SIST EN 13203-2:2006
Gas-fired domestic appliances producing hot water - Appliances not exceeding 70 kW heat input and 300 l water storage capacity - Part 2: Assessment of energy consumption
Gas-fired domestic appliances producing hot water - Appliances not exceeding 70 kW heat input and 300 l water storage capacity - Part 2: Assessment of energy consumption
This European Standard is applicable to gas-fired appliances producing domestic hot water. It applies to both instantaneous and storage appliances; waters-heaters and combination boilers that have:
- heat input not exceeding 70 kW, and
- hot water storage capacity (if any) not exceeding 300 l.
In the case of combination boilers, with or without storage, domestic hot water production is integrated or coupled, the whole being marketed as a single unit.
This European Standard EN 13203 is formed in two parts, which cover two aspects of domestic hot water production.
EN 13203-1 sets out in qualitative and quantitative terms the performance in delivery of domestic hot water for a selected variety of uses. It also gives a system for presenting the information to the user. This first part complements EN 26, EN 89 and EN 625.
The present European Standard EN 13203-2 sets out a method for assessing the energy performance of the 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.
Gasbeheizte Geräte für die sanitäre Warmwasserbereitung für den Hausgebrauch - Geräte, die eine Nennwärmeleistung von 70 kW und eine Speicherkapazität von 300 Liter Wasser nicht überschreiten - Teil 2: Bewertung des Energieverbrauchs
Diese Europäische Norm gilt für gasbeheizte Geräte für die häusliche sanitäre Warmwasserbereitung. Sie gilt sowohl für Durchlauf-Wasserheizer als auch für Vorratswasserheizer und Kombi-Kessel mit Speicher, welche
- eine Wärmebelastung von 70 kW nicht überschreiten und
- ein Warmwasser-Speichervolumen von (sofern vorhanden) 300 l nicht überschreiten.
Bei Kombi-Kesseln mit oder ohne Vorratsbehälter ist die häusliche Warmwasserbereitung im Kessel eingebaut oder am Kessel angebaut. Das gesamte Gerät wird als eine Gesamteinheit vertrieben.
Diese Europäische Norm besteht aus zwei Teilen, die zwei Arten der häuslichen Warmwasserbereitung behandeln:
Der erste Teil EN 13203-1 legt mehrere quantitative und qualitative Niveaus für den Komfort von sanitärem Warmwasser für eine Auswahl von Benutzungsarten fest. Er enthält ebenfalls Hinweise zur entsprechenden Information des Betreibers. Dieser erste Teil vervollständigt EN 26, EN 89 und EN 625.
Der zweite Teil EN 13203-2 legt eine Methode zur Bewertung des Energieverhaltens von Geräten fest. Er definiert eine Anzahl täglicher Zapfprogramme für die häusliche Warmwasserverwendung in der Küche, zum Duschen und Baden und für Kombinationen dieser Verwendungsarten. Weiterhin legt er die entsprechenden Prüfverfahren fest, mit denen das Energieverhalten unterschiedlicher Geräte verglichen und auf die Bedürfnisse des Betreibers ausgerichtet werden kann.
Appareils domestiques produisant de l'eau chaude sanitaire utilisant les combustibles gazeux - Appareils de débit calorifique inférieur ou égal a 70 kW et de capacité de stockage inférieure ou égale a 300 litres - Partie 2 : Évaluation de la consommation énergétique
La présente Norme européenne s’applique aux appareils de production d'eau chaude sanitaire utilisant les combustibles gazeux. Elle s’applique a la fois aux appareils instantanés ou a accumulation, chauffe-eau ou chaudieres a deux services, qui ont :
- un débit calorifique inférieur ou égal a 70 kW ; et
- une capacité de stockage en eau (si elle existe) inférieure ou égale a 300 l.
Dans le cas des chaudieres a deux services avec ou sans accumulation, la production d'eau chaude sanitaire est intégrée ou accolée, l'ensemble étant commercialisé comme une seule unité.
La norme EN 13203 est composée de deux parties qui couvrent deux aspects de la production de l'eau chaude sanitaire.
La norme EN 13203-1 définit en termes qualitatifs et quantitatifs la performance en puisage d'eau chaude sanitaire pour une variété d’usages sélectionnée. Cette partie complete l’EN 26, l’EN 89 et l'EN 625.
