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145 ORDINANCE No. 163 ARTICLE III SECTION 3 - 1 SCOPE . The construction arrangement, manner of installation, alteration and repair of all gas burners in steam and hot water boilers, furnaces and air heaters having an input capacity exceeding' 400,000 BTU per hour, and for power, industrial and process uses shall conform to the prov;i.sions of this Article (3) of this ordinance. The requirements for installation of gas burning equipment in power boilers as adopted .by the Ameriean Standards Association, sponsored by the American Gas Association, shall be considered herein as minimum requirements. SECTION 3 - 2 DEFINITIONS: For the purpose of this ordinance the following definitions shall apply: (a) Gas Burners and Gas Burner Equipment: The term "gas burner" shall mean a device for the final conveyance of gas or a mixture of gas and air to the combustion zQne-of a steam or hot water boiler, furnace or to any device or appliance used in connection with a space heating system, and shall include conversion burners, gas designed heating appliances, power gas burners and atmospheric gas burners. The term "Gas burner equipment" sh~ll include gas burners as above defined, together with all fans, blowers, control devices, accessories connected to the burners, and piping involved in supplying the burner. (b) Conversion Burner: The term "conversion burner" shall.mean a gas burning appliance designed to supply gaseous fuel to and properly burn same in the combustion chamber of a boiler, furnace or other device originally designed to burn fuel. (c) Power Ga~ Burner: A "Power Gas Burner" is a device in which either the gas or air or both are supplied at pressure exceeding, for gas, the house line pressure and for air, atmospheric pressure. (d) Atmospheric Burner: An "Atmospheric Burner" is a device in which air at atmospheric pressure is injected into the burner by a jet of gas under pressure. SECTION 3 - 3 GENERAL All burners shall be accomp~ied by complete and comprehensive installa- tion and operating instructions. SECTION 3 - 3.1 . Where burners are equipped with secondary air shutters or louvres, they must be so designed or counter-balanced so a~ to drop to a wide open position in the event of failure or breakage of connecting linkage. They shall also be of sufficient area to supply adequate air for complete combustion under specified draft conditions and at the maximum rate of firing.