Gas appliances - Combined heat and power appliance of nominal heat input inferior or equal to 70 kW

2019-01-10 AJC: Document uploaded to HAS platform for FV stage following failed original upload. New HAS deadline: 2019-02-14. Following reception of results, document will progress.
2017-07-17 CP: negative assessment recived - UAP cancelled
2021: CLC legacy converted by DCLab NISOSTS

Gasgeräte - Geräte zur Kraft-Wärme-Kopplung mit einer Nennwärmebelastung kleiner oder gleich 70 kW

Appareils à gaz - Appareils produisant de la chaleur et de l’électricité combinées dont le débit calorifique nominal est inférieur ou égal à 70 kW

Plinske naprave - Kombinirane ogrevalne in pogonske naprave z imensko močjo do vključno 70 kW - Dopolnilo A1

General Information

Status
Published
Publication Date
21-Nov-2019
Current Stage
6060 - Document made available
Due Date
22-Nov-2019
Completion Date
22-Nov-2019

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SLOVENSKI STANDARD
SIST EN 50465:2015/A1:2020
01-januar-2020
Plinske naprave - Kombinirane ogrevalne in pogonske naprave z imensko močjo
do vključno 70 kW - Dopolnilo A1

Gas appliances - Combined heat and power appliance of nominal heat input inferior or

equal to 70 kW
Gasgeräte - Geräte zur Kraft-Wärme-Kopplung mit einer Nennwärmebelastung kleiner
oder gleich 70 kW

Appareils à gaz - Appareils produisant de la chaleur et de l’électricité combinées dont le

débit calorifique nominal est inférieur ou égal à 70 kW
Ta slovenski standard je istoveten z: EN 50465:2015/A1:2019
ICS:
27.070 Gorilne celice Fuel cells
97.100.99 Grelniki, ki uporabljajo druge Heaters using other sources
vire energije of energy
SIST EN 50465:2015/A1:2020 en

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
SIST EN 50465:2015/A1:2020
---------------------- Page: 2 ----------------------
SIST EN 50465:2015/A1:2020
EUROPEAN STANDARD EN 50465:2015/A1
NORME EUROPÉENNE
EUROPÄISCHE NORM
November 2019
ICS 27.070; 97.100.20
English Version
Gas appliances - Combined heat and power appliance of
nominal heat input inferior or equal to 70 kW

Appareils à gaz - Appareils produisant de la chaleur et de Gasgeräte - Geräte zur Kraft-Wärme-Kopplung mit einer

l'électricité combinées dont le débit calorifique nominal est Nennwärmebelastung kleiner oder gleich 70 kW

inférieur ou égal à 70 kW

This amendment A1 modifies the European Standard EN 50465:2015; it was approved by CENELEC on 11 February 2019. CEN and

CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this

amendment 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-CENELEC

Management Centre or to any CEN and CENELEC member.

This amendment exists in three official versions (English, French, German). A version in any other language made by translation under the

responsibility of a CEN and CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the

same status as the official versions.

CEN and CENELEC members are the national standards bodies and national electrotechnical committees 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, Turkey and United Kingdom
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels

© 2019 All rights of exploitation in any form and by any means reserved worldwide for CEN national Members and for

CEN/CENELEC CENELEC Members.
Ref. No. EN 50465:2015/A1:2019 E
---------------------- Page: 3 ----------------------
SIST EN 50465:2015/A1:2020
EN 50465:2015/A1:2019 (E)
Contents Page

European foreword ............................................................................................................................................ 4

1 Modification to the Scope .................................................................................................................... 5

2 Modification to clause 2, "Normative references" ............................................................................. 5

3 Modification to Clause 3, "Terms and definitions" ............................................................................ 9

4 Modification to subclause 5.1, General construction........................................................................ 9

5 Modification to subclause 5.3.2 "Connection to the gas pipe" ...................................................... 10

6 Modification to subclause 5.10 "Operational safety in the event of failure of the energy supply for

the control systems" ........................................................................................................................... 10

7 Modification to subclause 5.12 "Conversion to different gases" .................................................. 10

8 Modification to subclause 5.13.2.4 "Welded seams and welding fillers" ...................................... 10

9 Modification to subclause 5.18 "Design" ......................................................................................... 10

10 Modification to subclause 5.20 "Electrical equipment" .................................................................. 10