La présente norme EN 13203-2 définit une méthode pour déterminer les performances énergétiques des appareils. Elle définit cinq cycles de puisage journaliers pour l’usage d'eau chaude sanitaire, cuisine, douche, bain, et une combinaison de ces derniers, ainsi que les modalités d'essais correspondants, afin de pouvoir établir une comparaison des performances énergétiques des appareils utilisant les combustibles gazeux.
Plinske gospodinjske naprave za pripravo sanitarne tople vode – Naprave z močjo do vključno 70 kW in s 300 l hranilnikom vode – 2. del: Ocenjevanje porabe plina
General Information
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Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Gas-fired domestic appliances producing hot water - Appliances not exceeding 70 kW heat input and 300 l water storage capacity - Part 2: Assessment of energy consumptionAppareils domestiques produisant de l'eau chaude sanitaire utilisant les combustibles gazeux - Appareils de débit calorifique inférieur ou égal a 70 kW et de capacité de stockage inférieure ou égale a 300 litres - Partie 2 : Évaluation de la consommation énergétiqueGasbeheizte Geräte für die sanitäre Warmwasserbereitung für den Hausgebrauch - Geräte, die eine Nennwärmeleistung von 70 kW und eine Speicherkapazität von 300 Liter Wasser nicht überschreiten - Teil 2: Bewertung des EnergieverbrauchsTa slovenski standard je istoveten z:EN 13203-2:2006SIST EN 13203-2:2006en91.140.65ICS:SLOVENSKI
STANDARDSIST EN 13203-2:200601-september-2006
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 13203-2June 2006ICS 91.140.65 English VersionGas-fired domestic appliances producing hot water - Appliancesnot exceeding 70 kW heat input and 300 l water storagecapacity - Part 2: Assessment of energy consumptionAppareils domestiques produisant de l'eau chaude sanitaireutilisant les combustibles gazeux - Appareils de débitcalorifique inférieur ou égal à 70 kW et de capacité destockage inférieure ou égale à 300 l - Partie 2 : Évaluationde la consommation énergétiqueGasbeheizte Geräte für die sanitäre Warmwasserbereitungfür den Hausgebrauch - Geräte, die eineNennwärmeleistung von 70 kW und eine Speicherkapazitätvon 300 Liter Wasser nicht überschreiten - Teil 2:Bewertung des EnergieverbrauchsThis European Standard was approved by CEN on 25 May 2006.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the Central Secretariat or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, 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 STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2006 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 13203-2:2006: E
EN 13203-2:2006 (E) 2 Contents Page Foreword.3 1 Scope.4 2 Normative references.4 3 Terms and definitions.4 4 General test conditions.5 4.1 Reference conditions.5 4.2 Measurement uncertainties.6 4.3 Test conditions.6 4.3.1 General.6 4.3.2 Test room.6 4.3.3 Water supply.7 4.3.4 Steady state.7 4.3.5 Initial adjustment of the appliance.7 4.3.6 Electrical supply.7 5 Determination of the energy consumption of appliances.8 5.1 General.8 5.2 Tapping cycles.8 5.2.1 General.8 5.2.2 Test for determination of the daily energy consumption.14 Annex A (informative)
Test conditions.19 Annex B (informative)
Test rig and measurement devices.24 Bibliography.28
EN 13203-2:2006 (E) 3 Foreword This European Standard (EN 13203-2:2006) 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 December 2006, and conflicting national standards shall be withdrawn at the latest by December 2006. This European Standard has been prepared under a mandate M/324 given to CEN by the European Commission and the European Free Trade Association. This series “Gas-fired domestic appliances producing hot water — Appliances not exceeding 70 kW heat input and 300 l water storage capacity” consist of the following parts: Part 1: Assessment of performance of hot water deliveries; Part 2: Assessment of energy consumption. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, 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.
