prEN 13203-1

SLOVENSKI STANDARD
01-februar-2024
Plinske gospodinjske naprave za pripravo tople sanitarne vode - 1. del:
Ocenjevanje zmogljivosti priprave tople vode
Gas fired domestic appliances producing hot water - Part 1: Assessment of performance
of hot water deliveries
Gasbeheizte Geräte für die sanitäre Warmwasserbereitung für den Hausgebrauch - Teil
1: Bewertung der Leistung der Warmwasserbereitung
Appareils domestiques produisant de l'eau chaude sanitaire utilisant les combustibles
gazeux - Partie 1 : Évaluation de la performance en puisage d'eau chaude
Ta slovenski standard je istoveten z: prEN 13203-1
ICS:
91.140.65 Oprema za ogrevanje vode Water heating equipment
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

DRAFT
EUROPEAN STANDARD
NORME EUROPÉENNE
EUROPÄISCHE NORM
February 2024
ICS 91.140.65 Will supersede EN 13203-1:2015
English Version
Gas fired domestic appliances producing hot water - Part
1: Assessment of performance of hot water deliveries
Appareils domestiques produisant de l'eau chaude Gasbeheizte Geräte für die sanitäre
sanitaire utilisant les combustibles gazeux - Partie 1 : Warmwasserbereitung für den Hausgebrauch - Teil 1:
Évaluation de la performance en puisage d'eau chaude Bewertung der Leistung der Warmwasserbereitung
This draft European Standard is submitted to CEN members for enquiry. 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 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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and
United Kingdom.
Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are
aware and to provide supporting documentation.

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

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2024 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 13203-1:2024 E
worldwide for CEN national Members.

Contents Page
European foreword . 3
1 Scope . 4
2 Normative references . 4
3 Terms and definitions . 4
4 General test conditions . 7
4.1 Reference conditions . 7
4.2 Measurement uncertainties . 7
4.3 Test conditions . 8
4.3.1 General . 8
4.3.2 Test room . 8
4.3.3 Water supply . 8
4.3.4 Steady state . 8
4.3.5 Initial adjustment of the appliance . 8
4.3.6 Initial state conditions . 9
4.3.7 Electrical supply . 9
5 Characterisation of the domestic hot water function of appliances . 9
5.1 General . 9
5.2 Characterisation according to the domestic hot water rates . 9
5.2.1 Specific rate . 9
5.2.2 Tapping capability . 10
5.2.3 Classification according to the quantity of available domestic hot water . 11
5.3 Classification according to the quality of the domestic hot water produced . 12
5.3.1 Classification procedure . 12
5.3.2 Test for classification according to the performance in delivery of domestic hot
water production . 13
6 Information . 16
7 Calculation of V40 . 16
7.1 Mixed water at 40 °C (V40) . 16
Annex A (informative)  Test conditions . 17
Annex B (informative)  Test rig and measurement devices . 30
B.1 General . 30
B.2 Pressure measurement . 31
B.3 Temperature measurement . 31
Annex ZA (informative) Relationship between this European Standard and the ecodesign
requirements of Commission Regulation (EU) n° 814/2013 [OJEU L239 of 6
September 2013] aimed to be covered . 34
Bibliography . 35

European foreword
This document (prEN 13203-1:2024) has been prepared by Technical Committee CEN/TC 109 “Central
heating boilers using gaseous fuels”, the secretariat of which is held by NEN.
This document will supersede EN 13203-1:2015.
The changes in this revision were oriented to align, when relevant, the requirements and tests between
instantaneous appliance and appliances with a storage tank. The main changes are the following:
— editorial improvement (definitions, tapping capacity, …);
— alignment of some Figures with the revised text;
— reference conditions (4.1) aligned to EN 13203-2:2022;
— tests for classification of the appliance on domestic water production (5.3.2 - classification, 5.3.2.7 –
temperature fluctuation).
This document has been prepared under a standardization request addressed to CEN by the European
Commission. The Standing Committee of the EFTA States subsequently approves these requests for its
Member States.
For the relationship with EU Legislation, see informative Annex ZA, which is an integral part of this
document.
NOTE Useful standards are EN 26, EN 15502-1, EN 15502-2-1 and EN 15502-2-2 (see the Bibliography).
1 Scope
This document is applicable to gas-fired appliances producing domestic hot water. It applies to both
instantaneous and storage appliances; water-heaters and combination boilers that have:
— heat input not exceeding 70 kW; and
— hot water storage capacity (if any) not exceeding 500 l.
In the case of combination boilers, with or without storage tank, domestic hot water production is
integrated or coupled, the whole being marketed as a single unit.
This document 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.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
EN 89:2015, Gas-fired storage water heaters for the production of domestic hot water
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminology databases for use in standardization at the following addresses:
— IEC Electropedia: available at https://www.electropedia.org/
— ISO Online browsing platform: available at https://www.iso.org/obp/
3.1
control cycle
time cycle for keeping components and/or the hot storage water 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 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 Δt
T T⋅dt
m
∫
∆t
Note 1 to entry: SYMBOL = Tm
3.3
domestic water test temperature
temperature of the delivered water at which the tests are conducted
3.4
storage tank
reservoir for domestic hot water
=
3.5
kitchen specific rate
domestic hot water flow rate corresponding to a mean temperature rise of 45 K that the appliance can
supply
Note 1 to entry: SYMBOL = D
c
Note 2 to entry: Dc is expressed in litre per minute (l/min).
3.6
minimum declared water rate
lowest water rate stated by the manufacturer maintaining a stable temperature
Note 1 to entry: SYMBOL = Dm
Note 2 to entry: Dm is expressed in litre per minute (l/min).
3.7
nominal domestic hot water heat input
value of the heat input stated by the manufacturer for the production of domestic hot water
Note 1 to entry: SYMBOL = Q
nw
Note 2 to entry: Qnw is expressed in kilowatt (kW).
3.8
overall performance factor
numerical value used to quantify the overall performance associated with domestic hot water use,
corresponding to the sum of the products of the particular performance factors multiplied by the
weighting coefficients
Note 1 to entry: SYMBOL = F
n
F = a .f
∑ ii
i=1
3.9
particular performance factor
numerical value which quantifies each of the performance criteria listed in Table 1
Note 1 to entry: SYMBOL = f
i
3.10
specific rate
domestic hot water rate declared by the manufacturer corresponding to a mean temperature rise of 30 K
that the appliance can supply in two successive delivery periods
Note 1 to entry: SYMBOL = D
Note 2 to entry: D is expressed in litre per minute (l/min).
3.11
summer mode
conditions during which the appliance supplies energy only for the production of domestic hot water
3.12
tapping capability
hot water delivery rate, declared by the manufacturer, at which water can be drawn off for a specified
time or times (5 min; 10 min; 20 min or continuous) with a predetermined temperature rise
Note 1 to entry: SYMBOL = R
Note 2 to entry: R is expressed in litre per minute (l/min).
3.13
temperature fluctuation at a constant water rate
difference between the minimum and maximum water temperatures that can occur during delivery at a
constant water rate with a constant inlet temperature
Note 1 to entry: SYMBOL = ΔT2
Note 2 to entry: ΔT2 is expressed in Kelvin (K)
3.14
temperature fluctuation between successiv
...