Chimneys - Design, installation and commissioning - Part 2: Chimneys and connecting flue pipes for room sealed combustion appliances

This document describes the method of specifying the design, installation and labelling criteria for chimney systems, construction of custom-built chimneys, the relining or converting of existing chimneys, connecting flue pipes and air supply pipes for room sealed combustion appliances as well as the use of chimney products. It also gives information on commissioning of an installed chimney.
This document applies to chimneys which are subject to the following limiting conditions:
-   the distance between the supports not to exceed 4 m;
-   the distance above the last structural attachment not to exceed 3 m;
-   the free-standing height above the uppermost structural support attachment for chimneys with rectangular cross section is not more than five times the smallest external dimension.
This document does not cover:
-   chimneys which serve a mixture of fan assisted or forced draught burners or natural draught appliances,
-   installations having a configuration of the type C2.
NOTE   Room sealed gas appliances are classified as type C according to EN 1749.
The methods in this part of this document are applicable to chimneys and connecting flue pipes for room sealed combustion appliances. The methods in Part 1 of this document are applicable to chimneys and connecting flue pipes for non-room sealed combustion appliances.

Abgasanlagen - Planung, Montage und Abnahme - Teil 2: Senkrechte Teile von Abgasanlagen und Verbindungsstücke für raumluftunabhängige Verbrennungseinrichtungen

Conduits de fumée - Conception, installation et mise en service - Partie 2 : Conduits de fumée et conduits de raccordement pour appareils de combustion à circuit étanche

Dimniki - Projektiranje, vgradnja in pregled - 2. del: Dimniki in povezovalni dimovodi za ogrevalne naprave v zatesnjenih prostorih

General Information

Status
Not Published
Publication Date
28-Sep-2023
Current Stage
4599 - Dispatch of FV draft to CMC - Finalization for Vote
Start Date
01-Dec-2022
Due Date
25-Feb-2023
Completion Date
01-Dec-2022

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SLOVENSKI STANDARD
oSIST prEN 15287-2:2021
01-november-2021
Dimniki - Projektiranje, vgradnja in pregled - 2. del: Dimniki in povezovalni
dimovodi za ogrevalne naprave v zatesnjenih prostorih

Chimneys - Design, installation and commissioning - Part 2: Chimneys and connecting

flue pipes for room sealed combustion appliances
Abgasanlagen - Planung, Montage und Abnahme - Teil 2: Senkrechte Teile von
Abgasanlagen und Verbindungsstücke für raumluftunabhängige
Verbrennungseinrichtungen

Conduits de fumée - Conception et mise en œuvre - Partie 2 : Conduits de fumée et

conduits de raccordement pour appareils à combustion a qui ne dépendent pas de l’air

dans la pièce
Ta slovenski standard je istoveten z: prEN 15287-2
ICS:
91.060.40 Dimniki, jaški, kanali Chimneys, shafts, ducts
oSIST prEN 15287-2:2021 en,fr,de

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

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oSIST prEN 15287-2:2021
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oSIST prEN 15287-2:2021
DRAFT
EUROPEAN STANDARD
prEN 15287-2
NORME EUROPÉENNE
EUROPÄISCHE NORM
September 2021
ICS 91.060.40 Will supersede EN 15287-2:2008
English Version
Chimneys - Design, installation and commissioning - Part
2: Chimneys and connecting flue pipes for room sealed
combustion appliances

Conduits de fumée - Conception, installation et mise en Abgasanlagen - Planung, Montage und Abnahme - Teil

service - Partie 2 : Conduits de fumée et conduits de 2: Senkrechte Teile von Abgasanlagen und

raccordement pour appareils de combustion à circuit Verbindungsstücke für raumluftunabhängige

étanche Verbrennungseinrichtungen

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

CEN/TC 166.

If this draft becomes a European Standard, CEN members are bound to comply with the CEN/CENELEC Internal Regulations

which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.

