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KITCHEN EXHAUST HDDD CALCULATIONS <br />2'-6' Ft.(ixf) hoop nn i <br />Use CFM <br />REVISIONS <br />Duct Area = 113 Sq. In. <br />ir-o* dan hoop Tfft i <br />Subject:NSF Ccrtinritlon in Standard 2 <br />Dear Mr. Eapadat. <br />To Use 6 Filters of size 19'xl9' <br />Actual Filter Area <br />Joroe <br />If )OU hate an) question* pirate contact me. <br />Jofpe GonzaJez <br />6. GAUGE AND METAL TYPE OF HOOD = 22 GA SteelSincerely May-2024 <br />7. GAUGE AND METAL TYPE OF DUCT = 16 GA Steel <br />ISI <br />Tbit authorization citcnded bat Knot limited to, their Custom Cablnetn. Refrigerator counters with self closing <br />drawers and or doors. Sinks Tables and Eshaust floods. <br />Please note that their Refrigerated units are components that are made and sold without Compressions and/or <br />Etaporators. Those are to be supplied by others upon installation. <br />Since Air Velocity is Between 300 and 600 FPM, Therefore, Selected <br />Filter Size and Number Above Are ok. <br />To Use 19'xl9' Filters <br />Area Per Filter = 361 Sq. Inches <br />= Total CFM Removed / 3 <br />= 2,362 Sq. Ft. <br />This Certifkation does not estrad to electrical or gas operated products that are designed Io pros ide safe <br />temperatures during the storage, holding, rethcrmalizatlon. or rapid pull or food products. <br />This Confirms that N/E Metal Products Is authorized to ptace NSF Mark on the Custom Equipment that they <br />manufacture at their prodnetieo facility located at 2210 Durfee in El Monte. California. <br />Mr. Nicolas Espadas <br />N/E Metal Products <br />1210 Durfee Avenue <br />El Monte. CA 01732 <br />2. CFM TD BE REMOVED: <br />10 x 300 (MEDIUM DUTY HOOD) <br />3000 Cubic Feet/Mlnute <br />Dave l.aMoreaut <br />Senior Certification Project manager <br />NSF Inlrmational <br />Phone: 734-769-5388 <br />Fas: 734-827-7156 <br />E-mail: tamoreaus a nsf.org <br />3. DUCT DIMENSIONS! <br />Rounded Duct = 12'= 113 In. <br />Required No. of Filters = 2362/361 <br />= 6 Mln. <br />= 2 x 300 <br />= 600 Sq. Inches <br />WsTUDh <br />113 M CMh tt. <br />OdsMtCMMim) <br />H- <br />©TbtM plant, Copyrqhlad b <br />tht tote proparty of Studio 76 <br />use on thia projaet eppaarm <br />T«a Bloc* of tiato piam r <br />projacl Any unbwtil uaa of <br />result in appropriala civil <br />anyona miaap prop rating Vi <br />thair trenafareaa. <br />1. HOOD DATA; Internal length = 10'-0' Ft. <br />Internal Vidth <br />Air Velocity = Required CFM / Actual Filter Area <br />= 600 <br />FL <br />I <br />I <br />IL <br />L. <br />HOOD FILTERS <br />SCALE " - f-O* <br />~I <br />I <br />I <br />I <br />I <br />J <br />SJi <br />I___ <br />TOP VIEW <br />SCALE f - I’-tf <br />NSF (nle rna t i o pa I w <br />Since V = 2,362 Are Between 1500 & 2500 FPM Therefore, Round Duct <br />12' Is ok. <br />5. GREASE FILTERS (1 SQ. INCH PER 3 CFM REMOVED): <br />Filter Area <br />4. DUCT VELOCITY (1500 TO 2500 FPM) <br />V= Total CFM / Duct Area <br />=144/113= 1.27 <br />V= 3000/1.27 = 2,362 FPM, For Rectangular Ducts.