EN ISO 9488 :1999).
NOTE En principe, elle peut servir à évaluer la consommation énergétique des installations de préchauffage solaire,
qu’elles soient à thermosiphon ou auto-stockeuses. Pour ce faire, il faut calculer le niveau de température de l’eau chaude
domestique puisée de l’installation solaire thermique dans les conditions de référence définies dans la présente norme à partir
du modèle numérique de l’installation et les paramètres de performance de l’installation solaire thermique suivant l’ISO 9459-5.
Selon le niveau de température de l’eau chaude puisée du ballon, il est possible de déterminer la consommation d’énergie de
l’appareil à gaz. Cette détermination doit se faire, soit par calcul, soit grâce à l’essai prévu dans l’EN 13203-2 en remplaçant la
température d’eau froide par la température de l’eau chaude puisée du ballon.
La présente norme européenne n'est pas destinée à évaluer la performance :
- des capteurs solaires qui doivent être conformes aux EN 12975-1 et EN 12975-2 ; et
- des installations solaires thermiques et leurs composants qui doivent être conformes aux EN 12976-1 et
EN 12976-2.

Solarno-plinske gospodinjske naprave za pripravo sanitarne tople vode - Naprave z močjo do vključno 70 kW in s 500-litrskim hranilnikom vode - 3. del: Vrednotenje porabe plina

Ta evropski standard velja za solarno-plinske naprave za pripravo  sanitarne tople vode v gospodinjstvih. Velja za sistem, ki se trži kot samostojna enota, ali sistem, za katerega je proizvajalec obširno določil, da: - ima moč do vključno 70 kW in – ima hranilnik tople vode do vključno 500 l ter – je opremljen vsaj z enim solarnim kolektorjem; in se z ozirom na solarni hidravlični tokokrog šteje kot sistem z vsiljenim kroženjem (definicija po EN ISO 9488:1999). Naprave, ki jih zajema ta evropski standard, so opisane v Dodatku C. Ta evropski standard, EN 13203-3, določa metodo za vrednotenje energetske učinkovitosti solarnih naprav.  Opredeljuje število dnevnih ciklov točenja za vsako uporabo vroče vode v gospodinjstvu, v kuhinji, pod tušem, v kadi ali kombinacijo le-teh, skupaj z ustreznimi preskusnimi postopki, vključno z informacijami o razpoložljivem sončnem sevanju.  Omogoča energetsko učinkovitost različnih grelnih naprav, da se jih lahko primerja ter da ustrezajo potrebam uporabnika.

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Status
Published
Publication Date
10-Aug-2010
Current Stage
9093 - Decision to confirm - Review Enquiry
Due Date
15-Oct-2015
Completion Date
05-Feb-2018

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2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Solar unterstützte gasbeheizte Geräte für die sanitäre Warmwasserbereitung für den Hausgebrauch - Geräte, die eine Nennwärmebelastung von 70 kW und eine Speicherkapazität von 500 Liter Wasser nicht überschreiten - Teil 3: Bewertung des EnergieverbrauchsAppareils domestiques produisant de l'eau chaude sanitaire utilisant les combustibles gazeux couplés a un capteur solaire - Appareils de débit calorifique inférieur ou égal a 70 kW et de capacité de stockage inférieure ou égale a 500 litres - Partie 3 : Évaluation de la consommation énergétiqueSolar supported gas-fired domestic appliances producing hot water - Appliances not exceeding 70 kW heat input and 500 liters water storage capacity - Part 3: Assessment of energy consumption91.140.65Oprema za ogrevanje vodeWater heating equipmentICS:Ta slovenski standard je istoveten z:EN 13203-3:2010SIST EN 13203-3:2010en,fr,de01-december-2010SIST EN 13203-3:2010SLOVENSKI

STANDARD
SIST EN 13203-3:2010
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 13203-3
August 2010 ICS 91.140.65 English Version

Solar supported gas-fired domestic appliances producing hot water - Appliances not exceeding 70 kW heat input and 500 litres water storage capacity - Part 3: Assessment of energy consumption

Appareils domestiques produisant de l'eau chaude sanitaire utilisant les combustibles gazeux couplés à un capteur solaire - Appareils de débit calorifique inférieur ou égal à 70 kW et de capacité de stockage inférieure ou égale à 500 litres - Partie 3 : Évaluation de la consommation énergétique

Solar unterstützte gasbeheizte Geräte für die sanitäre Warmwasserbereitung für den Hausgebrauch -Geräte, die eine Nennwärmebelastung von 70 kW und eine Speicherkapazität von 500 Liter Wasser nicht überschreiten - Teil 3: Bewertung des Energieverbrauchs This European Standard was approved by CEN on 9 July 2010.

