UL SUBJECT 907A-2007 OUTLINE OF INVESTIGATION FOR FACTORY-BUILT TERMINATION CAPS FOR USE WITH MASONRY CHIMNEYS (Issue 1)《砖石结构烟囱用工厂制端帽调查大纲 发布编号 1》.pdf

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1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULAugust 23, 20071SUBJECT 907AOUTLINE OF INVESTIGATIONFORFACTORY-BUILT TERMINATION CAPS FOR USE WITH MASONRYCHIMNEYSIssue Number: 1AUGUST 23, 2007Summary of TopicsThis is the first issue of the Out

2、line of Investigation for Factory-Built Termination Caps for Use with Masonry ChimneysThe UL Foreword is no longer located within the UL Standard. For informationconcerning the use and application of the requirements contained in thisStandard, the current version of the UL Foreword is located onULSt

3、andardsInfoNet at: http:/ 2007 UNDERWRITERS LABORATORIES INC.UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULAUGUST 23, 2007SUBJECT 907A2No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT

4、 PERMISSION FROM ULCONTENTSINTRODUCTION1 Scope .42 Components 43 Units of Measurement .54 Undated References 55 Glossary .5CONSTRUCTION6 Materials .57 Assembly 5PERFORMANCE8 General 69 Strength Tests 69.1 General .69.2 Crushing and joint load test 79.3 Wind load tests .710 Rain Test .711 Draft Loss

5、Test 7MARKING12 General .8INSTALLATION AND MAINTENANCE INSTRUCTIONS13 General .8PACKING FOR SHIPMENT14 General .9AUGUST 23, 2007 SUBJECT 907A 3UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULINTRODUCTION1 Scope1.1 These requirements cover term

6、ination caps for attachment at the termination of a masonry residentialchimney constructed in accordance with the Standard for Chimneys, Fireplaces, Vents, and SolidFuel-Burning Appliances, NFPA 211 and applicable codes such as the International Residential Code(IRC), International Mechanical Code (

7、IMC), and Uniform Mechanical Code (UMC).1.2 These requirements cover termination caps intended for use with masonry residential chimneysprovided with a clay-flue lining complying to the requirements of Standard Specification for Clay FlueLiners and Chimney Pots, ASTM C 315.1.3 Requirements for termi

8、nation caps intended for use with flue liners are covered by the Standard forChimney Liners, UL 1777.1.4 Requirements for termination caps intended for use with factory-built chimneys are covered by theStandard for Factory-Built Chimneys for Residential Type and Building Heating Appliances, UL 103.1

9、.5 Requirements for termination caps intended for use with factory-built fireplaces are covered by theStandard for Factory-Built Fireplaces, UL 127.1.6 Factory-built termination caps for use with masonry residential chimneys are intended for installationin single cap applications only.1.7 Terminatio

10、n caps covered by these requirements are not intended for use on chimneys with multipleflues or for use with multiple chimneys.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 is not requ

11、ired to comply with a specific requirement that:a) Involves a feature or characteristic not required in the application of the component in theproduct 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

12、for the intended conditions ofuse.2.4 Specific components are incomplete in construction 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 tho

13、se specific conditions.AUGUST 23, 2007SUBJECT 907A4UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM UL3 Units of Measurement3.1 Values stated without parentheses are the requirement. Values in parentheses are explanatory orapproximate information

14、.4 Undated References4.1 Any undated reference to a code or standard appearing in the requirements of this outline shall beinterpreted as referring to the latest edition of that code or standard.5 Glossary5.1 For the purposes of this outline, the following definitions apply.5.2 MASONRY CHIMNEY A fie

15、ld constructed chimney of solid masonry units, bricks, stones, orreinforced portland-cement concrete, lined with a clay-flue lining complying to the requirements ofStandard Specification for Clay Flue Liners and Chimney Pots, ASTM C315.5.3 MASONRY FIREPLACE A field-constructed assembly constructed i

16、n accordance with theStandard for Chimneys, Fireplaces, Vents, and Solid Fuel Burning Appliances, NFPA 211, or inaccordance with the International Residential Code, (IRC)5.4 TERMINATION CAP A protective covering or housing attached to the chimney liner terminusintended for preventing entry of rain,

