EN 13203-2:2006

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

Test conditions.19 Annex B (informative)
Test rig and measurement devices.24 Bibliography.28

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
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.

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.

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.

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
...