CSA/ANSI Z21.10.1:19 Gas water heaters, volume I, storage water heaters with input ratings of 75,000 Btu per hour or less. 4.30 Automatic flue damper devices 67 4.31 Electrical equipment and wiring 69 4.32 Vent and air-intake pipes of direct vent systems 83 4.33 Instructions 84 4.34 Marking 97 S Performance 110 5.1 General 110 5.2 Test gases 115 5.3 Test pressures and burner adjustments 117 5.4 Combustion 117 5.5 Burner and pilot operating characteristics 120 5.6 Category determination 122 5.7 Piloted ignition systems 126 5.8 Proved igniter systems 131 5.9 Direct ignition systems 133 5.10 Heat roll out safety shutoff means 135 5.11 Heat required to supply daily quota of hot water 136 5.12 Gas appliance pressure regulators 138 5.13 Storage heater temperature limits 138 5.14 Temperature limiting systems 140 5.15 Evaluation of burn hazard potential of exterior surfaces 141 5.16 Wall, floor, and ceiling temperatures 145 5.17 Non-metallic vent material temperatures 147 5.18 Flue gas temperature 148 5.19 Temperature of manually operated parts 149 5.20 Burner and flame spreader temperatures 149 5.21 Flue collars 151 5.22 Draft hoods 151 5.23 Automatic vent damper devices 155 5.24 Automatic flue damper devices 155 5,25 Draft tests for water heaters equipped with power burners 159 5.26 Wind test 161 5.27 Safety circuit analysis .164 5.28 Capacities of storage vessels 164 5.29 Hydrostatic test 165 5.30 Heat pipe heat exchanger pressure 166 5.31 Burner durability 167 5.32 Venting systems for Category II, Ill, or IV water heaters 167 5.33 Condensate disposal system(s) 168 5.34 Rain tests 169 5.35 Direct vent systems 171 5.36 Marking material adhesion and legibility 178 5.37 Flammable vapors ignition resistance 179 5.38 Resistance to lint, dust and oil accumulation 188 CSA/ANSI Z21.10.1 pdf download.
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