ANSI UL 896-1993 UL Standard for Safety Oil-Burning Stoves (Fifth Edition Reprint with Revisions Through and Including November 22 2016).pdf

1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL 896 Oil-Burning Stoves STANDARD FOR SAFETYUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM ULUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR

2、 FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL Standard for Safety for Oil-Burning Stoves, UL 896 Fifth Edition, Dated July 29, 1993 Summary of Topics This revision of ANSI/UL 896 is being issued to reaffirm approval as an American National Standard. No changes in requirements a

3、re involved. The revisions are substantially in accordance with Proposal(s) on this subject dated September 30, 2016. 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 publicatio

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8、NOVEMBER 22, 2016 UL 896 tr1UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL NOVEMBER 22, 2016 UL 896 tr2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL JULY 29,

9、1993 (Title Page Reprinted: November 22, 2016) 1 UL 896 Standard for Oil-Burning Stoves First Edition October, 1936 Second Edition October, 1953 Third Edition March, 1957 Fourth Edition May, 1973 Fifth Edition July 29, 1993 This ANSI/UL Standard for Safety consists of the Fifth Edition including rev

10、isions through November 22, 2016. The most recent designation of ANSI/UL 896 as a Reaffirmed American National Standard (ANS) occurred on November 22, 2016. ANSI approval for a standard does not include the Cover Page, Transmittal Pages, and Title Page. Comments or proposals for revisions on any par

11、t of the Standard may be submitted to UL at any time. Proposals should be submitted via a Proposal Request in ULs On-Line Collaborative Standards Development System (CSDS) at https:/. ULs Standards for Safety are copyrighted by UL. Neither a printed nor electronic copy of a Standard should be altere

12、d in any way. All of ULs Standards and all copyrights, ownerships, and rights regarding those Standards shall remain the sole and exclusive property of UL. COPYRIGHT 2016 UNDERWRITERS LABORATORIES INC. UL/ANSI 896-2004 (R2016)UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIB

13、UTION WITHOUT PERMISSION FROM UL MAY 14, 2004 OIL-BURNING STOVES - UL 896 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 Components .5 3 Units of Measurement .5 4 Glossary .5 5 Instal

14、lation and Operating Instructions .9 CONSTRUCTION 6 Assembly 9 7 Enclosure .10 8 Baffles .11 9 Base .11 10 Burners .11 11 Casing .12 12 Combustion Chamber 12 13 Safety Control .12 14 Damper 12 15 Disposal of Combustion Products .12 16 Draft Regulator 13 17 Fan Housing and Air Ducts .13 18 Fittings a

15、nd Piping .13 19 Flue Collar 14 20 Gaskets 14 21 Heating Surface Joints .14 22 Ignition Means 16 23 Radiation Shields 16 24 Strainers .16 25 Stuffing Boxes .16A 26 Sumps .17 27 Integral Tanks .17 28 Valves .19 29 Internal Wiring 19 30 Wiring Connections 22 31 Wiring Methods .23 ELECTRICAL COMPONENTS

16、 32 General 23 33 Enclosure 24 34 Motors .24 35 Spacings .25 MAY 14, 2004 OIL-BURNING STOVES - UL 896 2AUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL PERFORMANCE 36 General 26 37 Test Installation .26 37.1 Enclosures 26 38 Instrumentation

17、.28 38.1 Draft .28 38.2 Fuel input 28 38.3 Power measurement .29 38.4 Speed measurement 29 38.5 Temperature measurement .30 39 Combustion Test 33 40 Power Interruption Test 36 41 Air Failure Test 36 42 Overvoltage and Undervoltage Test .37 43 Stability Test 37 44 Sump Capacity Test .38 45 Temperatur

18、e Test .38 45.7 Initial test conditions .39 45.8 Room heater test 40 45.9 Range Tests 41 46 Stalled Motor Test 43 47 Lighting Test 43 48 Abnormal Draft Test .44 49 Seepage and Burnoff Test 45 50 Closed Dampers Test 46 50A 10-Day Moist Ammonia Air Stress Cracking Test 46 MANUFACTURING AND PRODUCTION

