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j ---- <br /> (� �-) <br /> �n r��.�.o.��ooa.,'�i a�n <br /> n ��' • PLos�hould�how t6�t the Idtchea achaust canopy-tYPe hood mcteod;a minimum 6 <br /> � � i�has beyond the coolriog�ufece on all opea aides in compliance wiW Sactioa 508.6 <br /> a4 <br /> �� 'fhe kitchea exha�st ahould have maka-up sir auppliad to the room equal to the <br /> � �mo�mt to be exhau�oed. 'ILe m�ice-up air systam should be i�alocked with the <br /> exh�t aystem. 3ection 402.4 <br /> a��� Kitchen m�haust ayatema slauld be providcd with ap�+oved Sre-e�cdnguiahinB <br /> �7 cquipmeat Section 509.2 <br /> �The vertical dis�atice between cenopy-type hood and cooking surfacz should not <br /> exceed 4 faK. Section 508.6 • <br /> Type I hoods only <br /> A solid fuel charbroiler should be provided with a sepazate exhaust system, <br /> independent of all other systems serving other cooking appliances. Section 508.7.1 <br /> Kitchen ventilation duct gage for a Type I hood s6ould be at least No. 16 gage steel or <br /> No. 18 gage stainless steel. Hoods should be No.22 gage scal. Sections 507.3 & <br /> SOR <br /> / Kitchen veatilation duct should slope not less than 1/4 inch per lineal floor in 12 units <br /> horizontal(2%slope)Wward the hood where the duct length dces not excad 75 feet. <br /> Secdon 507.4 <br /> R��- � Cleanout locations should be iadicated on the exhaust duct. Section 507.5 <br /> ' - 1l <br /> � The kitchen exhaust duct should be enclosed in at least a one-hour shaft(or two-hour ` <br /> shaft in Type I or Type II FR buildings). Section 507.6 <br /> � 'I7�e duct enclosure shoutd be sea[ed around the duct at the point of penehation and <br /> vented to the exterior at the point of teiminatioa Secdon 507.6 <br /> � The shaft should be separated from the duct by at least 3 inches and not more thsu 12 <br /> mches and should serve a single grease exhaust system. Sectian 507.6 <br /> � The siu of the kitchen exaaust hood end duct,aad the fan's cubic-feet-per-minute <br /> (L/s)rating, should be provided to allow for the review of air quanddes and <br /> velocities in the duct to ensure compliance with Sections 507.8 8c 507.9 <br />