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"Exception: Buildings of noncombustible construction <br />containing only noncombustible materials." <br />Section 910.3, Smoke and heat vents, shall be amended to add Section 910.3.4 to <br />read as follows: <br />"910.3.4 Vent Operation. Smoke and heat vents shall be capable of <br />being operated by approved automatic and manual means. Automatic <br />operation of smoke and heat vents shall conform to the provisions of Sections <br />910.3.2.1 through 910.3.2.3. <br />"910.3.4.1 Sprinklered buildings. Where installed in <br />buildings equipped with an approved automatic sprinkler system, <br />smoke and heat vents shall be designed to operate automatically. The <br />automatic operating mechanism of the smoke and heat vents shall <br />operate at a temperature rating at least 100 degrees F (approximately <br />38 degrees Celsius) greater than the temperature rating of the <br />sprinklers installed. <br />"Exception: Manual only systems per Section 910.2. <br />"910.3.4.2 Nonsprinklered Buildings. Where installed in <br />buildings not equipped with an approved automatic sprinkler system, <br />smoke and heat vents shall operate automatically by actuation of a <br />heat -responsive device rated at between 100°F (56°C) and 220°F <br />(122°C) above ambient. <br />"Exception: Listed gravity -operated drop out vents." <br />Section 910.4.3.1, Makeup air, shall be amended to read as follows: <br />"910.4.3.1 Makeup Air. Makeup air openings shall be provided within <br />6 feet (1829 mm) of the floor level. Operation of makeup air openings shall be <br />automatic. The minimum gross area of makeup air inlets shall be 8 square feet <br />per 1,000 cubic feet per minute (0.74 m2 per 0.4719 m3/s) of smoke exhaust." <br />Section 910.4.4, Activation, shall be amended to read as follows: <br />"910.4.4 Activation. The mechanical smoke removal system shall be <br />activated automatically by the automatic sprinkler system or by an approved <br />fire detection system. Individual manual controls shall also be provided. <br />"Exception: Manual only systems per Section 910.2." <br />Section 912.2, Location, shall be amended to add Section 912.2.3, Hydrant <br />34 <br />