kSIST FprEN 1949:2021

Specification for the installation of LPG systems for habitation purposes in leisure accommodation vehicles and accommodation purposes in other vehicles

This European Standard specifies the requirements for the installation of liquefied petroleum gas systems for habitation purposes in leisure accommodation vehicles and for accommodation purposes in other vehicles. It details safety and health requirements on the selection of materials, components and appliances, on design considerations and tightness testing of installations and on the contents of the user's handbook.
This European Standard does not cover installations supplied from other than 3rd family gases (LPG), water connections or electrical power supplies to the appliance(s). Portable appliances, incorporating their own gas supply, are not considered part of the installation and are outside the scope of this standard. It does not include the installation of LPG appliances to be used for commercial purposes or for boats. Gas supply equipment and gas appliances separate from and external to the body of the vehicle are also not considered by this standard.

Festlegungen für die Installation von Flüssiggasanlagen in bewohnbaren Freizeitfahrzeugen und zu Wohnzwecken in anderen Fahrzeugen

Dieses Dokument legt die Anforderungen an die Installation von Flüssiggasanlagen in bewohnbaren Freizeitfahrzeugen und für Wohnzwecke in anderen Fahrzeugen fest.
Im Einzelnen sind Gesundheitsschutzanforderungen zu Folgendem beschrieben:
—   Auswahl der Werkstoffe;
—   Bauteile und Geräte;
—   Bauweise;
—   Dichtheitsprüfung von Installationen;
—   Inhalt der Bedienungsanleitung.
Dieses Dokument deckt nur solche Installationen ab, die mit Gasen der dritten Familie (Flüssiggas) betrieben werden.
Folgendes wird von diesem Dokument nicht abgedeckt:
—   Wasseranschlüsse oder Stromversorgungen des Geräts bzw. der Geräte;
—   tragbare Geräte mit eigener Flüssiggasversorgung;
—   die Installation von Flüssiggasgeräten zu gewerblichen Zwecken;
—   Flüssiggasinstallationen auf Booten;
—   Flüssiggasversorgungseinrichtungen und Flüssiggasgeräte, die sich außerhalb des Fahrzeugs befinden.
Dieses Dokument deckt Flüssiggastanks ab, die die Anforderungen der Druckgeräterichtlinie (2014/68/EU) erfüllen.
Für alle Teile der Installation, die mit Drücken über 0,5 bar betrieben werden, wird auf die Druckgeräterichtlinie (2014/68/EU) hingewiesen.

Spécifications relatives aux installations des systèmes GPL pour les besoins domestiques dans les véhicules habitables de loisirs et dans les autres véhicules

La présente Norme européenne spécifie les exigences applicables à l'installation de systèmes fonctionnant aux gaz de pétrole liquéfiés pour les besoins d’habitation dans les véhicules habitables de loisirs, et à des fins d’hébergement dans les autres véhicules.
Elle détaille les exigences relatives à la santé et à la sécurité pour :
—   le choix des matériaux ;
—   les composants et appareils d'utilisation ;
—   les considérations de conception ;
—   les essais d'étanchéité des installations ;
—   le contenu du manuel d'utilisation.
Ce document ne s'applique qu’aux installations alimentées par des gaz appartenant à la troisième famille (GPL).
Elle ne couvre pas :
—   les raccordements en eau ou en énergie électrique des appareils ;
—   les appareils portatifs disposant d'une alimentation en gaz incorporée ;
—   l'installation des appareils GPL utilisés pour les besoins commerciaux ;
—   les installations GPL dans les bateaux ;
—   l'équipement d'alimentation en GPL et les appareils GPL séparés et extérieurs au corps du véhicule.
Ce document couvre les réservoirs GPL qui satisfont aux exigences de la Directive Équipements sous Pression (2014/68/UE).
L’attention est portée sur la Directive Équipements sous pression (2014/68/UE) pour toute partie de l’installation fonctionnant au-delà de 0,5 bar.

