1、ANSI Z83.4-2017 CSA 3.7-2017Non-recirculating direct gas-fired heating and forced ventilation appliances for commercial and industrial applicationLegal Notice for StandardsCanadian Standards Association and CSA America, Inc. (operating as “CSA Group”) develop standards thro ugh a consensus standards
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19、d forced ventilation appliances for commercial and industrial applicationRevision from previous edition Revision symbol (in margin)Clause 1.1Annex BStandards Update ServiceANSI Z83.4-2017 CSA 3.7-2017March 2017Title: Non-recirculating direct gas-fired heating and forced ventilation appliances for co
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37、ore at shop.csa.caor call to ll-free 1-800-463-6727 or 416-747-4044.A trademark of the Canadian Standards Association and CSA America Inc., operating as “CSA Group”American National Standards Institute, Inc.Interprovincial Gas Advisory CouncilApproved on June 29, 2016 by ANSIApproved on June 29, 201
38、6 by IGACEffective in Canada February 1, 2018Non-recirculating direct gas-fired heating and forced ventilation appliances for commercial and industrial applicationANSI Z83.4-2017 CSA 3.7-2017ANSI Z83.4-2017 CSA 3.7-2017Non-recirculating direct gas-fired heating and forced ventilation appliances for
39、commercial and industrial applicationMarch 2017 2017 CSA Group 1ContentsInt erpro vincial Gas Advisory Council 3Z21/83 Committ ee on Performance and Insta llation of Gas Burning Appliances and Relate d Accessories 5Technical Committ ee on Gas Appliances and Relate d Accessories 8Joint Z83/CSA Techni
40、cal Sub-Commit tee on Standards for Gas-Fired Heavy -Duty Forced Air Heate rs 11Preface 141 Scope 182 Reference publications 193 Definitions 224 Cons truction 304.1 General construc tion and assembly 304.2 Assembly 314.3 Accessibility 324.4 Main burner s 324.5 Combus tion air control 334.6 Orifices
41、and orifice fit tings 334.7 Automatic gas ignition s ys tems 334.8 Flame safeguards 344.9 Valve trains 364.10 Manual gas valves 374.11 Gas supply lines 374.12 Atmospheric vents and gas reliefs or bleeds 404.13 Automatic valves and safety shutoff valves 414.14 Gas appliance pressure regulator s 424.1
42、5 Discharge air , purge, limit contr ols, and int erlocks 424.16 Thickness of mater ials 444.17 Fan motor s 464.18 Fans 494.19 Air filter s 494.20 Pr ot ection of service per sonnel 504.21 Operating and instal lation instructi ons 524.22 Marking 555 Performance 585.1 General 585.2 Tes t gases 605.3
43、Tes t pressure and burner adjustments 615.4 Basic tes t arrangement 615.4.1 Tes t duct outlet 61ANSI Z83.4-2017 CSA 3.7-2017Non-recirculating direct gas-fired heating and forced ventilation appliances for commercial and industrial applicationMarch 2017 2017 CSA Group 25.4.2 Tes t duct inlet 625.4.3
44、Ins trumentation 625.5 Air throughput measurement 655.6 High tempe rature limit contr ol sy st em 665.7 Air flow sensing sy st ems 665.8 Operating tempe rature control sys tem 685.9 Combus tion 695.10 Burner operating charact erist ics 725.11 Pilot ed ignition sy st ems 725.12 Direct ignition sy st
45、ems 735.13 Gas appliance pressure regulator s 745.14 Automatic valves 755.15 Burner and heat er input rating deter mination 755.16 Manifold and contr ol assembly capacity 755.17 Wall, floor (optional), ceiling, electrical equipment, and wiring tem peratures 765.18 Electrical continuity , leakage, an
46、d dielectric s trength 765.19 Heat ers for out door ins tallation 775.20 Rain and wind tes ts for inlet air openings 805.21 Marking mater ial adhesion and legibility 826 It ems unique to the United State s 836.1 Electrical equipment and wiring 836.2 Cons truction requirements 957 It ems unique to Ca
47、nada 967.1 Ins tructions and markings 967.2 Electrical equipment and wiring 967.3 French translations for quoted ins tructions and markings 968 Manufacturing and pr oduction t ests 98Annex A (normative) Emissions protocol 100Annex B (informative) Protocol for the Measurement of and Emissions Ratings
48、 for Nitro gen Oxides and Carbon Monoxide fr om Direct Gas-Fired Heate rs 113Annex C (informative) Pertinent references to ANSI Y14.15 115Annex D (informative) Wire color designations 116Annex E (informative) Recommended wire color usage 117Annex F (informative) Preferred graphic sy mbols of commonl
49、y 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 118Annex G (informative) Table of conver sion factors 121ANSI Z83.4-2017 CSA 3.7-2017Non-recirculating direct gas-fired heating and forced ventilation appliances for commercial and industrial applicationMarch 2017 2017 CSA Group 3Interprovincial Gas Advisory CouncilJ.R. Mar shall Technical Standards suggestions for its improvement will be referred to the appropriate committ ee. To submit a
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