17、snow and provided with a spark arrester.CONSTRUCTION6 Materials6.1 A factory-built termination cap for use with masonry chimneys shall comply with the “Materials”section of the Standard for Factory-Built Chimneys for Residential Type and Building Heating Appliances,UL 103.7 Assembly7.1 A factory-bui

18、lt termination cap for use with masonry chimneys shall comply with the “Assembly”Section of the Standard for Factory-Built Chimneys for Residential Type and Building Heating Appliances,UL 103.7.2 A factory-built termination cap for use with masonry chimneys shall be completely assembled by themanufa

19、cturer at the factory.Exception: A factory-built termination cap may be packaged in a kit form provided, all required pieces,including fasteners, are packaged in the kit and no fabrication such as cutting, drilling or punching holesis required for assembly.AUGUST 23, 2007 SUBJECT 907A 5UL COPYRIGHTE

20、D MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM UL7.3 A factory-built termination cap for use with masonry chimneys shall comply with the “Joints” sectionof the Standard for Factory-Built Chimneys for Residential Type and Building Heating Appliances, UL 103.

21、7.4 A factory-built termination cap shall be provided with a positive means to limit overlap or engagementto the specified liner sizes. Such means shall be permanently assembled by the manufacturer, shall notbe removable by hand or with simple hand tools and the exception to 7.2 shall not apply.7.5

22、Compliance with 7.4 shall be determined by trial fit to each size and geometric shape of linernecessary and meeting the requirements of Section 9.2, Crushing and Joint Load Test.7.6 A factory-built termination cap for use with masonry chimneys shall comply with the “Rain Caps”section of the Standard

23、 for Factory-Built Chimneys for Residential Type and Building Heating Appliances,UL 103.7.7 A factory-built termination cap for use with masonry chimneys shall be designed to be removable andreplaceable without tools or by the use of common hand tools.7.8 A factory-built termination cap for use with

24、 masonry chimneys shall employ a spark arrester as partof the construction as described by Section 4.6.3, Spark Arresters, of Standard for Chimneys, Fireplaces,Vents, and Solid Fuel Burning Appliances, NFPA 211.Exception: Material requirements shall be in accordance with 6.1.PERFORMANCE8 General8.1

25、The following tests shall be required to investigate factory-built termination caps for use with use withmasonry chimneys.9 Strength Tests9.1 General9.1.1 Strength tests shall be conducted prior to the Rain and Draft Loss Tests, Sections 10 and 11,respectively.9.1.2 The strength tests shall be condu

26、cted on a combination of models and sizes installed on as manyshapes and sizes of chimney liners as necessary to determine compliance with the requirements.9.1.3 For each strength test, the termination cap shall be installed on a flue liner as recommended in theinstructions.9.1.4 At the conclusion o

27、f the strength tests, the cap shall not be damaged to the extent it is unsuitablefor further use, it shall not disengage from or damage the flue liner or collapse to reduce the originalcomputed free area by greater than 10 percent.AUGUST 23, 2007SUBJECT 907A6UL COPYRIGHTED MATERIAL NOT AUTHORIZED FO

28、R FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM UL9.2 Crushing and joint load test9.2.1 The upper surface of the cap shall be subjected to a load of 100 pounds mass (91 kg).9.2.2 The load is to be applied in a downward direction tending to collapse and push the cap further intoor onto

29、the flue liner. The load is to be applied for a minimum of 60 minutes.9.3 Wind load tests9.3.1 The largest projected-surface-area exposed to the wind is to be computed by measuring the areaof the outermost projected-solid-surfaces of the cap in either a horizontal or vertical plane. Note: this willu

30、sually be the area of the top plate.9.3.2 A load equivalent to the product of the projected area, expressed in square feet, multiplied by anassumed wind pressure of 30 pounds per square foot (146 kg/m2) and expressed in pounds-force is to beapplied.9.3.3 The load is to be applied in an upward direct

31、ion tending to pull the cap off of the liner. The load isto be sustained for 60 minutes.9.3.4 The load specified in 9.3.3 shall then be repeated in an upward direction 45 degrees from vertical.9.3.5 The loads specified in 9.3.3 and 9.3.4 are to be uniformly distributed over the largest solid surface

