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New Castle Mechanical <br /> 9823 160th St E Suite A Puyallup WA 98375 Office(253)503-7390 Fax No(253)503-7392 <br /> July 8th, 2018 <br /> RE: Grease duct replacement for Los Potrillos 8825 Evergreen Way, Everett, WA 98208 <br /> New Castle Mechanical to replace existing grease duct from hoods to exhaust fan on roof. <br /> Type 1 grease duct to be constructed of fully welded 16 gauge steel per IMC 506.3.1.1 <br /> Type 1 grease duct to be welded in compliance with IMC 506.3.2 All duct to hood joints to comply with IMC <br /> 503.3.2.2 all duct joint types to comply with IMC 506.3.2.1 and all duct to exhaust fan connections to comply <br /> with IMC 506.3.2.3 and all grease duct clearances to comply with IMC 506.3.6 <br /> Grease duct to be wrapped with 3M Fire Barrier Duct Wrap 615+ (see enclosed specifications for details) <br /> In compliance with IMC 506.3.6 <br /> Grease duct to have clean-outs installed at all 90's and/or every 10' per IMC 506.3.8 Clean outs will be <br /> constructed with Ductmate Hi-Temp rated access doors (see enclosed specifications) <br /> /14 (VI..jog <br /> IISSUIS <br /> JUL 1 0 2018 <br /> ERETT <br /> CITY OF EVERETT �UECITY] �OF EOR PERMIT <br /> Perm itServicesacii 07/o�idi8 <br />