EN 13203-3:2010

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
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.
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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

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

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

± 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
± 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

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

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 =
...