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 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 Management Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.

EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre:
Avenue Marnix 17,

B-1000 Brussels © 2010 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 13203-3:2010: ESIST EN 13203-3:2010

EN 13203-3:2010 (E) 2 Contents Page Foreword ..............................................................................................................................................................31Scope ......................................................................................................................................................42Normative references ............................................................................................................................43Terms and definitions ...........................................................................................................................54General test conditions .........................................................................................................................74.1General ....................................................................................................................................................74.2Reference conditions ............................................................................................................................74.3Measurement uncertainties ..................................................................................................................74.4Test conditions ......................................................................................................................................84.4.1General ....................................................................................................................................................84.4.2Installation for test procedure ..............................................................................................................84.4.3Test room ................................................................................................................................................84.4.4Water supply ..........................................................................................................................................84.4.5Solar circuit ............................................................................................................................................94.4.6Initial adjustment of the appliance .......................................................................................................94.4.7Electrical supply ....................................................................................................................................94.4.8Solar thermal input ................................................................................................................................95Determination of the energy consumption of the solar supported gas-fired appliance ................95.1General ....................................................................................................................................................95.2Tapping cycles .......................................................................................................................................95.3Solar cycle ........................................................................................................................................... 145.3.1General ................................................................................................................................................. 145.3.2Test for determination of the daily energy consumption ............................................................... 15Annex A (informative)

Test rig and measurement devices .......................................................................... 21A.1General ................................................................................................................................................. 21A.2Pressure measurement ...................................................................................................................... 22A.3Temperature measurement ................................................................................................................ 22Annex B (informative)

Solar collector simulator ........................................................................................... 25B.1General ................................................................................................................................................. 25B.2Derivation of the equation used for the calculation of TC,out .......................................................... 26B.3Alternative solar collector simulator ................................................................................................ 27Annex C (normative)

Appliances covered by this European Standard ..................................................... 30Bibliography ..................................................................................................................................................... 32 SIST EN 13203-3:2010

EN 13203-3:2010 (E) 3 Foreword This document (EN 13203-3:2010) 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 February 2011, and conflicting national standards shall be withdrawn at the latest by February 2011. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom.

SIST EN 13203-3:2010

EN 13203-3:2010 (E) 4 1 Scope This European Standard is applicable to solar supported gas-fired appliances producing domestic hot water. It applies to a system marketed as single unit or a system fully specified by a manufacturer that:  has a gas heat input not exceeding 70 kW; and  has a hot water storage capacity not exceeding 500 l; and  is equipped with at least one solar collector; and  is, with regard to the solar hydraulic circuit, considered as a forced circulation system (definition according to EN ISO 9488:1999). The appliances covered by this European Standard are described in Annex C. This European Standard does not apply to thermo-siphon or integral collector storage systems (definitions according to EN ISO 9488:1999).

NOTE In principle, the energy consumption of thermo-siphon solar preheat systems and integral collector storage preheat systems can also be assessed on the basis of this standard. One appropriate procedure for that purpose is to calculate the temperature level of the domestic hot water withdrawn from the thermal solar system for the reference conditions defined in this standard by using the numerical system model and the thermal solar system performance parameters according to ISO 9459-5. Based on the temperature level of the hot water withdrawn from the store the energy consumption of the gas appliance should be determined. This determination can either be done by means of calculations or by performing a test according to EN 13203-2 and using instead of the cold water inlet temperature the hot water temperature withdrawn from the store. This standard is not intended to assess the performance:  of the solar collector(s), which should comply with EN 12975-1 and EN 12975-2; and

 thermal solar systems and components, which should comply with EN 12976-1 and EN 12976-2. This European Standard, EN 13203-3, sets out a method for assessing the energy performance of a solar supported appliance. 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 including information about the available solar radiation. It enables the energy performances of different gas-fired appliances to be compared and matched to the needs of the user. 2 Normative references The following referenced documents are indispensable for the application of this European Standard. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 12975-1, Thermal solar systems and components