Specifikacija za vgradnjo sistemov na utekočinjeni naftni plin (UNP) v bivalna vozila za prosti čas in druga vozila

General Information

• Status: Not Published
• Public Enquiry End Date: 09-May-2018
• ICS: 43.100 - Passenger cars. Caravans and light trailers
• ICS: 75.160.30 - Gaseous fuels
• Technical Committee: PLN - Gas appliances for domestic use
• Current Stage: 5020 - Formal vote (FV) (Adopted Project)
• Start Date: 07-Jun-2021
• Due Date: 26-Jul-2021
• Completion Date: 02-Aug-2021
• Ref Project: EN 1949:2021 - Specification for the installation of LPG systems for habitation purposes in leisure accommodation vehicles and accommodation purposes in other vehicles

RELATIONS

• Revised: SIST EN 1949:2011+A1:2013 - Specification for the installation of LPG systems for habitation purposes in leisure accommodation vehicles and accommodation purposes in other vehicles
• Effective Date: 01-Apr-2018
• Replaces: SIST EN 1949:2011+A1:2013 - Specification for the installation of LPG systems for habitation purposes in leisure accommodation vehicles and accommodation purposes in other vehicles
• Effective Date: 08-Dec-2021

Standards Content (sample)

SLOVENSKI STANDARD
oSIST prEN 1949:2018
01-april-2018
6SHFLILNDFLMD]DYJUDGQMRVLVWHPRYQDXWHNRþLQMHQLQDIWQLSOLQ813YELYDOQD
YR]LOD]DSURVWLþDVLQGUXJDYR]LOD

Specification for the installation of LPG systems for habitation purposes in leisure

accommodation vehicles and accommodation purposes in other vehicles
Festlegungen für die Installation von Flüssiggasanlagen in bewohnbaren
Freizeitfahrzeugen und zu Wohnzwecken in anderen Fahrzeugen
Spécifications relatives aux installations des systèmes GPL pour les besoins

domestiques dans les véhicules habitables de loisirs et dans les autres véhicules

Ta slovenski standard je istoveten z: prEN 1949
ICS:
43.100 Osebni avtomobili. Bivalne Passenger cars. Caravans
prikolice in lahke prikolice and light trailers
75.160.30 Plinska goriva Gaseous fuels
oSIST prEN 1949:2018 en,fr,de

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

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oSIST prEN 1949:2018
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oSIST prEN 1949:2018
DRAFT
EUROPEAN STANDARD
prEN 1949
NORME EUROPÉENNE
EUROPÄISCHE NORM
April 2018
ICS 43.100; 97.200.30 Will supersede EN 1949:2011+A1:2013
English Version
Specification for the installation of LPG systems for
habitation purposes in leisure accommodation vehicles
and accommodation purposes in other vehicles

Spécifications relatives aux installations des systèmes Festlegungen für die Installation von Flüssiggasanlagen

GPL pour les besoins domestiques dans les véhicules in bewohnbaren Freizeitfahrzeugen und zu

habitables de loisirs et dans les autres véhicules Wohnzwecken in anderen Fahrzeugen

This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee

CEN/TC 181.

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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,

Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,

Turkey 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

© 2018 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 1949:2018 E

worldwide for CEN national Members.
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Contents Page

European foreword ....................................................................................................................................................... 5

1 Scope .................................................................................................................................................................... 6

2 Normative references .................................................................................................................................... 6

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

4 General Requirements ............................................................................................................................... 11

4.1 General ............................................................................................................................................................. 11

4.2 Dynamic loads ............................................................................................................................................... 12

4.3 Tightness ......................................................................................................................................................... 12

4.3.1 Requirements ................................................................................................................................................ 12

4.3.2 Test .................................................................................................................................................................... 12

4.4 Second LPG system ...................................................................................................................................... 13

4.4.1 Road vehicles ................................................................................................................................................. 13

4.4.2 Caravan holiday home ................................................................................................................................ 13

5 Gas cylinder housing ................................................................................................................................... 13

5.1 LPG Cylinder compartment ...................................................................................................................... 13

5.1.1 General ............................................................................................................................................................. 13

5.1.2 Requirements for the construction of cylinder compartments .................................................. 13

5.1.3 Ventilation for cylinder compartments ............................................................................................... 14

5.1.4 Electric equipment in cylinder compartments.................................................................................. 14

5.1.5 Distance from the engine exhaust .......................................................................................................... 15

5.1.6 Cylinder compartment part of garage or storage compartment ................................................ 16

5.1.7 Cylinder compartments with internal access .................................................................................... 17

5.2 External access without cylinder compartment ............................................................................... 17