EN 13203-2:2006 (E) 4
1 Scope This European Standard is applicable to gas-fired appliances producing domestic hot water. It applies to both instantaneous and storage appliances; waters-heaters and combination boilers that have:
heat input not exceeding 70 kW, and
hot water storage capacity (if any) not exceeding 300 l. In the case of combination boilers, with or without storage, domestic hot water production is integrated or coupled, the whole being marketed as a single unit. This European Standard EN 13203 is formed in two parts, which cover two aspects of domestic hot water production. EN 13203-1 sets out in qualitative and quantitative terms the performance in delivery of domestic hot water for a selected variety of uses. It also gives a system for presenting the information to the user. This first part compliments EN 26, EN 89 and EN 625. The present European Standard EN 13203-2 sets out a method for assessing the energy performance of the 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. 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 13203-1:2005, Gas-fired domestic appliances producing hot water — Appliances not exceeding 70 kW heat input and 300 l water storage capacity — Part 1: Assessment of performance of hot water deliveries 3 Terms and definitions For the purposes of this European Standard, the following terms and definitions apply. 3.1 control cycle time cycle for keeping components and/or the tank (if any) of the domestic hot water circuit at predetermined temperature level, consists 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 3.2 domestic water mean temperature average temperature of the water delivered during the time ∆t
∫⋅∆=tTtTd1m SYMBOL Tm
EN 13203-2:2006 (E) 5 3.3 domestic water test temperature temperature of the delivered water at which the tests are conducted 3.4 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 kilowatt (kW) 3.5 off mode state of an appliance, selected by the user, in which domestic hot
water can not be provided 3.6 stand-by mode operating state in which the appliance can provide domestic hot water at any time. In the case of an appliance with a control cycle for keeping components and/or the tank (if any) of the domestic hot water circuit at predetermined temperature, level no tapping is made 3.7 summer mode conditions during which the appliance supplies energy only for the production of domestic hot water 3.8 tank reservoir for domestic hot water 3.9 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 3.10 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 3.11 winter mode conditions during which the appliance supplies energy for the production of domestic hot water and/or space heating 4 General test conditions 4.1 Reference conditions Unless otherwise stated, the general test conditions are as follows: cold water temperature: (10 ± 2), in °C; cold water pressure: (2 ± 0,1), in bar;
1 The manufacturer is the organisation or company which assumes responsibility for the product.
EN 13203-2:2006 (E) 6 ambient air temperature: (20 ± 3), in °C; electrical supply voltage: (230 ± 2), in V. 4.2 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.: water rate: ±
1 %; gas rate:
±
1 %; time:
±
0,2 s; temperatures: ambient: ±
1 °C; water: ±
0,5 °C; gas:
±
0,5 °C; mass:
±
0,5 %; gas pressure: ± 2 %; gas calorific value: ± 1 %; gas density: ±
0,5 %; 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 %. 4.3 Test conditions 4.3.1 General Except where otherwise stated, the appliance is tested under the following conditions. For combination boilers the tests are carried out only in summer mode. 4.3.2 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.
EN 13203-2:2006 (E) 7 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 are measured in the centre of the flow and as close as possible to the appliance. 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 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 by the manufacturer. The hot water temperature is 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 rate of change of the domestic hot water temperature at the appliance outlet has become less than the temperature fluctuation at constant water rate
T2 according to 3.8 of EN 13203-1:2005. 4.3.5 Initial adjustment of the appliance The appliance is installed in accordance with the manufacturer's instructions. The heat input shall be adjusted to within ±
2 % of the nominal domestic hot water heat input under the conditions prevailing at the time of the test. The delivered water temperature at the appliance outlet is defined as follows (see Figures A.1.1 and A.1.2): a) appliances 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 water inlet temperature; b) appliances 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. The same conditions of initial adjustment stated by the manufacturer are used for all the tests. These conditions are included in the test report. 4.3.6 Electrical supply The appliance is supplied with the nominal voltage or a voltage included within the range of nominal voltages.
EN 13203-2:2006 (E) 8 5 Determination of the energy consumption of appliances 5.1 General The present clause defines the test methods to be employed in determining the energy consumption of appliances. 5.2 Tapping cycles 5.2.1 General 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: a) “Basin” type draw-off (bath, dishwash) versus “continuous flow” draw-offs (shower, handwash 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 is carried out with a water temperature increase of 45 K rather than t
...
