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0 0 <br />Makeup Air (608): <br />1. Applicant shall provide makeup air approximately equal to the exhaust. 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 <br />Motorized Damper <br />Make and Model: <br />vW r <br />H.P.: <br />Recommended air velocity, 500 f m <br />Duct Area <br />Static Pressure: <br />in. at <br />CFM n �Co o <br />Requirement = <br />CFM/500 fpm <br />/ 500 = <br />t7L <br />CFM <br />ft.Z <br />Duct Dimension: <br />r� 9-Duct <br />ft.' <br />Dimension <br />Requirement = <br />area l <br />Air Velocity <br />= CFM/area <br />/ _ � 7�0 <br />g700 ! fpm <br />Eff. Damper <br />Opening = <br />X = <br />ft.Z <br />CFM area <br />J. Duct Slope and Cleanout Access (606.3.7, 606.3.8, 606.3.9): ykl *5- - <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 (606.3.11): <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 />I F.R., II F.R. 2 hour hr. <br />II, III, IV, V 1 hour hr. <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 />5 <br />