6 LPG tank compartment .............................................................................................................................. 17

6.1 General ............................................................................................................................................................. 17

6.2 Ventilation for LPG tank compartments .............................................................................................. 18

6.3 Electric equipment in LPG tank compartments ................................................................................ 18

6.4 Distance from the engine exhaust .......................................................................................................... 18

7 Pressure regulation systems and working pressures .................................................................... 18

7.1 Working pressure ........................................................................................................................................ 18

7.2 Pressure regulation systems .................................................................................................................... 18

7.2.1 General ............................................................................................................................................................. 18

7.2.2 Road vehicles ................................................................................................................................................. 20

7.2.3 Caravan holiday home ................................................................................................................................ 20

7.3 Marking of the working pressure ........................................................................................................... 20

7.4 Devices to protect against over-pressure ............................................................................................ 20

7.5 Connection of a dual cylinder system ................................................................................................... 20

7.6 Connection of an external LPG supply by means of a plug-in connector ................................. 20

8 Components ................................................................................................................................................... 22

8.1 Hose assemblies............................................................................................................................................ 22

8.2 Pipes .................................................................................................................................................................. 22

8.2.1 Road vehicles ................................................................................................................................................. 22

8.2.2 Caravan holiday homes .............................................................................................................................. 23

8.3 Pipe fittings .................................................................................................................................................... 23

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8.3.1 General ............................................................................................................................................................. 23

8.3.2 Road vehicles.................................................................................................................................................. 24

8.3.3 Caravan holiday homes .............................................................................................................................. 25

8.4 Jointing materials ......................................................................................................................................... 26

8.5 Shut-off valves ................................................................................................................................................ 26

8.6 Manual changeover valve .......................................................................................................................... 26

9 Installation design ........................................................................................................................................ 26

9.1 General ............................................................................................................................................................. 26

9.2 Protection against mechanical damage ................................................................................................ 26

9.3 Avoidance of corrosion ............................................................................................................................... 26

9.4 Pipe sizing ....................................................................................................................................................... 26

9.5 Pipe fittings ..................................................................................................................................................... 26

9.6 Positioning of LPG pipes near to other services ................................................................................ 27

9.7 Fixing ................................................................................................................................................................. 27

9.7.1 Road vehicles.................................................................................................................................................. 27

9.7.2 Caravan holiday homes .............................................................................................................................. 27

9.8 Shut-off valves ................................................................................................................................................ 27

9.9 Equipotential bonding of LPG pipes ....................................................................................................... 28

10 Connection of appliances to the LPG supply ....................................................................................... 29

10.1 General ............................................................................................................................................................. 29

10.2 Road vehicles.................................................................................................................................................. 29

10.3 Slide outs of road vehicles ......................................................................................................................... 30

10.3.1 General ............................................................................................................................................................. 30

10.3.2 Installation ...................................................................................................................................................... 30

10.4 Caravan holiday homes .............................................................................................................................. 30

11 LPG Appliances .............................................................................................................................................. 30

11.1 Suitability of LPG appliances .................................................................................................................... 30

11.2 Installations .................................................................................................................................................... 31

11.3 Space heaters ................................................................................................................................................. 31

11.3.1 Road vehicles.................................................................................................................................................. 31

11.3.2 Caravan holiday homes .............................................................................................................................. 31

11.4 Water heaters................................................................................................................................................. 31

11.4.1 Road vehicles.................................................................................................................................................. 31

11.4.2 Caravan holiday homes .............................................................................................................................. 31

11.5 Cooking appliances ...................................................................................................................................... 32

11.6 Refrigerators .................................................................................................................................................. 32

11.7 Gas lights .......................................................................................................................................................... 33

11.8 LPG fuel cells ................................................................................................................................................... 33

11.9 LPG power generators ................................................................................................................................ 33

12 Flueing .............................................................................................................................................................. 33

12.1 Flues .................................................................................................................................................................. 33

12.2 Flue terminals ................................................................................................................................................ 34

12.3 Weather protection ...................................................................................................................................... 35

12.4 Draught diverters ......................................................................................................................................... 35

12.5 Accessibility of flues .................................................................................................................................... 35

13 Installation of LPG tanks on road vehicles supplying LPG appliances ...................................... 35

13.1 Requirements regarding the LPG tank and accessories ................................................................. 35