SLOVENSKI oSIST prEN 13050:2006
PREDSTANDARD
marec 2006
Obešene fasade – Neprepustnost za vodo – Laboratorijski preskus pri
dinamičnem tlaku
Curtain walling – Watertightness – Laboratory test under dynamic condition of air
pressure and water spray
ICS 91.060.10 Referenčna številka
oSIST prEN 13050:2006(en)
© Standard je založil in izdal Slovenski inštitut za standardizacijo. Razmnoževanje ali kopiranje celote ali delov tega dokumenta ni dovoljeno
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EUROPEAN STANDARD
FINAL DRAFT
prEN 13203-2
NORME EUROPÉENNE
EUROPÄISCHE NORM
November 2005
ICS 91.140.65
English Version
Gas-fired domestic appliances producing hot water - Appliances
not exceeding 70 kW heat input and 300 l water storage
capacity - Part 2: Assessment of energy consumption
Appareils domestiques produisant de l'eau chaude sanitaire Gasbeheizte Geräte für die sanitäre Warmwasserbereitung
utilisant les combustibles gazeux - Appareils de débit für den Hausgebrauch - Geräte, die eine
calorifique inférieur ou égal à 70 kW et de capacité de Nennwärmeleistung von 70 kW und eine Speicherkapazität
stockage inférieure ou égale à 300 l - Partie 2 : Évaluation von 300 Liter Wasser nicht überschreiten - Teil 2:
de la consommation énergétique Bewertung des Energieverbrauchs
This draft European Standard is submitted to CEN members for formal vote. It has been drawn up by the Technical Committee CEN/TC
109.
If this draft becomes a European Standard, CEN members are bound to comply with the CEN/CENELEC Internal Regulations which
stipulate the conditions for giving this European Standard the status of a national standard without any alteration.
This draft European Standard was established by CEN in three official versions (English, French, German). A version in any other language
made by translation under the responsibility of a CEN member into its own language and notified to the Management Centre has the same
status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,
Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia,
Slovenia, Spain, Sweden, Switzerland and United Kingdom.
Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without notice and
shall not be referred to as a European Standard.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36 B-1050 Brussels
© 2005 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 13203-2:2005: E
worldwide for CEN national Members.
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prEN 13203-2:2005 (E)
Contents Page
Foreword.3
1 Scope .4
2 Normative references .4
3 Terms and definitions .4
4 General test conditions.5
4.1 Reference conditions .5
4.2 Measurement uncertainties .6
4.3 Test conditions .6
4.3.1 General.6
4.3.2 Test room.6
4.3.3 Water supply .7
4.3.4 Steady state.7
4.3.5 Initial adjustment of the appliance.7
4.3.6 Electrical supply .7
5 Determination of the energy consumption of appliances .8
5.1 General.8
5.2 Tapping cycles.8
5.2.1 General.8
5.2.2 Test for determination of the daily energy consumption .14
Annex A (informative) Test conditions.19
Annex B (informative) Test rig and measurement devices.22
Bibliography .26
2
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prEN 13203-2:2005 (E)
Foreword
This European Standard (prEN 13203-2:2005) has been prepared by Technical Committee CEN/TC 109 “Central
heating boilers using gaseous fuels”, the secretariat of which is held by NNI.
This European Standard is currently submitted to the Formal Vote.
This European Standard has been prepared under a mandate M/324 given to CEN by the European Commission
and the European Free Trade Association.
This series “Gas-fired domestic appliances producing hot water — Appliances not exceeding 70 kW heat input and
300 l water storage capacity” consist of the following parts:
Part 1: Assessment of performance of hot water deliveries;
Part 2: Assessment of energy consumption.
3
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prEN 13203-2:2005 (E)
1 Scope
This European Standard is applicable to gas-fired appliances producing domestic hot water. It applies to both
instantaneous and storage appliances; waters-heaters and combination boilers that have:
a heat input not exceeding 70 kW, and
a hot water storage capacity (if any) not exceeding 300 l.
In the case of combination boilers, with or without storage, domestic hot water production is integrated or coupled,
the whole being marketed as a single unit.
This European Standard EN 13203 is formed in two parts, which cover two aspects of domestic hot water
production.
prEN 13203-1 sets out in qualitative and quantitative terms the performance in delivery of domestic hot water for a
selected variety of uses. It also gives a system for presenting the information to the user. This first part
complements EN 26, EN 89 and EN 625.
