1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULNational Differences ForUL 372Automatic Electrical Controls for Household and Similar Use - Part 2: Particular Requirementsfor Burner Ignition Systems and ComponentsUL COPYRIGHTED MATERIAL NOT AU
2、THORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULNational Differences ForUL 372Automatic Electrical Controls for Household and Similar Use - Part 2: Particular Requirements forBurner Ignition Systems and ComponentsEdition: 6Edition Date: July 31, 2007This revision of UL 372
3、 is being issued to remove the ANSI approval. No changes inrequirements are involved. As noted in the Commitment for Amendments statement located onthe back side of the title page, UL, CSA, and CSA America are committed to updating thisharmonized standard jointly. However, the revision pages dated J
4、uly 27, 2012 will not be jointlyissued by UL, CSA, and CSA America, as these revision pages only address the removal ofthe ANSI approval from UL 372.This document provides a single listing of the National Differences included in the UL adoption ofthe corresponding IEC standard.All rights reserved. N
5、o part of this publication may be reproduced, stored in a retrieval system, ortransmitted in any form by any means, electronic, mechanical photocopying, recording, or otherwisewithout prior permission of UL.UL provides this standards document as is without warranty of any kind, either expressed or i
6、mplied,including but not limited to, the implied warranties of merchantability or fitness for any purpose.In no event will UL be liable for any special, incidental, consequential, indirect or similar damages,including loss of profits, lost savings, loss of data, or any other damages arising out of t
7、he use of or theinability to use this standards document, even if UL or an authorized UL representative has been advisedof the possibility of such damage. In no event shall ULs liability for any damage ever exceed the pricepaid for this standards document, regardless of the form of the claim.Users o
8、f the electronic versions of ULs Standards for Safety agree to defend, indemnify, and hold ULharmless from and against any loss, expense, liability, damage, claim, or judgment (including reasonableattorneys fees) resulting from any error or deviation introduced while purchaser is storing an electron
9、icStandard on the purchasers computer system.Copyright Underwriters Laboratories Inc.JULY 27, 2012NATIONAL DIFFERENCES FOR UL UL 3722UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULPrefaceThis document provides a single listing of the technica
10、l National Differences included in the UL adoptionof the corresponding IEC standard.In its IEC-based standards, UL uses the notations indicated below to identify national difference type, andthese types are additionally noted in this document. The standard may not use all types of thesedeviations.D1
11、 - These are deviations which are based on basic safety principles and requirements, elimination ofwhich would compromise safety for U.S. consumers and users of products.D2 - These are deviations based on safety practices. These are deviations for IEC requirements that maybe acceptable, but adopting
12、 the IEC requirements would require considerable retesting or redesign on themanufacturers part.DC - These are deviations based on the component standards and will not be deleted until a particularcomponent standard is harmonized with the IEC component standard.DE - These are deviations based on edi
13、torial comments or corrections.DR - These are deviations based on the national regulatory requirements.Each national difference contains a description of what the national difference entails. Typically one of thefollowing words is used to explain how the text of the national difference is to be appl
14、ied to the base IECtext:Addition / Add - An addition entails adding a complete new numbered clause, subclause, table,figure, or annex. Addition is not meant to include adding select words to the base IEC text.Deletion / Delete - A deletion entails complete deletion of an entire numbered clause, subc
15、lause,table, figure, or annex without any replacement text.Modification / Modify - A modification is an altering of the existing base IEC text such as theaddition, replacement or deletion of certain words or the replacement of an entire clause,subclause, table, figure, or annex of the base IEC text.
