FprEN 50292

Electrical apparatus for the detection of carbon monoxide in domestic premises, caravans and boats - Guide on the selection, installation, use and maintenance

This document serves as a guide on the selection, installation, use and maintenance of apparatus for the detection of carbon monoxide, intended for continuous operation in a fixed installation in domestic premises, caravans and boats. This guide is intended to cover any type of domestic or residential accommodation, including leisure accommodation vehicles such as touring and static caravans, and motor homes; and recreational craft such as canal barges. Some static caravans are used as permanent dwellings, in such cases EN 50291 1 is appropriate. For all other types of caravan, EN 50291 2 is appropriate. This guide is read in conjunction with EN 50291 1 and EN 50291 2 together with any additional relevant national or local regulations. This document refers to the installation of two types of apparatus: a) Type A apparatus, to provide a visual and audible alarm and an executive action in the form of an output signal that can be used to actuate directly or indirectly a ventilation or other ancillary device; b) Type B apparatus, to provide a visual and audible alarm only. This document excludes apparatus for the detection of combustible gases (see EN 50244) and for industrial installations or commercial premises.

Elektrische Geräte für die Detektion von Kohlenmonoxid in Wohnhäusern, Caravans und Booten - Leitfaden für Auswahl, Installation, Benutzung und Instandhaltung

Matériels électriques pour la détection de monoxyde de carbone dans les locaux à usage domestique, caravanes et bateaux - Guide de sélection, d'installation, d'utilisation et de maintenance

Le présent document sert de guide sur la sélection, l’installation, l’utilisation et la maintenance des matériels de détection de monoxyde de carbone, prévus pour un fonctionnement continu dans une installation fixe, dans les locaux à usage domestique, les caravanes et les bateaux. Ce guide est destiné à couvrir tout type d’habitations résidentielles ou domestiques, y compris les véhicules habitables de loisirs comme les caravanes stationnaires ou mobiles, les camping-cars et les embarcations de loisir comme les péniches sur canaux. Certaines caravanes stationnaires sont utilisées en logements permanents, et dans ce cas, l’EN 50291 1 s’applique. Pour tous les autres types de caravanes, l’EN 50291 2 s’applique. Ce guide est lu en complément de l’EN 50291 1 et de l’EN 50291 2, et de toutes réglementations nationales ou locales supplémentaires concernées. Le présent document se réfère à l’installation de deux types de matériels: a) matériels de type A, pour fournir une alarme visuelle et sonore et une action d’exécution sous forme d’un signal de sortie qui peut être utilisé pour actionner directement ou indirectement une ventilation ou encore tout autre dispositif auxiliaire; b) matériels de type B, pour fournir une alarme visuelle et sonore uniquement. Le présent document ne tient pas compte des matériels de détection de gaz combustibles (voir l’EN 50244) ni de ceux destinés aux installations industrielles ou aux locaux à usage commercial.

Električni aparati za zaznavanje ogljikovega monoksida v stanovanjskih prostorih, bivalnih prikolicah in čolnih - Navodilo za izbiro, vgradnjo, uporabo in vzdrževanje

General Information

• Status: Not Published
• Publication Date: 06-Jul-2023
• ICS: 13.320 - Alarm and warning systems
• Technical Committee: CLC/TC 216 - Gas detectors (see also SC 31-9)
• Drafting Committee: CLC/TC 216/WG 16 - Working Group for the revision of EN 50292
• Current Stage: 5060 - Voting results sent to TC, SR - Formal Approval
• Start Date: 10-Feb-2023
• Due Date: 12-Jul-2023
• Completion Date: 10-Feb-2023
• Ref Project: kSIST FprEN 50292:2022 - Electrical apparatus for the detection of carbon monoxide in domestic premises, caravans and boats - Guide on the selection, installation, use and maintenance

Relations

• Revised: EN 50292:2013 - Electrical apparatus for the detection of carbon monoxide in domestic premises, caravans and boats - Guide on the selection, installation, use and maintenance
• Effective Date: 01-Jun-2021

