SIST EN 14989-1:2007

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Chimneys - Requirements and test methods for metal chimneys and material independent air supply ducts for roomsealed heating applications - Part 1: Vertical air/flue terminals for C6-type appliancesDWHULDORYConduits de fumée - Exigences et méthodes d'essais pour conduits de fumées métalliques et conduits d'alimentation en air pour tous matériaux pour des appareils de chauffages étanches - Partie 1 : Terminaux verticaux air/fumée pour appareils de type C6Abgasanlagen - Anforderungen und Prüfverfahren für Metall-Abgasanlagen und materialunabhängige Luftleitungen für raumluftunabhängige Anlagen - Teil 1: Senkrecht angeordnete luft/Abgas-Aufsätze für Abgasanlagen mit Gasgeräten des Typs C6Ta slovenski standard je istoveten z:EN 14989-1:2007SIST EN 14989-1:2007en;fr;de91.060.40Dimniki, jaški, kanaliChimneys, shafts, ductsICS:SLOVENSKI
STANDARDSIST EN 14989-1:200701-julij-2007

EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 14989-1February 2007ICS 91.060.40 English VersionChimneys - Requirements and test methods for metal chimneysand material independent air supply ducts for roomsealedheating applications - Part 1: Vertical air/flue terminals for C6-type appliancesConduits de fumée - Exigences et méthodes d'essais pourconduits de fumées métalliques et conduits d'alimentationen air pour tous matériaux pour des appareils dechauffages étanches - Partie 1 : Terminaux verticauxair/fumée pour appareils de type C6Abgasanlagen - Anforderungen und Prüfverfahren fürMetall-Abgasanlagen und materialunabhängigeLuftleitungen für raumluftunabhängige Anlagen - Teil 1:Senkrecht angeordnete luft/Abgas-Aufsätze fürAbgasanlagen mit Gasgeräten des Typs C6This European Standard was approved by CEN on 7 January 2007.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the CEN Management Centre or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as theofficial versions.CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2007 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 14989-1:2007: E

Typical dimensions.47 Annex B (informative)
Sampling for factory production control.51 Annex C (normative)
Choice of size for type test and sampling.53 Annex D (normative)
Factory production control.55 Annex E (normative)
Method of measuring the hot gas temperature.57 Annex ZA (informative)
Clauses of this European Standard addressing the provisions of the EU Construction Products Directive.58 Bibliography.64

EN 1859:2000, Chimneys - Metal chimneys - Test methods EN 10088-1, Stainless steels - Part 1: List of stainless steels EN 14241-1, Chimneys - Elastomeric seals and elastomeric sealants - Material requirements and test methods - Part 1: Seals in flue liners EN 14471, Chimneys - System chimneys with plastic flue liners - Requirements and test methods
3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 1443:2003, EN 1859:2000, EN 1856-1:2003, EN 1856-2:2004 and the following apply. 3.1 air/flue terminal terminal unit consisting of a flue duct, which may be provided with a cover, and an air supply duct for the connection of a roomsealed appliance 3.2 air supply duct independent duct in a building, or a structural part of an air/flue terminal, conveying combustion air to a roomsealed appliance

NOTE The actual test velocity may differ from the nominal velocity, because the actual inside diameter differs from the nominal diameter. 3.9 push-in spigot part of a pipe or fitting which is pushed into the socket of another pipe or fitting, thus resulting in a connection 3.10 re-circulation percentage ratio between the amount of flue gases leaking through the flue opening into the air supply duct opening of the terminal and the total amount of flue gases produced 3.11 room-sealed appliance appliance in which the combustion circuit (air supply, combustion chamber, heat exchanger and evacuation of the products of combustion) is sealed with respect to the room in which the appliance is installed 3.12 separate air/flue configuration configuration in which the air supply duct and the chimney flue are separate (non-concentric) 3.13 socket part of a pipe or fitting which is pushed over the push-in spigot of another pipe or fitting, thus resulting in a connection 3.14 terminal adapter part of the terminal used to connect the terminal to the air supply duct and the flue. It may include the transition from parallel to concentric configuration 3.15 wind pressure angle angle from which the wind (generated in the wind tunnel) hits the air/flue terminal

