1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL 737 Fireplace StovesUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM ULUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION
2、OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL Standard for Safety for Fireplace Stoves, UL 737 Tenth Edition, Dated April 25, 2011 Summary of Topics This revision of ANSI/UL 737 is being issued to reaffirm approval as an American National Standard. No changes in requirements are involved. The revisi
3、ons are substantially in accordance with Proposal(s) on this subject dated May 15, 2015. Text that has been changed in any manner or impacted by ULs electronic publishing system is marked with a vertical line in the margin. All rights reserved. No part of this publication may be reproduced, stored i
4、n 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 kind, either expressed or implied, including but not limited to, the implied warranties
5、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 damages arising out of the use of or the inability to use this Standard, even if UL or
6、 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. Users of the electronic versions of ULs Standards for Safety agree to defend, indemni
7、fy, 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 electronic Standard on the purchasers computer system. AUGUST 19, 2015 UL 737 tr1UL
8、COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL AUGUST 19, 2015 UL 737 tr2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL APRIL 25, 2011 (Title Page Reprinted: Augu
9、st 19, 2015) 1 UL 737 Standard for Fireplace Stoves First Edition June, 1968 Second Edition November, 1971 Third Edition April, 1975 Fourth Edition May, 1978 Fifth Edition March, 1982 Sixth Edition September, 1988 Seventh Edition March, 1995 Eighth Edition May, 1996 Ninth Edition November, 2007 Tent
10、h Edition April 25, 2011 This ANSI/UL Standard for Safety consists of the Tenth Edition including revisions through August 19, 2015. The most recent designation of ANSI/UL 737 as a Reaffirmed American National Standard (ANS) occurred on August 17, 2015. ANSI approval for a standard does not include
11、the Cover Page, Transmittal Pages and Title Page. Any other portions of this ANSI/UL standard that were not processed in accordance with ANSI/UL requirements are noted at the beginning of the impacted sections. Comments or proposals for revisions on any part of the Standard may be submitted to UL at
12、 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 Standards and all c
13、opyrights, ownerships, and rights regarding those Standards shall remain the sole and exclusive property of UL. COPYRIGHT 2015 UNDERWRITERS LABORATORIES INC. ANSI/UL 737-2011 (R2015)UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL APRIL 25, 2
14、011 FIREPLACE STOVES - UL 737 2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL CONTENTS INTRODUCTION 1 Scope .6 2 Glossary .6 3 Components 7 3.1 General .7 3.2 Attachment plugs, receptacles, connectors, and terminals .8
15、3.3 Boxes and raceways .10 3.4 Capacitors and lters 10 3.5 Controls 10 3.6 Cords, cables, and internal wiring .12 3.7 Overcurrent protection .13 3.8 Polymeric materials and enclosures .13 3.9 Power supplies 14 3.10 Printed wiring boards .14 3.11 Switches 14 3.12 Transformers 15 4 Undated References
16、.15 5 General .16 6 Materials 16 7 Assembly .18 7.1 General 18 7.2 Flue damper 19 7.3 Fire screen .19 7.4 Flue collar 19 7.5 Radiation shield and baffle .19 7.6 Thermostatic control .20 7.7 Grate 20 7.8 Separable handle .20 7.9 Barometric draft regulator 20 7.10 Combustion air duct system .21 PERFOR
17、MANCE 8 General .21 9 Test Installation 22 10 Temperature Measurement 27 11 Fire Tests 32 12 Radiant Fire Test .38 13 Brand Fire Test .40 14 Flash Fire Test .44 15 Glazing Test .45 15.1 General .45 15.2 Impact test 45 15.3 Water shock test .46 16 Strength Tests 47 16.1 Fire chamber 47 16.2 Chimney c
18、onnector .51 17 Stability Test .53 APRIL 25, 2011 FIREPLACE STOVES - UL 737 3UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL FIREPLACE STOVES FOR USE IN MOBILE HOMES 18 Installation .53 19 Chimney .54 20 Spark Arrester 54 21 Combustion Air I
19、nlet 55 22 Test Structure 55 23 Test Method .55 24 Drop Test 57 BLOWER ASSEMBLY GENERAL 25 General 57 CONSTRUCTION 26 Enclosure 58 26.1 General .58 26.2 Mechanical protection .61 26.3 Electrical protection .62 26.4 Doors and covers 65 27 Mounting of Electrical Components .66 28 Field-Installed Blowe