Solar collectors
Part 1: General requirements EN 12975-2, Thermal solar systems and components
Solar collectors
Part 2: Test methods EN 12976-1, Thermal solar systems and components
Factory made systems

Part 1: General requirements EN 12976-2:2006, Thermal solar systems and components

Factory made systems
Part 2: Test methods SIST EN 13203-3:2010

EN 13203-3:2010 (E) 5 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 aperture area of solar collector maximum projected area through which solar radiation enters the collector

NOTE See definition and explanation according to EN ISO 9488:1999. 3.2 controls all hydraulic, thermal and electronic components necessary for the operation of the system 3.3 control cycle time cycle for keeping components and/or the storage 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 auxiliary energy) is operating, and an "OFF" duration time during which no heating occurs 3.4 domestic water mean temperature average temperature of the water delivered during the time ût

SYMBOL Tm

NOTE ∫⋅∆=tTtTd1m 3.5 domestic water test temperature temperature of the delivered water at which the tests are conducted 3.6 measurement period ongoing 24 h period during which the system is continuously operated NOTE Measurement period starts at 0h00. 3.7 nominal domestic hot water heat input value of the heat input stated by the manufacturer for the production of domestic hot water1)

SYMBOL Qnw NOTE Qnw

is expressed in kilowatts (kW). 3.8 off mode state of an appliance, selected by the user, in which hot sanitary water cannot be provided 3.9 solar collector field either one or a combination of more than one solar collectors

1) The manufacturer is the organisation or company that assumes responsibility for the product. SIST EN 13203-3:2010

EN 13203-3:2010 (E) 6 3.10 solar collector simulator device delivering the thermal power to the system (store) instead of a real solar collector based on the solar collector efficiency parameters according to EN 12975-2 NOTE The solar collector simulator is described in Annex B. 3.11 solar collector simulator circuit circuit containing the piping, the pump, the controls, the heat-exchanger and the collector solar simulator 3.12 solar cycle day of a year representative for middle European climate conditions NOTE The total daily radiation of that day is 3,0 kWh/m² and the mean value of the outdoor ambient temperature is 6,7 °C. 3.13 solar supported system system marketed as single unit or a system fully specified by a manufacturer, and composed of solar collector, water storage tank, controls, pipework and the gas appliance 3.14 stand by mode operating state in which the appliance can provide hot sanitary water at any time NOTE In the case of an appliance with a control cycle for keeping components and/or the storage (if any) of the domestic hot water circuit at predetermined temperature level no tapping is made. 3.15 storage reservoir for domestic hot water 3.16 summer mode conditions during which the appliance supplies energy only for the production of domestic hot water 3.17 useful water quantity of water delivered for which the temperature increase is in accordance with the requirement fixed for each individual delivery of the tapping cycles 3.18 wasted water quantity of water delivered for which the temperature increase is not in accordance with the requirement fixed for each individual delivery of the tapping cycles 3.19 winter mode conditions during which the appliance supplies energy for the production of domestic hot water and/or space heating SIST EN 13203-3:2010

EN 13203-3:2010 (E) 7 4 General test conditions 4.1 General In order to apply the test procedures specified in this standard, it is required:  that the collectors of the system fulfil the requirements of EN 12975-1 and are already tested according to EN 12975-2; and  that factory made thermal solar systems fulfil the requirements of EN 12976-1 are tested according to EN 12976-2. 4.2 Reference conditions Unless otherwise stated, the general test conditions are as follows:  cold water temperature: (10 ± 2) °C;  cold water pressure: (2 ± 0,1) bar;  ambient air temperature: (20 ± 3) °C;  electrical supply voltage: (230 ± 2) V. 4.3 Measurement uncertainties Except where otherwise stated in the clauses describing the tests, the uncertainties of measurements carried out shall be not greater than the maximum uncertainties indicated below. These uncertainties correspond to two standard deviations. The laboratory evaluates these standard deviations taking account of the various sources of uncertainty: contribution from the instrument, repeatability, calibration, ambient conditions, etc. a) Water rate:

± 1 %; b) gas rate:
± 1 %; c) time:
± 0,2 s; d) temperatures : 1) ambient:
± 1 °C; 2) water:
± 0,5 °C; 3) gas:
± 0,5 °C; e) mass:
± 0,5 %; f) gas pressure:
± 2 %; g) gas calorific value: ± 1 %; h) gas density:
± 0,5 %; SIST EN 13203-3:2010
EN 13203-3:2010 (E) 8 i) electrical 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 %. 4.4 Test conditions 4.4.1 General Except where otherwise stated, the appliance is tested under the following conditions. For combination gas appliances, the tests are carried out only in summer mode as defined in 3.16, and the appliance is set in summer mode. 4.4.2 Installation for test procedure The installation for testing, including thermal insulation of the components, shall be in accordance with the manufacturer specifications. The maximum length of the piping between the gas appliance and the storage tank(s) shall not exceed 3 m in total (inlet plus outlet). The minimum length of the piping between the solar collector simulator and the storage tank(s) shall be 6 m in total (inlet plus outlet) and shall not exceed 10 m.

