1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULUNDERWRITERS LABORATORIES INC. CERTIFICATION REQUIREMENT DECISIONThis Certification Requirement Decision is prepared and published by Underwriters Laboratories Inc.(UL). It is normative for the a
2、pplicable UL Product Certification Program(s); however, it is currently notpart of the UL Standard(s) referenced below.Product Category (CCN): DDCYStandard Number: UL 103Edition Date: October 15, 2010Edition Number: 11Section / Paragraph Reference: Supplement SASubject: REQUIREMENTS FOR CHIMNEY CONN
3、ECTORS FOR SOLID FUEL FIREDROOM HEATERS AND FIREPLACE STOVESDECISION:5.1.1 CLEARANCE The distance between a wall pass-through assembly, chimney connector, and othersurfaces.5.2.1 FLUE LINER The flue gas conveying component of a venting system.SUPPLEMENT SA CHIMNEY CONNECTORS FOR SOLID FUEL FIRED ROO
4、M HEATERS ANDFIREPLACE STOVESSA1 SCOPESA1.1 These requirements apply to single walled and double walled factory-built chimney connectors.These assemblies do not require field fabrication. They are for use with solid-fuel-fired residentialappliances where the flue-gas temperatures do not normally exc
5、eed 1000F. Factory-built chimneyconnectors are intended for use inside buildings to form a connection from an appliance to a factory-builtchimney suitable for use with solid fuel. These Factory-built chimney connectors are intended forinstallation in accordance with the Standard for Chimneys, Firepl
6、aces, Vents, and Solid-Fuel BurningAppliances, NFPA 211, and in accordance with codes such as the International Mechanical Code, theInternational Residential Code, and the Uniform Mechanical Code.SA1.2 Factory-built chimney connectors are intended to be installed at the manufacturers recommendedclea
7、rance to combustible construction or a minimum clearance of 18 in. (46 cm) to combustibleconstruction and fabricated at the minimum material thickness for steel as required by the Standard forChimneys, Fireplaces, Vents, and Solid-Fuel Burning Appliances, NFPA 211 and as described herein.SA1.3 These
8、 requirements supplement those specified in the Standard for Factory-Built Chimneys forResidential Type and Building Heating Appliances, UL 103, and are not to supersede the requirements ofUL 103. (i.e. UL 103 takes precedence over this Supplement) with the following exceptions:a) The table shown in
9、 SA3.1.2 applies to chimney connectors, in lieu of the requirements inTable 6.1 “Minimum thickness of chimney material” of UL 103.b) The Markings and Instructions requirements shown in SA5 and SA6, respectively, apply tochimney connectors in lieu of the Markings and Instructions requirements of UL 1
10、03.SA2 GLOSSARYUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULSA2.1 CHIMNEY CONNECTOR A pipe assembly that connects a fuel burning appliance to a chimneyfor the purpose of carrying gaseous products of combustion from the appliance to the chim
11、ney.SA3 CONSTRUCTIONSA3.1 MATERIALSSA3.1.1 A chimney connector shall be made of noncombustible corrosion-resistant materials, such as thematerials shown in Table 6.1 of UL 103.SA3.1.2 For a chimney connector intended for a minimum clearance to combustible construction less than18 in. (46 cm), the sh
12、eet metal employed shall comply with the applicable requirements of Section 6 ofUL 103.SA3.1.3 For a chimney connector intended for a minimum 18 in. (46 cm) clearance to combustibleconstruction, the thickness of sheet metal employed for the flue gas conduit shall be not less than thatindicated as fo
13、llows:a) For a connector diameter less than 6 in. (152 mm); 26 AWG (0.019 in.) (0.48 mm)b) For a connector diameter equal to or greater than 6 in. (152 mm) to less than or equal to 10in. (254 mm); 24 AWG (0.024 in.) (0.61 mm)c) For a connector diameter greater than 10 in. (254 mm) to less than or eq
14、ual to 16 in. (406mm); 22 AWG (0.029 in.) (0.74 mm)d) For connector diameters greater than 16 in. (406 mm); 16 AWG (0.056 in.) (1.42 mm)SA4 PERFORMANCESA4.1 GENERALSA4.1.1 When a chimney connector is tested in accordance with these requirements, no part shall attaina temperature sufficient to damage