20、r Assemblies .67 29 Field Supply Connections 68 29.1 Permanently-connected units 68 29.2 Cord-connected units .69 30 Grounding .71 30.1 General .71 30.2 Permanently-connected units 71 30.3 Cord-connected units .72 31 Internal Wiring 73 31.1 General .73 31.2 Methods 74 32 Separation of Circuits .76 3
21、3 Bonding for Grounding 77 34 Capacitors .79 35 Insulating Material 80 36 Motors and Motor Overcurrent (Overload) Protection 80 37 Switches and Controllers 84 38 Transformers .85 39 Spacings 85 PERFORMANCE 40 Test Voltages 88 41 Temperature Measurements .88 41.1 Thermocouple method 88 41.2 Change-in
22、-resistance method 89 42 Input Test 89 43 Temperature Test Electrical Components 90 44 Dielectric Voltage-Withstand Test .90 APRIL 25, 2011 FIREPLACE STOVES - UL 737 4UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 45 Leakage Current Test .9
23、0 46 Stalled Motor Test 93 47 Strain Relief Test .94 47.1 Power supply cord 94 47.2 Field wiring leads .94 48 Push-Back Relief Test .94 49 Short-Circuit Test .94 50 Knockout Test 95 MANUFACTURING AND PRODUCTION TESTS 51 Production Line Dielectric Voltage-Withstand Test 95 52 Production Line Groundin
24、g Continuity Test .96 MARKING 53 General 96 54 Marking Permanence Tests 99 54.1 General .99 54.2 Air oven-aging test .99 54.3 Humidity test .99 54.4 Unusual-condition exposure test 100 INSTALLATION INSTRUCTIONS 55 Installation and Operating Instructions 100 55.1 General 100 55.2 Installation instruc
25、tions .100 55.3 Operating instructions .102 APRIL 25, 2011 FIREPLACE STOVES - UL 737 5UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL INTRODUCTION 1 Scope 1.1 These requirements cover replace stoves that are freestanding assemblies having re
26、 chambers intended to be operated open to the room or, when equipped with doors, to be operated with the doors either open or closed. 1.2 Fireplace stoves covered by these requirements are intended for attachment to a residential chimney capable of being used for use with low heat appliances and int
27、ended for use with solid wood or coal fuels. 1.3 Fireplace stoves are intended for installation in accordance with the Standard for Chimneys, Fireplaces, Vents, and Solid Fuel Burning Appliances, NFPA 211, and in accordance with codes such as the International Mechanical Code, International Resident
28、ial Code, and the Uniform Mechanical Code. 1.4 Fireplace stoves intended for use in mobile homes are to be installed in accordance with the Mobile Home Construction and Safety Standards published by the Department of Housing and Urban Development (HUD). 1.5 The product shall include: a) A eld-instal
29、led cord-connected or permanently-connected blower assembly; and b) Other eld-installed electrical accessories, rated at 250 volts or less, and intended to be employed in locations in accordance with the National Electrical Code, NFPA 70. 2 Glossary 2.1 For the purpose of this standard, the followin
30、g denitions apply. 2.2 ALUMINUM-COATED STEEL An aluminum-coated steel in which the bond between the steel and the aluminum is an iron-aluminum alloy. 2.3 CHIMNEY CONNECTOR The ue pipe that connects a fuel-burning appliance to a chimney. 2.4 COMBUSTIBLE MATERIAL AND NONCOMBUSTIBLE MATERIAL As used in
31、 this standard, these terms are dened in the Standard Glossary of Terms Relating to Chimneys, Vents, and Heat- Producing Appliances, NFPA 97. 2.5 DAMPER A valve or plate that regulates draft or ow of ue gases or inlet combustion air. Shall be either manually or automatically operated. 2.6 GRATE A fr
32、ame for supporting the fuel within a replace stove. 2.7 HEARTH The oor area within the re chamber of a replace stove. 2.8 FLOOR PROTECTOR (HEARTH EXTENSION) The noncombustible material applied to the combustible oor area located beneath the product and extending beyond the front and sides and to the
33、 rear of the product. The area is to be of the dimensions specied in the installation instructions. APRIL 25, 2011 FIREPLACE STOVES - UL 737 6UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 3 Components 3.1 General 3.1.1 A component of a pro
34、duct covered by this standard shall: a) Comply with the requirements for that component as indicated in 3.2 3.12; b) Be used in accordance with its rating(s) established for the intended conditions of use; c) Be used within its established use limitations or conditions of acceptability; d) Additiona
35、lly comply with the applicable requirements of this end product standard; and e) Not contain mercury. Note - Specic components are incomplete in construction features or restricted in performance capabilities. Such components are intended for use only under limited conditions, such as certain temper