This draft European Standard was established by CEN in three official versions (English, French, German). A version in any other

language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC

Management Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,

Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,

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

© 2021 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 15287-2:2021 E

worldwide for CEN national Members.
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oSIST prEN 15287-2:2021
prEN 15287-2:2021 (E)
Contents Page

European foreword ...................................................................................................................................................... 6

Introduction .................................................................................................................................................................... 7

1 Scope .................................................................................................................................................................... 8

2 Normative references .................................................................................................................................... 8

3 Terms and definitions ................................................................................................................................. 10

4 Design ................................................................................................................................................................ 21

4.1 General.............................................................................................................................................................. 21

4.1.1 Temperature classes.................................................................................................................................... 21

4.1.2 Pressure classes ............................................................................................................................................ 22

4.1.3 Condensate resistance classes ................................................................................................................. 22

4.1.4 Corrosion resistance classes ..................................................................................................................... 23

4.1.5 Sootfire resistance classes ......................................................................................................................... 24

4.1.6 Minimum distance to combustible material and type of installation ........................................ 24

4.2 Required information ................................................................................................................................. 26

4.2.1 Sources of data and information ............................................................................................................. 26

4.2.2 Local conditions............................................................................................................................................. 26

4.2.3 Combustion appliance information ....................................................................................................... 26

4.2.4 Building structure and chimney system route information .......................................................... 26

4.2.6 Chimney product specification ................................................................................................................ 27

4.3 Design requirements ................................................................................................................................... 27

4.3.1 General.............................................................................................................................................................. 27

4.3.2 Route of the installation ............................................................................................................................. 27

4.3.3 Designation of the chimney and connecting flue pipe ..................................................................... 29

4.3.4 Materials of construction ........................................................................................................................... 31

4.3.5 Chimney system sizing and characteristics ......................................................................................... 32

4.3.6 Installation requirements ......................................................................................................................... 33

4.3.7 Accessories ...................................................................................................................................................... 37

4.4 Chimney plate and additional information ......................................................................................... 40

5 Installation ...................................................................................................................................................... 41

5.1 General.............................................................................................................................................................. 41

5.2 Construction of relined or converted chimney systems ................................................................. 41

5.3 Chimney plate................................................................................................................................................. 41

6 Commissioning/handover ......................................................................................................................... 42

Annex A (informative) Terminology ................................................................................................................... 43

Annex B (informative) Examples of installation configurations .............................................................. 48

Annex C (informative) List of combustion appliance data required for the design of a

chimney ............................................................................................................................................................ 53

C.1 For choosing the chimney type (required chimney designation): .............................................. 53

C.2 For calculation of the chimney (sizing, see 4.3.4): ............................................................................ 53

C.3 For appliance/connecting flue pipe/chimney adapter and combustion air

supply/connecting air pipe/appliance adaptor design/choice: .................................................. 53

C.4 For terminal design/choice:...................................................................................................................... 54

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Annex D (informative) Example of typical building structure designed to assist exchange of

information ..................................................................................................................................................... 55

Annex E (informative) Location of outlets of chimney systems ................................................................ 60

Annex F (informative) Correlation between the product designation of metal system

chimneys, liners and connecting flue pipes and corrosion loads in Member States

(MS) .................................................................................................................................................................... 64

Annex G (informative) Correlation between type of flue liner according to the designation

of parameters for clay/ceramic flue liners, clay/ceramic flue blocks and concrete

flue blocks blocks and the designation according to EN 1443 ..................................................... 72

Annex H (informative) Example for chimney system plate ........................................................................ 75

H.1 Example of a concentric chimney system configuration plate ..................................................... 75

H.2 Example of a separate chimney system configuration plate......................................................... 76

Annex I (informative) Determination of the chimney system designation for custom-built,

relined and converted chimney systems with concentric air/flue configuration ................ 77

I.1 General ............................................................................................................................................................. 77

I.2 Temperature class ........................................................................................................................................ 78

I.3 Pressure class ................................................................................................................................................ 89

I.4 Condensate resistance class ..................................................................................................................... 89

I.5 Corrosion resistance class ......................................................................................................................... 89

I.6 Sootfire resistance class ............................................................................................................................. 89

I.7 Minimum distance to combustible material ....................................................................................... 90

Annex J (informative) Example of the determination of the designation of a

converted/relined chimney system ....................................................................................................... 91

J.1 Input data for a typical converted/relined chimney system ........................................................ 91

J.1.1.1 Existing chimney that becomes the air supply duct ......................................................................... 91

J.1.1.2 Flue liner .......................................................................................................................................................... 91

J.1.1.3 Insulation ......................................................................................................................................................... 91

J.2 Temperature class designation ............................................................................................................... 92

J.2.1.1 General ............................................................................................................................................................. 92

J.2.1.2 Material characteristic ............................................................................................................................... 92

J.2.1.3 Resistance to fire .......................................................................................................................................... 92

