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1 . � � <br /> I <br /> I <br /> � I <br /> i � <br /> � I <br /> M:r. Todd Reichard -2- August 30, 1994 <br /> � <br /> , ; <br /> ' <br /> . I <br /> , <br /> COMMENT: <br /> AC-3 The outside air duct from OAI-1 and the exhaust duct for <br /> EF-18 shall be located in a rated shaft with fire/smoke <br /> ; dampers installed at each duct penetration of the rated <br /> ' shaft. <br /> ; <br /> The fire rated shaft shall run continuous to the roof. <br /> i The main trunk duct for both outside air and exhaust must I <br /> j !be run within this shaft from its origin at the second <br /> I � floor penetrations to their respective roof mounted <br /> ' �outside air intake and exhaust fan. Fire/smoke dampers <br /> i shall be provided for all branch duct penetrations of the <br /> �rated shaft. The outside air intake shall be a minimum <br /> � of 3-feet above the roof and a minimum of 10-feet clear <br /> of any exhaust or plumbing vent. <br /> I ' <br /> RESPONSE• � � <br /> I <br /> � Have complied. See Drawing M-18, Star 2, dated August <br /> � ;19, 1994. Refer to Architectural Supplimental Drawing <br /> �SD-16. <br /> � <br /> I� . <br /> CC�MMENT: � <br /> ; , <br /> AC-5 �Provide a minimum air differential pressure of 75 CFM for <br /> � �Toilet 164A. <br /> I <br /> RESPONSE: - <br /> ' �Room 164A is not a toilet room. This room is part of <br /> � ;open Office Area 163. <br /> i <br /> I <br /> COMMENT• � <br /> AC-6 IProvide the air quantity for all existing air devices to <br /> �remain and those that are to be removed. Provide <br /> �information for the rebalancing of the existing systems <br /> �after the air devices have been removed. <br /> ' Please show the air quantities for all the existing to <br /> remain and the new air distribution devices on Drawing M- <br /> �16. The drawings shall show how � the pressure <br /> relationships of adjacent spaces are toibe maintained ; <br /> during the demolition of the duct systems for the i <br /> renovated areas. The drawings shall give the contractor �� <br /> clear and specific direction on how the HVAC systems are � <br /> ' to be balanced. � <br /> � ; � <br /> � <br /> I � I <br /> � <br /> I ' I I <br /> � � <br />