1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL 2096 Commercial/Industrial Gas and/or Oil-Burning Assemblies With Emission Reduction EquipmentUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSI
2、ON FROM ULUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL Standard for Safety for Commercial/Industrial Gas and/or Oil-Burning Assemblies With Emission Reduction Equipment, UL 2096 Third Edition, Dated October 27, 2006 Summary of Topics T
3、his revision to UL 2096 is being issued to remove the reference to the withdrawal date of UL 873 and to address universal upkeep of UL Standards for Safety. These revisions are considered to be non-substantive and not subject to ULs STP process. Text that has been changed in any manner or impacted b
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7、ut 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. Users of the ele
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9、dard on the purchasers computer system. The requirements in this Standard are now in effect, except for those paragraphs, sections, tables, gures, and/or other elements of the Standard having future effective dates as indicated in the note following the affected item. The prior text for requirements
10、 that have been revised and that have a future effective date are located after the Standard, and are preceded by a SUPERSEDED REQUIREMENTS notice. MARCH 9, 2015 UL 2096 tr1UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL MARCH 9, 2015 UL 209
11、6 tr2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL OCTOBER 27, 2006 (Title Page Reprinted: March 9, 2015) 1 UL 2096 Standard for Commercial/Industrial Gas and/or Oil-Burning Assemblies With Emission Reduction Equipment
12、 First Edition November, 1993 Second Edition July, 1999 Third Edition October 27, 2006 This UL Standard for Safety consists of the Third edition including revisions through March 9, 2015. Comments or proposals for revisions on any part of the Standard may be submitted to UL at any time. Proposals sh
13、ould 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 copyrights, ownerships,
14、and rights regarding those Standards shall remain the sole and exclusive property of UL. COPYRIGHT 2015 UNDERWRITERS LABORATORIES INC.UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL OCTOBER 27, 2006 UL 2096 2 No Text on This PageUL COPYRIGHT
15、ED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL CONTENTS PART I ALL EQUIPMENT INTRODUCTION 1 Scope .9 2 Units of Measurement .9 3 Components 9 4 Glossary 10 5 Undated References .18 CONSTRUCTION 6 General .18 7 Corrosion Protection .20 8 Protection of U
16、sers and Service Personnel 20 9 Enclosures 24 9.1 General 24 9.2 Accessibility of uninsulated live parts and lm-coated wire general .28 9.3 Doors and covers .32 9.4 Field wiring system connection 33 10 Field Wiring 34 10.1 General .34 10.2 Leads and terminals 36 11 Internal Wiring 37 11.1 General .3
17、7 11.2 Methods 38 11.3 Short-circuit protection 41 12 Separation of Circuits .41 ELECTRICAL COMPONENTS 13 Bonding for Grounding 43 14 Mounting of Electrical Components .46 15 Motors and Motor Overload Protection 47 16 Overcurrent Protection of High-Voltage Control-Circuit Conductors 51 16.1 General
18、.51 16.2 Direct-connected high-voltage control circuit .51 16.3 Tapped high-voltage control circuits 51 16.4 Overcurrent-protective devices .52 17 Overcurrent Protection of Transformers 53 17.1 High-voltage transformers general 53 17.2 High-voltage transformers thermal protection .53 17.3 High-volta
19、ge transformers overcurrent protection 54 17.4 Low-voltage transformers general 54 17.5 Low-voltage transformers overcurrent protective devices .55 18 Switches and Controllers 55 19 Capacitors .56 20 Electrical Insulating Materials .57 OCTOBER 27, 2006 UL 2096 3UL COPYRIGHTED MATERIAL NOT AUTHORIZED
20、 FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL SPACINGS 21 High-Voltage Circuits 57 22 Low-Voltage Circuits 58 PERFORMANCE 23 General 59 24 Instrumentation .60 24.1 Draft 60 24.2 Fuel input .60 24.3 Power measurement 60 24.4 Speed measurement .60 24.5 Temperature measurement 60
