1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULApril 15, 20051SUBJECT 2506OUTLINE OF INVESTIGATIONFORRefractory Panels For Masonry FireplacesIssue No: 1April 15, 2005Summary of TopicsThis is the first issue of the Outline of Investigation for
2、 Refractory PanelsFor Masonry Fireplaces, Subject 2506, which covers refractory panelsused within the firebox of masonry fireplaces to replace existing panels,to reduce the firebox size or to allow for reduced clearance tocombustible construction.COPYRIGHT 2005 UNDERWRITERS LABORATORIES INC.UL COPYR
3、IGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULAPRIL 15, 2005SUBJECT 25062No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULCONTENTSINTRODUCTION1 Scope .42 Components 43 Units
4、 of Measurement .44 Undated References 55 Glossary .5CONSTRUCTION6 Materials .5PERFORMANCE7 General 58 Test Installation .69 Temperature Measurement .710 Brand Fire Test 711 Flash Fire Test 712 Fire Chamber Strength Test .7MARKING13 General .7INSTALLATION AND MAINTENANCE INSTRUCTIONS14 General .815
5、Installation Instructions .816 Maintenance Instructions .9APRIL 15, 2005 SUBJECT 2506 3UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULINTRODUCTION1 Scope1.1 These requirements cover refractory panels used within the firebox of masonry firepla
6、ces to replaceexisting panels, to reduce the firebox size or to allow for reduced clearance to combustible construction.1.2 The panels shall be installed within masonry fireplaces which are constructed in accordance with theStandard for Chimneys, Fireplaces, Vents, and Solid Fuel-Burning Appliances,
7、 NFPA 211 and theInternational Residential Code, IRC.2 Components2.1 Except as indicated in 2.2, a component of a product covered by this outline shall comply with therequirements for that component.2.2 A component need not comply with a specific requirement that:a) Involves a feature or characteris
8、tic not needed in the application of the component in thevalue covered by this outline, orb) Is superseded by a requirement in this outline.2.3 A component shall be used in accordance with its rating established for the intended conditions ofuse.2.4 Specific components are incomplete in construction
9、 features or restricted in performance capabilities.Such components are intended for use only under limited conditions, such as certain temperatures notexceeding specified limits, and shall be used only under those specific conditions.3 Units of Measurement3.1 Values stated without parentheses are t
10、he requirement. Values in parentheses are explanatory orapproximate information.APRIL 15, 2005SUBJECT 25064UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM UL4 Undated References4.1 Any undated reference to code or standard appearing in the requi
11、rements of this outline shall beinterpreted as referring to the latest edition of that code or standard.5 Glossary5.1 For the purpose of this Outline, the following definitions apply.5.2 CERTIFIED CHIMNEY SWEEP A chimney sweep certified by a nationally endorsed chimneysweep organization.5.3 MASONRY
12、CHIMNEY A field constructed chimney of solid masonry units, bricks, stones, orreinforced - portland-cement concrete, which may or may not be lined with chimney flue liners built inaccordance with applicable building code requirements.5.4 MASONRY FIREPLACE A field-constructed assembly constructed in
13、accordance with theStandard for Chimneys, Fireplaces, Vents, and Solid Fuel Burning Appliances, NFPA 211, and inaccordance with codes such as the International Residential Code and the Uniform Mechanical Code.5.5 QUALIFIED PERSON A trained installer who has successfully completed a thorough, company
14、-sponsored training course and who is familiar with the use of the product and the risks associated withimproper installation procedures.5.6 REFRACTORY PANEL A noncombustible material used in the construction of the fireplace to linethe firebox.CONSTRUCTION6 Materials6.1 Parts used as refractory pan
15、els shall be of noncombustible material.PERFORMANCE7 General7.1 After being subjected to the tests specified in Sections 10 12, as applicable, the refractory panelsshall be capable of being further used. The panels shall be free of cracks, distortion, or other damage.The panels are to be visually in
16、spected to determine that damage has not occurred.7.2 Test results indicating compliance with the requirements in 7.1 include the following:a) No part of the product has become damaged or permanently distorted to an extent that thepanel will not continue to function as intended; andb) A refractory p
17、anel material has not cracked in a manner allowing portions of the panel tobecome dislodged by poking the panel with a sharp instrument.APRIL 15, 2005 SUBJECT 2506 5UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM UL7.3 A refractory panel shall c
18、omply with the following:a) The thermal conductivity of the refractory panel shall not be increased; andb) The refractory panel material shall not show evidence of softening, melting, disintegrating,losing binder, or other malfunction or deterioration.8 Test Installation8.1 The following factors are
19、 to form the basis of the performance tests of a product:a) Size and type of refractory panel;b) Type of panel construction and material; andc) Samples of refractory panels shall be representative of the material manufacturers curingand mixing specifications and thickness.8.2 Refractory panels are t
20、o be tested with representative samples of the materials used in production.For these purposes, the particle size, densities, mixing proportions of the ingredients, and chemical andphysical properties of the ingredients are to be verified prior to installation of the refractory panels into thefirepl
