1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL 1777 Chimney LinersUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM ULUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION O
2、R DISTRIBUTION WITHOUT PERMISSION FROM UL UL Standard for Safety for Chimney Liners, UL 1777 Fifth Edition, Dated October 2, 2015 Summary of Topics This Fifth Edition of the Standard for Chimney Liners, ANSI/UL 1777, has been issued as an Editorial update only. No changes to the requirements have be
3、en made. All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form by any means, electronic, mechanical photocopying, recording, or otherwise without prior permission of UL. UL provides this Standard as is without warranty of any kin
4、d, either expressed or implied, including but not limited to, the implied warranties of merchantability or tness for any purpose. In no event will UL be liable for any special, incidental, consequential, indirect or similar damages, including loss of prots, lost savings, loss of data, or any other d
5、amages arising out of the use of or the inability to use this Standard, even if UL or an authorized UL representative has been advised of the possibility of such damage. In no event shall ULs liability for any damage ever exceed the price paid for this Standard, regardless of the form of the claim.
6、Users of the electronic versions of ULs Standards for Safety agree to defend, indemnify, and hold UL harmless from and against any loss, expense, liability, damage, claim, or judgment (including reasonable attorneys fees) resulting from any error or deviation introduced while purchaser is storing an
7、 electronic Standard on the purchasers computer system. OCTOBER 2, 2015 UL 1777 tr1UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL OCTOBER 2, 2015 UL 1777 tr2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTIO
8、N OR DISTRIBUTION WITHOUT PERMISSION FROM UL OCTOBER 2, 2015 1 UL 1777 Standard for Chimney Liners First Edition March, 1988 Second Edition April, 1995 Third Edition February, 2004 Fourth Edition November, 2007 Fifth Edition October 2, 2015 This ANSI/UL Standard for Safety consists of the Fifth Edit
9、ion. The most recent designation of ANSI/UL 1777 as a Reaffirmed American National Standard (ANS) occurred on April 15, 2014. ANSI approval for a standard does not include the Cover Page, Transmittal Pages and Title Page. Comments or proposals for revisions on any part of the Standard may be submitt
10、ed to UL at any time. Proposals should be submitted via a Proposal Request in ULs On-Line Collaborative Standards Development System (CSDS) at http:/. ULs Standards for Safety are copyrighted by UL. Neither a printed nor electronic copy of a Standard should be altered in any way. All of ULs Standard
11、s and all copyrights, ownerships, and rights regarding those Standards shall remain the sole and exclusive property of UL. COPYRIGHT 2015 UNDERWRITERS LABORATORIES INC. ANSI/UL 1777-2009 (R2014)UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL
12、 OCTOBER 2, 2015 CHIMNEY LINERS - UL 1777 2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL CONTENTS INTRODUCTION 1 Scope .5 2 Units of Measurement .5 3 Glossary .5 4 Components 6 5 Undated References 7 CONSTRUCTION 6 Mat
13、erials .7 7 Assembly 9 8 Chimney Caps .11 9 Chimney Top Covers .11 10 Joints .11 11 Wall Penetration Assemblies .12 12 Radiation Shields .13 13 Tee Sections and Support Assemblies for Metallic Chimney Liners .14 PERFORMANCE 14 General 14 15 Test Installation .15 16 Temperature Measurement 23 17 Temp
14、erature Test for Solid-Fuel-Fired Appliances 1000F (538C) Flue Gases .29 18 Temperature Test for Solid-Fuel-Fired Appliances 1400F (760C) Flue Gases .30 19 Temperature Test for Solid-Fuel-Fired Appliances 2100F (1149C) Flue Gases 30 20 Temperature Test for Oil-Fired Appliances 570F (299C) Flue Gases
15、 31 21 Temperature Test for Oil-Fired Appliances 1700F (927C) Flue Gases .31 22 Temperature Test for Category I Gas-Fired Appliances 470F (243C) Flue Gases .32 23 Loading Test for Metallic Chimney Liners 32 24 Vertical Support Test for Metallic Chimney Liners .33 25 Strength Test for Metallic Chimne
16、y Liners .35 26 Strength Test for Nonmetallic Chimney Liners 37 27 Sweep Test 38 28 Abrasion Test 38 29 Flexibility Test for Flexible Metal Liners 39 30 Torsion Test for Flexible Metal Liners .40 31 Corrosion Resistance Test .40 32 Comparative Corrosion Exposure Test for Aluminum Liners 41 33 Compar
