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I. Makeup Air(508): <br /> 1. Applicant shall provide makeup air approximately equal to the exhaust. /7 " CFM. <br /> 2. Makeup air system shall be electronically interlocked with the exhaust system, such that the makeup <br /> air system will operate when the exhaust system is in operation. Provide note on plan sheet no. <br /> 3. Makeup air shall be provided by a mechanical or gravity means of sufficient capacity. Windows and <br /> door openings shall not be used for the purpose of providing makeup air. <br /> Fan Motorized Damper <br /> c..97, V C <br /> Make and Model: OV 95 64/'/x- H.P.: 3jt`r Recommended air velocity, 500 fpm <br /> Duct Area <br /> Static Pressure:3in. at Requirement= ( 760 /500=CFM 21 00 CFM/500 fpm <br /> C CFM ft.2 <br /> Duct Dimension <br /> Duct Dimension: t ( 7 ft.2 Requirement= .1. >c 2- <br /> area <br /> Eff. Damper <br /> Air Velocity -22. / /7 = /$3 Opening = 1�j X /9 = <br /> = CFM/area l fpm ft.2 <br /> CFM area <br /> J. Duct Slope and Cleanout Access (506.3.7, 506.3.8, 506.3.9): <br /> 1. Horizontal duct up to 75' long: Minimum Slope % in./ft. Proposed: ( in./ft. <br /> Horizontal duct more than 75' long: Minimum Slope 1 in./ft. Proposed: in./ft. <br /> 2. Tight-fitting cleanout doors shall be provided Total Number Proposed: <br /> at every change in ductwork direction. (WAC506.3.9.1) <br /> 3. Refer to State amendments for vertical ducts. (WAC506.3.9.2) <br /> K. Duct Enclosure (506.3.11): <br /> 1. Ducts penetrating a ceiling, wall or floor shall be enclosed in a duct enclosure having fire rating per <br /> IBC 708.4 from the point of penetration to the outside air. A duct may only penetrate exterior <br /> walls at locations where unprotected openings are permitted by Table 705.8 of 2009 International <br /> Building Code. <br /> Type of Construction Min. Fire-Resistive Proposed Proposed Material <br /> Const. of Enclosure & Construction <br /> F.R., II F.R. 2 hour hr. <br /> II, Ill, IV, V 1 hour hr. <br /> i. <br /> 2. Duct enclosures shall be separated from the duct by at least 6". (506.3.10) Proposed: in. <br /> 3. Duct enclosures shall be sealed around the duct at the point of penetration and vented to the exterior <br /> through a weather-protected opening. <br /> 4. Duct enclosures shall serve only one kitchen exhaust duct. (See multiple hood venting for <br /> exception.) <br /> 5. Tight-fitting hinged access door shall be provided at each cleanout. Access enclosure doors shall <br /> have a fire-resistance rating equal to the enclosure. An approved sign shall be placed on the access <br /> door. "ACCESS PANEL. DO NOT OBSTRUCT." <br />