11 Modification to subclause 5.21.1 "General" ..................................................................................... 10

12 Modification to subclause 5.21.6 "Remote control" ........................................................................ 10

13 Modification to subclause 6.5.5.3.2 "Safety of operation" .............................................................. 11

14 Modification to subclause 6.6.1 "Efficiency (Hi)" ............................................................................ 11

15 Modification to subclause 6.6.7 "Annual energy consumption for space heating" ..................... 11

16 Modification to subclause 6.8.3 "Supplementary test for condensing mCHP appliance" .......... 11

17 Modification to subclause 6.11 "Formation of condensate" .......................................................... 11

18 Modification to Clause 6 "Operational Requirements" ................................................................... 11

19 Modification to clause 7, "Test Methods" ......................................................................................... 11

20 Modification to subclause 7.8.3 "Supplementary test for condensing mCHP appliance" .......... 12

21 Modification to subclause 7.14.2.1 "Characterization" ................................................................... 12

22 Modification to subclause 7.15.1 "Characterization" ...................................................................... 12

23 Modification to subclause 7.15.2 "Long-term resistance to thermal load" ................................... 13

24 Modification to subclause 7.15.3 "Long-term resistance to condensate exposure" ................... 13

25 Modification to subclause 7.15.6 "Compression set" ..................................................................... 13

26 Modification to subclause 7.15.7 "Low temperature resistance" .................................................. 13

27 Modification to Clause 7, "Test Methods" ........................................................................................ 13

28 Modification to subclause 9, "Marking, installation and operating instructions" ........................ 13

29 Modification to subclause 9.2.1.1, "Introduction" ........................................................................... 13

30 Modification to subclause 9.2.1.2, "General" ................................................................................... 13

31 Modification to Subclause 9.2.1, "Technical instructions" ............................................................. 14

32 Modification to Annex CC, "Test methods to determine the effects of long-term thermal load, long-

term condensate exposure, condensing/ non- condensing cycling and resistance to UV radiation"

............................................................................................................................................................... 14

---------------------- Page: 4 ----------------------
SIST EN 50465:2015/A1:2020
EN 50465:2015/A1:2019 (E)

33 Modification to Annex DD, "Variations in gas quality" ................................................................... 14

34 Addition of Annexes ........................................................................................................................... 14

Annex J (informative) Market surveillance (ErP) ......................................................................................... 15

J.1 General ................................................................................................................................................ 15

J.2 Minimum Criteria to be met by laboratories carrying out the verification measurements ......... 15

J.3 Minimization of the influence of the measurement procedure ...................................................... 15

J.4 Verification of the declared parameters ........................................................................................... 16

Annex K (informative) Specific Energy Consumption ................................................................................ 17

K.1 Introduction ......................................................................................................................................... 17

K.2 Definitions ........................................................................................................................................... 18

K.3 Operational requirements .................................................................................................................. 18

K.4 Test methods ...................................................................................................................................... 19

35 Modification to Annexes ZZ ............................................................................................................... 21

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SIST EN 50465:2015/A1:2020
EN 50465:2015/A1:2019 (E)
European foreword

This document (EN 50465:2015/A1:2019) has been prepared by CEN/CLC/JTC 17 “Fuel cell gas appliances”.

The following dates are fixed:
• latest date by which this document has to be (dop) 2020-05-22
implemented at national level by publication of
an identical national standard or by
endorsement
• latest date by which the national standards (dow) 2022-11-22
conflicting with this document have to be
withdrawn

It should be noted that the following changes have been incorporated in this Amendment:

a) Adoptions to follow the guidelines for developing harmonized standards (“Vademecum on European

standardisation in support of Union legislation and policies (commission staff working document

SWD(2015) 205 final)” have been implemented, e.g. normative references have been updated to dated

references all over the standard by revising Clause 2 with dated references, which apply to all normative

references throughout the standard text.

b) Requirements for risk assessment according to the (EU) 2016/426 (GAR) have been introduced to 5.1.

c) Requirements for the calculation of the “Annual energy consumption” have been introduced.

d) Additional requirements for sound power level and additional items for marking, installation and operating

instructions have been introduced, which are addressed by the 2009/125/EC (ErP).

e) Additional information for the market surveillance have been introduced (Annex J), which are addressed

by the ErP.

f) An informative Annex K has been introduced, which is giving information for definition and test methods

for the “Specific Energy Consumption”, it is recommended to be used as a basis for future review of the

Energy Labelling Regulation.

g) Annex ZZA concerning (EU) 2016/426 (GAR) and Annexes ZZB and ZZC concerning regulations

811/2013 and 813/2013 under Directive 2010/30/EU have been introduced.