KmW2⋅ αaB coefficient of heat transfer between the outside of the air supply duct and the ambient air in KmW2⋅ αi coefficient of heat transfer between the air and the inner surface of the flue duct in
KmW2⋅ αiB coefficient of heat transfer between the supply air and the inner surface of the air supply duct in KmW2⋅ ηA dynamic viscosity of air for Tm in 2msN⋅ ηB dynamic viscosity of air for TmB in 2msN⋅ λA thermal conductivity of air for Tm in KmW⋅ λB thermal conductivity of air for TmB in KmW⋅ Λ1 thermal resistance of the flue duct in
WKm2⋅ BΛ1 thermal resistance of the air supply duct in WKm2⋅ ρ density of air at 20 °C = 1,2 in 3mkg ρa density of air in 3mkg ρe density of air for Te in 3mkg ρm density of air for Tm in 3mkg ρmB density of air for TmB in 3mkg ψ coefficient of friction of the flue -
ψB the higher of the value of the coefficient of friction of the inside of the air supply duct and the outside of the flue duct -

ψsmoothB coefficient of friction of the air supply for hydraulically smooth flow -
ζ coefficient of flow resistance, friction factor -
ζA declared coefficient of flow resistance of the air supply duct of the terminal -
ζF declared coefficient of flow resistance of the flue duct of the terminal -
AB cross-sectional area of the air supply passage in m² cp specific heat capacity of air for Tm in KkJ⋅g cpB specific heat capacity of air for TmB in KkJ⋅g d1 external diameter of the push-in spigot of the flue duct in
mm d2 internal diameter of the socket of the flue duct in
mm D1 external diameter of the push-in spigot of the air supply in
mm D2 internal diameter of the duct socket of the air supply duct in
mm Dh hydraulic diameter of the flue in
m Dha hydraulic diameter of the outside of the flue duct in
m DhaB hydraulic diameter of the outside of the air supply duct in m DhB hydraulic diameter of the air supply passage in m DhiB hydraulic diameter of the inside of the air supply duct in m Dn declared nominal diameter of the terminal in mm kb coefficient of heat transmission between the flue and the air supply passage at temperature equilibrium in
KmW2⋅ kBb coefficient of heat transmission between the supply air and the ambient air at temperature equilibrium in KmW2⋅ L length of the test segment in m L0 Available insertion length in
mm Nu Nusselt number for the flue -
Nua Nusselt number for the outside of the flue duct -
NuB Nusselt number for a reference pipe flow -
NuiB Nusselt number for the inside of the air supply duct -
∆p Static pressure difference, measured friction in
Pa PA static pressure above ambient pressure directly downstream of the air supply duct of the terminal in
Pa PF static pressure above ambient pressure directly upstream of the flue duct of the terminal in
Pa PL wind effect pressure in
Pa Pr Prandtl number of the flue duct -
PrB Prandtl number of the supply air duct -
r mean value of roughness of the inner wall of the flue duct in m rB the higher of the value of the mean value of roughness of the inside of the air supply duct and the outside of the flue duct in m

ReB Reynolds number of the air supply passage -
SA cross sectional area of the duct at the measurement position directly downstream of the air supply duct of the terminal in mm2 SF cross sectional area of the duct at the measurement position directly upstream of the flue duct of the terminal in mm2 Srad correction factor for radiation from the outer surface of the flue duct to the inner surface of the air supply duct -
Te air temperature at the flue inlet in °C TeB air temperature at the air supply inlet in °C TmB mean temperature in the air supply in °C To air temperature at the flue outlet in °C ToB air temperature at air supply outlet in °C Tu ambient air temperature
in °C U circumference of the inside of the flue in m Ua circumference of the outside of the flue duct in m UiB circumference of the inside of the air supply duct in m V• test flow rate
in s3m wA velocity at the static pressure measurement position directly downstream of the air supply duct of the terminal, in m/s. in sm wF velocity at the static pressure measurement position directly upstream of the flue duct of the terminal, in m/s. in sm wn velocity of the flow inside the terminal under nominal operating conditions
in sm wmB average velocity of the supply air in sm ww Wind speed in sm x centre to centre distance of the air supply duct and the flue duct for separate air/flue configuration in
mm 5 Manufacturer's declaration for type test The manufacturer shall provide the relevant information from product documentation and instructions and in addition shall declare: a) the manufacturing drawings including declared internal diameter and tolerances of manufacture; b) materials from which the air/flue terminal is made (according to EN 10088-1 and EN 573-3 for metal); c) the minimum thicknesses after manufacture; and d) the nominal diameter (Dn); e) the nominal length (Ln)

When an air/flue terminal is tested according to the test method described in 12.1.4 with a positive pressure of 40 Pa in the air supply duct section, the leakage shall not exceed 0,28 l s-1 m-2 of surface of the air supply duct before and after the thermal performance test. 7.3 Safety in use 7.3.1 Thermal performance 7.3.1.1 Gas tightness The air/flue terminal shall meet the gas tightness requirements of 7.2 before performing the test described in 12.2.4.1 and after performing the test described in 12.2.4.3.