Standards Content (Sample)

SLOVENSKI STANDARD
oSIST prEN 50292:2022
01-junij-2022

Električni aparati za zaznavanje ogljikovega monoksida v stanovanjskih prostorih,

bivalnih prikolicah in čolnih - Navodilo za izbiro, vgradnjo, uporabo in vzdrževanje

Electrical apparatus for the detection of carbon monoxide in domestic premises,
caravans and boats - Guide on the selection, installation, use and maintenance

Elektrische Geräte für die Detektion von Kohlenmonoxid in Wohnhäusern, Caravans und

Booten - Leitfaden für Auswahl, Installation, Benutzung und Instandhaltung
Matériels électriques pour la détection de monoxyde de carbone dans les locaux à

usage domestique, caravanes et bateaux - Guide de sélection, d'installation, d'utilisation

et de maintenance
Ta slovenski standard je istoveten z: prEN 50292:2022
ICS:
13.320 Alarmni in opozorilni sistemi Alarm and warning systems
97.030 Električni aparati za dom na Domestic electrical
splošno appliances in general
oSIST prEN 50292:2022 en

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

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oSIST prEN 50292:2022
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oSIST prEN 50292:2022
EUROPEAN STANDARD DRAFT
prEN 50292
NORME EUROPÉENNE
EUROPÄISCHE NORM
April 2022
ICS Will supersede EN 50292:2013
English Version
Electrical apparatus for the detection of carbon monoxide in
domestic premises, caravans and boats - Guide on the selection,
installation, use and maintenance

Matériels électriques pour la détection de monoxyde de Elektrische Geräte für die Detektion von Kohlenmonoxid in

carbone dans les locaux à usage domestique, caravanes et Wohnhäusern, Caravans und Booten - Leitfaden für

bateaux - Guide de sélection, d'installation, d'utilisation et Auswahl, Installation, Benutzung und Instandhaltung

de maintenance
This draft European Standard is submitted to CENELEC members for enquiry.
Deadline for CENELEC: 2022-07-15.
It has been drawn up by CLC/TC 216.

If this draft becomes a European Standard, CENELEC 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 CENELEC in three official versions (English, French, German).

A version in any other language made by translation under the responsibility of a CENELEC member into its own language and notified to

the CEN-CENELEC Management Centre has the same status as the official versions.

CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,

Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the

Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,

Turkey and the 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 Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels

© 2022 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.

Project: 74018 Ref. No. prEN 50292:2022 E
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Contents Page

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

Introduction ......................................................................................................................................................... 6

1 Scope ...................................................................................................................................................... 7

2 Normative references ............................................................................................................................ 7

3 Terms and definitions ........................................................................................................................... 7

4 Sources of carbon monoxide ............................................................................................................. 10

4.1 General information ............................................................................................................................. 10

4.2 Normal exposure levels ...................................................................................................................... 10

4.3 Burning of carbonaceous materials for heating and cooking ........................................................ 10

4.3.1 General .................................................................................................................................................. 10

4.3.2 Space and water heating ..................................................................................................................... 10

4.3.3 Cooking ................................................................................................................................................. 10

4.4 Uncontrolled burning .......................................................................................................................... 11

4.5 Tobacco smoking ................................................................................................................................ 11

4.6 Fuel burning appliances ..................................................................................................................... 11

4.7 Migration of CO .................................................................................................................................... 11

5 Installation ............................................................................................................................................ 11

5.1 General .................................................................................................................................................. 11

5.2 Planning and Configuration................................................................................................................ 11

5.2.1 General .................................................................................................................................................. 11

5.2.2 Configuration and installation ............................................................................................................ 12

5.2.3 Siting ..................................................................................................................................................... 13

5.3 Types of apparatus .............................................................................................................................. 15

5.4 Special Needs and Risk Groups ........................................................................................................ 15

6 Examples of executive actions (valid only for Type A apparatus) ................................................. 16

6.1 General .................................................................................................................................................. 16