If not specified by the manufacturer of the appliance, the piping shall be in accordance with EN 12976-2:2006, Annex B and Table B.2 (pipe diameter and insulation thickness). For drain back solar thermal systems only the mass flow rate according to the collector circuit specifications (m&) supplied by the manufacturer shall be used. 4.4.3 Test room The appliance is installed in a well-ventilated, draught-free room (air speed less than 0,5 m/s). The appliance is protected from direct solar radiation. 4.4.4 Water supply For the tests:  the domestic water pressure is the static inlet pressure under dynamic conditions measured as close as possible to the system;  the inlet and outlet temperatures of the domestic water are measured in the centre of the flow and as close as possible to the system. The inlet temperatures are measured immediately upstream of the water inlet connection. Except where otherwise stated, the outlet temperatures are measured immediately downstream of the outlet connection or, in the case of a system 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 by the manufacturer. The hot water temperature is measured with a rapid response thermometer. SIST EN 13203-3:2010

EN 13203-3:2010 (E) 9 "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. 4.4.5 Solar circuit For the tests, the fluid used in the solar collector simulator circuit is water at the pressure specified by the manufacturer. 4.4.6 Initial adjustment of the appliance The system is installed in accordance with the manufacturer's instructions. The heat input of the gas appliance shall be adjusted to within ± 2 % of the nominal domestic hot water heat input under the conditions prevailing at the time of the test with solar collector simulator off. The delivered water temperature at the system outlet is defined as follows: a) System with an adjustable temperature: the tests are 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) System with a fixed temperature: the tests are carried out at the temperature specified by the manufacturer, with a minimum temperature increase equal to or greater than 45 K above cold water inlet temperature. The same conditions of initial adjustment stated by the manufacturer are used for all the tests. These conditions are included in the test report.

4.4.7 Electrical supply The appliance is supplied with the nominal voltage or a voltage included within the range of nominal voltages. 4.4.8 Solar thermal input The solar thermal input is supplied to the solar heat exchanger of the solar tank as follows. Instead of installing the solar collector field, a solar collector simulator is connected to the hydraulic connections of the storage tank originally foreseen for the connection to the solar collector field as described in Annex D. The flow rate in the solar hydraulic circuit shall be according to the specifications of the appliance manufacturer. If not specified by the appliance manufacturer, a flow rate of 50 l/h for each square metre of aperture area of the solar collector field shall be used. 5 Determination of the energy consumption of the solar supported gas-fired appliance 5.1 General This clause defines the test methods to be employed in determining the energy consumption of the appliance. 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 kilowatt hours equivalent of hot water tapped) of each draw-off are defined.

Furthermore, the draw-off can be characterised in two ways, either: SIST EN 13203-3:2010

EN 13203-3:2010 (E) 10 a) "basin" type draw-off (bath, dish wash) versus "continuous flow" draw-offs (shower, hand wash, etc.).

The aim of the former 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 latter start to be useful only from a certain temperature (minimum useful temperature increase is

15 K lower than the desired temperature); or b) "kitchen" type draw-off which are carried out with a water temperature of 45 K rather than the 30 K increase in a). The tapping flow rates used to perform the different types of tapping of each of the five tapping cycles defined by Tables 2 to 6 should be taken as given by Table 1. When these tapping rates result in a tapping period of less than 15 s, the flow rate should be decreased such that the tapping period is (15 ± 1) s. If, by design of the appliance, the test cannot be carried out with these low flow rates, the minimum flow rate for the ignition of the appliance is taken. If, by design, the appliance is fitted with an excess flow valve, the tests are carried out with this excess flow rate. Table 1