13.1.1 General ............................................................................................................................................................. 35

13.1.2 Additional requirements regarding the LPG tank ............................................................................ 36

13.1.3 Additional requirements regarding accessories ............................................................................... 36

13.2 Installation of the LPG tank and system requirements .................................................................. 36

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14 User’s handbook ........................................................................................................................................... 37

Annex A (normative) National regulation concerning the maximum flow rate of pressure

regulating devices for caravan holiday homes .................................................................................. 39

Annex B (informative) National situations in the Member States ........................................................... 41

Annex C (informative) Manufacturer declaration ......................................................................................... 43

Bibliography ................................................................................................................................................................. 44

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oSIST prEN 1949:2018
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European foreword

This document (prEN 1949:2018) has been prepared by Technical Committee CEN/TC 181 “Dedicated

liquefied petroleum gas appliances”, the secretariat of which is held by AFNOR.
This document is currently submitted to the CEN Enquiry.

The following main technical changes have been made compared to EN 1949:2011+A1:2013:

a) definition for tank compartment has been added;
b) requirements for tank compartment have been added;

c) several clauses have been separated to clearly state the requirements for road vehicles and caravan

holiday homes
d) requirements for slide outs have been added;

e) requirements for electric installations inside gas compartments have been extended;

f) requirements for tanks and tank installations have been extended;

g) Annex A for national regulation concerning the maximum flow rate of pressure regulating devices

for caravan holiday homes has been added;
h) Annex B (old) has been deleted;
i) former Annex A became Annex B;
j) Annex C has been updated;
k) requirements for cylinder compartment with internal excess has been amended;
l) declaration of conformity is now mandatory;
m) calculation method for the leak test has been added.
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1 Scope

This European Standard specifies the requirements for the installation of liquefied petroleum gas systems

for habitation purposes in leisure accommodation vehicles and for accommodation purposes in other

vehicles. It details:
— health and safety requirements on the selection of materials;
— components and appliances;
— on design considerations;
— tightness testing of installations;
— the contents of the user's handbook.

This European Standard does not cover installations supplied from other than 3rd family gases (LPG),

water connections or electrical power supplies to the appliance(s). Portable appliances, incorporating

their own gas supply, are not considered part of the installation and are outside the scope of this standard.

It does not include the installation of LPG appliances to be used for commercial purposes or for boats. Gas

supply equipment and gas appliances separate from and external to the body of the vehicle are also not

considered by this standard.

This standard covers tanks which fulfil the requirements of the Pressure Equipment Directive

(2014/68/EU).
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 331, Manually operated ball valves and closed bottom taper plug valves for gas installations for buildings

EN 624, Specification for dedicated LPG appliances - Room sealed LPG space heating equipment for

installation in vehicles and boats

EN 732, Specifications for dedicated liquefied petroleum gas appliances - Absorption refrigerators

EN 751-2, Sealing materials for metallic threaded joints in contact with 1st, 2nd and 3rd family gases and

hot water - Part 2: Non-hardening jointing compounds

EN 1057, Copper and copper alloys — Seamless, round copper tubes for water and gas in sanitary and

heating applications

EN 1254-1, Copper and copper alloys - Plumbing fittings - Part 1: Fittings with ends for capillary soldering

or capillary brazing to copper tubes

EN 1254-2, Copper and copper alloys - Plumbing fittings - Part 2: Fittings with compression ends for use

with copper tubes

EN 1254-4, Copper and copper alloys - Plumbing fittings - Part 4: Fittings combining other end connections

with capillary or compression ends
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EN 10226-1, 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 10305-1, Steel tubes for precision applications - Technical delivery conditions - Part 1: Seamless cold

drawn tubes

EN 10305-2, Steel tubes for precision applications - Technical delivery conditions - Part 2: Welded cold

drawn tubes

EN 10305-3, Steel tubes for precision applications - Technical delivery conditions - Part 3: Welded cold sized

tubes
EN 12979:2002, Automotive LPG-systems — Installation requirements
EN 14291, Foam producing solutions for leak detection on gas installations

EN 15033, Room sealed storage water heaters for the production of sanitary hot water using LPG for

vehicles and boats

prEN 16436-2, Rubber and plastics hoses, tubing and assemblies for use with propane and butane and their

mixtures in the vapour phase — Part 2: Assemblies

EN ISO 1127, Stainless steel tubes - Dimensions, tolerances and conventional masses per unit length (ISO