21、 24.6 Flue-gas sampling and temperatures .63 25 Test Voltage .64 26 Power Input Test .65 27 Temperature Test .65 28 Short-Circuit Test .69 29 Overload Test, High-Voltage Transformers .72 30 Burnout Test, High-Voltage Transformers 72 31 Dielectric Voltage-Withstand Test .73 31.1 General .73 31.2 Diel
22、ectric withstand Ignition assembly .74 31.3 Dielectric withstand Electrode insulator 74 MANUFACTURING AND PRODUCTION TESTS 32 General 74 33 Production Line Dielectric Voltage-Withstand Test 74 MARKING 34 General 76 35 Nameplate .76 36 Supplemental Marking .77 INSTRUCTIONS 37 General 80 PART II - BUR
23、NER ASSEMBLIES CONSTRUCTION 38 General 81 39 Assembly 81 40 Accessibility for Servicing 84 41 Fan Housings and Air Tubes .84 42 Combustion Air Controls .85 43 Fuel Strainers 86 44 Fittings, and Piping and Tubing .91 AUGUST 13, 2012 UL 2096 4UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUC
24、TION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 45 Valves and Regulators 94 45.1 Automatic safety shutoff valves General .94 45.2 Oil valves .94 45.3 Gas valves 95 45.3A Automatic valve proving systems .96 45.4 Manually operated valves Oil 96 45.5 Manually operated valves Gas 96A 45.6 Pressure regul
25、ators Oil 96A 45.7 Pressure regulators Gas .97 46 Stuffing Boxes 97 47 Bleeds and Vents .98 48 Gauges 99 49 Ignition Systems General 99 50 Oil-Burning Devices 100 51 Gas-Burning Devices .100 52 Electric High-Tension Ignition .101 52.1 Spark igniters .101 52.2 Electrode and bus bars 101 52.3 Insulato
26、rs 101 52.4 Leads 102 52.5 Transformers .102 53 Gas Pilots 103 54 Control Applications 104 55 Primary Safety Controls 105 56 Purge and Combustion Air Monitoring Controls 109 56.1 General 109 56.2 Controls for oil burning assemblies 110 57 Oil Atomization Control .110 58 Oil Temperature Control 111 5
27、9 Gas Pressure Controls .111 60 Interlocks .112 61 Combination Gas-Oil Burners .112 PERFORMANCE 62 Test Installation .113 63 Tests Firing Oil 113 63.1 Combustion Test No. 1 .113 63.2 Mechanical-atomizing burners Test No. 2 114 63.3 Combustion air failure test Test No. 3 115 63.4 FGR fan failure test
28、 Test No. 4 116 63.5 Interruption of atomization test Test No. 5 117 63.6 Undervoltage test Test No. 6 .117 63.7 Power interruption test Test No. 7 .118 63.8 Ignition tests, electric high-tension reduced voltage cold oil Test No. 8 .119 63.9 Combustion detectors Test No. 9 120 63.10 Ignition test, g
29、as reduced voltage Test No. 10 .120 63.11 Pilot supervision Test No. 11 121 63.12 Flame failure response Test No. 12 121 63.13 Pilot stability Test No. 13 121 63.14 Ignition test, gas-electric Test No. 14 .122 63.15 Ignition test, gas-electric high-tension reduced voltage cold oil Test No. 15 . . .
30、.122 63.16 Ignition test, multiple-atomizer burner Test No. 16 123 AUGUST 13, 2012 UL 2096 5UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 63.17 Fuel changeover test Test No. 17 124 64 Tests Firing Gas .124 64.1 Combustion Test No. 1 .124 6
31、4.2 Endurance Test No. 2 .125 64.3 Combustion air failure Test No. 3 125 64.4 FGR fan failure test Test No. 4 126 64.5 Undervoltage Test No. 5 .127 64.6 Power interruption Test No. 6 .127 64.7 Pilot supervision Test No. 7 .128 64.8 Ignition, gas-electric high tension Test No. 8 128 64.9 Ignition, mu
32、ltiple burner Test No. 9 129 64.10 Delayed ignition Test No. 10 .129 PART III BOILER ASSEMBLIES CONSTRUCTION 65 Assembly .130 66 Accessibility for Servicing .131 67 Casing .131 68 Radiation Shields or Liners .132 69 Combustion Chamber 132 70 Baffles .132 71 Flue Collar 133 72 Flue Dampers, Draft Reg
33、ulator, and Draft Hoods 133 73 Controls 134 73.1 Application .134 73.2 Operating controls .134 73.3 Limit controls .134 73.4 Primary safety control 135 73.5 Liquid level limit controls .135 73.6 Pressure limit controls .136 73.7 Temperature limit controls 136 73.8 Safety shut-off valves 136 74 Insta
34、llation of External Controls and Fittings 136 PERFORMANCE 75 General 137 76 Test Installation for Standard Clearances .139 76.1 Enclosure 139 76.2 Chimney connector 141 77 Initial Test Conditions 145 78 Combustion Test No. 1 .146 79 Limit Control Cutout Test No. 2 147 80 Continuous Operation Tempera