19、TESTS 51 General 47 MARKINGS 52 General 48 MAY 7, 2010 OIL-BURNING STOVES - UL 896 2BUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL NOVEMBER 17, 1999 OIL-BURNING STOVES - UL 896 3 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED F

20、OR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL This page intentionally left blank. MAY 14, 2004 OIL-BURNING STOVES - UL 896 4UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL INTRODUCTION 1 Scope 1.1 These requirements appl

21、y to oil-burning ue-connected room heaters and ranges as dened herein. They may be used where a competent attendant will not be constantly on duty in the room where the appliance is located, while the appliance is in operation. They are required to be equipped with automatic primary safety controls

22、to prevent abnormal discharge of oil at the burner in case of ignition failure or ame failure. They are not intended for use in spaces in which ammable vapors or gases may be present. 1.2 Requirements for the installation and use of oil-burning equipment are included in the Standard of the National

23、Fire Projection Association for the Installation of Oil-Burning Equipment, NFPA No. 31. 1.3 A product that contains features, characteristics, components, materials, or systems new or different from those covered by the requirements in this Standard, and that involves a risk of re, electric shock, o

24、r injury to persons shall be evaluated using the appropriate additional component and end-product requirements to determine that the level of safety as originally anticipated by the intent of this Standard is maintained. A product whose features, characteristics, components, materials, or systems co

25、nict with specic requirements or provisions of this Standard shall not be judged to comply with this Standard. Where appropriate, revision of requirements shall be proposed and adopted in conformance with the methods employed for development, revision, and implementation of this Standard. 1.3 revise

26、d November 17, 1999 2 Components 2.1 Components of an oil burner, except as specied herein, or a gas burner as well as burner and stove accessories such as constant-level oil valves, metering valves, re pots, etc.; electrical components and materials such as attachment plugs, industrial control equi

27、pment, switches, transformers, electrically operated valves, wires, etc.; and other components or parts shall comply with the requirements for those components, except that such requirements may be modied if appropriate for the particular application. 3 Units of Measurement 3.1 If a value for measur

28、ement is followed by a value in other units in parentheses, the second value may be only approximate. The rst stated value is the requirement. 4 Glossary 4.1 AIR SHUTTER An adjustable device for varying the size of the air inlet or inlets regulating primary or secondary air. 4.2 ANTIFLOODING DEVICE

29、A primary safety control which causes the fuel ow to be shut off upon a rise in fuel level or upon receiving excess fuel, and which operates before the hazardous discharge of fuel can occur. 4.3 APPLIANCE FLUE The ue passages within the appliance. 4.4 AUTOMATICALLY LIGHTED APPLIANCE An appliance in

30、which fuel to the main burner is normally turned on and ignited automatically. 4.5 BAFFLE An object placed in an appliance to direct or to retard the ow of air of ue gases. NOVEMBER 17, 1999 OIL-BURNING STOVES - UL 896 5UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION

31、WITHOUT PERMISSION FROM UL 4.6 BASE The main supporting frame or structure of an assembly. 4.7 BURNER A device for the nal conveyance of fuel or a mixture of fuel and air to the combustion zone. 4.8 BURNER, MECHANICAL-ATOMIZING TYPE A power-operated burner which prepares and delivers the oil and all

32、 or part of the air by mechanical process in controllable quantities for combustion. Some examples are air atomizing, high- and low-pressure atomizing, horizontal rotary, vertical rotary atomizing, and vertical rotary wall-frame burners. 4.9 BURNER, MECHANICAL-DRAFT TYPE A burner which includes a po

33、wer-driven fan, blower, or other mechanism as the principal means for supplying air for combustion. 4.10 BURNER, NATURAL-DRAFT TYPE A burner which depends principally upon the natural draft created in the ue to induce into the burner the air required for combustion. 4.11 BURNER, VAPORIZING TYPE A bu

34、rner consisting of an oil-vaporizing bowl or other receptacle to which liquid fuel may be fed in controllable quantities; the heat of combustion being used to vaporize the fuel, with provision for admitting air and mixing it with the oil vapor in combustible proportions. 4.12 CASING An enclosure for