21、ace.8.3 A refractory panel incorporating water in a cementitious mixture is to be cured for not less than 20days (or manufacturers recommended curing time) after installation, prior to conducting the temperaturetests. If a specific curing method is specified by the manufacturer, this is to be follow
22、ed as far as it ispractical.8.4 The test fireplace and chimney shall be constructed in accordance with the Test Installation Sectionof the Standard for Fireplace Accessories, UL 907. Construction and masonry units of the test fireplacefirebox area are to be according to the minimum requirements spec
23、ified by the refractory panelmanufacturer. See 15.1(f).8.5 The test structure is to be erected within a room having ventilation capable of maintaining the buildupof carbon monoxide to less than 50 parts per million throughout the period of any tests. The room is to befree of extraneous drafts and th
24、e chimney and liner are to exhaust into the same space or into a spacefreely communicating with the space from which the combustion air is taken. The room is to be such thatduring any one test the room temperature does not increase by more than 20F (11C) above the roomtemperature recorded at the beg
25、inning of the test.8.6 The fireplace enclosure is to be constructed according to the requirements of the Test InstallationSection of the Standard for Fireplace Accessories, UL 907 at the minimum clearances specified by themanufacturer of the refractory panels. The specified minimum clearance shall n
26、ot be greater than requiredin NFPA 211, IRC and UMC.APRIL 15, 2005SUBJECT 25066UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM UL9 Temperature Measurement9.1 Refer to the Temperature Measurement Section of the Standard for Fireplace Accessories,
27、 UL 907for temperature measurement.10 Brand Fire Test10.1 Refer to the Brand Fire Test Section of the Standard for Fireplace Accessories, UL 907 for specificdetails on test method and operation.11 Flash Fire Test11.1 Refer to the Flash Fire Test Section of the Standard for Fireplace Accessories, UL
28、907 for specificdetails on test method and operation.12 Fire Chamber Strength Test12.1 Refer to the Fire Chamber Strength Test Section of the Standard for Factory-Built Fireplaces, UL127 for specific details on test method and operation.MARKING13 General13.1 Each refractory panel sample, shall be ma
29、rked with the following:a) Manufacturers or private labelers name or identifying symbol;b) Distinctive part or model designation;c) Install and Use Only in Accordance With Installation and Maintenance Instructions, orequivalent; andd) Date of manufacture (or lot number, if the date of manufacture ca
30、n be traced from thisnumber).13.2 When a manufacturer produces fireplace panel system parts at more than one factory, eachindividual part shall have a distinctive marking to identify it as the product of a particular factory.APRIL 15, 2005 SUBJECT 2506 7UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FUR
31、THER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULINSTALLATION AND MAINTENANCE INSTRUCTIONS14 General14.1 Installation and maintenance instructions shall be provided, either combined in a single manual oras separate manuals, and shall be packed in or with the package containing each refract
32、ory panel.14.2 The installation and maintenance instructions shall be illustrated and include directions andinformation necessary to complete the intended installation and maintenance of the refractory panels.15 Installation Instructions15.1 The installation instructions or training manual shall inc
33、lude particular details concerning:a) The manufacturers or private labelers name, address, and catalog designation or equivalenttrade designation of the fireplace panel system and all parts or materials necessary for itsinstallation.b) The material or parts required and the step-by-step process for
34、installing the refractorypanels.c) A warning against the use of materials other than as specified in the manufacturersinstructions.d) The following or an equivalent statement: Contact Local Building or Fire Officials AboutRestrictions and Installation Inspection in Your Area.e) Minimum clearance to
35、combustible construction adjacent to the firebox area.f) A statement specifying that, prior to installation of the refractory panels into a masonryfireplace firebox, the firebox be thoroughly cleaned (with specific reference to the requirement ofremoving tar glaze creosote) and checked for cracked,
36、loose, or missing bricks, mortar, or othermaterials that could inhibit correct installation of the refractory panels.g) Minimum material and thickness requirements of the outer fireplace shell in the firebox area.The minimum requirements specified shall not be less than required for outside structur
37、alsupport as indicated in the Standard for Chimneys, Fireplaces, Vents, and Solid Fuel-BurningAppliances, NFPA 211; the International Residential Code, IRC; and the Uniform MechanicalCode, UMC.h) A statement indicating the fireplace panels are not intended to support the weight of thefireplace, chim
38、ney or chimney liner.APRIL 15, 2005SUBJECT 25068UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM UL16 Maintenance Instructions16.1 The maintenance instructions shall include particular details concerning:a) The manufacturers or private labelers n
39、ame, address, and catalog designation or equivalenttrade designation of the refractory panel parts and all replaceable parts.b) Recommendations to have the refractory panel installation checked by an authorizedrepresentative of the company, or by some other qualified person, such as a certified chim
40、neysweep, at least once annually following initial installation.c) A warning against using any parts or materials other than those specified.APRIL 15, 2005 SUBJECT 2506 9UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULAPRIL 15, 2005SUBJECT 250610No Text on This Page