For a concentric terminal having a separate connecting spigot, the manufacturer should give instructions on how the terminal is to be installed regarding the distance to combustible material. 7.3.1.2.2 Temperature cycling test When the air/flue terminal and its components is tested in accordance with 12.2.4.3 no part of the terminal or its components shall show any permanent deformation, blisters or cracks which could affect its performance.
7.3.2 Thermal resistance 7.3.2.1 Air/flue terminal with separate air/flue configuration The thermal resistance value of the air/flue terminal section declared by the manufacturer shall be verified either by testing according to the test method of EN 1859 or by calculation using either the simplified calculation or the finite difference equation of EN 1859:2000 (Annexes F and G). When the value for the thermal resistance is calculated, the thermal conductivity value shall be based on the mean temperature of the insulation depending on the nominal temperature of Table 1. 7.3.2.2 Air/flue terminal with concentric air/flue configuration The thermal resistance value of the air/flue terminal section declared by the manufacturer shall be verified by testing according to 12.2.4.4. 7.3.3 Rainwater ingress 7.3.3.1 Flue When a terminal designated D according to 10.4 is tested for rain ingress according to the test method described in 12.3, the volume of the water collected in the flue shall not exceed 0,05 mm3/s per millimetre of the nominal size. 7.3.3.2 Air supply duct When a terminal is tested for rain ingress according to the test method described in 12.3, the volume of the water collected in the air supply duct shall not exceed 0,05 mm3/s per millimetre of nominal size. 7.3.3.3 Insulation When a section of the air flue terminal containing insulation is tested for rain ingress according to the test method described in 12.3 the increase of mass shall not exceed 1% of the mass of the insulation of the section.

+−≥22A212AaAnawPwρρζ (1) with ζA declared coefficient of flow resistance of the air supply duct of the terminal ρa density of air, in kg/m3 wn velocity of the flow inside the terminal under nominal operating conditions, in m/s PA static pressure above ambient pressure directly downstream of the air supply duct of the terminal, in Pa wA velocity at the static pressure measurement position directly downstream of the air supply duct of the terminal, in m/s 7.3.4.2 Coefficient of flow resistance of the flue duct of the terminal When a terminal is tested according to the test method described in 12.4 under the conditions specified in 12.4.2.2 the declared coefficient of flow resistance of the flue duct ζF shall fulfil the condition: ()22122FaFnaFwPwρρζ+≥ (2) with F
declared coefficient of flow resistance of the flue duct of the terminal a density of air, in kg/m3 wn velocity of the flow inside the terminal under nominal operating conditions, in m/s PF static pressure above ambient pressure directly upstream of the flue duct of the terminal, in PawF velocity at the static pressure measurement position directly upstream of the flue duct of the terminal, in m/s 7.3.4.3 Wind effect on the terminal When a terminal is tested according to the test method described in 12.4 under the conditions specified in 12.4.2.3, the wind effect pressure PL for each condition shall be determined using the following formula ()AFnaAFLwPPPζζρ+−−=221 (3)

a) Windclass A90 b) Windclass A45
Key x angles y recirculation Figure 1 — Graphical representation of recirculation requirement NOTE The rational supporting the performance graph of Figure 1 a) and b) is based on an acceptance that it is the equivalent of a maximum of 10 % recirculation when fitted to a boiler under operating conditions, as required in EN 483. 7.3.5 Resistance to ice formation When an air/flue terminal is declared ice free, when tested in accordance with 12.5 it shall satisfy the following requirements:  the increase in weight of the tested flue terminal shall not exceed 0,5 g for each mm of the nominal diameter of the flue;  the dimension of any ice formation, measured in any direction on or in the terminal, shall not exceed 10 mm. 7.3.6 Resistance to penetration by foreign objects When the air/flue terminal is tested according to 12.6 the opening in the external surface of the terminal shall not permit the entry of a (16 ± 0,1) mm diameter metal ball applied with a force of 5 N ± 0,1 N. 7.3.7 Materials 7.3.7.1 Flue duct and metal air/flue terminal parts in contact with combustion products Flue ducts and metal air/flue terminal parts for vertical air/flue terminals in contact with combustion products shall be in accordance with EN 1856-1.