J.2.1.4 Human contact ............................................................................................................................................... 93

J.2.1.5 Determination of temperature class ..................................................................................................... 93

J.2.1.6 Check of mean temperatures ................................................................................................................... 93

J.3 Pressure class ................................................................................................................................................ 94

J.4 Condensate resistance class ..................................................................................................................... 94

J.5 Corrosion resistance class ......................................................................................................................... 94

J.6 Sootfire resistance class ............................................................................................................................. 94

J.7 Minimum distance to combustible material ....................................................................................... 95

J.8 Designation of the converted/relined chimney system ................................................................. 95

J.9 Chimney plate of the converted/relined chimney system in this example ............................. 95

Annex K (informative) Example for the determination of the designation of a custom-built

chimney system ............................................................................................................................................. 96

K.1 Input data for a custom-built chimney system .................................................................................. 96

K.1.1.1 Flue liner .......................................................................................................................................................... 96

K.1.1.2 Insulation ......................................................................................................................................................... 96

K.1.1.3 Air supply duct ............................................................................................................................................... 96

K.1.1.4 Combustible wall .......................................................................................................................................... 96

K.2 Temperature class ........................................................................................................................................ 97

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prEN 15287-2:2021 (E)

K.2.1.1 General.............................................................................................................................................................. 97

K.2.1.2 Material characteristic ................................................................................................................................ 97

K.2.1.3 Resistance to fire ........................................................................................................................................... 97

K.2.1.4 Human contact ............................................................................................................................................... 98

K.2.1.5 Determination of temperature class ...................................................................................................... 98

K.2.1.6 Check of the temperatures at the outer surfaces of the flue duct and the air supply

duct .................................................................................................................................................................... 99

K.3 Pressure class ................................................................................................................................................. 99

K.4 Condensate resistance class ...................................................................................................................... 99

K.5 Corrosion resistance class ......................................................................................................................... 99

K.6 Sootfire resistance class ............................................................................................................................. 99

K.7 Minimum distance to combustible material .................................................................................... 100

K.8 Designation of the custom-built chimney system .......................................................................... 100

K.9 Chimney plate for the custom-built chimney system in this example .................................... 100

Annex L (informative) Minimum distances to combustible material .................................................. 101

Annex M (informative) Calculating the temperature of adjacent materials ..................................... 104

M.1 Method for the calculation of the temperature of adjacent materials (e.g.

weatherproofing) ....................................................................................................................................... 104

M.2 Example for calculation of the temperature of adjacent materials (e.g.

weatherproofing) ....................................................................................................................................... 106

Annex N (informative) Useful hints for handling of materials and components on site ............... 107

N.1 General........................................................................................................................................................... 107

N.2 Check of existing chimney ...................................................................................................................... 107

N.3 Checking before installation .................................................................................................................. 107

N.4 Checking on delivery of materials ....................................................................................................... 107

N.5 Site handling and storage........................................................................................................................ 107

N.6 Coordination of work ............................................................................................................................... 108

Annex O (informative) Chimney system commissioning .......................................................................... 109

O.3.2.1 Flue flow test for gas ................................................................................................................................. 110

O.3.2.2 Flue flow test for oil .................................................................................................................................. 110

O.3.2.3 Flue flow test for solid fuel ..................................................................................................................... 111

O.3.2.4 Pressure test for non-concentric positive pressure chimneys systems................................. 111

O.3.2.5 O measurement for concentric positive pressure chimney systems ..................................... 112

Annex P (informative) Recommendations for inspection, cleaning and maintenance ................. 114

Annex Q (informative) Flue damper ................................................................................................................ 115

Q.1 General........................................................................................................................................................... 115

Q.2 Flue damper types ..................................................................................................................................... 116

Q.2.1.1 Type 1 ............................................................................................................................................................. 116

Q.2.1.2 Type 2 ............................................................................................................................................................. 117

Q.2.1.3 Type 3 ............................................................................................................................................................. 117

Q.2.1.4 Type 4 ............................................................................................................................................................. 117

Q.2.1.5 Type 5 ............................................................................................................................................................. 118

Q.3 Additional information for the use of a flue damper type 2 and 4 ........................................... 118

Q.3.1.1 Boilers with forced draught burners .................................................................................................. 118

Q.3.1.2 Boilers with burners with fan without air purging ....................................................................... 119

Q.3.1.3 Boilers with burners with fan with post-purge period ................................................................ 119