15、 required corrosion protection, nor cause creeping, distortion, orsagging, damage; resistance to damage by handling shall be demonstrated.SA4.1.2 The size and type of chimney connect shall form the basis of the performance tests.SA4.1.3 A chimney connector that is intended for a minimum 18 in. (46 c
16、m) clearance to combustibleconstruction shall comply with the following tests of UL 103:a) Strength Tests, General, Section 27.1b) Strength Tests, Impact, Section 27.2c) Strength Tests, Longitudinal Force, Section 27.3d) Strength Tests, Chimney Joint Torsion, Section 27.6SA4.1.4 A chimney connector
17、that is intended for a minimum clearance to combustible construction lessthan 18 in. (46 cm) shall comply with the following tests of UL 103:a) Thermal Shock Tests, Section 19STANDARD NUMBER: UL 103 -2-UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION
18、FROM ULb) 1000 Deg. F Flue Gas Temperature Test, Section 20c) 1400 Deg. F Flue Gas Temperature Test, Section 21d) 2100 Deg. F Flue Gas Temperature Test, Section 23e) Strength Tests, General, Section 27.1f) Strength Tests, Impact, Section 27.2g) Strength Tests, Longitudinal Force, Section 27.3h) Stre
19、ngth Tests, Chimney Joint Torsion, Section 27.6SA4.2 Chimney connector installationSA4.2.1 A chimney connector as described by SA4.1.4 shall be tested as illustrated in Figure SA4.1.This is generated text for figtxt.MARKINGSSA5 MARKINGSA5.1 Each individual chimney connector assembly or part, shall b
20、e permanently marked with thefollowing:Figure SA4.1STANDARD NUMBER: UL 103 -3-UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULa) Manufacturers or private labelers name or identifying symbol;b) Distinctive part or model designation; andc) Insta
21、ll and Use Only in Accordance With(a)Installation and Maintenance Instructions, orequivalent.SA5.2 The exterior surface of each chimney connector pipe section, tee, or elbow shall be permanentlymarked with the statement MINIMUM CLEARANCE (*) INCH AIR SPACE TO COMBUSTIBLEMATERIALS AND BUILDING INSULA
22、TION, or equivalent. This and other required marking informationshall appear at least once on each chimney section and shall be repeated at 5 foot (1.5 m) intervals onsections longer than 5 feet.(*) Manufactures specified minimum clearance.SA5.3 The exterior of each chimney connector part shall be p
23、ermanently marked with the statementCAUTION: Do not enclose. This chimney connector must not pass through floors or ceilings”.SA5.4 Each chimney pipe section shall be marked with an arrow, with the word up next to an arrowpointing upward.SA5.5 A marking required to be permanent shall be molded; die-
24、stamped; paint-stenciled, stamped, oretched metal that is permanently secured to the chimney assembly; or indelibly stamped on apressure-sensitive label. Usage, handling and storage of the product are factors in determining thepermanence of the marking. Adhesive attached marking and labeling systems
25、 shall comply with therequirements in the Standard for Marking and Labeling Systems, UL 969.SA5.6 When a manufacturer produces chimney parts at more than one factory, each individual part shallhave a distinctive marking to identify it as the product of a particular factory.INSTRUCTIONSSA6 INSTALLATI
26、ON AND MAINTENANCE INSTRUCTIONSSA6.1 The installation and maintenance instructions shall either be combined in a single manual or beseparate manuals. The following statement, in minimum 1/4 inch (6.4 mm) high bold-face upper-caseletters, shall be included on the cover page of the installation and ma
27、intenance instructions: A MAJORCAUSE OF CHIMNEY RELATED FIRES IS FAILURE TO MAINTAIN REQUIRED CLEARANCES (AIRSPACES) TO COMBUSTIBLE MATERIALS. IT IS OF UTMOST IMPORTANCE THAT THIS CHIMNEYCONNECTOR BE INSTALLED ONLY IN ACCORDANCE WITH THESE INSTRUCTIONS.SA6.2 The instructions shall make reference to
28、the manufacturers or private labelers catalog designationor equivalent for the chimney connector and related parts and shall include the manufacturers or privatelabelers name and address.SA6.3 The installation and maintenance instructions are to be used as a reference during the examinationand tests
29、 of a chimney connector. The instructions are not required to be in final printed form for theinvestigation.SA6.4 Installation instructions shall be illustrated and include directions and information required tocomplete the intended installation of the chimney connector and related parts.SA6.5 The i