16、JULY 27, 2012 NATIONAL DIFFERENCES FOR UL UL 372 3UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULNational Differences1.1 Replacement:This standard modifies or amends the requirements of the Part 1 standard. In Canada thePart 1 standard applic
17、able is CAN/CSA E60730-1, Automatic electrical controls forhousehold and similar use Part 1: General Requirements, and in the U.S. the Part 1standard applicable is UL 60730-1A , Automatic electrical controls for household andsimilar use Part 1: General Requirements, 3rd Edition.This standard applies
18、 to newly produced automatic burner ignition systems and systemcomponents constructed entirely of new, unused parts and materials for the automaticcontrol of burners for one or more of the following fuels:oil,natural gas,manufactured gas,mixed gas,liquefied petroleum gas or,LP gas-air mixturesThis s
19、tandard is applicable to a complete burner ignition system, a separate programmingunit, an oxygen depletion safety shutoff system and components that perform one or moreof the following functions:a) Ignite the fuel at the main burner(s), or at the pilot burner(s) so it can ignitethe main burner(s);b
20、) Prove the presence of either the ignition source, the main burner flame, orboth;c) Automatically act to shut off the fuel supply to the main burner(s), or to thepilot and main burner(s), when the supervised flame or ignition source is notproved; andd) Automatically act to shut off the gas supply t
21、o the pilot and main burner(s),when the oxygen content of the room in which the equipment is installed isreduced below a predetermined level.Components can be, but are not limited to: automatic controls; pilot burners,thermoelectric devices, electrodes, ignition devices, ignition sources and flame d
22、etectors.Throughout this standard the following terms shall be abbreviated as shown below:JULY 27, 2012NATIONAL DIFFERENCES FOR UL UL 3724UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM UL1. system means burner ignition system.2. component means
23、 burner ignition system component.3. control means system or component.Requirements for separate ignition transformers are covered in Standard for SpecialtyTransformers, UL 506, and CSA C22.2 No. 13, the Standard for Luminous Tube Signs, Oiland Gas Burner Ignition Equipment, Cold-Cathode Interior Li
24、ghting.1.1.1 Replacement:This standard applies to inherent safety; to the manufacturers declared operating values,operating times and operating sequences where such are associated with burner safetyand to the testing of systems and components used in, on, or in association with burners.Requirements
25、for specific operating values, operating times, and operating sequences aregiven in the standards for appliances and equipment.1.1.5A Addition:This standard applies to each component of an automatic burner ignition system shall becapable of operation throughout an ambient temperature range of 32F (0
26、C) to 125F(51.5C). The manufacturer is allowed to specify temperatures below 32F (0C) and above125F (51.5C).a) For gas fired equipment rated 400,000 Btu/hr (117 228 W) or less, Tmin, andTmaxare as specified in 1.1.5A; andb) For burner controls for all other equipment, Tmax, declared at less than 150
27、F(65.5C) shall be tested at 150F (65.5C) or higher as specified by themanufacturer.1.3A Addition:Compliance with this Part 2 standard does not imply that such a control is acceptable foruse on fuel burning appliances or equipment without supplemental test with the device(s)applied to the particular
28、appliance or equipment design.1.3A.1 All specifications as to construction set forth herein may be satisfied by theconstruction actually prescribed or such other construction as will provide at leastequivalent performance.1.3A.2 If a value for measurement as given in this standard is followed by an
29、equivalentvalue in other units, the first stated value is to be regarded as the specification.1.5 Addition:1.5.1 Normative referencesThe following normative reference documents contain provisions which, through referencein this text, constitute provisions of this Standard. At the time of publication
30、, the editionsindicated were valid. All normative documents are subject to revision, and parties toJULY 27, 2012 NATIONAL DIFFERENCES FOR UL UL 372 5UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULagreements based on this Standard are encourag
31、ed to investigate the possibility ofapplying the most recent editions of the normative documents indicated below. Membersof IEC and ISO maintain registers of currently valid international Standards.ANSI/ASME B1.20.1-1983 (R1992)Pipe Threads, General Purpose (Inch).ANSI Z21.21-2005/CSA 6.5-2005Automa
32、tic Valves for Gas Appliances.ANSI Z21.78-2005/CSA 6.20-2005Combination Gas Controls for Gas Appliances.ANSI Z223.1/NFPA 54-2006National Fuel Gas Code.CAN/CSA B140.2.1-M90 (R2005)Oil Burners; Atomizing Type.CAN/CSA E384-14-1-95 (R2004)Fixed Capacitors in Electronic Equipment Part 14: Blank Detail Sp