1127:1992)

EN ISO 8434-1, Metallic tube connections for fluid power and general use - Part 1: 24 degree cone

connectors (ISO 8434-1)

ISO 8434-2, Metallic tube connections for fluid power and general use — Part 2: 37 degree flared connectors

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:

• IEC Electropedia: available at http://www.electropedia.org/
• ISO Online browsing platform: available at http://www.iso.org/obp
3.1
leisure accommodation vehicle

unit of living accommodation for temporary or seasonal occupation that may meet requirements for

construction and use of road vehicles
[SOURCE: EN 13878:2003, definition 3.21]
3.2
caravan

trailer leisure accommodation vehicle that meets requirements for construction and use of road vehicles

[SOURCE: EN 13878:2003, definition 3.5]
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3.3
motor caravan

self-propelled leisure accommodation vehicle that meets requirements for construction and use of road

vehicles. It contains at least seats and table, sleeping accommodation which may be converted from the

seats, cooking facilities and storage facilities
[SOURCE: EN 13878:2003, definition 3.26]
3.4
caravan holiday home

transportable leisure accommodation vehicle that does not meet requirements for construction and use

of road vehicles, that retains means for mobility and is for temporary or seasonal occupation

[SOURCE: EN 13878:2003, definition 3.6]
3.5
liquefied petroleum gas (LPG)

mixture of light hydrocarbons composed mainly of propane, butane and their isomers, gaseous under

conditions of normal temperature and pressure

Note 1 to entry: LPG is maintained in its liquid state by increased pressure or lowered temperature.

Note 2 to entry: In some countries, UN numbers 1011 and 1978 may also be designated LPG.

3.6
LPG appliance

appliance that is designed for heating, cooking, lighting, refrigeration, hot water production or electricity

production (fuel cell or generator), using LPG as its energy source
3.7
LPG system
assembly of an installation and its appliances
3.8
liquefied petroleum gas installation

installation usually consisting of fuel container(s), pressure regulator(s), piping, hose assemblies and

shut-off devices, providing liquefied petroleum gas to appliances
3.9
pressure regulation system

system incorporating one or more regulators with or without change-over device to reduce the supply

pressure of the system to the required working pressure for the appliance(s)
3.10
regulator

device which maintains a regulated pressure within preset limits, whatever the upstream pressure, rate

and temperature
3.11
changeover device

device which maintains the gas supply continuity by using gas from a “cylinder”, a “tank” or an external

supply manually chosen by the user or automatically
[SOURCE: EN 16129:2013, definition 3.1.2]
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3.12
room sealed appliance

appliance that has the combustion system, including the air inlet and products outlet, isolated from any

internal area
3.13
open-flue appliance

appliance designed to be connected to a flue via a draught diverter, its combustion air being drawn from

the room or internal space in which it is installed
3.14
closed-flue appliance

appliance where the flue is closed from a room or internal space due to the absence of a draught diverter,

flue break and any draught break within the flue
3.15
flueless appliance

appliance that discharges its products of combustion into the compartment in which it is installed

3.16
flue
duct designed to convey the products of combustion to the exterior of a vehicle
3.17
flue terminal

part of the flue system through which the products of combustion are discharged to the outside (cowl)

3.18
shut-off valve

device to interrupt the flow of gas, having one inlet and one or more individually controlled outlets

3.19
liquefied petroleum gas cylinder
portable container for liquefied petroleum gas

Note 1 to entry: portable containers which are refilled outside the vehicle are considered as cylinders (see

ADR 4.1.4, P200).
[SOURCE: EN 13878:2003, definition 3.23]
3.20
LPG cylinder compartment
space specially constructed to accommodate liquefied petroleum gas cylinder(s)
3.21
flame supervision device

device that has a sensing element, activated by the presence or absence of a flame, that causes the inlet

of the LPG supply to a burner to be opened or closed
3.22
pilot

small burner that provides a continuously burning flame to ignite a main burner when required

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3.23
tightness
absence of leakage greater than the specified limit
3.24
hard soldering

soldering for which the lowest temperature of the melting range, after application, is not less than 450 °C

3.2
...