Laserfiche WebLink
( i , 4 <br /> { <br /> L. Multiple Hood Venting(506.3.5): <br /> 1. Number of hoods vented by a single duct system: Proposed: ii. <br /> A single-duct system may serve more than one hood located in the same story of the building, <br /> provided that the interconnecting ducts do not penetrate any fire resistance rated construction and <br /> are located in adjoining rooms;and the grease duct system does not serve a solid fuel-fired <br /> appliance. <br /> 2. An unlisted hood outlet shall serve not more than a 12-foot section of hood. <br /> M. Provide seismic restraint vertical support and attachmentdetails for the hood;shall be prepared <br /> by someone knowledgeable in structural engineering.(IMC 301.15,IBC 1613,ASCE7-06) Hoods <br /> and equipment over 400 pounds require calculations and details for review. <br /> N. Additional Information—Type I Hood Only: <br /> 1. Grease filters shall be installed at a minimum 46 degrees angle and <br /> equippedwith drip tray end gutter beneath lower edge of filters. Proposed: degrees <br /> 2. Distance limen lowest edge of grease filters and cooking surface of: <br /> Grill,fryer,exposed flame shall not be not be less than 2 It. Proposed: 1 ft <br /> Exposed charcoal,charbroil shall be not less than 3'A ft.(507.11) Proposed: ft. <br /> 3. Type 1 hood and duct shall have clearances from construction of. Proposed: < in. <br /> GWS on metal stud(minimum 3"clearance required)(506.3.6,507.2.6) <br /> GWB on wood stud(minimum 1t"clearance required)(5063.6;507,2.6) <br /> . <br /> PROTECTED I <br /> UNPROTECTED(Combustible Construction) (Wi h 1-hour Fire- Rated <br /> Material and Stud Construction) <br /> Hood Min,Req.18 in. Proposed in. . Min. Req.3 in. (Proposed . in. <br /> i <br /> Duct Mitt, Req. 18 in. Proposed in. Min. Req.3 in. Proposed in_ <br /> 4. Hoods less than 12 inches from ceilings or walls shall be flashed solidly. <br /> 5. All joints and seams shall be made with continuous liquid-tight weld or braze made on the external <br /> surface of the duct system. Vibration insulation connector may be used provided it consists of <br /> noncombustible packing in a metal sleeve joint. (506.3,2,506.3 2.4) Joints shall be smooth and <br /> accessible for inspection (506.3.2.5)A light test shall be performed. <br /> 6_ Exhaust fans used for discharging grease exhaust shall be positioned so that the discharge will not <br /> impinge on the roof. The fan shall be provided with an adequate drain opening at the lowest point to <br /> permit drainage of grease to a suitable collection device. (506.52) <br /> 7. Fire Suppression Svstern Fire Suppression System shall be per Fire Code. Portable extinguisher <br /> shall also be provided per Fire Code. Provide automatic shutoff for make-up air,exhaust system, <br /> and appliances when suppression system is activated. Dependent on suppression agent and <br /> manufacturers requirements. Separate permit is required. <br /> . 8. Performance test certificate of the hood system shall be provided to owner before final approval <br /> Test shall verify property operation,the rate of exhaust,makeup air,capture and containment <br /> performance of the exhaust at normal operating conditions. (507.6) <br /> 9. A pollution-control unit may be required for side-wail terminations.(506.3.13.2) <br /> 1 <br /> Regis. <br /> 1—International Methans'rar Code(2015) <br /> 2—International Building Code{2015) <br /> 3—international Fico Code{2015) <br /> 4—international Fuel Gas Code(2015) <br />