36、atures not exceeding specied limits, and shall be used only under those specic conditions. Exception No. 1: A component of a product covered by this standard is not required to comply with a specic component requirement that: a) Involves a feature or characteristic not required in the application of
37、 the component in the product, b) Is superseded by a requirement in this standard, or c) Is separately investigated when forming part of another component, provided the component is used within its established ratings and limitations. Exception No. 2: A component complying with a UL component standa
38、rd other than those cited in 3.2 3.12 is acceptable if: a) The component also complies with the applicable component standard of 3.2 3.12; or b) The component standard: 1) Is compatible with the ampacity and overcurrent protection requirements NFPA 70, where appropriate; 2) Considers long-term therm
39、al properties of polymeric insulating materials in accordance with the Standard for Polymeric Materials Long Term Property Evaluations, UL 746B, and 3) Any use limitations of the other component standard is identied and appropriately accommodated in the end use application. For example, a component
40、used in a household application, but intended for industrial use and complying with the relevant component standard may assume user expertise not common in household applications. APRIL 25, 2011 FIREPLACE STOVES - UL 737 7UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTIO
41、N WITHOUT PERMISSION FROM UL 3.1.2 A component that is also intended to perform other functions, such as over current protection, ground-fault circuit-interruption, surge suppression, any other similar functions, or any combination thereof, shall comply additionally with the requirements of the appl
42、icable UL standard(s) that cover devices that provide those functions. Exception: Where these other functions are not required for the application and not identied as part of markings, instructions, or packaging for the appliance, the additional component standard(s) need not be applied. 3.1.3 A com
43、ponent not anticipated by the requirements of this standard, not specically covered by the component standards of 3.2 3.12, and that involves a potential risk of electric shock, re, or personal injury, shall be additionally investigated in accordance with the applicable UL standard, and shall comply
44、 with 3.1.1 (b) (d). 3.1.4 With regard to a component being additionally investigated, reference to construction and performance requirements in another UL end product standard is appropriate where that standard anticipates normal and abnormal use conditions consistent with the application of this S
45、tandard. 3.2 Attachment plugs, receptacles, connectors, and terminals 3.2.1 Attachment plugs, receptacles, appliance couplers, appliance inlets (motor attachment plugs) shall comply with the Standard for Attachment Plugs and Receptacles, UL 498. Exception No. 1: Attachment plugs and appliance couple
46、rs integral to cord sets or power supply cords are covered under the requirements of the Standard for Cord Sets and Power-Supply Cords, UL 817 and need not comply with UL 498. Exception No. 2: Plugs, receptacles, connectors, and terminals for specialty applications (e.g. data processing or communica
47、tions) and located in a low-voltage circuit, complying with Section 32, Separation of Circuits, and not involving the risk of re or personal injury need not comply with the Standard for Appliance Wiring Material, UL 758. 3.2.2 Quick-connect terminals, both connectors and tabs, for use with one or tw
48、o 22 - 10 AWG copper conductors, having nominal widths of 2.8, 3.2, 4.8, 5.2, and 6.3 mm (0.110, 0.125, 0.187, 0.205, and 0.250 in), intended for internal wiring connections in appliances shall comply with the Standard for Electrical Quick-Connect Terminals, UL 310. Exception No. 1: Other sizes of q
49、uick-connect terminals shall be investigated with respect to crimp pull out, insertion-withdrawal, temperature rise, and all tests shall be conducted in accordance with UL 310. Exception No. 2: Plugs, receptacles, connectors, and terminals for specialty applications (e.g. data processing or communications) and located in a low-voltage circuit, complying with Section 32, Separation of Circuits, and not involving the risk of re or personal injury need not comply with the