Attention is drawn to the possibility that some of the elements of this document may be the subject of patent

rights. CENELEC shall not be held responsible for identifying any or all such patent rights.

For the relationship with EU Directive(s) see informative Annexes ZZA, ZZB and ZZC, which are an integral

part of this document.
---------------------- Page: 6 ----------------------
SIST EN 50465:2015/A1:2020
EN 50465:2015/A1:2019 (E)
1 Modification to the Scope
Replace the first paragraph of the Scope with the following:

This document specifies the requirements and test methods for the construction, safety, fitness for purpose,

rational use of energy, sound power measurement and together with requirements for the marking and advice

on the end of life disposal of a micro combined heat and power appliance; hereafter referred to as “mCHP

appliance”.
2 Modification to clause 2, "Normative references"
Replace Clause 2 by the following:

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.

NOTE This standard uses only dated references as for undated references in the main body of the standard, the

version referred to in this clause applies.

EN 88-1:2011+A1:2016, Pressure regulators and associated safety devices for gas appliances - Part 1:

Pressure regulators for inlet pressures up to and including 50 kPa

EN 125:2010+A1:2015, Flame supervision devices for gas burning appliances - Thermoelectric flame

supervision devices
EN 126:2012, Multifunctional controls for gas burning appliances

EN 161:2011+A3:2013, Automatic shut-off valves for gas burners and gas appliances

EN 298:2012, Automatic burner control systems for burners and appliances burning gaseous or liquid fuels

EN 437:2003+A1:2009, Test gases - Test pressures - Appliance categories

EN 513:1999, Unplasticized polyvinylchloride (PVC-U) profiles for the fabrication of windows and doors -

Determination of the resistance to artificial weathering

EN 549:1994, Rubber materials for seals and diaphragms for gas appliances and gas equipment

EN 573-1:2004, Aluminium and aluminium alloys - Chemical composition and form of wrought products - Part

1: Numerical designation system

EN 1057:2006+A1:2010, Copper and copper alloys - Seamless, round copper tubes for water and gas in

sanitary and heating applications

EN 1092-1:2007+A1:2013, Flanges and their joints — Circular flanges for pipes, valves, fittings and

accessories, PN designated — Part 1: Steel flanges

EN 1092-2:1997, Flanges and their joints - Circular flanges for pipes, valves, fittings and accessories, PN

designated - Part 2: Cast iron flanges

EN 1092-3:2003, Flanges and their joints - Circular flanges for pipes, valves, fittings and accessories, PN

designated - Part 3: Copper alloy flanges

EN 1092-3:2003/AC:2007, Flanges and their joints - Circular flanges for pipes, valves, fittings and

accessories, PN designated - Part 3: Copper alloy flanges

EN 1092-4:2002, Flanges and their joints - Circular flanges for pipes, valves, fittings and accessories, PN

designated - Part 4: Aluminium alloy flanges
---------------------- Page: 7 ----------------------
SIST EN 50465:2015/A1:2020
EN 50465:2015/A1:2019 (E)

CR 1404:1994, Determination of emissions from appliances burning gaseous fuels during type-testing

EN 1561:2011, Founding - Grey cast irons

EN 1856-1:2009, Chimneys - Requirements for metal chimneys - Part 1: System chimney products

EN 1856-2:2009, Chimneys - Requirements for metal chimneys - Part 2: Metal flue liners and connecting flue

pipes

EN 10029:2010, Hot-rolled steel plates 3 mm thick or above - Tolerances on dimensions and shape

EN 10088-1:2014, Stainless steels - Part 1: List of stainless steels

EN 10226-1:2004, Pipe threads where pressure tight joints are made on the threads - Part 1: Taper external

threads and parallel internal threads - Dimensions, tolerances and designation

EN 10226-2:2005, Pipe threads where pressure tight joints are made on the threads - Part 2: Taper external

threads and taper internal threads - Dimensions, tolerances and designation

EN 12067-2:2004, Gas/air ratio controls for gas burners and gas burning appliances - Part 2: Electronic types