The present European Standard prEN 13203-2 sets out a method for assessing the energy performance of the
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.
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.
prEN 13203-1:2005, Gas-fired domestic appliances producing hot water — Appliances not exceeding 70 kW heat
input and 300 l water storage capacity — Part 1: Assessment of performance of hot water deliveries
3 Terms and definitions
For the purposes of this European Standard, the following terms and definitions apply.
3.1
control cycle
time cycle for keeping components and/or the tank (if any) of the domestic hot water circuit at predetermined
temperature level, consists 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
3.2
domestic water mean temperature
average temperature of the water delivered during the time ∆t
1
T = T ⋅ dt
m
∫
∆t
SYMBOL T
m
4
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prEN 13203-2:2005 (E)
3.3
domestic water test temperature
temperature of the delivered water at which the tests are conducted
3.4
nominal domestic hot water heat input
1
value of the heat input stated by the manufacturer for the production of domestic hot water .
SYMBOL Q
nw
NOTE Q is expressed in kilowatt (kW)
nw
3.5
off mode
state of an appliance, selected by the user, in which hot sanitary water can not be provided
3.6
stand-by mode
operating state in which the appliance can provide hot sanitary water at any time. In the case of an appliance with a
control cycle for keeping components and/or the tank (if any) of the domestic hot water circuit at predetermined
temperature level no tapping is made
3.7
summer mode
conditions during which the appliance supplies energy only for the production of domestic hot water
3.8
tank
reservoir for domestic hot water
3.9
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
3.10
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
3.11
winter mode
conditions during which the appliance supplies energy for the production of domestic hot water and/or space
heating
4 General test conditions
4.1 Reference conditions
Unless otherwise stated, the general test conditions are as follows:
cold water temperature: (10 ± 2), in °C;
cold water pressure: (2 ± 0,1), in bar;
1
The manufacturer is the organisation or company which assumes responsibility for the product.
5
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prEN 13203-2:2005 (E)
ambient air temperature: (20 ± 3), in °C;
electrical supply voltage: (230 ± 2), in V.
4.2 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.:
water rate: ± 1 %;
gas rate: ± 1 %;
time: ± 0,2 s;
temperatures:
ambient: ± 1 °C;
water: ± 0,5 °C;
gas: ± 0,5 °C;
mass: ± 0,5 %;
gas pressure: ± 2 %;
gas calorific value: ± 1 %;
gas density: ± 0,5 %;
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 %.
4.3 Test conditions
4.3.1 General
Except where otherwise stated, the appliance is tested under the following conditions.
For combination boilers the tests are carried out only in summer mode.
4.3.2 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.
6
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prEN 13203-2:2005 (E)
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 are measured in the centre of the flow and as close as
possible to the appliance.
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 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 by the manufacturer.
The hot water temperature is 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 rate of change of the domestic hot
water temperature at the appliance outlet has become less than the temperature fluctuation at constant water rate
T according to 3.8 of prEN 13203-1:2005.
2
4.3.5 Initial adjustment of the appliance
The appliance is installed in accordance with the manufacturer's instructions.
The heat input shall be adjusted to within ± 2 % of the nominal domestic hot water heat input under the conditions
prevailing at the time of the test.
The delivered water temperature at the appliance outlet is defined as follows (see Figures A.1.1 and A.1.2):
a) appliances 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 water inlet temperature;
b) appliances 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.
The same conditions of initial adjustment stated by the manufacturer are used for all the tests. These conditions are
included in the test report.
4.3.6 Electrical supply
The appliance is supplied with the nominal voltage or a voltage included within the range of nominal voltages.
7
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prEN 13203-2:2005 (E)
5 Determination of the energy consumption of appliances
5.1 General
The present clause defines the test methods to be employed in determining the energy consumption of appliances.
5.2 Tapping cycles
5.2.1 General
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:
a) “Basin” type draw-off (bath, dishwash) versus “continuous flow” draw-offs (shower, handwash 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 increase of 45 K rather than the
30 K 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.
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prEN 13203-2:2005 (E)
Table 1 – Tapping flow rates
Hot water flow rates
Energy corresponding to a
Type of tapping
temperature rise of
...
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