30、nstructions shall be illustrated and shall include particular details concerning:STANDARD NUMBER: UL 103 -4-UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULa) The parts required and the step-by-step process for installing the chimney connector
31、,including methods of clearances to wall, floor, and ceiling. Nails, lag bolts, or other fasteningmeans required to secure parts are to be specified;b) Type of heating appliances that are intended to be connected to a residential chimneyconnector;c) Limitations with respect to installation and use,
32、such as maximum height, joining of two ormore parts to constitute the intended assembly, and the required installation clearances (airspaces);d) A warning against the placement of any type of insulation in the required clearance spacessurrounding the chimney connector;e) A warning that the chimney c
33、onnector must not pass through an attic closet, concealedspace, floor, ceiling, or roof;f) The location or guarding of the chimney connector, if passing across an adjacent room, toreduce the possibility of contact;g) The methods and parts to be employed for maintaining ventilation and air circulatio
34、n whererequired;h) A statement specifying that the chimney be sized in accordance with the appliancemanufacturers instructions;i) Reference to the formation and removal of creosote and soot buildup in the chimney asfollows (the inspection frequency once every 2 months stated below is to be a shorter
35、 timeperiod at the manufacturers or private labelers option):Creosote and Soot - Formation and Need for RemovalWhen wood is burned slowly, it produces tar and other organic vapors, which combinewith expelled moisture to form creosote. The creosote vapors condense in the relativelycool chimney flue o
36、f a slow-burning fire. As a result, creosote residue accumulates onthe flue lining. When ignited this creosote makes an extremely hot fire.The chimney should be inspected at least once every 2 months during the heatingseason to determine if a creosote or soot buildup has occurred;If creosote or soot
37、 has accumulated, it should be removed to reduce the risk of chimneyfire.;j) The specified method of chimney cleaning, and the necessity that access be provided for theinspection and cleaning of all sections of the chimney;k) A statement as follows: Contact Local Building or Fire Officials About Res
38、trictions andInstallation Inspection in Your Area.STANDARD NUMBER: UL 103 -5-UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULRATIONALE FOR DECISION:This Certification Requirement Decision documents the applicable requirements for Chimney Conne
39、ctorsused with residential solid fuel-fired room heaters and fireplace stoves, and is reflective of presentpractice. This Decision clarifies the construction, performance, marking and installation instructions forthese components of chimney systems. These products are commonly used as the connection
40、 betweenthe heater and the support base/high temperature chimney system.Copyright 2013 Underwriters Laboratories Inc.UL, in performing its functions in accordance with its objectives, does not guarantee or warrant thecorrectness of Certification Requirement Decisions it may issue or that they will b
41、e recognized or adoptedby anyone. Certification Requirement Decisions are the opinion of Underwriters Laboratories Inc. inpractically applying the requirements of the standard. They do not represent formal interpretations of thestandard under American National Standards Institute (ANSI) processes. U
42、L shall not be responsible toanyone for the use of or reliance upon Certification Requirement Decisions by anyone. UL shall not incurany obligation or liability for damages, including consequential damages, arising out of or in connectionwith the use or reliance upon Certification Requirement Decisions. The electronic version of theCertification Requirement Decision is the current version and previously printed copies may be outdated.This document is published as a service to ULs certification customersSTANDARD NUMBER: UL 103 -6-