6.2 Shut-off valve ....................................................................................................................................... 16

6.3 Ventilation system ............................................................................................................................... 16

6.4 Mains electrical switch ........................................................................................................................ 16

6.5 Remote alarm ....................................................................................................................................... 16

6.6 Additional signalling devices ............................................................................................................. 16

6.7 Link between apparatus and ancillary device .................................................................................. 16

7 Advice to the installer ......................................................................................................................... 17

7.1 Use of alarm ......................................................................................................................................... 17

7.2 Manufacturer’s instructions ............................................................................................................... 17

7.3 Location ................................................................................................................................................ 17

7.4 Power supply ....................................................................................................................................... 17

7.5 Indicators .............................................................................................................................................. 17

7.6 Nuisance Alarms .................................................................................................................................. 17

7.7 Maintenance ......................................................................................................................................... 18

7.8 Lifetimes ............................................................................................................................................... 18

8 Emergency actions .............................................................................................................................. 18

Annex A (informative) Health effects ............................................................................................................. 19

A.1 Toxic effects ......................................................................................................................................... 19

A.2 Chronic effects on high risk groups .................................................................................................. 20

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A.3 Normal COHb levels ............................................................................................................................ 21

A.4 Tobacco smoking ................................................................................................................................ 21

Annex B (informative) Philosophy of setting alarm levels .......................................................................... 22

Annex C (informative) Emergency actions ................................................................................................... 24

Bibliography ...................................................................................................................................................... 26

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oSIST prEN 50292:2022
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European foreword

This document (prEN 50292:2022) has been prepared by CLC/TC 216, Chemical disinfectants and

antiseptics.
This document is currently submitted to the Enquiry.
The following dates are proposed:
• latest date by which the existence of this (doa) dor + 6 months
document has to be announced at national
level
• latest date by which this document has to be (dop) dor + 12 months
implemented at national level by publication of
an identical national standard or by
endorsement
• latest date by which the national standards (dow) dor + 36 months
conflicting with this document have to be (to be confirmed or
withdrawn modified when voting)

This document will supersede EN 50292:2013 and all of its amendments and corrigenda (if any).

EN 50292:2022 includes the following significant technical changes with respect to EN 50292:2013 (various

minor changes have also been made).

— Document title revised to include applications that are similar to domestic premises

— Section titles have been revised to be clearer

— Normative references have been extended to include smoke and CO alarm standards

— 3, Definitions have been extended and revised, e.g. to bring in line with other standards

— 4, sources of carbon monoxide have been revised to include wood pellets, and ethanol

— 4.3.1, included reference to Inversion weather conditions
— 4.3.3, revised title and text to improve clarity
— 4.5, include reference to other smoke emitting sources such as Shisha venues
— 4.6, Revised
— 4.7, Revised with reference to CO diffusion.
— 5.2, Title revised
— 5.2.1, Title revised
— 5.2.2, Title revised
— 5.2.2, Content revised for easier reading and improved clarity
— 5.2.2.1, revised to improve clarity and refence to other standards included
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— 5.2.2.2, New section covering wood pellets, wood chips and biomass briquettes added

— 5.2.2.3, renumbered and revised Caravans and recreational craft
— 5.2.3, title revised for improved clarity
— 5.2.3.1, Revised throughout
— 5.2.3.1, Title revised, Text revised for improved clarity
— 5.2.3.3, Title revised, Text revised for improved clarity
— 5.2.3.4, Title revised, Text revised for improved clarity

— 5.2.3.5, Revised with additional information on siting in caravans and recreational craft

— 5.3, Revised to include reference to other standards
— 5.4, New section referencing Special needs and Risk Groups
— 6, Title revised
— 6.1, text revised to include references to other sections in this standard
— 6.3, Title revised and updated text in relation to ventilation systems
— 6.4, Added examples on hazards
— 6.5, Revised section

— 6.6, title and text revised to reference to the principle of two senses for additional signalling

— 7, Title revised
— 7.1, revised for improved clarity
— 7.2, revised for improved clarity
— 7.5, revised for improved clarity
— 7.6, Revised title and updated text on nuisance alarms
— 7.7, Complete revision of maintenance and lifetimes sections
— 8, Emergency actions moved to Annex C
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Introduction

This document is intended to be a guide for people who, in the course of their professional activities, are

required to install apparatus for the detection of carbon monoxide (CO) in domestic premises. It is also aimed

at anyone who might supply such detectors to members of the public for subsequent installation according to

national regulations, so that advice may be given based on good engineering practice.