EN 13203-1:2015, Gas fired domestic appliances producing hot water - Part 1: Assessment of performance of

hot water deliveries

EN 13216-1:2004, Chimneys - Test methods for system chimneys - Part 1: General test methods

EN 13501-1:2007+A1:2009, Fire classification of construction products and building elements - Part 1:

Classification using data from reaction to fire tests

EN 13611:2015, Safety and control devices for burners and appliances burning gaseous and/or liquid fuels -

General requirements

EN 13611:2015/AC:2016, Safety and control devices for burners and appliances burning gaseous and/or

liquid fuels - General requirements

EN 14459:2015, Safety and control devices for burners and appliances burning gaseous or liquid fuels -

Control functions in electronic systems - Methods for classification and assessment

EN 14471:2013+A1:2015, Chimneys - System chimneys with plastic flue liners - Requirements and test

methods

EN 15036-1:2006, Heating boilers - Test regulations for airborne noise emissions from heat generators - Part

1: Airborne noise emissions from heat generators

EN 50438:2013, Requirements for micro-generating plants to be connected in parallel with public low-voltage

distribution networks

EN 50549-1:2018, Requirements for generating plants to be connected in parallel with distribution networks –

Part 1: Connection to a LV distribution network – Generating plants up to and including Type B

EN 50549-2:2018, Requirements for generating plants to be connected in parallel with distribution networks –

Part 2: Connection to a MV distribution network - Generating plants up to and including Type B

EN 55014-1:2006, Electromagnetic compatibility - Requirements for household appliances, electric tools and

similar apparatus - Part 1: Emission

EN 55014-1:2006/A1:2009, Electromagnetic compatibility - Requirements for household appliances, electric

tools and similar apparatus - Part 1: Emission
---------------------- Page: 8 ----------------------
SIST EN 50465:2015/A1:2020
EN 50465:2015/A1:2019 (E)

EN 55014-1:2006/A2:2011, Electromagnetic compatibility - Requirements for household appliances, electric

tools and similar apparatus - Part 1: Emission

EN 55014-2:2015, Electromagnetic compatibility - Requirements for household appliances, electric tools and

similar apparatus - Part 2: Immunity - Product family standard

EN 60335-1:2012, Household and similar electrical appliances - Safety - Part 1: General requirements

EN 60335-2-102:2016, Household and similar electrical appliances - Safety - Part 2-102: Particular

requirements for gas, oil and solid-fuel burning appliances having electrical connections

EN 60529:1991, Degrees of protection provided by enclosures (IP Code)

EN 60529:1991/A1:2009, Degrees of protection provided by enclosures (IP Code) (IEC 60529:1989/A1:1999)

EN 60529:1991/A2:2013, Degrees of protection provided by enclosures (IP Code)

EN 60730-2-9:2010, Automatic electrical controls for household and similar use - Part 2-9: Particular

requirements for temperature sensing controls

EN 61000-3-2:2014, Electromagnetic compatibility (EMC) - Part 3-2: Limits - Limits for harmonic current

emissions (equipment input current ≤ 16 A per phase)

EN 61000-3-3:2013, Electromagnetic compatibility (EMC) - Part 3-3: Limits - Limitation of voltage changes,

voltage fluctuations and flicker in public low-voltage supply systems, for equipment with rated current <= 16 A

per phase and not subject to conditional connection

EN 61000-3-11:2000, Electromagnetic compatibility (EMC) - Part 3-11: Limits - Limitation of voltage changes,

voltage fluctuations and flicker in public low-voltage supply systems - Equipment with rated current <= 75 A

and subject to conditional connection

EN 61000-3-12:2011, Electromagnetic compatibility (EMC) - Part 3-12: Limits - Limits for harmonic currents

produced by equipment connected to public low-voltage systems with input current > 16 A and <= 75 A per

phase

EN 61000-6-1:2007, Electromagnetic compatibility (EMC) - Part 6-1: Generic standards - Immunity for

residential, commercial and light-industrial environments

EN 61000-6-3:2007, Electromagnetic compatibility (EMC) - Part 6-3: Generic standards - Emission standard

for residential, commercial and light-industrial environments

EN 61000-6-3:2007/A1:2011, Electromagnetic compatibility (EMC) - Part 6-3: Generic standards - Emission

standard for residential, commercial and light-industrial environments

EN 62282-3-100:2012, Fuel cell technologies - Part 3-100: Stationary fuel cell power systems - Safety

