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City of Santa Ana Public Library Renovation <br />Group 4 Architecture Research + Planning, Inc.Smith, Fause & McDonald Inc. <br />Group 4 Project No. 22575-01 Conform Set – August 2, 2024Bid Set Addendum-03 – June 05 <br />INTEGRATED AUDIOVISUAL SYSTEMS AND EQUIPMENT SECTION 27 4116-69 <br />A.Inspection <br />1.General: Examine surfaces and rough framing to determine suitability to install <br />screen and mount. Do not start work until unsatisfactory conditions are corrected. <br />B.Installation <br />1.Install screen and projector mount horizontal and plumb for proper operation per <br />manufacturer's recommendations. Securely anchor to supporting structure to <br />withstand all loading conditions and strain of service. <br />C.Adjustment <br />1.Adjust units as required for smooth operation and alignment as required. <br />2.Just prior to final acceptance of project, clean the screen surface according to the <br />manufacturer's instructions. <br />3.Protect completed work from damage until acceptance by the City's Representative. <br />3.11 LOUDSPEAKER ASSEMBLY INSTALLATION <br />A.Loudspeakers: <br />1.Verify proper installation of loudspeaker enclosures and related support. <br />2.Verify that no loudspeaker assembly is subjected to stresses or loading effects in any <br />way contributing to possible extraordinary failure. <br />3.12 VIDEO PROJECTOR ASSEMBLY INSTALLATION <br />A.Design, engineer and provide complete, all means of support, suspension, attachment, <br />fastening, bracing, and restraint (hereinafter "support") of such equipment. Provide <br />engineering of such support by parties licensed to perform work of this type in the Project <br />jurisdiction. Submit in timely manner. <br />B.Comply with applicable Code and the requirements of the Authorities having jurisdiction. <br />C.Provide safety factor greater than six (6) or as required by Code, whichever is greater. <br />D.Mountings shall: <br />1.Permit projector lens to align with top of projection screen. <br />2.Permit Video Projector to be re-oriented at least plus or minus 3o from angles shown <br />on the Contract Drawings for optimum picture. <br />3.Maintain precise location and orientation of Video Projector after such adjustment <br />when subject to normal building motion and Code defined seismic induced building <br />motion. <br />E.Do not apply any load to building structure without first obtaining written approval of the City’s <br />Representative. Obtain per Project procedures. <br />F.During Acceptance Testing, adjust orientation of Video Projector as directed to achieve <br />optimum picture. Provide workers and ladders as required. Perform such adjustment with no <br />claim for additional cost or time. <br />3.13 PERMANENTLY INSTALLED MICROPHONES <br />A.General <br />1.Orient generally as shown in the plans with respect to area of intended pickup. <br />B.Ceiling Mount Microphones