17、ative Corrosion Exposure Test for Stainless Steel Liners .42 34 Resistance to Action of Acids Test for Nonmetallic Flue-Gas Conduit .43 35 Freezing and Thawing Test for Water-Absorptive Nonmetallic Materials .43 36 Rain Test 44 37 Draft Loss and Wind Effects Test .47 38 Puncture Test for Flexible Al
18、uminum Metal Liners 49 MARKINGS 39 General 51 OCTOBER 2, 2015 CHIMNEY LINERS - UL 1777 3UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL INSTRUCTIONS 40 General 52 41 Installation Instructions 53 42 Maintenance Instructions 54 OCTOBER 2, 2015
19、 CHIMNEY LINERS - UL 1777 4UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL INTRODUCTION 1 Scope 1.1 These requirements cover metallic and nonmetallic chimney liners intended for eld-installation into new or existing masonry chimneys that are
20、 used for the natural draft venting of Category I gas-red, Type L vented oil-red, and solid-fuel-red residential-type appliances in which the maximum continuous ue-gas outlet temperatures do not exceed 1000F (538C). 1.2 Chimney liners are intended to be installed in existing masonry chimneys with or
21、 without a liner of re-clay tile, or to be used as a substitute for masonry re-clay tile ue liners in new chimneys. 1.3 Chimney liners are intended to be installed in accordance with the Standard for Chimneys, Fireplaces, Vents, and Solid Fuel Burning Appliances, NFPA 211; National Fuel Gas Code, NF
22、PA 54 and codes such as the International Building Code, International Gas Code, International Mechanical Code, International Residential Code, and the Uniform Mechanical Code. 1.4 Chimney liners as covered by these requirements are not intended for use with Category II, III, or IV gas burning appli
23、ances as dened by the National Fuel Gas Code, NFPA 54, or other appliances that result in condensation of corrosive acids on the liner of the chimney, or that create positive pressures in the chimney system. 1.5 Chimney liners with cementitious or refractory ue gas conveying conduits shall be evalua
24、ted and marked in accordance with the solid-fuel-red-appliance sections of these requirements. 2 Units of Measurement 2.1 Values stated without parentheses are the requirement. Values in parentheses are explanatory or approximate information. 3 Glossary 3.1 For the purpose of this standard, the foll
25、owing denitions apply. 3.2 APPLIANCE, HEATING A chimney-connected, fuel-burning device. 3.3 CATEGORY I GAS-FIRED APPLIANCE A gas appliance that operates with a non-positive vent static pressure and with a vent gas temperature that avoids excessive condensate production in the vent. 3.4 CERTIFIED CHI
26、MNEY SWEEP A chimney sweep certied by a nationally endorsed chimney sweep organization. 3.5 CHIMNEY CONNECTOR The ue pipe that connects a fuel-burning appliance to a chimney. 3.6 CHIMNEY, MASONRY A eld constructed chimney of solid masonry units, bricks, stones, or reinforced-portland-cement concrete
27、, lined with chimney ue liners built in accordance with applicable building code requirements. 3.7 CHIMNEY, TEST An assembly used to investigate chimney liners consisting of a single thickness of brick or other equivalent minimum construction, as specied in this standard. OCTOBER 2, 2015 CHIMNEY LIN
28、ERS - UL 1777 5UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 3.8 DAMPER, FIREPLACE A plate located at the top of a masonry replace, used to stop the ow of air or restrict the ow of ue-gas air mixtures from inside the structure in which the
29、 replace is located to the outside. 3.9 DIRECT CONNECTION SYSTEM A means to route combustion products from the outlet of an appliance through the damper area and to the chimney liner. 3.10 FIREPLACE, MASONRY A eld-constructed assembly constructed in accordance with the Standard for Chimneys, Firepla
30、ces, Vents, and Solid Fuel Burning Appliances, NFPA 211; National Fuel Gas Code, NFPA 54 and codes such as the International Building Code, International Gas Code, International Mechanical Code, International Residential Code, and the Uniform Mechanical Code. 3.11 LINER, CHIMNEY A system to be used
31、in conjunction with a chimney that is constructed from metallic or nonmetallic materials that are factory made or mixed, and that is assembled in the eld to form a complete, functional means for conveying products of combustion to the outside. 3.12 NATURAL DRAFT The draft created by an appliance tha
32、t operates at neutral or negative pressure, as measured at the outlet of the appliance. 3.13 PRODUCT The term product as used in these requirements refers to all chimney liners or any part thereof covered by these requirements, such as a wall penetration assembly, unless specically noted otherwise.