35、tures Test No. 3 148 81 Low Water Cutoff Test No. 4 149 AUGUST 13, 2012 UL 2096 6UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL PART IV FURNACES AND HEATERS CONSTRUCTION 82 Assembly .149 83 Accessibility .150 84 Air Filters .151 85 Baffles
36、.151 86 Burner Equipment .151 87 Controls 151 87.1 General 151 87.2 Limit Controls .151 88 Bases 152 89 Heating Surfaces and Combustion Chambers .153 90 Radiation Shields 153 91 Materials in Air Handling Compartments 153 92 Casings 155 93 Fuel Lines and Components 156 94 Flue Collars .156 95 Flue Da
37、mpers, Draft Regulators, and Draft Hoods .156 PERFORMANCE 96 General 156 97 Test Installations 158 97.1 Floor-mounted devices 158 97.2 Suspended furnaces .158 97.3 Unit heaters 164 97.4 Test ducts for furnaces 164 98 Initial Test Conditions 167 98.1 General 167 98.2 Air temperatures in ducts .168 98
38、.3 Ambient temperatures .168 98.4 Static pressure 168 99 Combustion Test Test No. 1 168 100 Limit Control Cutout Test No. 2 .169 101 Continuity of Operation Test No. 3 170 102 Airow Test Downow and Horizontal Furnaces Test No. 4 171 103 Temperature Tests General 171 104 Continuous Operation Test No.
39、 5 .172 105 Blocked Inlet Test No. 6 .172 106 Fan Failure Test No. 7 172 107 Blocked Outlet Test No. 8 .173 108 Stalled Fan Motor Test 173 OCTOBER 27, 2006 UL 2096 7UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL PART V DRAFT HOOD EQUIPPED D
40、EVICES PERFORMANCE 109 Blocked Outlet Test No. 1 .174 110 Downdrafts and Updrafts Test No. 2 174 111 Spillage Test No. 3 .175 112 Draft Hood Strength Test No. 4 .176 PART VI OUTDOOR-USE EQUIPMENT CONSTRUCTION 113 General .176 114 Enclosures .176 115 Field Wiring Connections 179 116 Wiring .179 117 E
41、lectrical Insulation Material .179 118 Water Spray Test Test No. 1 .180 119 Wind Tests Test No. 2 183 120 Accelerated Aging Test Gaskets, Adhesives, and Sealing Compounds Test No. 3 . . . .184 121 Metallic Coating Thickness Test Chromic Acid Dropping Test Test No. 4 185 122 Marking .187 APPENDIX A S
42、tandards for ComponentsA1 OCTOBER 27, 2006 UL 2096 8UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL PART I ALL EQUIPMENT INTRODUCTION 1 Scope 1.1 These requirements cover fuel burning heating appliances that are provided with or are intended
43、 for installation with NO x emissions reduction equipment. 1.2 These requirements apply to factory-built equipment having inputs of more than 400,000 Btu per hour (117 KW) (ring gas), and/or more than 3.0 gph (11.4 L/h) (ring oil), per individual combustion chamber and/or oil or combination gas-oil
44、burning equipment which require ame failure and other safeguards and which are intended primarily for commercial and industrial installation. 1.3 Equipment covered by these requirements may be operated without a competent attendant being constantly on duty at the burners while the burners are in ope
45、ration. 1.4 The heating appliance shall be suitable for installation in accordance with the National Fire Protection Association Standards for the Installation of Oil-Burning Equipment (National Fire Codes, Vol. 1), ANSI/NFPA 31, and/or National Fuel Gas Codes (IAS/A.G.A. Z223.1-1996), NFPA 54 and t
46、he National Electrical Code, NFPA 70. 2 Units of Measurement 2.1 If a value for measurement is followed by a value in other units in parentheses, the second value may be only approximate. The rst stated value is the requirement. 2.2 Unless indicated otherwise, all voltage and current values mentione
47、d in this standard are rms. 3 Components 3.1 Except as indicated in 3.2, a component of a product covered by this standard shall comply with the requirements for that component. See Appendix A for a list of standards covering components generally used in the products covered by this standard. 3.2 A
48、component is not required to comply with a specic requirement that: 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. 3.3 A component shall be used in accordance wit
49、h its rating established for the intended conditions of use. 3.4 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 temperatures not exceeding specied limits, and shall be used only under those specic conditions. OCTOBER 27, 2006 UL 2096 9UL COPYR