32、area or, if agreeable to all parties involved, applied to the center of the largest solid surface area.10 Rain Test10.1 Refer to Section 30, Rain Test, of the Standard for Factory-Built Chimneys for Residential Type andBuilding Heating Appliances, UL 103 for details.11 Draft Loss Test11.1 A terminat

33、ion cap for a masonry chimney shall not impose a draft loss of more than 0.01 inch (0.25mm) water column as determined in accordance with the test method described in 11.4.11.2 The Draft Loss Test shall be repeated on as many sizes and designs necessary to determinecompliance to 11.1.11.3 When a ter

34、mination cap is intended for use with a range of chimney liner sizes, the Draft Loss Testshall be conducted with a liner representing the largest cross-sectional area specified for use with thespecific size termination cap.11.4 The test chimney and/or clay liner is to be installed and the flue-gas g

35、enerator is to be fired as forthe Temperature Test 1000F (538C) Flue Gases, Section 20, of the Standard for Factory-BuiltChimneys for Residential Type and Building Heating Appliances, UL 103. The draft in the chimney linerat the inlet is to be determined while the cap is in place and also while the

36、cap is removed. The differencebetween these two values shall be not greater than 0.01 inch (0.25 mm) water column.AUGUST 23, 2007 SUBJECT 907A 7UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM UL11.5 The duration of flue-gas generator firing shal

37、l be a minimum of five minutes before measuring andrecording draft.MARKING12 General12.1 Each factory-built termination cap for use with Masonry chimneys shall be permanently marked withthe following:a) Manufacturers or private labelers name or identifying symbol;b) Distinctive part or model designa

38、tion; andc) “Install and Use Only in Accordance With(a)Installation and Maintenance Instructions,” orequivalent.a Manufacturers or private labelers name.12.2 When a manufacturer produces chimney termination caps at more than one factory, each individualpart shall have a distinctive marking to identi

39、fy it as the product of a particular factory.12.3 A marking required to be permanent shall be molded; die-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 produ

40、ct are factors in determining thepermanence of the marking. Adhesive attached marking and labeling systems shall comply with therequirements in the Standard for Marking and Labeling Systems, UL 969.INSTALLATION AND MAINTENANCE INSTRUCTIONS13 General13.1 Installation and maintenance instructions shal

41、l be provided, either combined in a single manual oras separate manuals, and shall be packed in or with each masonry termination cap.13.2 The method of access through the top of the chimney (for example, method of removing the chimneytermination cap).13.3 The installation instructions shall include

42、particular details concerning:a) The manufacturers or private labelers name, address, and catalog designation or equivalenttrade designation of the chimney termination cap and all parts or materials necessary for itsinstallation.b) Specifications contained in the Standard for Chimneys, Fireplaces, V

43、ents and Solid FuelBurning Appliances, NFPA 211, concerning termination of a chimney above a roof, its minimumheight above a roof, its proximity to adjacent walls or buildings, and clearances to combustiblematerials.c) A statement specifying that, prior to installation of the termination cap, the ch

44、imney bethoroughly cleaned and in good repair. The statement shall instruct the installer to repair; anycracked, loose or missing bricks, clay flue-liner sections and splay or crown.AUGUST 23, 2007SUBJECT 907A8UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PER

45、MISSION FROM ULd) The following or an equivalent statement: Contact Local Building or Fire Officials AboutRestrictions and Installation Inspection in Your Area.e) The geometrical shapes and maximum and minimum size of clay liners intended for use witheach termination. If liner size is specified by c

46、ross sectional area, a method for determining thearea of each geometric shape shall be included.f) Method of mounting and connection to a masonry chimney and method of removing andreplacing the termination cap or parts of the cap for chimney inspection and cleaning.13.4 The installation instructions

47、 for factory-built termination cap for use with masonry chimneys shallinclude the statement Caution and the following or equivalent statements:a) This Termination Cap is for use on a masonry chimney with a single clay flue liner only;b) Do not install on Factory-Built Fireplaces or Factory-Built Chi

48、mneys; andc) Do not install on chimneys with more than one flue liner.PACKING FOR SHIPMENT14 General14.1 Each of the smallest unit package or container shall include the information required by 13.3(e).AUGUST 23, 2007 SUBJECT 907A 9UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULAUGUST 23, 2007SUBJECT 907A10No Text on This Page