35、ming the outside of the appliance, no parts of which are likely to be subjected to intense heat. 4.13 COMBUSTIBLE CONSTRUCTION As pertaining to materials adjacent to or in contact with heat producing appliances and ue pipes, steam pipes, and warm air ducts connected thereto, combustible construction

36、 shall mean structures made of or surfaced with wood, compressed paper and plant bers, or other material that will ignite and burn, whether plastered or unplastered. Plastered construction having combustible supports, regardless of the type of lath employed, and gypsum or other wallboard surfaced wi

37、th combustible material, are classied as combustible construction. 4.14 COMBUSTION As used herein, the rapid oxidation of fuel accompanied by the production of heat, or heat and light. Complete combustion of a fuel is possible only in the presence of an adequate supply of oxygen. 4.15 COMBUSTION CHA

38、MBER The portion of an appliance within which combustion occurs and which is usually part of the heat exchanger. 4.16 CONSTANT-LEVEL VALVE A device for maintaining within a reservoir a constant level of fuel for delivery to the burner. 4.17 CONTROL A device designed to regulate the fuel, air, water,

39、 or electrical supply to the controlled equipment. It may be automatic, semi-automatic, or manual. 4.18 CONTROL, LIMIT An automatic safety control responsive to changes in liquid level, pressure, or temperature; for limiting the operation of the controlled equipment. 4.19 CONTROL, PRIMARY SAFETY The

40、 automatic safety control intended to prevent abnormal discharge of oil at the burner in case of ignition failure or ame failure. 4.20 CONTROL, SAFETY See Safety Control. NOVEMBER 17, 1999 OIL-BURNING STOVES - UL 896 6UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WI

41、THOUT PERMISSION FROM UL 4.21 CONTROL, SAFETY COMBUSTION A primary safety control responsive directly to ame properties; sensing the presence of ame and causing fuel to be shut off in event of ame failure. NOVEMBER 17, 1999 OIL-BURNING STOVES - UL 896 6AUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FUR

42、THER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL NOVEMBER 17, 1999 OIL-BURNING STOVES - UL 896 6B No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 4.22 DAMPER A valve or plate for regulating draft or ow of ue g

43、ases. A damper is generally considered as being located on the downstream side of the combustion chamber, usually in a ue passage of the appliance or in the ue pipe. 4.23 DAMPER, AUTOMATICALLY OPERATED A damper operated by an automatic control. 4.24 DAMPER, MANUALLY OPERATED An adjustable damper man

44、ually set and locked in the desired position. 4.25 DRAFT REGULATOR A device which functions to maintain a desired draft in the appliance by automatically reducing the chimney draft to the desired value. 4.26 ELECTRICAL CIRCUITS a) HIGH-VOLTAGE CIRCUIT A circuit involving a potential of not more than

45、 600 volts and having circuit characteristics in excess of those of a low-voltage circuit. b) LOW-VOLTAGE CIRCUIT A circuit involving a potential of not more than 30 volts and supplied by a primary battery or by a standard Class 2 transformer or other suitable transforming device, or by a suitable c

46、ombination of transformer and xed impedance having output characteristics in compliance with what is required for a Class 2 transformer. c) A circuit derived from a source of supply classied as a high-voltage circuit, by connecting resistance in series with the supply circuit as a means of limiting

47、the voltage and current, is not considered to be a low-voltage circuit as described in item (b). d) SAFETY CONTROL CIRCUIT A circuit involving one or more safety controls, in which failure due to grounding, opening, or shorting of any part of the circuit can cause unsafe operation of the controlled

48、equipment or can introduce a direct re or life hazard. 4.27 EXCESS AIR Air which passes through the combustion area and the appliance ues in excess of that which is theoretically required for complete combustion. 4.28 FLUE COLLAR That portion of an appliance designed for attachment of the ue pipe. 4

49、.29 FLUE GASES Combustion products and excess air. 4.30 FLUE PIPE The conduit connecting the heating appliance with the vertical ue or chimney. 4.31 FUEL OIL Any hydrocarbon oil as dened by Commercial Standard CS12 or ASTM D396. 4.32 FULL DRAIN As applied to tanks, means the tank is emptied through its normal feed outlet at the bottom of the tank. 4.33 HEATER, CIRCULATING A room heater designed to convert energy in the f