EN ISO 178:2010, Plastics - Determination of flexural properties (ISO 178:2010)

EN ISO 178:2010/A1:2013, Plastics - Determination of flexural properties (ISO 178:2010/Amd 1:2013)

EN ISO 179-1:2010, Plastics - Determination of Charpy impact properties - Part 1: Non-instrumented impact

test (ISO 179-1:2010)

EN ISO 228-1:2003, Pipe threads where pressure-tight joints are not made on the threads - Part 1:

Dimensions, tolerances and designation (ISO 228-1:2000)

EN ISO 527-1:2012, Plastics - Determination of tensile properties - Part 1: General principles (ISO 527-

1:2012)
---------------------- Page: 9 ----------------------
SIST EN 50465:2015/A1:2020
EN 50465:2015/A1:2019 (E)

EN ISO 527-2:2012, Plastics - Determination of tensile properties - Part 2: Test conditions for moulding and

extrusion plastics (ISO 527-2:2012)

EN ISO 1183-1:2012, Plastics - Methods for determining the density of non-cellular plastics - Part 1:

Immersion method, liquid pyknometer method and titration method (ISO 1183-1:2012)

EN ISO 1183-2:2004, Plastics - Methods for determining the density of non-cellular plastics - Part 2: Density

gradient column method (ISO 1183-2:2004)

EN ISO 1183-3:1999, Plastics - Methods for determining the density of non-cellular plastics - Part 3: Gas

pyknometer method (ISO 1183-3:1999)

EN ISO 2553:2013, Welding and allied processes - Symbolic representation on drawings - Welded joints (ISO

2553:2013)

EN ISO 3166-1:2014, Codes for the representation of names of countries and their subdivisions - Part 1:

Country codes (ISO 3166-1:2013)

EN ISO 4063:2010, Welding and allied processes - Nomenclature of processes and reference numbers (ISO

4063:2009, Corrected version 2010-03-01)

EN ISO 8256:2004, Plastics - Determination of tensile-impact strength (ISO 8256:2004)

EN ISO 9969:2016, Thermoplastics pipes - Determination of ring stiffness (ISO 9969:2016)

EN ISO 16852:2016, Flame arresters - Performance requirements, test methods and limits for use (ISO

16852:2016)

ISO 7-1:1994, Pipe threads where pressure-tight joints are made on the threads — Part 1: Dimensions,

tolerances and designation

ISO 37:2017, Rubber, vulcanized or thermoplastic — Determination of tensile stress-strain properties

ISO 188:2011, Rubber, vulcanized or thermoplastic — Accelerated ageing and heat resistance tests

ISO 262:1998, ISO general purpose metric screw threads — Selected sizes for screws, bolts and nuts

ISO 815-1:2014, Rubber, vulcanized or thermoplastic — Determination of compression set — Part 1: At

ambient or elevated temperatures

ISO 815-2:2014, Rubber, vulcanized or thermoplastic — Determination of compression set — Part 2: At low

temperatures

ISO 857-2:2005, Welding and allied processes — Vocabulary — Part 2: Soldering and brazing processes and

related terms

ISO 1817:2015, Rubber, vulcanized or thermoplastic — Determination of the effect of liquids

ISO 2781:2008, Rubber, vulcanized or thermoplastic — Determination of density

ISO 6914:2013, Rubber, vulcanized or thermoplastic — Determination of ageing characteristics by

measurement of stress relaxation in tension

ISO 7619-1:2010, Rubber, vulcanized or thermoplastic — Determination of indentation hardness — Part 1:

Durometer method (Shore hardness)

ISO 7619-2:2010, Rubber, vulcanized or thermoplastic — Determination of indentation hardness — Part 2:

IRHD pocket meter method
---------------------- Page: 10 ----------------------
SIST EN 50465:2015/A1:2020
EN 50465:2015/A1:2019 (E)
3 Modification to Clause 3, "Terms and definitions"
Add the following definition:
3.15
annual energy consumption

net annual energy consumption of a heater required for space heating to meet the reference annual heating

demand for a designated heating season, expressed in GJ in terms of GCV
4 Modification to subclause 5.1, General construction
Replace 7th paragraph of subclause 5.1 with the following:

