ANSI CSA AM Z21.76-2016 Gas-fired unvented catalytic room heaters for use with propane gas (Fourth Edition).pdf

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37、 the Canadian Standards Association and CSA America Inc., operating as “CSA Group”American National Standards Institute, Inc.Approved on November 7, 2016 by ANSIGas-fired unvented catalytic room heaters for use with propane gasANSI Z21.76-2016ANSI Z21.76-2016Gas-fired unvented catalytic room heaters

38、 for use with propane gasNovember 2016 2016 CSA Group 1ContentsZ21/83 Technical Committ ee on Performance and Inst allation of Gas Burning Appliances and Relat ed Accessories 3Z21 Technical Subcommitt ee on Standards for Unvent ed Gas-Fired Heating Appliances 6Preface 101 Scope 132 Reference publica

39、tions 143 Definitions 154 Cons truction 204.1 General construc tion and assembly 204.2 Mat erials 224.3 Orifices and orifice fit tings 234.4 Automatic ignition devices 234.5 Oxygen depletion safety shutoff sy st ems 254.6 Manual gas valves 254.7 Gas supply lines 254.8 Thermos tats 274.9 Automatic va

40、lves and safety shutoff valves 274.10 Gas appliance pressure regulator s 284.11 Set ting of minimum input rating 294.12 Electrical equipment and wiring 294.13 Guards, grilles, and screens 424.14 Ins tructions 444.15 Markings 475 Performance 535.1 General 535.2 Tes t Gases 545.3 Inlet tes t pressures

41、 and burner adjustments 545.4 Combus tion and hydr ocarbon emission 555.5 Oxygen depletion safety shutoff sy st ems 605.6 Combus tion s tability t est 615.7 Burner operating charact erist ics 615.8 Pilot operating charact erist ics 625.9 Pilot burners and safety shutoff devices 635.10 Manual gas val

42、ves 665.11 Orifice and orifice fit ting tempe ratures 665.12 Gas appliance pressure regulator s 675.13 Thermos tats 675.14 Automatic valves 675.15 Safety circuit analysis 685.16 Wall, floor , and ceiling tempe ratures 68ANSI Z21.76-2016Gas-fired unvented catalytic room heaters for use with propane g

43、asNovember 2016 2016 CSA Group 25.17 Surface tem peratures 695.18 Evaluation of clothing ignition potenti al 715.19 Temperature at discharge air opening 745.20 Marking mater ial adhesion and legibility 756 Manufacturing and pr oduction t ests 76Annex A (normative) Outline of lighting ins tructions f

44、or appliances equipped with continuous pilots 78Annex B (normative) Outline of operating instructi ons for appliances equipped with inter mitt ent pilot or interru pted pilot sy st ems 81Annex C (normative) Recommended wire color usage 84Annex D (informative) Pertinent references to ANSI Y14.15 85An

45、nex E (informative) Wire color designations 86Annex F (informative) Preferred graphic sy mbols of commonly used it ems, extract ed from stand ard ANSI/IEEE 315, Graphic sy mbols for electrical and electron ics diagrams, and abbreviations for these it ems 87Annex G (informative) Relationship of carbo

46、n dioxide to oxygen in the closed room tes t specified in Clause 5.5 89Annex H (informative) Sample failure modes and effects analysis for component miswiring* 91Annex I (informative) Legibility and design of safety information in catalytic room heat er markings and manuals 92Annex J (informative) T

47、able of conver sion factor s 95ANSI Z21.76-2016Gas-fired unvented catalytic room heaters for use with propane gasNovember 2016 2016 CSA Group 3Z21/83 Technical Committee on Performance and Installation of Gas Burning Appliances and Related AccessoriesB.J. Swiecicki National Pr opane Gas Association,

48、 Frankfort, Illinois, USA Cat egory: Gas SupplierChairM.W. Wilber Crane Engineering, Plymouth, Minnesota, USA Cat egory: General Int erestVice-ChairM. Ali Association of Home Appliance Manufacturer s (AHAM), Washington, Distr ict of Columbia, USA Alt ernateJ. Brania Underwrit er s Laboratories Inc.,

49、 Melville, New York, USA Cat egory: Research/Testi ngJ.H. Cut ts Home Depot U.S.A. Division of Home Depot Inc., Atlanta, Georgia, USA Cat egory: Gas SupplierM. Deegan Clearwat er Gas Syst em, Clearwat er , Florida, USA Cat egory: Regulator y/Government AgencyM. Diesch Lennox Int ernational Inc., Carr ollton, Texas, USA Cat egory: ManufacturerJ.M. Emmel Virginia Tech, Blacksburg, Virginia, USA Cat egory: Consumer/User Inte restG.A. Gress Int ernational Code Council (ICC), Country Club Hills, Illinois, USA Cat egory: Regulator y CodeANSI Z21.76-2016Ga