Apparatus for the detection of carbon monoxide are not a substitute for good installation and regular servicing

of fuel burning appliances or regular cleaning of chimneys, although they may provide an added margin of

reassurance for users. Domestic carbon monoxide detectors with or without some form of executive function

may overcome fears of fuel safety and may be particularly beneficial in certain circumstances.

It is necessary to understand that carbon monoxide toxicity may have different consequences according to the

physical condition of the individual. Thus, a carbon monoxide detector designed according to EN 50291 series

may not fully safeguard individuals with specific medical conditions.

Carbon monoxide detectors are not intended to be used as an alternative to smoke alarms.

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1 Scope

This document serves as a guide on the selection, installation, use and maintenance of apparatus for the

detection of carbon monoxide, intended for continuous operation in a fixed installation in domestic premises,

caravans and boats. This guide is intended to cover any type of domestic or residential accommodation,

including leisure accommodation vehicles such as touring and static caravans, and motor homes; and

recreational craft such as canal barges. Some static caravans are used as permanent dwellings, in such

cases EN 50291-1 is appropriate. For all other types of caravan, EN 50291-2 is appropriate. This guide is read

in conjunction with EN 50291-1 and EN 50291-2 together with any additional relevant national or local

regulations.
This document refers to the installation of two types of apparatus:

a) Type A apparatus, to provide a visual and audible alarm and an executive action in the form of an output

signal that can be used to actuate directly or indirectly a ventilation or other ancillary device;

b) Type B apparatus, to provide a visual and audible alarm only.

This document excludes apparatus for the detection of combustible gases (see EN 50244) and for industrial

installations or commercial premises.
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 1775, Gas supply - Gas pipework for buildings - Maximum operating pressure less than or equal to 5 bar -

Functional recommendations

EN 50291-1:2018, Gas detectors - Electrical apparatus for the detection of carbon monoxide in domestic

premises - Part 1: Test methods and performance requirements
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply:

ISO and IEC maintain terminological databases for use in standardization at the following addresses:

• ISO Online browsing platform: available at https://www.iso.org/obp
• IEC Electropedia: available at http://www.electropedia.org/
3.1
domestic premises

house or building, or part thereof, residential park homes, or non-recreational boats such as canal barges, in

which persons sojourn, reside or sleep as intended
3.2
fixed installation

apparatus which is intended to have all parts except replaceable batteries permanently installed

3.3
sensor

assembly in which the sensing element is housed that may contain associated circuit component

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3.4
sensing element
device, the output of which will change in the presence of carbon monoxide
3.5
continuous operation

apparatus that is continuously powered with continuous or intermittent automatic sensing

3.6
apparatus
carbon monoxide detection device according to EN 50291-1

Note 1 to entry: Carbon monoxide detection apparatus may also be generically termed “gas detectors” or “CO alarms”.

3.7
volume ratio
V/V
ratio of the volume of carbon monoxide to the volume of the gas mixture

Note 1 to entry: Volume ratio (V/V) is often expressed in units of parts per million (ppm); it is commonly referred to as

concentration.
3.8
output signal

signal (Type A apparatus acc. EN 50291-1 only) characterised by a standby and an activation state, by which

action may be initiated

Note 1 to entry: In many cases, such action will entail triggering an ancillary device.