Tapping flow rates Type of tapping Energy
kWh Hot water flow rates corresponding to a temperature rise of 45 K

l/min household cleaning 0,105 3 ± 0,5 small 0,105 3 ± 0,5 floor cleaning 0,105 3 ± 0,5 dish washing 0,315 4 ± 0,5 dish washing 0,420 4 ± 0,5 dish washing 0,735 4 ± 0,5 large (cycle n° 1) 0,525 4 ± 0,5 shower 1,400 6 ± 0,5 shower (cycles n° 4 et n° 5) 1,800 6 ± 0,5 bath 3,605 10 ± 0,5 bath (cycles n° 4 et n° 5) 4,420 10 ± 0,5 shower + bath (cycle n° 5) 6,240 16 ± 0,5

NOTE For all other temperature rises a proportional correction is applied to the hot water flow rate, as follows:

K = (55 – 10) / (delivered water temperature defined by 4.4.6 – 10). SIST EN 13203-3:2010

EN 13203-3:2010 (E) 11 Table 2
Tapping cycle n° 1
H min. start Energy

kWh Type of delivery∆∆∆∆T desired (K), to be achieved during tapping Min. ∆∆∆∆T (K) = start of counting useful energy 1 07.00 0,105 small

15 2 07.30 0,105 small
15 3 08.30 0,105 small
15 4 09.30 0,105 small
15 5 11.30 0,105 small
15 6 11.45 0,105 small
15 7 12.45 0,315 dish washing 45 0 8 18.00 0,105 small
15 9 18.15 0,105 household cleaning
30 10 20.30 0,420 dish washing 45 0 11 21.30 0,525 large
30 Total 2,1
Equivalent hot water litres at 60 °C 36
Table 3
Tapping cycle n° 2
H min. start Energy

kWh Type of delivery∆∆∆∆T desired (K), to be achieved during tapping Min. ∆∆∆∆T (K) = start of counting useful energy 1 07.00 0,105 small

15 2 07.15 1,400 shower
30 3 07.30 0,105 small
15 4 08.01 0,105 small
15 5 08.15 0,105 small
15 6 08.30 0,105 small
15 7 08.45 0,105 small
15 8 09.00 0,105 small
15 9 09.30 0,105 small
15 10 10.30 0,105 floor cleaning
30 0 11 11.30 0,105 small
15 12 11.45 0,105 small
15 13 12.45 0,315 dish washing 45 0 14 14.30 0,105 small
15 15 15.30 0,105 small
15 16 16.30 0,105 small
15 17 18.00 0,105 small
15 18 18.15 0,105 household cleaning
30 19 18.30 0,105 household cleaning
30 20 19.00 0,105 small
15 21 20.30 0,735 dish washing 45 0 22 21.15 0,105 small
15 23 21.30 1,400 shower
30 Total 5,845
Equivalent hot water litres at 60 °C 100,2 SIST EN 13203-3:2010
EN 13203-3:2010 (E) 12
Table 4
Tapping cycle n° 3
H min. start Energy

kWh Type of delivery∆∆∆∆T desired (K), to be achieved during tapping Min. ∆∆∆∆T (K) = start of counting useful energy 1 07.00 0,105 small

15 2 07.05 1,400 shower
30 3 07.30 0,105 small
15 4 07.45 0,105 small
15 5 08.05 3,605 bath 30 0 6 08.25 0,105 small
15 7 08.30 0,105 small
15 8 08.45 0,105 small
15 9 09.00 0,105 small
15 10 09.30 0,105 small
15 11 10.30 0,105 floor cleaning 30 0 12 11.30 0,105 small
15 13 11.45 0,105 small
15 14 12.45 0,315 dish washing 45 0 15 14.30 0,105 small
15 16 15.30 0,105 small
15 17 16.30 0,105 small
15 18 18.00 0,105 small
15 19 18.15 0,105 household cleaning
30 20 18.30 0,105 household cleaning
30 21 19.00 0,105 small
15 22 20.30 0,735 dish washing 45 0 23 21.00 3,605 bath 30
0 24 21.30 0,105 small
15 Total 11,655
Equivalent hot water litres at 60 °C 199,8
SIST EN 13203-3:2010
EN 13203-3:2010 (E) 13 Table 5
Tapping cycle n° 4
H min. start Energy

kWh Type of delivery∆∆∆∆T desired (K), to be achieved during tapping Min. ∆∆∆∆T (K) = start of counting useful energy 1 07.00 0,105 small

