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the Economic and Urban Development Department as fully as if said <br /> designation was set out therein in lieu of such words. <br /> 6. DELETIONS. The following numbered articles or sections of <br /> said Code are deleted therefrom and the provisions thereof are not adopted hereby: <br /> M Section No. (inclusive) <br /> 103-103.2 108.4 304.10 <br /> 106.5.2 - 106.5.3 109 603.5 <br /> 7. AMENDMENTS. (b) M 108.4 by deleting the words "of not <br /> less than(amount) dollars or more than(amount) dollars. <br /> (d) M304.10 Guards. Guards shall be provided where appliances, <br /> equipment, fans or other components that require service are located within 10 feet <br /> of a roof edge or open side of a walking surface and such edge or open side is <br /> located more than 6 feet above the floor, roof or grade below. The guard shall <br /> extend not less than 30 inches beyond each end of such appliance, equipment, fan <br /> or component and the top of the guard shall be located not less than 42 inches <br /> above the elevated surface adjacent to the guard. The guard shall be constructed <br /> so as to prevent the passage of a 21 inch diameter sphere and shall comply with the <br /> loading requirements for guards specified in the International Building Code. <br /> Exception: HVAC equipment located on a roof with the service side of the unit <br /> located 10 feet or more from the roof edge guards are not required, provided the <br /> distance from any side of unit is not less than 6 feet from the roof edge. <br /> Exception: Appliances, equipment, fans and other components located on a flat <br /> roof enclosed by parapet walls not less than 36 inches high, no guards required. <br /> (e). M603.5. Nonmetallic ducts. Fibrous duct construction, specifically <br /> duct board material, shall not be used as Class O or Class 1 air duct. i <br /> (fl M603.6. Flexible air ducts and fle�ble air connectors. Fle�cible air ' <br /> ducts, both metallic and nonmetallic, shall comply with Sections 603.6.1, 603.6.3 I <br /> and 603.6.4. Flexible air connectors, both metallic and nonmetallic, shall comply '� <br /> with Sections 603.6.2 through 603.6.4. Flexible air ducts and flexible air ', <br /> connectors shall be used only in non-conditioned spaces or above suspended <br /> ceiling installations. <br />