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. . . � � <br /> !. Makeup air �, .2� <br /> ctm. <br /> 1. Applicant shall provide makeup air not less than 9�qe Of Ihe e:chaust. _.__.___�i�-�. <br /> 2. Makeup air system shall be electrically interloc{ced with the axhaust��,�:�:n'�• "1`,'jan�he�;�o3keup air <br /> system will operate when the exhaust system is in operation. Provir:- �:; . ��� � <br /> 3. Makeup air shall be provided by a tan or motorized darrper of sufficieni capar,ity, Windows and docr <br /> openings shall not be used for the purpose of providing rr�akeup air. <br /> 4. If more!han 2500 c(m supplied to the spaco other than the hood, provide heater capable of heating t <br /> makeup air supplied to the space to Pd[BTUs=— Output BTU — <br /> 'rlea;ar model # AFUE <br /> Heater CFM _�— <br /> � 0�v�H�v <br /> FAN �/ (i R�j�� �Z�i�� MOTO ZED DAMPER <br /> � 'V H,p Recommended air velocity, 500(pm <br /> Make and model <br /> Static pressure ti in. at cfm. Duct area req. = cfm1500(pm /500 =_h2 <br /> Duct Dimension ����� arja�ftZ Duct. Dimension req. _ <br /> Air velocity = cfm/area��� I��� Eff. Damper opening <br /> x_ = ftz <br /> _ �G�po fpm • <br /> �. Siope of duct and cieanout access �/� <br /> ro osed �— inlft <br /> 1. Horizontal duct Iess than 75'long min slope 1/4 inlft proPo;,ed _— 'n�'� <br /> ' more than 75'long min slope 1 inlft P P ' <br /> 2. Tight•fitting deanout doors shall be provided at Total no. proposed ' <br /> every change in duclwork direclion. <br /> K. Duct enclosure <br /> 1. Ducts penetrating a ceiling,wall or iloor shall be enclosed in a duct enclosure from the point of <br /> penetration to the outside air. A duct may oniy peneVate exterior walis at locations where unprotected <br /> openings are permitted by Table 5A of the 1997 Seattle Building Code. <br /> 2. For code compliance purposes, R is acceptabie to assume ihat ducts peneVaGng concrete, brick or steel <br /> ceilings,wails or iloors shall require a 2-hour fire-resistive duct enclosure, and tor others,it shaii be 1 hour. <br /> Type of Const Min.Fire-Resistive Proposed Proposed Material and Construction <br /> Const.of Enclo�ure <br /> I F.R., I� F.R. 2 hour _hr. <br /> II, III, IV,V <br /> 1 hour �hr. ���� � r.� /w �� � <br /> 5. Duct enc�sures shall be separated from ihe duct by at least 3 and nct mae ihan 12 inches.Proposed <br /> in. <br /> 4. Duc�enclosure shall be sealed around lhe duct at the point of penetration and vented to ihe exterior <br /> through a wealher•protected opening. �' �-- <br /> 5. Duct enclosures shall serve only one kitchen exhaust duct. <br /> 6. Tight-fitting access openings shail be provided at each cleanout door. Access enctosure doors shall <br /> have a fire-resistance rating equal to the enclosure. <br /> L Muitiple hoad venting ` <br /> 1. Number of hoods vented by a singie duct system: ro�nded <br /> A single duct system may serve more ihan one hood located in the same story of the bwlding, p <br /> that the interconnecting ducts do not penetrate any fire construction. <br /> 2. A hcod outlet shall serve not more than a 12-foot section of hood. Sheet��� <br />