15 2 07.15 1,82 shower
30 3 07.26 0,105 small
15 4 07.45 4,42 bath 30 0 5 08.01 0,105 small
15 6 08.15 0,105 small
15 7 08.30 0,105 small
15 8 08.45 0,105 small
15 9 09.00 0,105 small
15 10 09.30 0,105 small
15 11 10.00 0,105 small
15 12 10.30 0,105 floor cleaning 30 0 13 11.00 0,105 small
15 14 11.30 0,105 small
15 15 11.45 0,105 small
15 16 12.45 0,735 dish washing 45 0 17 14.30 0,105 small
15 18 15.00 0,105 small
15 19 15.30 0,105 small
15 20 16.00 0,105 small
15 21 16.30 0,105 small
15 22 17.00 0,105 small
15 23 18.00 0,105 small
15 24 18.15 0,105 household cleaning
30 25 18.30 0,105 household cleaning
30 26 19.00 0,105 small
15 27 20.30 0,735 dish washing 45 0 28 20.46 4,42 bath 30 0 29 21.15 0,105 small
15 30 21.30 4,42 bath 30 0 Total 19,07
Equivalent hot water litres at 60 °C 325
SIST EN 13203-3:2010
EN 13203-3:2010 (E) 14 Table 6
Tapping cycle n° 5
H min. start Energy

kWh Type of delivery∆∆∆∆T desired (K), to be achieved during tapping Min. ∆∆∆∆T (K) = start of counting useful energy 1 07.00 0,105 small

15 2 07.15 1,82 shower
30 3 07.26 0,105 small
15 4 07.45 6,24 shower + bath 30 0 5 08.01 0,105 small
15 6 08.15 0,105 small
15 7 08.30 0,105 small
15 8 08.45 0,105 small
15 9 09.00 0,105 small
15 10 09.30 0,105 small
15 11 10.00 0,105 small
15 12 10.30 0,105 floor cleaning 30 0 13 11.00 0,105 small
15 14 11.30 0,105 small
15 15 11.45 0,105 small
15 16 12.45 0,735 dish washing 45 0 17 14.30 0,105 small
15 18 15.00 0,105 small
15 19 15.30 0,105 small
15 20 16.00 0,105 small
15 21 16.30 0,105 small
15 22 17.00 0,105 small
15 23 18.00 0,105 small
15 24 18.15 0,105 household cleaning
30 25 18.30 0,105 household cleaning
30 26 19.00 0,105 small

15 27 20.30 0,735 dish washing 45 0 28 20.46 6,24 shower + bath 30 0 29 21.15 0,105 small

15 30 21.30 6,24 shower + bath 30 0 Total 24,53
Equivalent hot water litres at 60 °C 420

5.3 Solar cycle 5.3.1 General The solar cycle given in Table 7 defines a 24 h cycle for the total solar radiation available at the surface of the aperture area of the solar collector field and the outdoor ambient temperature.

The data from Table 7 is required for the generation of the solar thermal input by the solar collector simulator. SIST EN 13203-3:2010

EN 13203-3:2010 (E) 15 Table 7
Solar cycle Hour Total radiation on collector aperture area
kWh/m2 Outdoor ambient temperature

°C 1 0 5 2 0 4,7 3 0 4,4 4 0 4,3 5 0 4,3 6 0 4,3 7 0 4,6 8 0,10 5,1 9 0,16 5,8 10 0,38 6,7 11 0,32 7,7 12 0,28 8,6 13 0,42 9,5 14 0,47 10,1 15 0,55 10,4 16 0,36 10,4 17 0 9,9 18 0 9,2 19 0 8,3 20 0 7,4 21 0 6,5 22 0 5,6 23 0 4,8 24 0 4,1

5.3.2 Test for determination of the daily energy consumption 5.3.2.1
Tapping cycles There are five different tapping cycles depending on the use.

For each use, the tapping cycle(s) is (are) based respectively on Tables 2, 3, 4, 5 and 6. Each individual tapping of the tapping cycles shall be completed, that means the valve shall be closed, and a delay of at least 1 min is required, before starting the following delivery. 5.3.2.2 Solar cycle The solar cycle described in 3.12 shall be used in combination with all tapping cycles. 5.3.2.3 Performing the test For appliances with and without energy consumption between deliveries (gas or electricity), the test is performed in the following way. The time used for the description of the tapping cycle is synchronous with the time used for the description of the solar cycle. During the operation of the system on

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