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i <br /> � <br /> PART 3 -EXECUTION I • <br /> 3.1 EXAMINATION � <br /> i <br /> A. Examine areas where diffusers,registers, and grilles are to b I <br /> installed for compliance with requirements for installation <br /> tolerances and other conditions affecting performance of <br /> equipment. Do not proceed with installation until unsatisfactory <br /> conditions have been conected. <br /> 3.2 INSTALLATION <br /> A. Install diffusers,registers, and grilles level and plumb, accordi�ng to <br /> manufacturer's written instructions, Coordination Drawings, I <br /> original design, and referenced standards. <br /> B. Ceilina-Mounted Outlets and e • a ' ' d'c t � e I I <br /> b Inl ts. Dr wmgs in i a e ben ra <br /> arrangement of ducts, fittings,and accessories. Air outlet and linlet <br /> locations have been indicated to achieve design requirements for <br /> air volume,noise criteria, airflow pattern,throw, and pressure <br /> drop. Make final locations where indicated, as much as <br /> practicable. For units installed in lay-in ceilinD panels, locate units <br /> in the center of the panel. Where architectural features or othez • <br /> items conflict with installation,notify Architect for a determination <br /> of fmallocation. <br /> C. Install diffusers,registers, and grilles with airtight connection to <br /> ducts and to a11ow service and maintenance of dampers, air � <br /> extractors, and fire dampers. � <br /> 33 ADJUSTING I <br /> � IIA. After mstallation, ad�ust difFusers,registers, and gnlles to air I <br /> patterns indicated, or as directed, before starting air balancing• I <br /> 3.4 CLEANING I <br /> � <br /> A. After installation of diffusers,registers, and grilles, inspect � <br /> exposed finish. Clean exposed surfaces to remove burrs, dirt, arid <br /> smudges. Replace diffusers,registers, and grilles that have I <br /> damaged finishes. i <br /> END OF SECTION ' <br /> � <br /> � • <br /> � <br /> I <br /> ICT 99184 � <br /> 15855 - 2 �, <br /> � <br /> I <br />