33、3.14 QUALIFIED PERSON A trained installer who has successfully completed a thorough, company- sponsored training course and who is familiar with the use of the product and the risks associated with improper installation procedures. 3.15 WALL PENETRATION ASSEMBLY A device used to provide a means for
34、routing a chimney connector through a combustible wall to a masonry chimney. 4 Components 4.1 Except as indicated in 4.2, a component of a product covered by this standard shall comply with the requirements for that component. 4.2 A component is not required to comply with a specic requirement that:
35、 a) Involves a feature or characteristic not required in the application of the component in the product covered by this standard, or b) Is superseded by a requirement in this standard. 4.3 A component shall be used in accordance with its rating established for the intended conditions of use. 4.4 Sp
36、ecic 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 not exceeding specied limits, and shall be used only under those specic conditions. OCTOBER 2, 2015 CHIM
37、NEY LINERS - UL 1777 6UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 5 Undated References 5.1 Any undated reference to a code or standard appearing in the requirements of this standard shall be interpreted as referring to the latest edition
38、 of that code or standard. CONSTRUCTION 6 Materials 6.1 Parts used in a chimney lining system shall be of noncombustible, corrosion-resistant materials. Metals shall not be used in combinations at any location within the assembly that results in galvanic action. 6.2 The minimum thickness of material
39、s, including any coatings, shall be as specied in Table 6.1. Exception No. 1: The minimum thickness of materials employed as a protective covering over insulation, not subject to contact with ue gases, is not required to be as specied in Table 6.1. See Abrasion Test, Section 28. Exception No. 2: The
40、 minimum thickness of materials determined to comply with the Comparative Corrosion Exposure Test For Aluminum Liners, Section 32, or the Comparative Corrosion Exposure Test For Stainless Steel Liners, Section 33, is not required to be as specied in Table 6.1. Table 6.1 Thickness of materials Minimu
41、m thickness Description Inch (mm) Aluminum alloys (1100, 3003) 0.012 (0.30) Aluminum-coated steel, Type T1-40 (regular 0.40 ounces per square foot (0.12 kg/m 2 ) 0.018 (0.46) Cast iron 0.125 (3.17) Galvanized steel (G90 Coating designation) 0.018 (0.46) Porcelain-enameled steel 0.032 (0.81) Stainles
42、s steel 0.012 (0.30) Steel, uncoated or painted 0.053 (1.35) Cast or red refractory 0.40 (10.2) 6.3 A ue-gas conveying conduit of a chimney liner intended for use with solid-fuel-red or oil-red appliances shall be Type 304, 316, 430, or 446 stainless steel or stainless steel having at least equivale
43、nt properties, porcelain-coated steel, or cast or red refractory. Porcelain-coated steel and cast or red refractory shall comply with the requirements in Sections 34, Resistance to Action of Acids Test for Nonmetallic Flue-Gas Conduits, and Section 35, Freezing and Thawing Test for Water Absorptive
44、Nonmetallic Materials, as applicable. OCTOBER 2, 2015 CHIMNEY LINERS - UL 1777 7UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 6.4 A ue-gas conveying conduit of a chimney liner intended for use with Category I gas-red appliances shall be 11
45、00 or 3003 aluminum, Type 304, 316, 430 or 446 stainless steel or stainless steel having at least equivalent properties, porcelain-coated steel, or cast or red refractory. 6.5 An unreinforced outer casing of a chimney liner shall be of galvanized steel, aluminum-coated steel, Series 300 or 400 stain
46、less steel, or equivalent material. The minimum thickness of these materials shall be as specied in Table 6.1. 6.6 Other parts of a chimney liner subject to contact by ue gases or ue-gas air mixtures at or beyond the terminus of the ue-gas conveying conduit (such as caps) shall be of material equiva
47、lent to the ue-gas conveying conduit as specied in 6.3 and 6.4. 6.7 An outer casing or other structural part exclusive of the ue-gas conveying conduit shall be of stainless steel, galvanized steel, or aluminum-coated steel when: a) Deterioration or corrosion of the casing or part would result in the
48、 collapse of the chimney liner or otherwise increase the risk of injury to persons; or b) It is subject to condensation. Galvanized steel or aluminum-coated steel shall comply with the requirements in 6.8. Stainless steel shall be in accordance with Table 6.1. Exception No. 1: This requirement does
49、not apply to the ue-gas conveying conduit. See 6.3 and 6.4. Exception No. 2: This requirement does not apply to parts subject to contact by ue-gas or ue-gas air mixtures at or beyond the terminus of the ue-gas conveying conduit. See 6.6. 6.8 Galvanized steel used for outer casings, structural parts, or other components or subassemblies shall have a zinc coating complying with the coating designation G90 (former coating cl