Plastics and elastomeric components used in the air/flue terminal shall:
a) Not show any deformation, permanent or temporary, when the air/flue terminal is tested in accordance with 12.7, that will affect the performance of the air/flue terminal, and
b) Meet the requirements laid down in EN 14471 and EN 14241-1 when assessed using the test methods described in those standards at the temperatures obtained in 12.2.4.2 7.3.7.4 Freeze thaw resistance Metal terminal products are considered deemed to satisfy freeze thaw resistance. Plastic components satisfying the requirement 7.3.7.3.a), are also considered deemed to satisfy the freeze thaw resistance. 8 Product information 8.1 Manufacturer’s instructions The manufacturer’s instructions shall be available in the language of the country in which the product is placed on the market. 8.2 Minimum information to be included in the manufacturer’s instructions The manufacturer shall include in his documentation and instructions the following minimum information:  manufacturer identification;  product designation (according to 10.1), with explanation, e.g. metal vertical air/flue terminal for use with C62 and C63 gas appliances, and resistance to fire external to external class EI; NOTE 1 Resistance to fire external to external is zero for this product.
NOTE 2 For resistance to fire classification see EN 13501-2.  nominal diameters of the flue duct and air duct;

9 Marking NOTE For CE marking and CE labelling purposes the provisions of ZA.3 apply. 9.1 Air/flue terminal The air/flue terminal shall be marked with the following information: a) product designation in accordance with Clause 10; b) Additional characteristics:  Wind class (see 10.7.1): e.g A90  Ice/rain class (see 10.7.2): e.g. K1.  Pilot flame class (see 10.7.3): e.g. FL1 c) name or trade mark of the manufacturer;

10.1 General An air/flue terminal shall be designated in accordance with the following designation system.

EN XXXX −
T120 − P1 − D − Vm-L40045 − O50
Product description Standard number Temperature class (see 10.2) Pressure class (see 10.3) Condensate resistance class (W: wet or D: dry) (see 10.4) Corrosion resistance class
Flue duct material specification (see 10.5) Sootfire resistance and distance to combustible material (in mm) (see 10.6) 10.2 Temperature classes and test temperature The temperature class for the terminal nominal working temperature and the test temperature for the temperature class are defined in Table 1. Table 1 — Temperature classes and test temperatures Temperature class Nominal working Temperature (T) ºC Flue gas test Temperature (Te) ºC T 080 T 100 T 120 T 140 T 160 T 200 T 250 T 300 T 400 T 450 T 600 ≤ 80 ≤ 100 ≤ 120 ≤ 140 ≤ 160 ≤ 200 ≤ 250 ≤ 300 ≤ 400 ≤ 450 ≤ 600 100 120 150 170 190 250 300 350 500 550 700
10.3 Pressure class Terminals conforming to this standard shall be designated according to only one pressure class P1 (see 7.2.1).

EN AW – 4047A
EN AW – 1200
1.4301
1.4307
1.4401
1.4404a
1.4432
1.4539
To be declared by the manufacturer
EN AW Al Si 12A CU <0,1%, Zn<0,15% (cast aluminium)
EN AW-AL 99,0
X5CrNi 18-10
X2CrNi 18-9
X5CrNiMo 17-12-2
X2CrNiMo 17-12-2
X2CrNiMo 17-12-3
X1NiCrMoCu 25-20-5
To be declared by the manufacturer a Equivalent for material Nº 1.4404 = 1.4571(symbol X6CrNiMoTi 17-12-2)
10.6 Resistance to fire (internal to external): Soot fire resistance and distance to combustible material Terminals according to this standard are designated non-soot fire resistant. The terminal shall be designated O followed by the separation distance to combustible material xx in mm (see 7.3.1.2.1). 10.7 Additional characteristics 10.7.1 Wind class Terminals shall be designated either A90 or A45. 10.7.2 Ice/rain class A terminal shall be designated ice/rain class K according to Table 3.

10.7.3 Pilot flame class Terminals shall be designated either: FL1 – For PF < PA +5 Pa FL2 – For PF < PA NOTE 1 For some boiler and terminal combinations practical experience has shown that after a period of use, when the boiler extinguishes, initially it is possible for counter flow to occur in the ter
...