3.9
warm-up time

time interval between the time when the apparatus is switched on and the time when the apparatus is fully

operational
3.10
alarm set level

fixed setting of the apparatus that determines the volume ratio and duration of exposure at which the

apparatus will automatically initiate an alarm and, for type A apparatus, an output signal

3.11
fault warning
visual and audible signal indicating a faulty or failed apparatus
3.12
mains-powered apparatus

apparatus designed to be powered by the domestic mains electrical supply, with or without an additional

power source
3.13
battery-powered apparatus
apparatus designed to be powered by batteries only
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3.14
leisure accommodation vehicle

leisure accommodation vehicle (LAV) unit of living accommodation for temporary or seasonal occupation that

may meet requirements for construction and use of road vehicles
EXAMPLE: Motor home, caravan, motorhome.

Note 1 to entry: Other motorised vehicles like trucks are known to have residential accommodation. They are not leisure

accommodation vehicles but are considered as similar vehicles in this document.
3.15
recreational craft

boat of a minimum length of 2,5 m and a maximum length of 24 m as specified in Directive 94/25/EC, which is

intended for sports or leisure purposes
3.16
corridor

connection between rooms and the exit of a unit, intended as an emergency route; this includes passageways

and stairwells within a unit
3.17
unit

apartment, one-family house or comparable single or multi-storey group of rooms with residential-like use or

suitability
3.18
connected devices

devices which are wired or wirelessly interconnected with the apparatus, to activate an audible alarm (or any

other action) on all connected devices, in cases where the apparatus is in a CO alarm condition

3.19
circulation space

space (including a stairway) inside a dwelling mainly used as a means of access between a room and an exit

from the dwelling
3.20
dwelling

flat or maisonette, comprising one or more rooms, forming a separate unit of residential accommodation within

a building
3.21
dwelling house
building comprising one or more storeys and multiple flats or maisonettes
3.22
multiple dwelling building
building comprising one or more storeys and multiple flats or maisonettes
3.23
flat

self-contained premises for residential use which are separated from other parts (e.g. other dwellings) of a

building and which have an own access door
3.24
combination/multi-sensor device

unit containing all the components, except possible the normal power source, necessary for detecting

hazardous levels of smoke or carbon monoxide and for giving an audible alarm, which can comprise one or

more parts such as a base (socket) and a head (body)
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4 Sources of carbon monoxide
4.1 General information

Carbon monoxide is a colourless, odourless, non-irritating gas which is classified as a chemical asphyxiant,

whose toxic action is a direct result of the hypoxia produced by a given exposure (see Annex A and Annex B).

4.2 Normal exposure levels

Carbon monoxide can be generated within a building or enter from outside. The normal average background

levels of carbon monoxide in domestic premises, measured over periods of 1 h to 24 h, are less than 10 ppm.

In cases of climatic inversion, higher levels of carbon monoxide are possible.
4.3 Burning of carbonaceous materials for heating and cooking
4.3.1 General

Most of the carbon monoxide in the environment is produced during combustion of carbonaceous material,

e.g. solid fuels (such as coal, coke and wood), liquid fuels (such as oil, petrol and ethanol) and gaseous fuels

(such as natural gas, town gas and liquefied petroleum gas (LPG)).

It should be noted that town gas is still used in some EU countries, and it can contain a significant proportion

of carbon monoxide prior to combustion.

The proportion and constituents of the combustion products from carbonaceous fuels will depend on the

particular fuel and the combustion conditions.

Varying concentrations of carbon monoxide are produced from most combustion processes. Exhaust gases

from burning solid and liquid fuels may contain significant concentrations of carbon monoxide: levels of

20 000 ppm to 50 000 ppm (2 % to 5 %) are not unexpected. For example, burning coal, wood or peat can

produce concentrations of 20 000 ppm, 40 000 ppm and 50 000 ppm respectively. In addition, poorly

maintained and inefficient burners can produce considerably higher levels of carbon monoxide.