33、ecification: FixedCapacitors for Electromagnetic Interference Suppression and Connection to the SupplyMains.CAN/CSA E60730-02Automatic Electrical Controls for Household and Similar Use Part 1: GeneralRequirements,CSA B 149.1-05Natural Gas and Propane Installation Code.CSA C22.1-06Canadian Electrical
34、 Code, Part 1.CSA C22.2 No. 0.15-01Adhesive Labels.CSA C22.2 No. 0.17-00 (R2004)Evaluation of Properties of Polymeric Materials.CSA C22.2 No. 3-M1988 (R2004)Electrical Features of Fuel Burning Equipment.CSA C22.2 No. 13-1962 (R2001)Transformers for Luminous-Tube Signs, Oil- and Gas-Burner Ignition E
35、quipment,Cold-Cathode Interior Lighting.CSA C22.2 No. 49-98 (R2003)Flexible Cords and Cables.JULY 27, 2012NATIONAL DIFFERENCES FOR UL UL 3726UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULCSA C22.2 No. 65-03Wire Connectors.CSA C22.2 No. 66-19
36、88 (R2001)Specialty Transformers.CSA C22.2 No. 94-M91 (R2001)Specialty Purpose Enclosures.CSA C22.2 No. 127-99 (R2004)Equipment and Lead Wires.CSA C22.2 No. 153-M1981 (R2003)Quick-Connect Terminals.CSA C22.2 No. 158-1987 (R2004)Terminal Blocks.CSA C22.2 No. 248.1-00 (R2005)Low-Voltage Fuses Part 1:
37、General Requirements.CAN/CSA-C22.2 No. 60065-03Audio, video and similar electronic apparatus Safety Requirements.IEC 60068-2-6: 1995-03Environmental testing Part 2: Test Fc: Vibration (sinusoidal).IEC 60068-2-75: 1997-08Environmental testing Part 275: Test Eh: Hammer tests.IEC 60085: 2004-06Electric
38、al Insulation Thermal classification.IEC 60127-1: 2003-02Miniature Fuses Part 1: Definitions for Miniature Fuses and General Requirements forMiniature Fuse-links.IEC 60264-1: 2005-04Low-voltage Fuses Part 1: General Requirements.CAN/CSA-E60335-1/4-03Household and similar electrical appliances, Safet
39、y Part 1: General Requirements.CAN/CSA-E60384-14-95 (R2004)Fixed capacitors for use in electronic equipment Part 14: Sectional specification: Fixedcapacitors for electromagnetic interference suppression and connection to the supplymains.IEC 61000-4-2: 2000-04Electromagnetic compatibility (EMC) Part
40、4-2: Testing and measurement techniques Electrostatic discharge immunity test.JULY 27, 2012 NATIONAL DIFFERENCES FOR UL UL 372 7UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULIEC 61000-4-3: 2002-09Electromagnetic compatibility (EMC) Part 4-3:
41、 Testing and measurement techniques -Radiated, radio-frequency, electromagnetic field immunity test.IEC 61000-4-4: 1995-01Electromagnetic compatibility (EMC) Part 4: Testing and measurement techniques Section 4: Electrical fast transient burst immunity test.IEC 61558-2-4: 1997-03Safety of power tran
42、sformers, power supply units and similar Part 2: Particularrequirements for isolating transformers for general use.NFPA 70-2005,National Electrical Code.UL 50-1995Enclosures for Electrical Equipment.UL 248-1-2000Low-Voltage Fuses.UL 486A-1997Wire Connectors and Soldering Lugs for Use With Copper Con
43、ductors.UL 506-1994Specialty Transformers.UL 746C-2001Polymeric Materials Use in Electrical Equipment Evaluations.UL 840-1993Standard for Safety for Insulation Coordination Including Clearances and CreepageDistances for Electrical Equipment.UL 969-1995Marking and Labeling Systems.UL 1059-2001Standar
44、d for Terminal Blocks.UL 1414-2000Across-the-Line, Antenna-Coupling and Line-by-Pass Capacitors for Radio- andTelevision-Type Appliances.UL 1585-1998Class 2 and Class 3 Transformers.UL 1998Standard for Software in Programmable Components.UL 60065-2003Standard for Audio, video and similar electronic
45、apparatus Safety requirements.JULY 27, 2012NATIONAL DIFFERENCES FOR UL UL 3728UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULUL 60335-1-2004Household and similar electrical appliances Safety Part 1: General requirements.UL 60730-1A-2002Standa
46、rd for Safety for Automatic Electrical Controls for Household and Similar Use, Part1: General Requirements.2.1.5A Addition:CIRCUIT HIGH VOLTAGE: A circuit involving a potential of not more than 600 volts and havingcircuit characteristics in excess of those of an extra-low voltage or an isolated limi
47、tedsecondary circuit.2.1.14A Addition:HIGH TENSION CIRCUIT: An ignition circuit involving a potential of more than 600 volts suppliedby a step-up transformer or by a suitable combination of devices which will increasehigh voltage to over 600 volts.2.1.15A Addition:EARTHING: Connected with an electri
48、cal ground; sometimes referred to as GROUNDING.2.1.16A Addition:BONDED: Permanently and reliably connected to an earthing terminal.2.1.17A Addition:GROUNDING: See 2.1.15A.2.2.101.1A Addition:BURNER IGNITION SYSTEM: A system which includes all the components necessary to performthe following function
49、s:a) Ignite the fuel at the main burner(s), or at the pilot burner(s) so it can ignitethe main burner(s);b) Prove the presence of either the ignition source, the main burner flame, orboth; andc) Automatically act to shut off the fuel supply to the main burner(s), or to thepilot and main burner(s), when the supervised flame or ignition source is notproved.The various functions of a burner ignition system may be in more than one housing.2.2.101.2A Addition:BURNER IGNITION SYSTEM COMPONENT: A component whi