Q.3.1.4 Gas boilers with burners without fan ................................................................................................. 119

Q.3.1.5 Closing time of the flue damper flap ................................................................................................... 119

Q.3.1.6 Malfunction of the flue damper ............................................................................................................ 119

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prEN 15287-2:2021 (E)

Annex R (informative) Terminals ..................................................................................................................... 120

Bibliography .............................................................................................................................................................. 122

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oSIST prEN 15287-2:2021
prEN 15287-2:2021 (E)
European foreword

This document (prEN 15287-2:2021) has been prepared by Technical Committee CEN/TC 166

“Chimneys”, the secretariat of which is held by ASI.
This document is currently submitted to the CEN Enquiry.
This document will supersede EN 15287-2:2008.

This European Standard is part of the series of standards Chimneys — Design, installation and commissioning:

— Part 1: Chimneys and connecting flue pipes for non-room sealed combustion appliances.

— Part 2: Chimneys and connecting flue pipes for room sealed and connecting flue pipes appliances.

Currently the standard series EN 1856, Chimneys — Requirements for metal chimneys, is also under

revision and if accepted, modifications to the normative text will be have to be made regarding metal

chimneys.

In comparison with the previous edition, the following technical modifications have been made:

a) restructuring of the chapters and annexes;
b) harmonization of the text with part 1;
c) updating the content according to EN 1443:2019;
d) adoption of all relevant terms from EN 1443:2019 and prEN 15287-1;
e) adoption of all relevant chapters and annexes from prEN 15287-1;

f) description of the designation and classes of a chimney according to EN 1443:2019;

g) expanding the specifications for accessories;
h) schematic illustrations of examples of installation configurations;
i) recommendations for some minimum distances from combustible material given;

j) scope was extended to include positive pressure chimneys of pressure class “H” and multiserved

chimneys of the pressure class “P”.
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oSIST prEN 15287-2:2021
prEN 15287-2:2021 (E)
Introduction

CEN/TC 166 started with its programme on standardization of chimneys approximately 30 years ago,

with standards for interfaces, for products, for tests and last but not least for design, installation,

construction and commissioning matters.

In the last years, first priority in the work program was given to product and test standards.

In the meantime most of the product and test standards were published or are nearly ready for

publication. In order to introduce the products in a simple way on the markets of the different Member

States, some common rules for design, installation, and commissioning especially with reference to the

designation of a chimney were considered helpful.

Initially, CEN/TC 166/SC 2 started the work on execution standards for metal chimneys, the first

standard already been published as EN 12391-1 in 2003.

In order not to repeat this work in all material orientated WGs and SCs, CEN/TC 166 decided in 2002 to

give the task to WG 1 to develop a material independent design, installation and commissioning

standard.

CEN/TC 166/WG 1 started the work in 2003 and decided first to draft two documents, one for

chimneys connected to non-room sealed combustion appliances and one for chimneys connected to

room sealed combustion appliances.
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oSIST prEN 15287-2:2021
prEN 15287-2:2021 (E)
1 Scope

This document describes the method of specifying the design, installation and labelling criteria for

chimney systems, construction of custom-built chimneys, the relining or converting of existing

chimneys, connecting flue pipes and air supply pipes for room sealed applications. It also gives

information on commissioning of an installed chimney.

This document applies to chimneys which are subject to the following limiting conditions (specified in

EN 13084-1):

― the horizontal distance between the building and the outer wall of the chimney system not to

exceed 1 m,
― the distance between the supports not to exceed 4 m,
― the distance above the last structural attachment not to exceed 3 m.
This document does not cover:

― chimneys which serve a mixture of fan assisted or forced draught burners or natural draught

appliances,
― installations having a configuration of the type C .
NOTE Room sealed gas appliances are classified as type C according to EN 1749.

The methods in this part of this document are applicable to chimneys and connecting flue pipes for

room sealed combustion appliances. The methods in Part 1 of this document are applicable to chimneys

and connecting flue pipes for non-room sealed combustion appliances.

For the purpose of this document European Standard the term "installation" includes construction.

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 1443: 2019, Chimneys – General requirements

EN 1457-1, Chimneys — Clay/ceramic flue liners — Part 1: Flue liners operating under dry conditions –

Requirements and test methods

EN 1457-2, Chimneys — Clay/ceramic flue liners — Part 2: Flue liners operating under wet conditions –

Requirements and test methods
EN 1806, Chimneys — Clay/c
...

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