A flue reversal may occur both under certain climatic conditions (e.g. inversion weather situations), as well as

in the cases of foreign bodies completely or partially blocking the smoke fumes. This applies to facilities where

the combustion air is taken from the rooms, as well as to those whose combustion air is supplied to the

appliance independent from room air. This is normally a temporary phenomenon. But it cannot be foreseen,

and it may occur at any time, and it may last over an incalculable period of time, even if the appliance is

correctly maintained.
4.3.2 Space and water heating

Solid, liquid and gaseous fuels may be used for space and water heating. They are used in a variety of ways,

either as a local heat source or as a remote central heat source, including
— appliance with flue using room air,
— appliance without flue using room air,
— appliance with flue using external air.

In the case of a defective ducted air heater, carbon monoxide can be distributed into remote rooms.

4.3.3 Cooking

Natural gas, town gas or LPG (Liquid Petroleum Gas) are the main fuels for cooking, typically using flueless

appliances including cooking ranges. In some cases, solid fuels or oil are used in cooking appliances that are

generally fitted with flues.

Portable cooking and heating equipment. It should be emphasized that charcoal grills emit very high levels of

carbon monoxide and should only be used outdoors, but never as an air heater in any kind of recreational

facilities, including tents.
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It is also warned about the indoor operation of gas-powered mobile heaters (mushroom / patio heaters). Even

those devices can emit increased levels of carbon monoxide and should therefore be operated only outdoors

4.4 Uncontrolled burning

Carbon monoxide is a major gaseous product from fires resulting from uncontrolled burning of carbonaceous

material. Varying concentrations of carbon monoxide are produced, depending on the material, burning

conditions, etc.
4.5 Tobacco smoking

Smoking produces a significant concentration of carbon monoxide. This becomes a particular problem in

situations where there are large number of smoke emitting sources such as shisha venues. Unfortunately, in

this particular case it is difficult to recommend the use of EN 50291-1 alarms and advise on siting due to the

fact that the sources of CO are regularly relocated.
4.6 Fuel burning appliances

The products of combustion for any fuel burning appliance are particularly dangerous in enclosed spaces.

This would include exhaust gases from internal combustion engines and large heating systems in residential

boiler rooms.

The exhaust gases from internal combustion engines (vehicles or electricity generators for example) running

in an enclosed space can quickly produce dangerous levels of carbon monoxide.
4.7 Migration of CO

Latest studies have shown that released CO (i.e. in a boiler room) can spread not only by diffusion through

open spaces such as cable ducts, door sills, keyholes, etc., but also by permeation through walls and ceilings

throughout the entire building. The speed of permeation depends on the building materials used (wood, brick,

concrete, plasterboard, etc.) and cannot generally be given as an exact value. For this reason, it is

recommended that every room with a fuel burning appliance should be equipped with an apparatus to detect

any notable exposition of CO as early as possible.
5 Installation
5.1 General

The manufacturer is required to provide suitable instructions for the correct and safe installation of the

apparatus and to indicate on the apparatus and its packaging that these instructions should be read carefully

before installing or operating the apparatus.
Generally, the same considerations apply to both type A and type B apparatus.
5.2 Planning and Configuration
5.2.1 General

The design and layout of domestic premises, caravans and boats and the number, type and position of carbon

monoxide sources vary widely. To minimize the risk of nuisance alarms or damage to the sensors, in the

following sections only general guidance can be given as to where apparatus should be installed or which

mounting locations are unsuitable for this purpose.
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5.2.2 Configuration and installation
5.2.2.1 Rooms

An apparatus should be installed in every room containing a fuel-burning appliance.

a) If a fuel-burning appliance is in a room that is part of the dwelling, the apparatus may be interconnected

to other apparatus or smoke alarms according to the requirements of EN 50291-1:2018, 5.13, within the

same dwelling, to ensure an appropriate early warning for occupants

— in rooms in which the occupant(s) spend considerable time whilst awake and from which they may

not be able to hear an alarm from apparatus in another part of the premises, i.e. due to a complex

and/ or large dwelling or closed doors between the apparatus and other rooms
— in every sleeping room.
b) If a dwe
...