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GENERAL MECHANICAL MATERIALS AND METHODS <br />Section 15050 <br />15-1207 <br />5. Under -voltage release or protection. <br />E. Motor connections: <br />1. Flexible conduit, except where plug-in electrical cords are specifically indicated. <br />2.10 FIREPROOFING <br />A. Fireproofing to be installed at all pipe and duct penetrations of rated assemblies. <br />B. Fireproofing to be UL Rated fire stop material. <br />C. Acceptable Manufacturers: <br />1. Hilti <br />2. 3M Pro -Set <br />3. Or Equal <br />PART 3 - EXECUTION <br />3.01 VALVE BOXES: <br />A. Provide valve box for all buried valves. Install per manufacturer's written instructions with <br />top of box flush with finished grade. <br />B. Clean all valve boxes of debris. <br />3.02 ACCESS DOORS: <br />A. Access doors shall be furnished and installed wherever valves, balance valves, damper <br />operating mechanisms, air terminal boxes, fans, and similar items normally requiring <br />adjustment or servicing are installed in concealed or inaccessible spaces. Coordinate with <br />access doors shown on architectural Drawings. <br />B. Comply with manufacturer's instructions for installation of access doors. <br />C. Where access panels are detailed on architectural or mechanical Drawings, sizes indicated <br />thereon shall be used. <br />D. Keyed access doors shall be keyed alike. <br />1. Provide owner with 4 copies of keys for access doors. <br />3.03 ROOF FLASHING: <br />A. Provide pipe flashings as noted on the Drawings. <br />B. Flue and duct flashings and storm collars shall be securely clamped around flue or duct <br />storm collar or counterflashing, above flashing. <br />3.04 DIELECTRIC UNIONS: <br />A. Install dielectric unions in the following locations: <br />8 <br />