CSA/ANSI Z21.71 : 1993 : INC : ADD A : 2005 : R2012

PART I - CONSTRUCTION
1.1 Scope
1.2 General Construction
1.3 Materials
1.4 Operation
1.5 Electrical Equipment and Wiring
1.6 Instructions
1.7 Homeowner's Information
1.8 Marking
Exhibit A - Recommended Procedure for Safety Inspection
            of an Existing Appliance Installation as a
            Preliminary Step to Applying an Automatic
            Intermittent Pilot System
Exhibit B - Procedure for Installing Automatic
            Intermittent Pilot Systems
Exhibit C - Wire Color Designations
Exhibit D - List of Reference Standards
PART II - DEFINITIONS
APPENDIX A - Pertinent References to ANSI Y14.15
APPENDIX B - Preferred Graphic Symbols of Commonly Used
             Items, Extracted from ANSI/IEEE Standard 315,
             Graphic Symbols for Electrical and Electronics
             Diagrams and Abbreviations for These Items
APPENDIX C - Table of Conversion Factors
LIST OF Z21 SERIES OF AMERICAN NATIONAL STANDARDS FOR
 GAS APPLIANCES AND GAS APPLIANCE ACCESSORIES

Outlines construction and installation requirements for newly produced automatic intermittent pilot ignition systems, designed to be adapted to continuous pilot burners on air heating appliances and boilers which have atmospheric burners.