"The design and the construction shall be based on a risk assessment to ensure that

a) all reasonably foreseeable hazards, hazardous situations and events throughout the anticipated mCHP

appliance’s lifetime, have been identified;

b) the risk for each of these hazards has been estimated from the combination of probability of occurrence of

the hazard and of its foreseeable severity;

c) the two factors which determine each one of the estimated risks (probability and severity) have been

eliminated or reduced to a level not exceeding the acceptable risk level as far as practically possible

through
1) inherently safe design of the construction and its methods, or

2) passive control of energy releases without endangering the surrounding environment (e.g. burst disks,

release valves, thermal cut-off devices) or by safety related control functions, and

3) for residual risks which could not have been reduced by the measures according to 1) and 2) the

provision of labels, warnings, or requirements of special training, considering that such measures

need to be understood by the persons which are in the area of the hazards.

If not stated elsewhere in this standard safety related measures are explicitly given in the measures required

for functional safety and the allocation of the class of control function shall be determined and designed in

accordance with
— EN 60335-2-102 in conjunction with EN 60335-1, on an appliance level, and
— EN 60730-1 on a control level.
NOTE The following hazards can be addressed:

— mechanical hazards: sharp surfaces, tripping hazards, moving masses and instability, strength of materials and

liquids or gases under pressure;

— electrical hazards: contact of persons with live parts, short-circuits, high voltage;

— thermal hazards: hot surfaces, release of high temperature liquids or gases, thermal fatigue;

— fire and explosion hazards: flammable gases or liquids, potential for explosive mixtures during normal or abnormal

operating conditions, potential for explosive mixtures during fault conditions;

— malfunction hazards: unsafe operation of installation related equipment due to failures of software, control circuit or

protective/safety components or incorrect manufacturing or misoperation;

— material and substance hazards: material deterioration, corrosion, embrittlement, toxic releases, choking hazards

(e.g. by replacing oxygen by inert purge gases);
---------------------- Page: 11 ----------------------
SIST EN 50465:2015/A1:2020
EN 50465:2015/A1:2019 (E)

— waste disposal hazards: disposal of toxic materials, recycling, disposal of flammable liquids or gases;

— environmental hazards: unsafe operation in hot/cold environments, rain, flooding, wind, earthquake, external fire,

smoke."
5 Modification to subclause 5.3.2 "Connection to the gas pipe"
Replace 3rd paragraph with the following:

If flanges are used, they shall comply with the relevant requirements of EN 1092-1, EN 1092-2, EN 1092-3, or

EN 1092-4, concerning the relevant flange types and their facings, dimensions, tolerances, threading, bolt

sizes, flange jointing face surface finish, materials, pressure and temperature ratings and approximate flange

masses.

6 Modification to subclause 5.10 "Operational safety in the event of failure of the

energy supply for the control systems"
Replace 1st paragraph with the following:

If the mCHP appliance uses an energy supply for the control systems, the control system shall tolerate failure

of the auxiliary energy or following its restoration without occurring hazardous situations.

7 Modification to subclause 5.12 "Conversion to different gases"
Replace 1st paragraph 8th indent with the following:

– changes of configuration parameters by data exchange (for requirements see EN 13611);

8 Modification to subclause 5.13.2.4 "Welded seams and welding fillers"
Replace 8th paragraph with the following:

The terms given in Table 7 are in accordance with EN ISO 2553; the reference numbers of welding processes

are respectively in accordance with ISO 857-2 and EN ISO 4063.
9 Modification to subclause 5.18 "Design"
Modify the title to the following:
5.18 Additional design requirements
10 Modification to subclause 5.20 "Electrical equipment"
Replace 1st paragraph with the following:
The electrical equipment of the mCHP appliance shall comply with EN 60335-2-102.
11 Modification to subclause 5.21.1 "General"
Replace 10th paragraph with the following

Rubbers used in adjusting, supervision, control and safety devices shall conform those requirements given in

EN 549 which are applicable to the parameters provided by the design specifications, e.g. temperature class,

hardness class and ozone resistance.
12 Modification to subclause 5.21.6 "Remote control"
In Subclause 5.21.6.1, General, Delete 5th paragraph
Replace 6th paragraph with the following
---------------------- Page: 12 ----------------------
SIST EN 50465:2015/A1:2020
EN 50465:2015/A1:2019 (E)
For more detailed requirements on data exchange, see EN 13611.
13 Modification to subclause 6.5.5.3.2 "Safety of operation"
Replace 1st and 2nd
...

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